Patent Publication Number: US-11021917-B2

Title: Piston-style drilling mud screen system and methods thereof

Description:
PRIOR RELATED APPLICATIONS 
     This application is a continuation-in-part of U.S. Nonprovisional patent application Ser. No. 15/959,070 entitled “Drilling Mud Screen System and Methods Thereof,” filed on Apr. 20, 2018, which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/598,521 entitled “Improved Drilling Mud Screen System and Methods Thereof,” filed on Dec. 14, 2017, and U.S. Provisional Patent Application Ser. No. 62/491,700 entitled “Drilling Mud Screen System and Methods Thereof,” filed on Apr. 28, 2017. 
    
    
     FEDERALLY SPONSORED RESEARCH STATEMENT 
     Not Applicable (N/A) 
     REFERENCE TO MICROFICHE APPENDIX 
     N/A 
     FIELD OF INVENTION 
     The present invention relates generally to an improved drilling mud screen system and methods thereof and, more particularly, to an improved, piston-style drilling mud screen system with a drilling mud screen puller/installer tool and methods thereof. 
     BACKGROUND OF THE INVENTION 
     Many drilling rigs use drill pipe mud screens that are in-line with the drilling assembly. Typically, drilling mud screens, commonly Type 3 drilling mud screens, are installed on the drill floor or at the bottom of the drill string. If the drilling mud screen is installed on the drill floor, the drilling mud screen must be reinstalled or replaced every time a section of stand pipe is added to the drill string. In other words, the drilling mud screens must be installed at the top of each 90-foot stand of pipe above the rig crew. As each stand of drill pipe is drilled down to the derrick floor, the top drive sub-connection is separated from the drill pipe stand connection and the drilling mud screen is installed to the top of the next stand of pipe going in the hole. This is a dangerous practice that can result in accidents to the crew below. 
     Although the Type 3 drilling mud screen appears to work for single-shoulder API rotary shouldered connection types, it does not work for proprietary double-shoulder high-strength connection types that eliminate the space where the drilling mud screen is typically located inside the pipe. Instead, the nose of the double-shoulder pin connection on the top of the drive sub-connection is decreased to the exact width of the drilling mud screen flange, so that “theoretically” the nose of the double-shoulder pin connection may have the same contact inside the mating drill pipe box and same shoulder bearing stress at optimal connection make-up torque as it would in an unmodified assembly. Further, the dimensions of the shortened nose of the double-shoulder pin may not be adequate for the selected drilling mud screen flange. When the dimensions of the shortened nose of the double-shoulder pin are outside the acceptable connection tolerances of about ±0.000-inch to about ±0.0010-inch, the mating pin and/or box is damaged. Further, rig crews often forget to install the drilling mud screen. This oversight frequently results in damage as the shortened nose of the double-shoulder pin continuously tries to make-up inside the box but fails. These are dangerous practices that can result in drilling mud leaking onto the drilling rig floor creating a slip hazard and/or in a double-shoulder connection failure. Further, this is an expensive practice that rapidly consumes drilling mud screens long before they need to be replaced. 
     If the drilling mud screen is installed at the bottom of the drill string, the drilling mud screen must be brought to the surface to be replaced. This is an inefficient practice that can results in lost drilling time. 
     Thus, an improved drilling mud screen system with a drilling mud screen puller/installer tool is needed to eliminate these problems. 
     SUMMARY OF THE INVENTION 
     In an embodiment, a drilling mud screen system comprises a first body having a first drilling mud inlet, an optional first drilling mud inlet, a first drilling mud outlet and a drilling mud screen access port, an optional drilling mud screen insert, a drilling mud screen, and a first end cap. 
     In an embodiment, the first body has a first end, a second end and a first centerline from the first end to the second end. 
     In an embodiment, the first drilling mud inlet has a second centerline forming a first angle with the first centerline and extending to the first centerline, wherein the first drilling mud inlet is offset from the first end of the first body. In an embodiment, the first angle is from about 20-degrees to about 120-degrees. 
     In an embodiment, the optional first drilling mud inlet has an optional second centerline forming an optional first angle with the first centerline and extending to the first centerline and forming an optional second angle with the second centerline, wherein the optional first drilling mud inlet is offset from the first end of the first body and wherein the optional first drilling mud inlet is offset from the second centerline radially about the first centerline. In an embodiment, the optional first angle is from about 20-degrees to about 120-degrees. 
     In an embodiment, the first drilling mud outlet is at the second end of the first body. 
     In an embodiment, the drilling mud screen access port is at the first end of the first body. In an embodiment, the first end cap is disposed within the drilling mud access port to close and seal the drilling mud access port. 
     In an embodiment, the drilling mud screen is disposed within the first body between the first drilling mud inlet and the first drilling mud outlet. 
     In an embodiment, the drilling mud screen comprises a second body having a second drilling mud inlet, a second drilling mud outlet, a second end cap and a filter. 
     In an embodiment, the drilling mud screen is constructed from AISI 4145 or equivalent, stainless steel or combinations thereof. In an embodiment, the filter has a hardened coating. 
     In an embodiment, the optional drilling mud screen insert is disposed within the first body between the first drilling mud inlet and the drilling mud screen. 
     In an embodiment, the second body has a first end and a second end, wherein the first end and/or the second end of the body has a means to engage a drilling mud screen puller/installer tool. 
     In an embodiment, the second drilling mud inlet is at the first end of the second body. 
     In an embodiment, the filter has a first end, a second end, and openings, wherein the filter is fluidly connected to the second end of the second body via a first connection and/or an optional first end retaining ring. In an embodiment, the filter is straight or tapered from the first end to the second end of the filter. In an embodiment, the filter is tapered from the first end to the second end of the filter. 
     In an embodiment, the filter comprises a plurality of rods having a first end and a second end, wherein the rods are spaced a distance apart to form the openings in the filter. In an embodiment, the rods are tapered from the first end to the second end of the filter. 
     In an embodiment, the filter comprises a formed sheet having drilled holes or slots spaced a distance apart to form the openings in the filter. In an embodiment, the drilled holes or slots are drilled in any configuration and orientation from the first end to the second end of the filter. In an embodiment, the drilled holes or slots are drilled in offset rows or straight rows from the first end to the second end of the filter. 
     In an embodiment, the second drilling mud outlet is at the openings of the filter. 
     In an embodiment, the second end cap is fluidly connected at the second end of the filter via a second connection. In an embodiment, the filter has an optional retaining ring disposed between the first connection and the second connection. 
     In an embodiment, the first body comprises a third body and a fourth body, and wherein the third body is fluidly connected to the fourth body via a union. 
     In an embodiment, one or more of the first body, the second body, the third body and the fourth body are constructed from AISI 4130/75k or equivalent material, AISI 4145 or equivalent, or combinations thereof. 
     In an embodiment, the first body has a first portion and a second portion surrounding the filter, and wherein a second inner diameter of the second portion is larger than a first inner diameter of the first portion to provide a high flow rate of drilling mud through the filter. 
     In an embodiment, the second end cap is a flat plate or a flat plate with holes or slots. In an embodiment, the second end cap is an inverted cone or an inverted cone with holes or slots. 
     In an embodiment, the first centerline of the first body and an inner surface of the second end cap form a cap angle, wherein the cap angle is from about 30-degrees to about 60-degrees. In an embodiment, the first centerline of the first body and an inner surface of the second end cap form a cap angle, wherein the cap angle is from about 35-degrees to about 45-degrees. 
     In an embodiment, a drilling mud screen system, comprises a first body having a first drilling mud inlet, a first drilling mud outlet and a drilling mud screen access port, a drilling mud screen, a plug and a first end cap. 
     In an embodiment, the first body has a first end, a second end and a first centerline from the first end to the second end. 
     In an embodiment, the first drilling mud inlet has a second centerline forming a first angle with the first centerline and extending to the first centerline, wherein the first drilling mud inlet is offset from the first end of the first body. 
     In an embodiment, the first drilling mud outlet is at the second end of the first body. 
     In an embodiment, the drilling mud screen access port is at the first end of the first body. In an embodiment, the first end cap is disposed within the drilling mud access port to close and seal the drilling mud access port. 
     In an embodiment, the first end cap is disposed within the drilling mud access port to close and seal the drilling mud access port. 
     In an embodiment, the plug is disposed within the first body between the drilling mud access port and the first drilling mud inlet. 
     In an embodiment, the drilling mud screen is disposed within the first body between the first drilling mud inlet and the first drilling mud outlet. 
     In an embodiment, the drilling mud screen comprises a second body having a second drilling mud inlet, a second drilling mud outlet, a second end cap and a filter. 
     In an embodiment, the drilling mud screen is constructed from AISI 4145 or equivalent, stainless steel or combinations thereof. In an embodiment, the optional drilling mud screen insert, the optional first end retaining ring and/or the optional retaining ring is constructed from AISI 4145 or equivalent, stainless steel or combinations thereof and/or has a hardened coating. In an embodiment, the filter has a hardened coating. 
     In an embodiment, the second body has a first end and a second end, wherein the first end and/or the second end of the body has a means to engage a drilling mud screen puller/installer tool. 
     In an embodiment, the second drilling mud inlet is at the first end of the second body. 
     In an embodiment, the filter has a first end, a second end, and openings, wherein the filter is fluidly connected to the second end of the second body. In an embodiment, the filter is straight or tapered from the first end to the second end of the filter. In an embodiment, the filter is tapered from the first end to the second end of the filter. 
     In an embodiment, the filter comprises a plurality of rods having a first end and a second end, wherein the rods are spaced a distance apart to form the openings in the filter. In an embodiment, the rods are tapered from the first end to the second end of the filter. 
     In an embodiment, the filter comprises a formed sheet having drilled holes or slots spaced a distance apart to form the openings in the filter. In an embodiment, the drilled holes or slots are drilled in any configuration and orientation from the first end to the second end of the filter. In an embodiment, the drilled holes or slots are drilled in offset rows or straight rows from the first end to the second end of the filter. 
     In an embodiment, the second drilling mud outlet is at the openings of the filter. 
     In an embodiment, the end cap is fluidly connected at the second end of the filter. 
     In an embodiment, the plug comprises a third body having a first end and a second end, wherein the first end of the third body has a means to engage a drilling mud screen puller/installer tool. 
     In an embodiment, the first end of the third body has an optional cavity extending towards but not through the flow surface of the plug. 
     In an embodiment, the third body has an optional port extending from an outer surface of the plug into the optional cavity. 
     In an embodiment, the second end of the third body has a flow surface to direct the drilling mud from the first drilling mud inlet to the second drilling mud inlet. In an embodiment, the flow surface may be selected from the group consisting of a backwards “J” shape, a curved shape, an “L” shape and combinations and variations thereof. 
     In an embodiment, one or more of the first body, the second body and the third body are constructed from AISI 4130/75k or equivalent material, AISI 4145 or equivalent, or combinations thereof. 
     In an embodiment, the first body has a first portion and a second portion surrounding the filter, and wherein a second inner diameter of the second portion is larger than a first inner diameter of the first portion to provide a high flow rate of drilling mud through the filter. 
     In an embodiment, the second end cap is a flat plate or a flat plate with holes or slots. In an embodiment, the second end cap is an inverted cone or an inverted cone with holes or slots. 
     In an embodiment, the first centerline of the first body and an inner surface of the second end cap form a cap angle, wherein the cap angle is from about 30-degrees to about 60-degrees. In an embodiment, the first centerline of the first body and an inner surface of the second end cap form a cap angle, wherein the cap angle is from about 35-degrees to about 45-degrees. 
     In an embodiment, the drilling mud screen system further comprises a transducer subassembly. In an embodiment, the transducer subassembly comprises a body having a drilling mud inlet, a drilling mud outlet and a transducer access port, and a transducer. 
     In an embodiment, the body has a first end, a second end and a first centerline from the first end to the second end. 
     In an embodiment, the drilling mud inlet is at the first end of the body. 
     In an embodiment, the first drilling mud outlet is at the second end of the first body. 
     In an embodiment, the transducer access port has a second centerline forming a transducer angle with the first centerline and extending to the first centerline, wherein the transducer access port is offset from the first end of the body. In an embodiment, the transducer angle is from about 20-degrees to about 120-degrees. 
     In an embodiment, the transducer is disposed within the transducer access port to close and seal the transducer access port. 
     In an embodiment, the drilling mud outlet of the transducer assembly is fluidly connected to the first drilling mud inlet of the drilling mud screen system. 
     In an embodiment, a drilling mud screen puller/installer tool comprises a hollow body, a striker plate, a shaft having a puller/installer plate and an optional stop plate, groove or painted line, a movable sleeve disposed around a portion of the shaft, and a handle. 
     In an embodiment, the hollow body has a first end, a second end and a first length. 
     In an embodiment, the striker plate has a first end and a second end, wherein the first end striker plate is connected to the second end of the body via a first connection. 
     In an embodiment, the shaft has a first end, a second end and a second length, wherein the second end of the striker plate is connected to the first end of the shaft via a second connection. 
     In an embodiment, the puller/installer plate has a first end and a second end, wherein the second end of the shaft is connected to the first end of the puller/installer plate via a fourth connection. In an embodiment, the puller/installer plate has a means to engage a drilling mud screen. In an embodiment, the puller/installer plate has one or more extensions to fit an outlet of a first portion and/or an inlet of a second portion of the body of the drilling mud screen and to rotationally engage a shoulder inside the inlet of the second portion of the body of the drilling mud screen. 
     In an embodiment, the optional stop plate, grove or painted line on the shaft is offset from the first end of the body or the second end of the body. In an embodiment, the stop plate is connected to the shaft via a fifth connection. 
     In an embodiment, the movable sleeve has a first end, a second end and a third length, wherein the movable sleeve is disposed around a portion of the shaft. 
     In an embodiment, the handle is connected to the movable sleeve via a third connection. 
     In an embodiment, one or more of the first, second, third, fourth and fifth connections are welds. 
     In an embodiment, one or more of the body and the movable sleeve are constructed from AISI 4140 or equivalent, stainless steel or combinations thereof. 
     In an embodiment, one or more of the handle and the shaft are constructed from AISI 1018 or equivalent. 
     In an embodiment, one or more of the rounded end, the striker plate and the puller/installer plate are constructed from stainless steel. 
     In an embodiment, a method of installing a drilling mud screen system comprises a) providing a drilling mud screen system, b) stopping a drilling mud pump to fluidly connect the drilling mud screen to the drilling mud pump, c) fluidly connecting the drilling mud screen system in line with and immediately upstream or downstream of the drilling mud pump; and d) operating the drilling mud pump to produce flow of drilling mud through the drilling mud screen system. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the drilling mud screen system to a high-pressure outlet of the drilling mud pump and fluidly connecting a drilling mud outlet of the drilling mud screen system to a vibrator hose or a standpipe. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the drilling mud screen system to a high-pressure inlet of the drilling mud pump and fluidly connecting a drilling mud outlet of the drilling mud screen system to an inlet of a vibrator hose. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the drilling mud screen system to an outlet of a vibrator hose and a drilling mud outlet to an inlet of a standpipe. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the drilling mud screen system to an outlet of a first portion of a standpipe and a drilling mud outlet to an inlet of a second portion of the standpipe. 
     In an embodiment, step e) comprises filtering or screening debris from drilling mud. 
     In an embodiment, a method of installing and using a drilling mud screen system comprises: a) providing the drilling mud screen system; b) stopping a drilling mud pump; c) fluidly connecting a first transducer subassembly, having a transducer, in line with and downstream of the drilling mud pump and fluidly connecting the drilling mud screen system in line with and immediately downstream of the first transducer subassembly; and d) operating the drilling mud pump to produce flow of drilling mud through the first transducer subassembly and the drilling mud screen system. 
     In an embodiment, the method further comprises step (e) monitoring the transducer of the first transducer subassembly for property information immediately upstream of the drilling mud screen system and step (f) using the property information to determine a status of the drilling mud screen system. 
     In an embodiment, step (c) comprises fluidly connecting a first transducer subassembly, having a transducer, in line with and downstream of the drilling mud pump and fluidly connecting the drilling mud screen system in line with and immediately downstream of the first transducer subassembly, and fluidly connecting a gate valve in line with and immediately downstream of the drilling mud screen system, fluidly connecting a second transducer assembly, having a low torque plug valve, in line with and immediately downstream of the gate valve and wherein step (d) comprises operating the drilling mud pump to produce flow of drilling mud through the first transducer subassembly, the drilling mud screen system, the gate valve and the second transducer subassembly. 
     In an embodiment, the method further comprises step (e) stopping the drilling mud pump, step (f) closing the gate valve to isolate the drilling mud screen system, and step (g) pumping cement through the low torque plug valve of the second transducer subassembly, a vibrator hose, a stand pipe, a top drive and a case running tool (CRT). 
     In an embodiment, a method of removing and replacing a drilling mud screen comprises a) providing the drilling mud screen system; b) stopping a drilling mud pump connected to the drilling mud screen system; c) opening a drilling mud screen access port in the drilling mud screen system to remove and replace a drilling mud screen; d) accessing the interior of the drilling mud screen system to pull the plug from the drilling mud screen system; e) accessing the interior of the drilling mud screen system to pull the drilling mud screen from the drilling mud screen system and to install a replacement drilling mud screen into the drilling mud screen system; f) accessing the interior of the drilling mud screen system to reinstall the plug into the drilling mud screen system; g) closing the drilling mud screen access port in the drilling mud screen system; and h) operating the drilling mud pump to produce flow of drilling mud through the drilling mud screen system. 
     In an embodiment, step d) comprises using a puller/installer plate and/or a rounded end of a puller/installer tool to engage and pull the plug from the drilling mud screen system. In an embodiment, step d) comprises using a puller/installer plate and/or a rounded end of a puller/installer tool to engage and pull the plug from the drilling mud screen system and, optionally using a stop plate, groove or painted line of the puller/installer tool to determine when the replacement drilling mud screen is installed into the drilling mud screen system. 
     In an embodiment, step e) comprises using a puller/installer plate of a puller/installer tool to engage and pull the drilling mud screen from the drilling mud screen system. In an embodiment, step e) comprises using a puller/installer plate and/or a rounded end of a puller/installer tool to install the replacement drilling mud screen into the drilling mud screen system. 
     In an embodiment, step f) comprises using a puller/installer plate and/or a rounded end of a puller/installer tool to reinstall the plug into the drilling mud screen system. 
     In an embodiment, a piston-style drilling mud screen system comprises an optional first assembly having a first drilling mud inlet, an optional second assembly having a fourth drilling mud outlet, a first body, a second body, a lock system and, optionally, a skid. 
     In an embodiment, a piston-style drilling mud screen system comprises a first assembly having a first drilling mud inlet, a second assembly having a fourth drilling mud outlet, a first body, a second body, a lock system and, optionally, a skid. 
     In an embodiment, the first assembly has a first end and a second end, the first drilling mud inlet at the first end of the first assembly, and the first drilling mud outlet at the second end of the first assembly. 
     In an embodiment, the first body has a first end and a second end, a second drilling mud inlet at the first end of the first body, and a second drilling mud outlet at the second end of the first body. In an embodiment, the first drilling mud outlet of the first assembly is fluidly connected to the second drilling mud inlet of the first body. In an embodiment, the first drilling mud outlet of the first assembly is fluidly connected to the second drilling mud inlet of the first body via a quarter-turn breech lock connection. 
     In an embodiment, the first body has a first sleeve extending from the second end of the first body, and the second drilling mud outlet of the first body is fluidly connected to the third drilling mud inlet of the first body via the first sleeve. In an embodiment, the first sleeve is integral to the second end of the first body. In an embodiment, the first sleeve is fluidly connected to the second end of the first body. 
     In an embodiment, the first end of the first body has a means to engage a drilling mud screen puller/installer tool. 
     In an embodiment, the second body has a first end and a second end, a third drilling mud inlet at the first end of the second body, and a third drilling mud outlet at the second end of the second body. In an embodiment, the second drilling mud outlet of the first body is fluidly connected to the third drilling mud inlet of the second body. 
     In an embodiment, the second body has a second sleeve extending from the first end of the second body, and the second drilling mud outlet of the first body is fluidly connected to the third drilling mud inlet of the second body via the second sleeve. In an embodiment, the second sleeve is integral to the first end of the second body. In an embodiment, the second sleeve is fluidly connected to the first end of the second body. 
     In an embodiment, a drilling mud screen is disposed within the first body and the second body between the first drilling mud inlet and the second drilling mud outlet. 
     In an embodiment, the lock system comprises a third body, a fourth body, a first lock and a second lock. 
     In an embodiment, the third body having a first end and a second end, a first inlet at the first end of the third body, and a first outlet at the second end of the third body. In an embodiment, the second end the first body is disposed through the first end of the third body such that the second end of the first body is held by a lip at the first end of the third body. 
     In an embodiment, the third body of the lock system are capable of receiving a portion of the first body when the first lock is unlocked. 
     In an embodiment, the fourth body has a first end and a second end, a second inlet at the first end of the fourth body, and a second outlet at the second end of the fourth body. In an embodiment, the first outlet of the third body is connected to the second inlet of the fourth body. In an embodiment, the first outlet of the third body is connected to the second inlet of the fourth body via a threaded connection. 
     In an embodiment, the fourth body of the lock system is capable of receiving a portion of the second body when the second lock is unlocked. 
     In an embodiment, the first lock extends through the third body and engages the first body when the piston-style drilling mud screen system is closed. In an embodiment, the first lock is a spring-loaded lock. 
     In an embodiment, the first end of the second body is disposed through the second end of the fourth body such that the first end of the second body is held by a lip at or near the second end of the fourth body. 
     In an embodiment, the second lock extends through the fourth body and engages the second body when the piston-style drilling mud screen system is closed. In an embodiment, the second lock is a spring-loaded lock. 
     In an embodiment, the second assembly has a first end and a second end, a fourth drilling mud inlet at the first end of the second assembly, and a fourth drilling mud outlet at the second end of the second assembly. 
     In an embodiment, the third drilling mud outlet of the second body is fluidly connected to the fourth drilling mud inlet of the second assembly. 
     In an embodiment, the third drilling mud outlet of the second body is fluidly connected to the fourth drilling mud inlet of the second assembly via a quarter-turn breech lock connection. 
     In an embodiment, the skid comprises a base, a first support, a second support and a third support. 
     In an embodiment, the first support has a first end and a second end, wherein the first end of the first support is attached to the base and wherein the second end of the first support is attached to the first assembly. 
     In an embodiment, the second support has a first end and a second end, wherein the first end of the second support is attached to the base and wherein the second end of the second support is attached to the second assembly. 
     In an embodiment, the third support has a first end and a second end, wherein the first end of the third support is attached to the base and wherein the second end of the third support is attached to the lock system. 
     In an embodiment, one or more of the first support, the second support and the third support is capable of being lowered, pivoted, raised, rotated or any combination thereof. In an embodiment, one or more of the first support, the second support and the third support is capable of being lowered, pivoted, raised, rotated or any combination thereof via a connection, coupling and/or extension. In an embodiment, the one or more of the first support, the second support and the third support is capable of being automatically lowered, pivoted, raised and/or rotated. In an embodiment, the one or more of the first support, the second support and the third support is capable of being manually lowered, pivoted, raised and/or rotated. 
     In an embodiment, the piston-style drilling mud screen system further comprises a transducer subassembly. In an embodiment, the transducer subassembly comprises a body having a drilling mud inlet, a drilling mud outlet and a transducer access port, and a transducer. 
     In an embodiment, the body has a first end, a second end and a first centerline from the first end to the second end. 
     In an embodiment, the drilling mud inlet is at the first end of the body. 
     In an embodiment, the first drilling mud outlet is at the second end of the first body. 
     In an embodiment, the transducer access port has a second centerline forming a transducer angle with the first centerline and extending to the first centerline, wherein the transducer access port is offset from the first end of the body. In an embodiment, the transducer angle is from about 20-degrees to about 120-degrees. 
     In an embodiment, the transducer is disposed within the transducer access port to close and seal the transducer access port. 
     In an embodiment, the drilling mud outlet of the transducer assembly is fluidly connected to the first drilling mud inlet of the piston-style drilling mud screen system. In an embodiment, the drilling mud outlet of the transducer subassembly is fluidly connected to the first drilling mud inlet of the piston-style drilling mud screen system via a cross-over connection. In an embodiment, the drilling mud outlet of the transducer subassembly is fluidly connected to the first drilling mud inlet at the first end of the first assembly of the piston-style drilling mud screen system via a cross-over connection. 
     In an embodiment, the drilling mud outlet of the transducer assembly is fluidly connected to the first drilling mud inlet of the piston-style drilling mud screen system. In an embodiment, the drilling mud outlet of the transducer subassembly is fluidly connected to the first drilling mud inlet of the piston-style drilling mud screen system via a quarter-turn breech lock connection. In an embodiment, the drilling mud outlet of the transducer subassembly is fluidly connected to the first drilling mud inlet at the first end of the first assembly of the piston-style drilling mud screen system via a quarter-turn breech lock connection. 
     In an embodiment, one or more of the first assembly, the second assembly, the first body, the second body, the third body and the fourth body are constructed from AISI 4130/75k or equivalent material, AISI 4145 or equivalent, or combinations thereof. 
     In an embodiment, the drilling mud screen is constructed from AISI 4145 or equivalent, stainless steel or combinations thereof. In an embodiment, the drilling mud screen has a hardened coating. 
     In an embodiment, a piston-style drilling mud screen system, comprises: a first body having a first end and a second end, a first drilling mud inlet at the first end of the first body, a first drilling mud outlet at the second end of the first body, a first lock fluidly connected to the first end of the first body, and a second lock fluidly connected to the second end of the first body 
     In an embodiment, one or more of the first body, the first lock and the second lock is capable of being lowered, pivoted, raised, rotated or any combination thereof 
     In an embodiment, the first lock is retractably connected to the first end of the first body and/or the second lock is retractably connected to the second end of the first body. In an embodiment, the first lock is slideably connected to the first end of the first body and/or the second lock is slideably connected to the second end of the first body. In an embodiment, the first lock is threadably connected to the first end of the first body and/the second lock is threadably connected to the second end of the first body. 
     In an embodiment, a method of installing a piston-style drilling mud screen system comprises the steps of: a) providing the piston-style drilling mud screen system; b) stopping a drilling mud pump to fluidly connect the piston-style drilling mud screen to the drilling mud pump; c) fluidly connecting the piston-style drilling mud screen system in line with and immediately upstream or downstream of the drilling mud pump; and d) operating the drilling mud pump to produce flow of drilling mud through the piston-style drilling mud screen system. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the piston-style drilling mud screen system to a high-pressure outlet of the drilling mud pump and fluidly connecting a drilling mud outlet of the piston-style drilling mud screen system to a vibrator hose or a standpipe. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the piston-style drilling mud screen system to a high-pressure inlet of the drilling mud pump and fluidly connecting a drilling mud outlet of the piston-style drilling mud screen system to an inlet of a vibrator hose. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the piston-style drilling mud screen system to an outlet of a vibrator hose and a drilling mud outlet of the piston-style drilling mud screen system to an inlet of a standpipe. 
     In an embodiment, step c) comprises fluidly connecting a drilling mud inlet of the piston-style drilling mud screen system to an outlet of a first portion of a standpipe and a drilling mud outlet of the piston-style drilling mud screen system to an inlet of a second portion of the standpipe. 
     In an embodiment, the method further comprises step e) filtering or screening debris from drilling mud. 
     In an embodiment, a method of removing and replacing a drilling mud screen in a piston-style drilling mud screen system comprises the steps: a) providing a piston-style drilling mud screen system; b) stopping a drilling mud pump connected to the piston-style drilling mud screen system; c) opening the lock system in the piston-style drilling mud screen system to remove and replace a drilling mud screen; d) accessing the interior of the piston-style drilling mud screen system to pull the drilling mud screen from the piston-style drilling mud screen system and to install a replacement drilling mud screen into the piston-style drilling mud screen system; e) closing the lock system in the piston-style drilling mud screen system; and f) operating the drilling mud pump to produce flow of drilling mud through the piston-style drilling mud screen system. 
     In an embodiment, the method further comprises step (g) monitoring the transducer of the first transducer subassembly for property information immediately upstream of the piston-style drilling mud screen system and step (h) using the property information to determine a status of the piston-style drilling mud screen system. 
     In an embodiment, step c) comprises: (c-1) disengaging the first lock of the lock system from the first body and disengaging the second lock of the lock system from the second body of the piston-style drilling mud screen system; (c-2) rotating the first body to unlatch the first assembly and rotating the second body to unlatch the second assembly; and (c-3) sliding the first body further into the lock system to disengage the first assembly and sliding the second body into the lock system to disengage the second assembly 
     In an embodiment, step c) further comprises: (c-4) lifting, lowering, pivoting, rotating, sliding or otherwise moving one or more of the first assembly, the second assembly, the lock system and any combination thereof to open the piston-style drilling mud screen system to remove the drilling mud screen 
     In an embodiment, step d) further comprises using a puller/installer plate of a puller/installer tool to engage and pull the drilling mud screen from the drilling mud screen system. 
     In an embodiment, step d) further comprises using a puller/installer plate and/or a rounded end of a puller/installer tool to install the replacement drilling mud screen into the drilling mud screen system and, optionally, using a stop plate, groove or painted line of the puller/installer tool to determine when the replacement drilling mud screen is installed into the drilling mud screen system 
     In an embodiment, step e) comprises: (e-1) lifting, lowering, pivoting, rotating, sliding or otherwise moving one or more of the first assembly, the second assembly, the lock system and any combination thereof to close the piston-style drilling mud screen system; (e-2) rotating the first body to latch the first assembly and rotating the second body to latch the second assembly; and (e-3) engaging the first lock of the lock system from the first body and engaging the second lock of the lock system from the second body of the piston-style drilling mud screen system 
     In an embodiment, a method of installing a piston-style drilling mud screen system comprises the steps of: a) providing a piston-style drilling mud screen system; b) stopping a drilling mud pump; c) fluidly connecting a first transducer subassembly, having a transducer, in line with and downstream of the drilling mud pump and fluidly connecting the piston-style drilling mud screen system in line with and immediately downstream of the first transducer subassembly; and d) operating the drilling mud pump to produce flow of drilling mud through the first transducer subassembly and the piston-style drilling mud screen system 
     In an embodiment, step (c) comprises fluidly connecting a first transducer subassembly, having a transducer, in line with and downstream of the drilling mud pump and fluidly connecting the piston-style drilling mud screen system in line with and immediately downstream of the first transducer subassembly, and fluidly connecting a gate valve in line with and immediately downstream of the piston-style drilling mud screen system, fluidly connecting a second transducer assembly, having a low torque plug valve, in line with and immediately downstream of the gate valve. 
     In an embodiment, step (d) comprises operating the drilling mud pump to produce flow of drilling mud through the first transducer subassembly, the piston-style drilling mud screen system, the gate valve and the second transducer subassembly. 
     In an embodiment, the method further comprises step (e) stopping the drilling mud pump, step (f) closing the gate valve to isolate the piston-style drilling mud screen system, and step (g) pumping cement through the low torque plug valve of the second transducer subassembly, a vibrator hose, a stand pipe, a top drive and a case running tool (CRT). 
     These and other objects, features and advantages will become apparent as reference is made to the following detailed description, preferred embodiments, and examples, given for the purpose of disclosure, and taken in conjunction with the accompanying drawings and appended claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       For a further understanding of the nature and objects of the present invention, reference should be made to the following detailed disclosure, taken in conjunction with the accompanying drawings, in which like parts are given like reference numerals, and wherein: 
         FIG. 1  illustrates a photograph of an exemplary drilling mud screen system according to an embodiment of the present invention, showing the system installed at an outlet of a drilling mud pump upstream of a drilling rig standpipe assembly; 
         FIG. 2  illustrates a photograph of a single-piece body for the exemplary drilling mud screen system of  FIG. 1 , showing an unassembled view of a drilling mud inlet, a drilling mud outlet and a drilling mud screen access port; 
         FIG. 3A  illustrates a photograph of a single-piece body for the exemplary drilling mud screen system of  FIG. 2 , showing a detailed view of a drilling mud inlet and a drilling mud screen access port; 
         FIG. 3B  illustrates a photograph of a single-piece body for the exemplary drilling mud screen system of  FIG. 3A , showing a detailed view of the drilling mud screen access port; 
         FIG. 3C  illustrates a photograph of the single-piece body for the exemplary drilling mud screen system of  FIG. 3A , showing an end cap installed in the drilling mud screen access port; 
         FIG. 3D  illustrates a photograph of a single-piece body for the exemplary drilling mud screen system of  FIGS. 3A-3C , showing a detailed view of the drilling mud inlet; 
         FIG. 3E  illustrates a photograph of a single piece body of the exemplary drilling mud screen system of  FIGS. 3A-3C , showing a detailed view of the drilling mud outlet; 
         FIG. 4A  illustrates an upper, cross-sectional view of an exemplary drilling mud screen system according to an embodiment of the present invention, showing a drilling mud screen; 
         FIG. 4B  illustrates a detailed view of A-A of  FIG. 4A , showing an end cap installed; 
         FIG. 4C  illustrates a detailed view of A-A of  FIGS. 4A-4B , showing the end cap removed; 
         FIG. 5A  illustrates an upper, cross-sectional view of a drilling mud screen according to an embodiment of the present invention, showing a filter and an end cap; 
         FIG. 5B  illustrates a detailed view of A-A of  FIG. 5A , showing an inlet of a second portion of a body and an outlet of the first portion of the body; 
         FIG. 5C  illustrates a detailed view of B of  FIG. 5A , showing a detailed view of a groove for an O-ring; 
         FIG. 5D  illustrates a detailed view of C of  FIG. 5A , showing an enlarged detailed view of the groove for an O-ring; 
         FIG. 5E  illustrates an upper, right perspective view of the drilling mud screen of  FIG. 5A ; 
         FIG. 6A  illustrates a photograph of a mud screen system according to an embodiment of the present invention, showing a two-piece body for the system; 
         FIG. 6B  illustrates a photograph of the exemplary drilling mud screen system of  FIG. 6A , showing a drilling mud outlet; 
         FIG. 6C  illustrates a photograph of the exemplary drilling mud screen system of  FIGS. 6A-6B ; 
         FIG. 6D  illustrates a photograph of the exemplary drilling mud screen system of  FIGS. 6A-6C , showing a drilling mud inlet and a drilling mud screen access port; 
         FIG. 7A  illustrates an upper, cross-sectional view of a drilling mud screen system according to an embodiment of the present invention, showing a single-inlet drilling mud system; 
         FIG. 7B  illustrates an upper, cross-sectional view of a drilling mud screen system according to an embodiment of the present invention, showing a double-inlet drilling mud system; 
         FIG. 8A  illustrates an upper cross-sectional view of an exemplary drilling mud screen puller/installer tool for the exemplary drilling mud screen system of  FIGS. 4A-4C ; 
         FIG. 8B  illustrates a detailed view of A-A of  FIG. 8A , showing a means to engage a drilling mud screen according to an embodiment of the present invention; 
         FIG. 9A  illustrates an upper cross-sectional view of an exemplary drilling mud screen puller/installer tool for the exemplary drilling mud screen system of  FIG. 7A ; 
         FIG. 9B  illustrates a detailed view of A-A of  FIG. 9A , showing a means to engage a drilling mud screen according to an embodiment of the present invention; 
         FIG. 10  illustrates a flow diagram for a method of using a drilling mud screen system; 
         FIG. 11  illustrates a flow diagram for a method of using a drilling mud screen puller/installer; 
         FIG. 12A  illustrates a cross-sectional view of the exemplary drilling mud tool of  FIG. 8A  pulling the drilling mud screen of  FIG. 5  from the exemplary drilling mud screen system of  FIG. 4 ; 
         FIG. 12B  illustrates a cross-sectional view of the exemplary drilling mud tool of  FIG. 8A  installing the drilling mud screen of  FIG. 5  into the exemplary drilling mud screen system of  FIG. 4 ; 
         FIG. 13A  illustrates a cross-sectional view of the exemplary drilling mud tool of  FIG. 9A  pulling the drilling mud screen of  FIG. 5  from the exemplary drilling mud screen system of  FIG. 7A ; 
         FIG. 13B  illustrates a cross-sectional view of the exemplary drilling mud tool of  FIG. 9A  installing the drilling mud screen of  FIG. 5  into the exemplary drilling mud screen system of  FIG. 7A ; 
         FIG. 14  illustrates a cross-sectional view of the exemplary drilling mud screen of  FIG. 4 , showing an optional plug installed in the drilling mud screen system; 
         FIG. 15A  illustrates an upper, right perspective view of an optional plug with a backward “J” shaped flow surface according to an embodiment of the present invention; 
         FIG. 15B  illustrates a cross-sectional view of the optional plug with the backward “J” shaped flow surface of  FIG. 15A ; 
         FIG. 16A  illustrates an upper, right perspective view of an optional plug with a curved shaped flow surface according to an embodiment of the present invention; 
         FIG. 16B  illustrates a cross-sectional view of the optional plug with the curved shaped flow surface of  FIG. 16A ; 
         FIG. 17A  illustrates an upper, right side perspective view of an optional plug with an “L” shaped flow surface according to an embodiment of the present invention; 
         FIG. 17B  illustrates a cross-sectional view of an optional plug with an “L” shaped flow surface of  FIG. 17A ; 
         FIG. 18A  illustrates an upper cross-sectional view of the exemplary drilling mud tool of  FIG. 8A  for the exemplary drilling mud system of  FIGS. 4A-4C and 14 ; 
         FIG. 18B  illustrates another upper cross-sectional view of the exemplary drilling mud tool of  FIG. 8A  for the exemplary drilling mud system of  FIGS. 4A-4C and 14 ; 
         FIG. 19  illustrates a cross-sectional view of the drilling mud screen system in a monitoring configuration according to an embodiment of the present invention, showing an optional transducer subassembly; 
         FIG. 20A  illustrates an upper, right side perspective view of an optional transducer subassembly according to an embodiment of the present invention; 
         FIG. 20B  illustrates a side perspective view of the optional transducer subassembly of  FIG. 20A ; 
         FIG. 21A  illustrates an upper view of a mud screen system according to an embodiment of the present invention, showing an optional two-piece body for the system; 
         FIG. 21B  illustrates a detailed, cross-sectional view of A-A of  FIG. 21A , showing an entry angle of about 30 degrees; 
         FIG. 22A  illustrates an end view of an optional drilling mud screen according to an embodiment of the present invention; 
         FIG. 22B  illustrates a detailed, cross-sectional view of A-A of  FIG. 22A , showing an optional drilling mud screen insert, and optional first end retaining ring, an optional filter length, and an optional filter retaining ring; 
         FIG. 22C  illustrates a detailed view of B of  FIG. 22B ; 
         FIG. 22D  illustrates a detailed, cross-sectional view of C-C of  FIG. 22C ; 
         FIG. 22E  illustrates an upper, right perspective view of the drilling mud screen of  FIGS. 22A-22B ; 
         FIG. 23  illustrates a cross-sectional view of a mud screen system according to an embodiment of the present invention, showing an optional drilling mud screen insert inserted into a drilling mud screen; 
         FIG. 24A  illustrates an end view of an optional drilling mud screen insert according to an embodiment of the present invention; 
         FIG. 24B  illustrates a detailed, cross-sectional view of A-A of  FIG. 24A , showing an inlet of the drilling mud screen insert and an outlet of the drilling mud screen insert; 
         FIG. 24C  illustrates an upper, right perspective view of the optional drilling mud screen insert of  FIGS. 24A-24B ; 
         FIG. 25  illustrates a detailed, cross-sectional view of the optional drilling mud screen, showing an optional first end retaining ring; 
         FIG. 26A  illustrates a side view of an optional drilling mud screen according to an embodiment of the present invention, showing an optional filter length, and an optional filter retaining ring; 
         FIG. 26B  illustrates a detailed, cross-sectional view of the optional drilling mud screen of  FIG. 26A , showing an optional drilling mud screen insert, an optional filter length, and an optional filter retaining ring; 
         FIG. 27A  illustrates an end view of an optional filter retaining ring according to an embodiment of the present invention; 
         FIG. 27B  illustrates a detailed, cross-sectional view of A-A of  FIG. 27A ; 
         FIG. 27C  illustrates a detailed, cross-sectional view of B of  FIG. 27B ; 
         FIG. 28  illustrates a cross-sectional view of a drilling mud screen system in a cementing configuration according to an embodiment of the present invention, showing an optional first transducer subassembly having an optional transducer, a drilling mud screen system, an optional gate valve and an optional second transducer subassembly having an optional low torque plug valve; 
         FIG. 29  illustrates a cross-sectional view of the exemplary drilling mud tool of  FIG. 9A  inserting the drilling mud screen of  FIG. 5 or 22  into the exemplary drilling mud screen system of  FIG. 7A or 21B , showing an optional stop plate; 
         FIG. 30A  illustrates a cross-sectional view of an exemplary piston-style drilling mud screen system according to an embodiment of the present invention, showing the piston-style mud screen system mounted on a skid; 
         FIG. 30B  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system of  FIG. 30A , showing the piston-style drilling mud screen system in a closed position; 
         FIG. 30C  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system of  FIGS. 30A-30B , showing the piston-style drilling mud screen system an unlatched position; 
         FIG. 30D  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system of  FIGS. 30A and 30C , showing the piston-style drilling mud screen system an unlatched and rotated position for removal of a drilling mud screen; 
         FIG. 30E  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system of  FIGS. 30A and 30D , showing the piston-style drilling mud screen system an unlatched and rotated position after removal of the drilling mud screen; 
         FIG. 30F  illustrates a detailed view of an exemplary positive lock mechanism for the exemplary piston-style drilling mud screen system of  FIGS. 30A-30E , showing a spring-loaded lock mechanism; 
         FIG. 30G  illustrates a detailed view of an exemplary breech lock connection for the exemplary piston-style drilling mud screen system of  FIGS. 30A-30F , showing a quarter-turn breech lock connection; 
         FIG. 31  illustrates a detailed view of an optional end subassembly for a piston-style drilling mud screen system according to an embodiment of the present invention, providing a cross-over connection from a first subassembly and/or a second subassembly to an optional transducer subassembly; 
         FIG. 32  illustrates a flow diagram for a method of installing and removing a drilling mud screen from the exemplary piston-style drilling mud screen system of  FIGS. 30A-30G ; 
         FIG. 33A  illustrates a cross-sectional view of an exemplary piston-style drilling mud screen system according to an embodiment of the present invention, showing the piston-style mud screen system connected to a transducer subassembly; 
         FIG. 33B  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system connected to the transducer subassembly of  FIG. 33A , showing the piston-style drilling mud screen system in a closed position; 
         FIG. 33C  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system connected to the transducer subassembly of  FIGS. 33A-33B , showing the piston-style drilling mud screen system an unlatched position; 
         FIG. 33D  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system connected to the transducer subassembly of  FIGS. 33A and 33C , showing the piston-style drilling mud screen system an unlatched and rotated position for removal of a drilling mud screen; 
         FIG. 34  illustrates a cross-sectional view of a transducer subassembly connected to a piston-style drilling mud screen system according to an embodiment of the present invention; 
         FIG. 35A  illustrates a cross-sectional view of an exemplary piston-style drilling mud screen system according to an embodiment of the present invention, showing the piston-style mud screen system integral with a transducer subassembly; 
         FIG. 35B  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system integral with the transducer subassembly of  FIG. 35A , showing the piston-style drilling mud screen system in a closed position; 
         FIG. 35C  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system integral with the transducer subassembly of  FIGS. 35A-35B , showing the piston-style drilling mud screen system an unlatched position; 
         FIG. 35D  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system integral with the transducer subassembly of  FIGS. 35A and 35C , showing the piston-style drilling mud screen system an unlatched and rotated position for removal of a drilling mud screen; 
         FIG. 36  illustrates a cross-sectional view of a transducer subassembly integral with a piston-style drilling mud screen system according to an embodiment of the present invention; and 
         FIG. 37  illustrates a right perspective view of a transducer subassembly according to an embodiment of the present invention, showing a quarter-turn breech lock connection. 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION 
     The following detailed description of various embodiments of the present invention references the accompanying drawings, which illustrate specific embodiments in which the invention can be practiced. While the illustrative embodiments of the invention have been described with particularity, it will be understood that various other modifications will be apparent to and can be readily made by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is not intended that the scope of the claims appended hereto be limited to the examples and descriptions set forth herein but rather that the claims be construed as encompassing all the features of patentable novelty which reside in the present invention, including all features which would be treated as equivalents thereof by those skilled in the art to which the invention pertains. Therefore, the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. 
     Exemplary Drilling Mud Screen System 
       FIG. 1  illustrates a photograph of an exemplary drilling mud screen system according to an embodiment of the present invention, showing the system installed at an outlet of a drilling mud pump upstream of a drilling rig standpipe assembly. As shown in  FIG. 1 , the drilling mud screen system  100  has a body  105  having a first end  110  and a second end  115 , a drilling mud inlet  120  and a drilling mud outlet  125 , and a drilling mud screen access port  130 . In an embodiment, the drilling mud screen access port  130  may be closed with an end cap  135 . 
     In an embodiment, a drilling mud inlet  120  of the drilling mud screen system  100  may be fluidly connected to a high-pressure outlet of a drilling mud pump via a connection. In an embodiment, a drilling mud outlet  125  of the drilling mud screen system  100  may be fluidly connected to an inlet of a vibrator hose to a standpipe via a connection. 
     Alternatively, the drilling mud screen system  100  may be installed between an outlet of the vibrator hose and an inlet of the standpipe, or at any point in the standpipe via a connection. 
     In an embodiment, the drilling mud inlet  120  may be fluidly connected to, for example, an outlet to a drilling mud pump via a connection; and the drilling mud outlet  125  may be fluidly connected to, for example, an inlet to a vibrator hose via a connection. Any suitable connection may be used for the drilling mud inlet and the drilling mud outlet. For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  120  may be fluidly connected to, for example, an outlet to a drilling mud pump via a weld; and the drilling mud outlet  125  may be fluidly connected to, for example, an inlet to a vibrator hose via a weld. 
     Single-Piece Body 
       FIG. 2  illustrates a photograph of a single-piece body for the exemplary drilling mud screen system of  FIG. 1 , showing an unassembled view of a drilling mud inlet  220 , a drilling mud outlet  225 , and a drilling mud screen access port  230 . As shown in  FIG. 2 , the drilling mud screen system  200  has a body  205  having a first end  210  and a second end  215 , an inlet  220  and an outlet  225 , and a mud screen access port  230 . 
     In an embodiment, the drilling mud inlet  220  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  225  may be fluidly connected to, for example, an inlet of a vibrator hose via a connection. Any suitable connection may be used for the drilling mud inlet  220  and the drilling mud outlet  225 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  220  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the drilling mud outlet  225  may be fluidly connected to, for example, an inlet of a vibrator hose via a weld. 
       FIG. 3A  illustrates a photograph of a single-piece body for the exemplary drilling mud screen system of  FIG. 2 , showing a detailed view of a drilling mud inlet  320  and a drilling mud screen access port  330 . As shown in  FIG. 3A , the drilling mud screen system  300  has a body  305  having a first end  310 , an inlet  320 , a drilling mud screen access port  330 , and an end cap  335 . 
       FIG. 3B  illustrates a photograph of the single-piece body of  FIG. 3A , showing a detailed view of the drilling mud screen access port  330 . As shown in  FIG. 3B , the drilling mud screen system  300  has a body  305  having a first end  310 , an inlet  320 , and a drilling mud screen access port  330 . 
       FIG. 3C  illustrates a photograph of the single-piece body of  FIG. 3A , showing an end cap  335  installed in a drilling mud screen access port  330 . As shown in  FIG. 3C , the drilling mud screen access port  330  of the drilling mud screen system  300  may be closed with an end cap  335  via a fitting. Any suitable fitting may be used. For example, suitable fittings include, but are not limited to, pipe fittings. Fittings are well known in the art. 
     In an embodiment, the drilling mud screen access port  330  of the drilling mud screen system  300  may be sealed with an end cap  335  via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the end cap  335  of the drilling mud screen system  300  may comprise a cap, an O-ring and a pipe collar. In an embodiment, the end cap  335  may be a five-inch 1002 WECO cap with an O-ring. 
       FIG. 3D  illustrates a photograph of a single-piece body of the exemplary drilling mud screen system of  FIGS. 3A-3C , showing a detailed view of the drilling mud inlet  320 ; and  FIG. 3E  illustrates a photograph of a single-piece body of the exemplary drilling mud screen system of  FIGS. 3A-3C , showing a detailed view of the drilling mud outlet  325 . 
     In an embodiment, the drilling mud inlet  320  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  325  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the drilling mud inlet  320  and the drilling mud outlet  325 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  320  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the drilling mud outlet  325  may be fluidly connected to an inlet of a vibrator hose via a weld. 
       FIG. 4A  illustrates an upper, cross-sectional view of an exemplary drilling mud screen system according to an embodiment of the present invention, showing a drilling mud screen. As shown in  FIG. 4A , the drilling mud screen system  400  has a body  405  having a first end  410  and a second end  415 , a drilling mud inlet  420  and a drilling mud outlet  425 , a drilling mud screen access port  430 , an end cap  435  and a drilling mud screen  440 . 
     Any suitable connection may be used for the drilling mud inlet  420  and the drilling mud outlet  425 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. 
     In an embodiment, the body  405  of the drilling mud screen system  400  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the body  405  may be constructed of an American Iron and Steel Industry (AISI) 4130/75k yield or equivalent material. See e.g.,  FIG. 2 . In an embodiment, the inner surface of the body  405  may be unpainted. See e.g.,  FIGS. 1 &amp; 3A-3E . In an embodiment, the outer surface of the body  405  may be painted. Id. 
     In an embodiment, the body  405  has a first centerline  445  and a length  450 . In an embodiment, the first centerline  445  extends through the center of the drilling mud screen access port  430  to the drilling mud outlet  425 . The length  450  of the body  405  may be any suitable length. In an embodiment, the length  450  of the body  405  may be from about 30-inches to about 50-inches, and any range or value there between. In an embodiment, the length  450  may be about 40-inches. 
     In an embodiment, the body  405  has a second centerline  455 . In an embodiment, the second centerline  455  extends through the center of the drilling mud inlet  420  to the first centerline  445 . 
     In an embodiment, the first centerline  445  and the second centerline  455  form a first angle  460 . In an embodiment, the first angle  460  may be from about 30-degrees to about 120-degrees, and any range or value there between. In an embodiment, the first angle  460  may be about 45-degrees. In an embodiment, the first angle  460  may be about 90-degrees. 
     In an embodiment, the first drilling mud inlet  420  may be offset from a first end  410  of the body  405 . The first drilling mud inlet  420  may be offset from a first end  410  of the body  405  at any suitable distance. In an embodiment, the second centerline  455  may be offset from the first end  410  of the body  405  from about 9-inches to about 13-inches, and any range or value there between. In an embodiment, the second centerline  455  may be offset from the first end  410  of the body  405  about 11-inches. 
     In an embodiment, the drilling mud inlet  420  may have any suitable inner diameter  465 ; and the drilling mud inlet  420  may have any suitable outer diameter  470 . In an embodiment, the inner diameter  465  of the drilling mud inlet  420  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  465  of the drilling mud inlet  420  may be about 4-inches. 
     In an embodiment, the outer diameter  470  of the drilling mud inlet  420  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the outer diameter  470  of the drilling mud inlet  420  may be about 5.5-inches. 
     In an embodiment, the body  405  has a first portion  475  and a second portion  480 . In an embodiment, the first portion  475  of the body  405  may have a first inner diameter  485  and an outer diameter  495 ; and the second portion  480  of the body  405  may have a second inner diameter  490  and an outer diameter  495 . 
     In an embodiment, the first inner diameter  485  of the body  405  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  485  of the body  405  may be about 4-inches. 
     In an embodiment, the second inner diameter  490  of the body  405  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  490  of the body  405  may be about 4-inches. 
     In an embodiment, a second portion  480  of the body  405  may have a second inner diameter  490  to provide a high flow rate of drilling mud through the drilling mud screen  440 . In an embodiment, the second inner diameter  490  of the body  405  may be from about 3.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the second inner diameter  490  of the body  405  may be from about 4.5-inches to about 5.5-inches, and any range or value there between. 
     In an embodiment, the outer diameter  495  of the first portion  475  and/or the second portion  480  of the body  405  may be from about 5.5-inches to about 7.5-inches, and any range or value there between. In an embodiment, the outer diameter  495  of the first portion  475  and/or the second portion  480  of the body  405  may be about 6.5-inches. 
     In an embodiment, the drilling mud outlet  425  may have any suitable inner diameter  465 ; and the drilling mud outlet  425  may have any suitable outer diameter  470 . In an embodiment, the inner diameter  465  of the drilling mud outlet  425  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  465  of the drilling mud outlet  425  may be about 4-inches. 
     In an embodiment, the outer diameter  470  of the drilling mud outlet  425  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the outer diameter  470  of the drilling mud outlet  425  may be about 5.5-inches. 
       FIG. 4B  illustrates a detailed view of A-A of  FIG. 4A , showing an end cap  435  installed; and  FIG. 4C  illustrates a detailed view of A-A of  FIGS. 4A-4B , showing the end cap  435  removed. 
     Drilling Mud Screen 
     The drilling mud screen  500  may be any suitable filter or screen capable of filtering or screening debris from drilling muds. For example, suitable drilling mud screens include, but are not limited to, drill screens and rod screens. 
       FIG. 5A  illustrates an upper, cross-sectional view of a drilling mud screen according to an embodiment of the present invention, showing a filter  530  and an end cap  535 . As shown in  FIG. 5A , the drilling mud screen  500  has a body  505  having a first end  510  and a second end  515 , a drilling mud inlet  520 , a drilling mud outlet  525 , a filter  530  and an end cap  535 . 
     In an embodiment, the drilling mud inlet  520  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  525  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the drilling mud inlet  520  and the drilling mud outlet  525 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  520  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the drilling mud outlet  525  may be fluidly connected to an inlet of a vibrator hose via a weld. 
     In an embodiment, the body  505  of the drilling mud screen  500  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the body  505  may be constructed of an AISI 4145 or equivalent material. See e.g.,  FIGS. 5A-5E . In an embodiment, the body  505  may be constructed of tool steel or equivalent material. 
     In an embodiment, the body  505  of the drilling mud screen  500  may have a hardened coating to reduce washing (i.e., erosion) of the screen  500 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the body  505  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the body  505  of the drilling mud screen  500  has a centerline  545  and a length  550 . In an embodiment, the centerline  545  extends through the center of the drilling mud screen inlet  520  to the end cap  535 . The length  550  of the body  505  may be any suitable length. In an embodiment, the length  550  of the body  505  may be from about 20-inches to about 30-inches, and any range or value there between. In an embodiment, the length  550  may be about 25-inches. 
     In an embodiment, the drilling mud inlet  520  of the drilling mud screen  500  may have any suitable inner diameter  565 ; and the drilling mud inlet  520  may have any suitable outer diameter  570 . In an embodiment, the inner diameter  565  of the drilling mud inlet  520  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  565  of the drilling mud inlet  520  may be about 3.9-inches. 
     In an embodiment, the outer diameter  570  of the drilling mud inlet  520  may be from about 4-inches to about 6-inches, and any range or value there between. In an embodiment, the outer diameter  570  of the drilling mud inlet  520  may be about 4-inches. 
     In an embodiment, the body  505  of the drilling mud screen  500  has a first portion  575  and a second portion  580 . In an embodiment, the first portion  575  of the body  505  has a first length; and the second portion  580  of the body  505  has a second length. The first portion  575  and the second portion  580  may be any suitable length. In an embodiment, the first portion  575  may have a first length from about 6-inches to about 10-inches; and the second portion  580  may have a second length from about 14-inches to about 20-inches, and any range or value there between. In an embodiment, the first portion  575  may have a first length of about 7.5-inches; and the second portion  580  may have a second length of about 17.5-inches. 
     In an embodiment, a second portion  580  of the body  505  of the drilling mud screen  500  may have a filter  530 . In an embodiment, the filter  530  may comprise a plurality of rods spaced a distance apart to form a filter. In an embodiment, the distance may be less than a particle size (e.g., diameter) desired to be filtered from the drilling mud. Particle filtration is well known in the art. 
     In an embodiment, the filter  530  may comprise a formed sheet having drilled holes spaced a distance apart to form a filter. In an embodiment, the size of the holes (e.g., diameter) may be less than a particle size (e.g., diameter) desired to be filtered. Particle filtration is well known in the art. 
     In an embodiment, a second portion  580  of the body  505  of the drilling mud screen  500  may have a drilling mud outlet  525 . In an embodiment, the drilling mud outlet  525  may comprise a plurality of spaces (i.e., flow passages) between a plurality of rods. In an embodiment, the drilling mud outlet  525  may comprise a plurality of holes (i.e., flow passages) drilled in a formed sheet. 
     In an embodiment, a first end  510  of a first portion  575  of the body  505  of the drilling mud screen  500  may have a first inner diameter  585 ; and a second end  515  of a second portion  580  of the body  505  may have a second inner diameter  590 . 
     In an embodiment, the first end  510  of the first portion  575  may be shaped to accept a puller/installer plate  975  of a drilling mud screen puller/installer tool  800 ,  900 , as discussed below. See e.g.,  FIGS. 5A, 8A &amp; 9A . 
     In an embodiment, the body  505  and/or a filter  530  of the drilling mud screen  500  may have a tapered drilling mud flow path from a larger inner diameter to a smaller inner diameter to reduce washing (i.e., erosion) of the screen  500 . 
     In an embodiment, the first inner diameter  585  of the first end  510  of the body  505  of the drilling mud screen  500  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  585  of the first end  510  of the body  505  may be about 3.9-inches. 
       FIG. 5B  illustrates a detailed view of A-A of  FIG. 5A , showing an outlet of a first portion  575  of the body  505  and an inlet of the second portion  580  of the body  505 . In an embodiment, an inner diameter of an outlet of the first portion  575  and an inlet of the second portion  590  of the body  505  may be from about 2-inches to about 3-inches, and any range or value there between. In an embodiment, the inner diameter of the outlet of the first portion  575  of the body  505  and the inlet of the second portion  590  of the body  505  may be about 2.5-inches. 
     In an embodiment, the outlet of the first portion  575  and/or the inlet of the second portion  590  of the body  505  may be shaped to accept a rounded end  875 ,  975  of a drilling mud screen puller/installer tool  800 ,  900 . See e.g.,  FIGS. 5B, 8B &amp; 9B . See also  FIGS. 12B &amp; 13B . In an embodiment, the inlet of the second portion  590  of the body  505  may have an inner shoulder to provide a pushing surface for the rounded end  875 ,  975  of the drilling mud screen puller/installer tool  800 ,  900 . Id. 
     In an embodiment, the outlet of the first portion  575  and/or the inlet of the second portion  580  of the body  505  may have a means to engage  540  a drilling mud screen puller/installer tool  800 ,  900 , as discussed below. See e.g.,  FIGS. 5A, 8A &amp; 9A . The means to engage  540  may be any suitable means to accept, and provide a pulling surface for, the drilling mud screen puller/installer tool  800 ,  900 . For example, a suitable means to engage  540  includes, but is not limited to, a “key” opening to rotationally engage an inner shoulder. In an embodiment, the outlet of the first portion  575  and/or the inlet of the second portion  590  of the body  505  may be shaped to accept a puller/installer plate  870 ,  970  of a drilling mud screen puller/installer tool  800 ,  900 . See e.g.,  FIGS. 5B, 8B &amp; 9B . See also  FIGS. 12A, 13A &amp; 29 . In an embodiment, the inlet of the second portion  590  of the body  505  may have an inner shoulder to provide a pulling surface for the puller/installer plate  870 ,  970  of the drilling mud screen puller/installer tool  800 ,  900 . Id. 
     In an embodiment, the second inner diameter  590  of the second end  515  of the body  505  of the drilling mud screen  500  may be from about 2-inches to about 3-inches, and any range or value there between. In an embodiment, the second inner diameter  590  of the second end  515  of the body  505  may be about 2.3-inches. 
     In an embodiment, the outer surface  595  of the first portion  575  of the body  505  of the drilling mud screen  500  may be adapted to engage one or more shoulders in an inner surface of the body  505 . In an embodiment, a first shoulder and a second shoulder of the body  505  may be offset from a first end  510  of the body  505 . Cf.  FIGS. 4A &amp; 5A . The first and second shoulders may be offset from the first end  510  of the body  505  at any suitable distance. In an embodiment, the first shoulder may be offset from the first end  510  of the body  505  from about 4-inches to about 8-inches; and the second shoulder may be offset from the first end  510  of the body  505  from about 5-inches to about 9-inches, and any range or value there between. In an embodiment, the first shoulder may be offset from the first end  510  of the body  505  about 4.8-inches; and the second shoulder may be offset from the first end  510  of the body  505  about 6.8-inches. 
     In an embodiment, the outer surface  595  of the body  505  of the drilling mud screen  500  may be sealed against an inner surface of the body  505  via an O-ring. Cf.  FIGS. 4A &amp; 5A . Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
       FIG. 5C  illustrates a detailed view of B of  FIG. 5A ; and  FIG. 5D  illustrates a detailed view of C of  FIG. 5A , both showing detailed views of a groove for an O-ring. In an embodiment, a groove for an O-ring may be offset from a first end  510  of the body  505  of the drilling mud screen  500 . The groove for the O-ring may be offset from the first end  510  of the body  505  at any suitable distance. In an embodiment, the groove for the O-ring may be offset from the first end  510  of the body  505  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the groove for the O-ring may be offset from the first end  510  of the body  505  about 5.7-inches. 
     In an embodiment, the filter  530  may have a plurality of rods spaced a distance apart to form a filter, or, alternatively, a formed sheet having drilled holes spaced a distance apart to form a filter. In an embodiment, the plurality of rods may be tapered from a larger outer diameter to a smaller outer diameter to encourage drilling mud flow to exit in straight lines through the drilling mud outlet  525  (i.e., through flow passages between the plurality rods) to reduce washing (i.e., erosion) of the screen  500 . In an embodiment, the filter  530  may have a plurality of straight rows of holes drilled in a formed sheet to encourage drilling mud flow to exit in straight rows of strings through the drilling mud outlet  525  (i.e., through straight flow passages of the drilled holes) to reduce washing (i.e., erosion) of the screen  500 . 
     In an embodiment, a first end of a filter  530  may be connected to a second end  515  of the body  505  via a connection; and a second end of a filter  530  may be connected to a first end of the end cap  535  via a connection. Any suitable connection may be used for the drilling mud inlet  530 . For example, suitable connections include, but are not limited to, welds. Connections are well known in the art. In an embodiment, the first end of the filter  530  may be connected to the second end  515  of the body  505  via a weld; and the second end of the filter  530  may be connected to the first end of the end cap  535  via a weld. 
     In an embodiment, the first end of the filter  530  may fit into a first recess in the second end  515  of the body  505 ; and the second end of the filter may fit into a second recess in the first end of the end cap  535 . In an embodiment, the first recess and the second recess may be a plurality of recessed holes or a recessed groove. In an embodiment, the first recess and the second recess may be a plurality of recessed holes. 
     In an embodiment, the filter  530  may be held together with a retaining ring. In an embodiment, the retaining ring may have a plurality of holes to hold the plurality of rods to form the filter  530 . In an embodiment, the plurality of rods may be connected to the plurality of holes in the retainer ring via a connection. Any suitable connection may be used for the drilling mud inlet  530 . For example, suitable connections include, but are not limited to, welds. Connections are well known in the art. In an embodiment, the plurality of rods may be connected to the plurality of holes in the retainer ring via a weld. 
     In an embodiment, the filter  530 , including any retaining rings, of the drilling mud screen  500  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the filter  530  may be constructed of 304 stainless steel material. See e.g.,  FIGS. 5A &amp; 5E . In an embodiment, the filter  530  may have a hardened coating to reduce washing (i.e., erosion) of the screen  500 . 
     In an embodiment, the end cap  535  of the drilling mud screen  500  has an inner surface  555 . In an embodiment, the inner surface  555  of the end cap  535  of the drilling mud screen  500  may redirect the flow to reduce washing (i.e., erosion) of the screen  500 . In an embodiment, the inner surface  555  of the end cap  535  of the drilling mud screen  500  forms an inverted cone relative to the second end  515  of the body  505  of the drilling mud screen  500  to redirect the flow. In an embodiment, the tip of the inverted cone may have a rounded or squared shape. 
     In an embodiment, the body  505  of the drilling mud screen  500  has a centerline  545  and a length  550 . In an embodiment, the centerline  545  extends through the center of the drilling mud screen inlet  520  to the end cap  535 . In an embodiment, the centerline  545  of the body  505  of the drilling mud screen  500  and the inner surface  555  of the end cap  535  form an angle  560 . In an embodiment, the angle  560  may be from about 30-degrees to about 60-degrees, and any range or value there between. In an embodiment, the first angle  560  may be from about 35-degrees to about 45-degrees, and any range or value there between. 
     In an embodiment, the end cap  535  of the drilling mud screen  500  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the end cap  535  may be constructed of 304 stainless steel material. See e.g.,  FIGS. 5A &amp; 5E . In an embodiment, the end cap  535  of the drilling mud screen  500  may have a hardened coating to reduce washing (i.e., erosion) of the screen  500 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the end cap  535  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
       FIG. 5E  illustrates an upper, right side perspective view of the drilling mud screen of  FIG. 5A . As shown in  FIG. 5E , the drilling mud screen  500  has a body  505  having a first end  510  and a second end  515 , a drilling mud inlet  520 , a drilling mud outlet  525 , a filter  530  and an end cap  535 . In an embodiment, the body  505  of the drilling mud screen  500  has a first portion  575  and a second portion  580 . 
     Optional Plug for Single-Piece Body 
     As discussed above, the single-piece body  405  for the exemplary drilling mud screen system of  FIGS. 1-4  has a drilling mud flow passage from the drilling mud inlet  420  (through the drilling mud inlet  520  of the drilling mud screen  440 , through the drilling mud outlet  525  of the drilling mud screen  440 ) and to the drilling mud outlet  425 . See e.g.,  FIGS. 4A &amp; 5 . 
     The single-piece body  405 , however, also has a drilling mud flow passage into a void between the drilling mud inlet  420  the mud screen access port  430 . Id. 
       FIG. 14  illustrates a cross-sectional view of the exemplary drilling mud screen of  FIG. 4 , showing an optional plug installed in the drilling mud screen system. As shown in  FIGS. 4 and 14 , the drilling mud screen system  400 ,  1400  has a body  405 ,  1405  having a first end  410 ,  1410  and a second end  415 ,  1415 , a drilling mud inlet  420 ,  1420  and a drilling mud outlet  425 ,  1425 , a drilling mud screen access port  430 ,  1430 , an end cap  435 ,  1435 , a drilling mud screen  440 ,  1440  and a plug  14100 . In an embodiment, the optional plug  14100  has a flow surface  14105 . 
     In an embodiment, the optional plug  14100  fills the void between the drilling mud inlet  420 ,  1420  and the mud screen access port  430 ,  1430 ; and the flow surface  14105  of the optional plug  14000  directs the drilling mud from the drilling mud inlet  420 ,  1420  of the drilling mud screen system  400 ,  1400  to the drilling mud inlet  520  of the drilling mud screen  440 ,  1440 , resulting in increased flow efficiency and decreased erosion. 
     In an embodiment, the plug  14100  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the plug  14100  may be constructed of an American Iron and Steel Industry (AISI) 4130/75k yield or equivalent material. 
     In an embodiment, the plug  14100  may have any suitable outer diameter to fit within the body  405 ,  1405 . In an embodiment, the outer diameter of the plug  14100  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the outer diameter of the plug  14100  may be about 3.9-inches. 
     In an embodiment, the optional plug  14100  has a flow surface  14105  to direct the drilling mud from the drilling mud inlet  420 ,  1420  of the drilling mud screen system  400 ,  1400  to the drilling mud inlet  520  of the drilling mud screen  440 ,  1440 . See e.g.,  FIGS. 4A &amp; 5 . In an embodiment, the flow surface  14105  may have any suitable shape to direct the drilling mud from the drilling mud inlet of the drilling mud screen system to the drilling mud inlet of the drilling mud screen. Suitable shapes include, but are not limited to, a backward “J” shape, a curved shape, an “L” shape and any combination or variation thereof, as discussed further below. 
       FIG. 15A  illustrates an upper, right perspective view of an optional plug with a backward “J” shaped flow surface according to an embodiment of the present invention; and  FIG. 15B  illustrates a cross-sectional view of the optional plug with the backward “J” shaped flow surface of  FIG. 15A . As shown in  FIGS. 15A and 15B , the optional plug  1500  has a body  1505  having a first end  1510  and a second end  1515 , a flow surface  1520 , an optional cavity  1530  and an optional port  1560 . 
     In an embodiment, the first end  1510  of the body  1505  may have a means to engage  1525  a drilling mud screen puller/installer tool  800 . See e.g.,  FIGS. 8A, 15A-15B &amp; 18A-18B . The means to engage  1525  may be any suitable means to accept, and provide a pulling surface for, the drilling mud screen puller/installer tool  800 . For example, a suitable means to engage  1525  includes, but is not limited to, a “key” opening to rotationally engage an inner shoulder. 
     In an embodiment, the first end  1510  of the plug  1500  may have an optional cavity  1530  extending towards, but not through, the flow surface  1520  of the plug  1500 . 
     In an embodiment, the first end  1510  of the plug  1500  may have an optional port  1560  extending from an outer surface of the plug  1500  into the optional cavity  1530 . 
     In an embodiment, the first end  1510  of the plug  1500  may have any suitable inner diameter  1535  of the optional cavity  1530 . In an embodiment, the inner diameter  1535  of the optional cavity  1530  may be from about 1-inch to about 3-inches, and any range or value there between. In an embodiment, the inner diameter  1535  of the optional cavity  1530  may be about 2-inches. 
     In an embodiment, the plug  1500  may have any suitable outer diameter  1540 . In an embodiment, the outer diameter  1540  of the plug  1500  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the outer diameter  1540  of the plug  1500  may be about 3.9-inches. 
     In an embodiment, the body  1505  has a centerline  1545 , a first length  1550  and a second length  1555 . In an embodiment, the first length  1550  of the body  1505  may be any suitable length. In an embodiment, the first length  1550  of the body  1505  may be from about 6-inches to about 10-inches, and any range or value there between. In an embodiment, the length  1550  may be about 8-inches. 
     In an embodiment, the second length  1555  of the body  1505  may be any suitable length. In an embodiment, the second length  1555  may be from about 8-inches to about 14-inches, and any range or value there between. In an embodiment, the second length  1555  may be about 11.5-inches. 
     In an embodiment, the second end  1515  of the plug  1500  may have a flow surface  1520 . In an embodiment, the flow surface  1520  may have any suitable shape to direct the drilling mud from the drilling mud inlet of the drilling mud screen system to the drilling mud inlet of the drilling mud screen. Suitable shapes include, but are not limited to, a backward “J” shape, a curved shape, an “L” shape and any combination or variation thereof, as discussed further below. In an embodiment, the flow surface  1520  may have a backward “J” shape. See e.g.,  FIG. 15B . 
       FIG. 16A  illustrates an upper, right perspective view of an optional plug with a curved flow surface according to an embodiment of the present invention; and  FIG. 16B  illustrates a cross-sectional view of the optional plug with the curved flow surface of  FIG. 16A . As shown in in  FIGS. 16A and 16B , the optional plug  1600  has a body  1605  having a first end  1610  and a second end  1615 , a flow surface  1620 , an optional cavity  1630  and an optional port  1660 . 
     In an embodiment, the first end  1610  of the body  1605  may have a means to engage  1625  a drilling mud screen puller/installer tool  800 . See e.g.,  FIGS. 8A, 16A-16B, 18A-18B &amp; 29 . The means to engage  1625  may be any suitable means to accept, and provide a pulling surface for, the drilling mud screen puller/installer tool  800 . For example, a suitable means to engage  1625  includes, but is not limited to, a “key” opening to rotationally engage an inner shoulder. 
     In an embodiment, the first end  1610  of the plug  1600  may have an optional cavity  1630  extending towards, but not through, the flow surface  1620  of the plug  1600 . 
     In an embodiment, the first end  1610  of the plug  1600  may have an optional port  1660  extending from an outer surface of the plug  1600  into the optional cavity  1630 . 
     In an embodiment, the first end  1610  of the plug  1600  may have any suitable inner diameter  1635  of the optional cavity  1630 . In an embodiment, the inner diameter  1635  of the optional cavity  1630  may be from about 1-inch to about 3-inches, and any range or value there between. In an embodiment, the inner diameter  1635  of the optional cavity  1630  may be about 2-inches. 
     In an embodiment, the plug  1600  may have any suitable outer diameter  1640 . In an embodiment, the outer diameter  1640  of the plug  1600  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the outer diameter  1640  of the plug  1600  may be about 3.9-inches. 
     In an embodiment, the body  1605  has a centerline  1645 , a first length  1650  and a second length  1655 . In an embodiment, the first length  1650  of the body  1605  may be any suitable length. In an embodiment, the first length  1650  of the body  1605  may be from about 6-inches to about 10-inches, and any range or value there between. In an embodiment, the length  1650  may be about 8-inches. 
     In an embodiment, the second length  1655  of the body  1605  may be any suitable length. In an embodiment, the second length  1655  may be from about 8-inches to about 15-inches, and any range or value there between. In an embodiment, the second length  1655  may be about 12-inches. 
     In an embodiment, the second end  1615  of the plug  1600  may have a flow surface  1620 . In an embodiment, the flow surface  1620  may have any suitable shape to direct the drilling mud from the drilling mud inlet of the drilling mud screen system to the drilling mud inlet of the drilling mud screen. Suitable shapes include, but are not limited to, a backward “J” shape, a curved shape, an “L” shape and any combination or variation thereof, as discussed further below. In an embodiment, the flow surface  1620  may have a curved shape. See e.g.,  FIG. 16B . 
       FIG. 17A  illustrates an upper, right perspective view of an optional plug with an “L” flow surface according to an embodiment of the present invention; and  FIG. 17B  illustrates a cross-sectional view of an optional plug with an “L” flow surface of  FIG. 17A . As shown in  FIGS. 17A and 17B , the optional plug  1700  has a body  1705  having a first end  1710  and a second end  1715 , a flow surface  1720 , an optional cavity  1730  and an optional port  1760 . 
     In an embodiment, the first end  1710  of the body  1705  may have a means to engage  1725  a drilling mud screen puller/installer tool  800 . See e.g.,  FIGS. 8A, 17A-17B, 18A-18B &amp; 29 . The means to engage  1725  may be any suitable means to accept, and provide a pulling surface for, the drilling mud screen puller/installer tool  800 . For example, a suitable means to engage  1725  includes, but is not limited to, a “key” opening to rotationally engage an inner shoulder. 
     In an embodiment, the first end  1710  of the plug  1700  may have an optional cavity  1730  extending towards, but not through, the flow surface  1720  of the plug  1700 . 
     In an embodiment, the first end  1710  of the plug  1700  may have an optional port  1760  extending from an outer surface of the plug  1700  into the optional cavity  1730 . 
     In an embodiment, the first end  1710  of the plug  1700  may have any suitable inner diameter  1735  of the optional cavity  1730 . In an embodiment, the inner diameter  1735  of the optional cavity  1730  may be from about 1-inch to about 3-inches, and any range or value there between. In an embodiment, the inner diameter  1735  of the optional cavity  1730  may be about 2-inches. 
     In an embodiment, the plug  1700  may have any suitable outer diameter  1740 . In an embodiment, the outer diameter  1740  of the plug  1700  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the outer diameter  1740  of the plug  1700  may be about 3.9-inches. 
     In an embodiment, the body  1705  has a centerline  1745 , a first length  1750  and a second length  1755 . In an embodiment, the first length  1750  of the body  1705  may be any suitable length. In an embodiment, the first length  1750  of the body  1705  may be from about 6-inches to about 10-inches, and any range or value there between. In an embodiment, the length  1750  may be about 8-inches. 
     In an embodiment, the second length  1755  of the body  1705  may be any suitable length. In an embodiment, the second length  1755  may be from about 8-inches to about 15-inches, and any range or value there between. In an embodiment, the second length  1755  may be about 12-inches. 
     In an embodiment, the second end  1715  of the plug  1700  may have a flow surface  1720 . In an embodiment, the flow surface  1720  may have any suitable shape to direct the drilling mud from the drilling mud inlet of the drilling mud screen system to the drilling mud inlet of the drilling mud screen. Suitable shapes include, but are not limited to, a backward “J” shape, a curved shape, an “L” shape and any combination or variation thereof, as discussed further below. In an embodiment, the flow surface  1720  may have an “L” shape. See e.g.,  FIG. 17B . 
     Two-Piece Body 
       FIG. 6A  illustrates a photograph of a drilling mud screen system according to an embodiment of the present invention, showing a two-piece body for the system. As shown in  FIG. 6A , the drilling mud screen system  600  has a first body  605   a  having a first end  610   a  and a second end  615   a , a first drilling mud inlet  620   a , a first drilling mud outlet  625   a , a first drilling mud screen access port  630   a , and an end cap  635 . The drilling mud screen system  600  has a second body  605   b  having a first end  610   b  and a second end  615   b , a second drilling mud inlet  620   b  and a second drilling mud outlet  625   b , and a second drilling mud screen access port  630   b.    
     In an embodiment, the first drilling mud inlet  620   a  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the second drilling mud outlet  625   b  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the first drilling mud inlet  620   a  and second drilling mud outlet  625   b . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the first drilling mud inlet  620   a  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the second drilling mud outlet  625   b  may be fluidly connected to an inlet of a vibrator hose via a weld. 
     As shown in  FIG. 6A , the drilling mud screen access port  630  of the drilling mud screen system  600  may be closed with an end cap  635  via a connection. Any suitable connection may be used. For example, suitable connections include, but are not limited to, pipe fittings. Connections are well known in the art. 
     In an embodiment, the drilling mud screen access port  630  of the drilling mud screen system  600  may be sealed with an end cap  635  via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the end cap  635  of the drilling mud screen system  600  may comprise a cap, an O-ring and a pipe collar. In an embodiment, the end cap may be a five-inch 1002 WECO cap with an O-ring. 
       FIG. 6B  illustrates a photograph of the exemplary drilling mud screen system of  FIG. 6A , showing a second drilling mud outlet  625   b.    
       FIG. 6C  illustrates a photograph of the exemplary drilling mud screen system of  FIGS. 6A-6B . 
       FIG. 6D  illustrates a photograph of the exemplary drilling mud screen system of  FIGS. 6A-6C , showing a detailed view of a first body  605   a  of the drilling mud screen system  600 . In an embodiment, the first body  605   a  may be a five-inch 1002 WECO Y-housing. 
     Standard Single Inlet and Optional Reduced Angle Inlet Version 
       FIG. 7A  illustrates an upper, cross-sectional view of a drilling mud screen system  700  according to an embodiment of the present invention, showing a standard single-inlet drilling mud system. 
       FIG. 19  illustrates a cross-sectional view of the drilling mud screen system in a monitoring configuration  1900  according to an embodiment of the present invention, showing an optional transducer subassembly  19100 . 
       FIG. 21A  illustrates an upper view of a mud screen system  2100  according to an embodiment of the present invention, showing an optional two-piece body for the system; and  FIG. 21B  illustrates a detailed, cross-sectional view of A-A of  FIG. 21A , showing an entry angle of about 30 degrees. 
       FIG. 23  illustrates a cross-sectional view of a mud screen system  2300  according to an embodiment of the present invention, showing an optional drilling mud screen insert  23105  inserted into a drilling mud screen  2340 . 
     As shown in  FIGS. 7A, 19 and 23 , the drilling mud screen system  700 ,  1900 ,  2100 ,  2300  has a first body  705   a ,  1905   a ,  2105   a ,  2305   a  having a first end  710   a ,  1910   a ,  2110   a ,  2310   a  and a second end  715   a ,  1915   a ,  2115   a ,  2315   a , a first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  and a first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a , an end cap  735 ,  1935 ,  2135 ,  2335 , and a first drilling mud screen access port  730   a ,  1930   a ,  2130   a ,  2330   a . The drilling mud screen system  700 ,  1900 ,  2100 ,  2300  has a second body  705   b ,  1905   b ,  2105   b ,  2305   b  having a first end  710   b ,  1910   b ,  2110   b ,  2310   b  and a second end  715   b ,  1915   b ,  2115   b ,  2315   b , a second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b , a second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b , and a second drilling mud screen access port  730   b ,  1930   b ,  2130   b ,  2330   b.    
     In an embodiment, the first drilling mud inlet  720   a ,  1930   a ,  2130   a ,  2330   a  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the first drilling mud inlet  720   a ,  1920   a ,  2130   a ,  2320   a  and second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may be fluidly connected to an inlet of a vibrator hose via a weld. 
     In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be fluidly connected by a connection. Any suitable connection may be used for the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b . For example, suitable connections include, but are not limited to, pipe fittings. Connections are well known in the art. In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be fluidly connected by a union. In an embodiment, the union may be a five-inch 1002 WECO union. 
     In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  of the drilling mud screen system  700 ,  1900 ,  2100 ,  2300  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be constructed of an AISI 4130/75k yield or equivalent material. See e.g.,  FIGS. 6A-6D . In an embodiment, the inner surface of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be unpainted. See e.g.,  FIG. 6D . In an embodiment, the outer surface of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be painted. See e.g.,  FIGS. 6A-6D . 
     In an embodiment, the drilling mud screen system  700 ,  1900 ,  2100 ,  2300  has a length  750 ,  1950 ,  2150 ,  2350 . The length  750 ,  1950 ,  2150 ,  2350  may be any suitable length. In an embodiment, the length  750 ,  1950 ,  2150 ,  2350  may be from about 40-inches to about 80-inches, and any range or value there between. In an embodiment, the length  750 ,  1950 ,  2150 ,  2350  may be about 56-inches. 
     In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  has a first centerline  745   a ,  1945   a ,  2145   a ,  2345   a  and a first length  750   a ,  1950   a ,  2150   a ,  2350   a . In an embodiment, the first centerline  745   a ,  1945   a ,  2145   a ,  2345   a  extends through the center of the first drilling mud screen access port  730   a ,  1930   a ,  2130   a ,  2330   a  to the first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a . The first length  750   a ,  1950   a ,  2150   a ,  2350   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  may be any suitable length. In an embodiment, the first length  750   a ,  1950   a ,  2150   a ,  2350   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  may be from about 20-inches to about 40-inches, and any range or value there between. In an embodiment, the first length  750   a ,  1950   a ,  2150   a ,  2350   a  may be about 27-inches or 30-inches. 
     In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  has a second centerline  755 ,  1955 ,  2155 ,  2355  and a third length  750   c ,  1950   c ,  2150   c ,  2350   c . In an embodiment, the second centerline  755 ,  1955 ,  2155 ,  2355  extends through the center of the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  to the first centerline  745   a ,  1945   a ,  2145   a ,  2345   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a . The third length  750   c ,  1950   c ,  2150   c ,  2350   c  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  may be any suitable length. 
     In an embodiment, the third length  750   c ,  1950   c ,  2350   c  of the first body  705   a ,  1905   a ,  2305   a  may be from about 10-inches to about 20-inches, and any range or value there between. In an embodiment, the third length  750   c ,  1950   c ,  2350   c  may be about 14-inches or 16-inches. 
     In an embodiment, the third length  2150   c  of the first body  2105   a  may be from about 20-inches to about 40-inches, and any range or value there between. In an embodiment, the third length  2150   c  may be about 25-inches or 30-inches. 
     In an embodiment, the first centerline  745   a ,  1945   a ,  2145   a ,  2345   a  and the second centerline  755 ,  1955 ,  2155 ,  2355  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  form a first angle  760 ,  1960 ,  2160 ,  2360 . 
     In an embodiment, the first angle  760 ,  1960 ,  2360  may be from about 30-degrees to about 120-degrees, and any range or value there between. In an embodiment, the first angle  760 ,  1960 ,  2360  may be from about 45-degrees to about 60-degrees. In an embodiment, the first angle  760 ,  1960 ,  2360  may be about 90-degrees. 
     In an embodiment, the first body  2105   a  may be modified to reduce the entry angle  2160  of the first drilling mud inlet  2120 , resulting in increased flow efficiency and decreased erosion. In an embodiment, the first angle  2160  may be from about 20-degrees to about 120-degrees, and any range or value there between. In an embodiment, the first angle  2160  may be about 30-degrees. 
     In an embodiment, the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be offset from a first end  710   a ,  1910   a ,  2110   a ,  2310   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a . The first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be offset from a first end  710   a ,  1910   a ,  2110   a ,  2310   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  at any suitable distance. In an embodiment, the second centerline  755 ,  1955 ,  2155 ,  2355  may be offset from the first end  710   a ,  1910   a ,  2310   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  from about 15-inches to about 20-inches, and any range or value there between. In an embodiment, the second centerline  755 ,  1955 ,  2155 ,  2355  may be offset from the first end  710   a ,  1910   a ,  2110   a ,  2310   a  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  about 18-inches. 
     In an embodiment, the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may have any suitable first inner diameter  765   a ,  1965   a ,  2165   a ,  2365   a ; and the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may have any suitable first outer diameter  770   a ,  1970   a ,  2170   a ,  2370   a . In an embodiment, the first inner diameter  765   a ,  1965   a ,  2165   a ,  2365   a  of the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  765   a ,  1965   a ,  2165   a ,  2365   a  of the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be about 4-inches. 
     In an embodiment, the first outer diameter  770   a ,  1970   a ,  2170   a ,  2370   a  of the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  770   a ,  1970   a ,  2170   a ,  2370   a  of the first drilling mud inlet  720   a ,  1920   a ,  2120   a ,  2320   a  may be about 5.5-inches. 
     In an embodiment, the second body  705   b ,  1905   b ,  2105   b ,  2305   b  has a second centerline  745   b ,  1945   b ,  2135   b ,  2345   b  and a second length  750   b ,  1950   b ,  2150   b ,  2350   b . In an embodiment, the second centerline  745   b ,  1945   b ,  2145   b ,  2345   b  extends through the center of the second drilling mud screen access port  730   b ,  1930   b ,  2130   b ,  2330   b  (and the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b ) to the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b . The second length  750   b ,  1950   b ,  2150   b ,  2350   b  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be any suitable length. In an embodiment, the second length  750   b ,  1950   b ,  2150   b ,  2350   b  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be from about 20-inches to about 40-inches, and any range or value there between. In an embodiment, the second length  750   b ,  1950   b ,  2150   b ,  2350   b  may be about 25-inches. 
     In an embodiment, the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b  may have any suitable second inner diameter  765   b ,  1965   b ,  2165   b ,  2365   b ; and the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b  may have any suitable second outer diameter  770   b ,  1970   b ,  2170   b ,  2370   b . In an embodiment, the second inner diameter  765   b ,  1965   b ,  2165   b ,  2365   b  of the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  765   b ,  1965   b ,  2165   b ,  2365   b  of the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  770   b ,  1970   b ,  2170   b ,  2370   b  of the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  770   b ,  1970   b ,  2170   b ,  2370   b  of the second drilling mud inlet  720   b ,  1920   b ,  2120   b ,  2320   b  may be about 5.5-inches. 
     In an embodiment, the first body  705   a ,  1905   a ,  2105   a ,  2305   a  has a first portion  775 ,  1975 ,  2175 ,  2375  and the second body  705   b ,  1905   b ,  2105   b ,  2305   b  has a second portion  780 ,  1980 ,  2180 ,  2380 . In an embodiment, the first portion  775 ,  1975 ,  2175 ,  2375  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  may have a first inner diameter  785 ,  1985 ,  2185 ,  2385  and an outer diameter  795 ,  1995 ,  2195 ,  2395 ; and the second portion  780 ,  1980 ,  2180 ,  2380  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may have a second inner diameter  790 ,  1990 ,  2190 ,  2390  and an outer diameter  795 ,  1995 ,  2195 ,  2395 . 
     In an embodiment, the first inner diameter  785 ,  1985 ,  2185 ,  2385  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  785 ,  1985 ,  2185 ,  2385  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  may be about 4-inches. 
     In an embodiment, the first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a  may have any suitable first inner diameter  765   a ,  1965   a ,  2165   a ,  2365   a ; and the first drilling mud outlet  725   a ,  1925   a ,  2135   a ,  2325   a  may have any suitable first outer diameter  770   a ,  1970   a ,  2170   a ,  2370   a . In an embodiment, the first inner diameter  765   a ,  1965   a ,  2165   a ,  2365   a  of the first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  765   a ,  1965   a ,  2165   a ,  2365   a  of the first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a  may be about 4-inches. 
     In an embodiment, the first outer diameter  770   a ,  1970   a ,  2170   a ,  2370   a  of the first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  770   a ,  1970   a ,  2170   a ,  2370   a  of the first drilling mud outlet  725   a ,  1925   a ,  2125   a ,  2325   a  may be about 5-inches. 
     In an embodiment, the second inner diameter  790 ,  1990 ,  2190 ,  2390  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  790 ,  1990 ,  2190 ,  2390  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be about 4-inches. 
     In an embodiment, a second portion  780 ,  1980 ,  2180 ,  2380  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may have a second inner diameter  790 ,  1990 ,  2190 ,  2390  to provide a high flow rate of drilling mud through the drilling mud screen  740 ,  1940 ,  2140 ,  2340 . In an embodiment, the second inner diameter  790 ,  1990 ,  2190 ,  2390  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be from about 3.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the second inner diameter  790 ,  1990 ,  2190 ,  2390  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be from about 4.5-inches to about 5.5-inches, and any range or value there between. 
     In an embodiment, the first outer diameter  795 ,  1995 ,  2195 ,  2395  of the first portion  775 ,  1975 ,  2175 ,  2375  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and/or the second portion  780 ,  1980 ,  2180 ,  2380  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be from about 5.5-inches to about 7.5-inches, and any range or value there between. In an embodiment, the first outer diameter  795 ,  1995 ,  2195 ,  2395  of the first portion  775 ,  1975 ,  2175 ,  2375  of the first body  705   a ,  1905   a ,  2105   a ,  2305   a  and/or the second portion  780 ,  1980 ,  2180 ,  2380  of the second body  705   b ,  1905   b ,  2105   b ,  2305   b  may be about 6.5-inches. 
     In an embodiment, the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may have any suitable second inner diameter  765   b ,  1965   b ,  2165   b ,  2365   b ; and the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may have any suitable second outer diameter  770   b ,  1970   b ,  2170   b ,  2370   b . In an embodiment, the second inner diameter  765   b ,  1965   b ,  2165   b ,  2365   b  of the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  765   b ,  1965   b ,  2165   b ,  2365   b  of the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  770   b ,  1970   b ,  2170   b ,  2370   b  of the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  770   b ,  1970   b ,  2170   b ,  2370   b  of the second drilling mud outlet  725   b ,  1925   b ,  2125   b ,  2325   b  may be about 5.5-inches. 
     Optional Double Inlet 
       FIG. 7B  illustrates an upper, cross-sectional view of a drilling mud screen system according to an embodiment of the present invention, showing an optional double-inlet drilling mud system. 
     As shown in  FIG. 7B , the drilling mud screen system  700  has a first body  705   a  having a first end  710   a  and a second end  715   a , a first drilling mud inlet  720   a , an optional first drilling mud inlet  720   a ′ and a first drilling mud outlet  725   a , an end cap  735 , and a first drilling mud screen access port  730   a . The drilling mud screen system  700  has a second body  705   b  having a first end  710   b  and a second end  715   b , a second drilling mud inlet  720   b , a second drilling mud outlet  725   b , and a second drilling mud screen access port  730   b.    
     In an embodiment, the first drilling mud inlet  720   a  and the optional first drilling mud inlet  720   a ′ may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the second drilling mud outlet  725   b  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the first drilling mud inlet  720   a , the optional first drilling mud inlet  720   a ′ and the second drilling mud outlet  725   b . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the first drilling mud inlet  720   a  and the optional first drilling mud inlet  720   a ′ may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the second drilling mud outlet  725   b  may be fluidly connected to an inlet of a vibrator hose via a weld. 
     In an embodiment, the first body  705   a  and the second body  705   b  may be fluidly connected by a connection. Any suitable connection may be used for the first body  705   a  and the second body  705   b . For example, suitable connections include, but are not limited to, pipe fittings. Connections are well known in the art. In an embodiment, the first body  705   a  and the second body  705   b  may be fluidly connected by a union. In an embodiment, the union may be a five-inch 1002 WECO union. 
     In an embodiment, the first body  705   a  and the second body  705   b  of the drilling mud screen system  700  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the first body  705   a  and the second body  705   b  may be constructed of an AISI 4130/75k yield or equivalent material. See e.g.,  FIGS. 6A-6D . In an embodiment, the inner surface of the first body  705   a  and the second body  705   b  may be unpainted. See e.g.,  FIG. 6D . In an embodiment, the outer surface of the first body  705   a  and the second body  705   b  may be painted. See e.g.,  FIGS. 6A-6D . 
     In an embodiment, the drilling mud screen system has a length  750 . The length  750  may be any suitable length. In an embodiment, the length  750  may be from about 40-inches to about 80-inches, and any range or value there between. In an embodiment, the length  750  may be about 56-inches. 
     In an embodiment, the first body  705   a  has a first centerline  745   a  and a first length  750   a . In an embodiment, the first centerline  745   a  extends through the center of the first drilling mud screen access port  730   a  to the first drilling mud outlet  725   a . The first length  750   a  of the first body  705   a  may be any suitable length. In an embodiment, the first length  750   a  of the first body  705   a  may be from about 20-inches to about 40-inches, and any range or value there between. In an embodiment, the first length  750   a  may be about 30-inches. 
     In an embodiment, the first body  705   a  has a second centerline  755  and a third length  750   c . In an embodiment, the second centerline  755  extends through the center of the first drilling mud inlet  720   a  to the first centerline  745   a  of the first body  705   a . The third length  750   c  of the first body  705   a  may be any suitable length. In an embodiment, the third length  750   c  of the first body  705   a  may be from about 10-inches to about 20-inches, and any range or value there between. In an embodiment, the third length  750   c  may be about 14-inches or 16-inches. 
     In an embodiment, the first body  705   a  has a second centerline  755  and a third length  750   c , and an optional second centerline  755 ′ and an optional third length  750   c ′. In an embodiment, the second centerline  755  extends through the center of the first drilling mud inlet  720   a  to the first centerline  745   a  of the first body  705   a . In an embodiment, the optional second centerline  755 ′ extends through the center of the optional first drilling mud inlet  720   a ′ to the first centerline  745   a  of the first body  705   a . The third length  750   c  of the first body  705   a  may be any suitable length; and the optional third length  750   c ′ of the first body  705   a  may be any suitable length. 
     In an embodiment, the third length  750   c  of the first body  705   a  may be from about 10-inches to about 20-inches, and any range or value there between. In an embodiment, the third length  750   c  may be about 14-inches or 16-inches. 
     In an embodiment, the optional third length  750   c ′ of the first body  705   a  may be from about 10-inches to about 20-inches, and any range or value there between. In an embodiment, the optional third length  750   c ′ may be about 14-inches or 16-inches. 
     In an embodiment, the third length  750   c  may be the same as the optional third length  750   c ′. In an embodiment, the third length  750   c  may be different from the optional third length  750   c′.    
     In an embodiment, the first centerline  745   a  and the second centerline  755  of the first body  705   a  form a first angle  760 . In an embodiment, the first angle  760  may be from about 30-degrees to about 120-degrees, and any range or value there between. In an embodiment, the first angle  760  may be from about 45-degrees to about 60-degrees. In an embodiment, the first angle  760  may be about 90-degrees. 
     In an embodiment, the first drilling mud inlet  720   a  may be offset from a first end  710   a  of the first body  705   a . The first drilling mud inlet  720   a  may be offset from a first end  710   a  of the first body  705   a  at any suitable distance. In an embodiment, the second centerline  755  may be offset from the first end  710   a  of the first body  705   a  from about 15-inches to about 20-inches, and any range or value there between. In an embodiment, the second centerline  755  may be offset from the first end  710   a  of the first body  705   a  about 18-inches. 
     In an embodiment, the first drilling mud inlet  720   a  may have any suitable first inner diameter  765   a ; and the first drilling mud inlet  720   a  may have any suitable first outer diameter  770   a . In an embodiment, the first inner diameter  765   a  of the first drilling mud inlet  720   a ′ may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  765   a  of the first drilling mud inlet  720   a  may be about 4-inches. 
     In an embodiment, the first centerline  745   a  and the optional second centerline  755 ′ of the first body  705   a  form an optional first angle  760 ′. In an embodiment, the optional first angle  760 ′ may be from about 30-degrees to about 120-degrees, and any range or value there between. In an embodiment, the optional first angle  760 ′ may be from about 45-degrees to about 60-degrees. In an embodiment, the optional first angle  760 ′ may be about 90-degrees. 
     In an embodiment, the first angle  760  may be the same as the optional first angle  760 ′. In an embodiment, the first angle  760  may be different from the optional first angle  760 ′. 
     In an embodiment, the optional first drilling mud inlet  720   a ′ may be offset from a first end  710   a  of the first body  705   a . The optional first drilling mud inlet  720   a ′ may be offset from a first end  710   a  of the first body  705   a  at any suitable distance. In an embodiment, the optional first centerline  755 ′ may be offset from the first end  710   a  of the first body  705   a  from about 15-inches to about 20-inches, and any range or value there between. In an embodiment, the optional first centerline  755 ′ may be offset from the first end  710   a  of the first body  705   a  about 18-inches. 
     In an embodiment, the optional second centerline  755 ′ of the optional first drilling mud inlet  720   a ′ may be offset from the second centerline  755  of the first drilling mud inlet  720   a  radially about the first centerline  745   a  of the first body  705   a  to form an optional second angle  760 ″. In an embodiment, the optional second angle  760 ″ may be from about 30 degrees to about 120 degrees, and any range or value there between. In an embodiment, the optional second angle  760 ″ may be from about 45-degrees to about 120-degrees. In an embodiment, the optional second angle  760 ″ may be from about 90-degrees to about 120-degrees. In an embodiment, the optional second angle  760 ″ may be about 120-degrees. See e.g.,  FIG. 7B . 
     In an embodiment, the optional first drilling mud inlet  720   a ′ may have any suitable optional first inner diameter  765   a ′; and the optional first drilling mud inlet  720   a ′ may have any suitable optional first outer diameter  770   a ′. In an embodiment, the optional first inner diameter  765   a ′ of the optional first drilling mud inlet  720   a ′ may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the optional first inner diameter  765   a ′ of the optional first drilling mud inlet  720   a ′ may be about 4-inches. 
     In an embodiment, the first outer diameter  770   a  of the first drilling mud inlet  720   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  770   a  of the first drilling mud inlet  720   a  may be about 5.5-inches. 
     In an embodiment, the optional first outer diameter  770   a ′ of the optional first drilling mud inlet  720   a ′ may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the optional first outer diameter  770   a ′ of the optional first drilling mud inlet  720   a ′ may be about 5.5-inches. 
     In an embodiment, the second body  705   b  has a second centerline  745   b  and a second length  750   b . In an embodiment, the second centerline  745   b  extends through the center of the second drilling mud screen access port  730   b  (and the second drilling mud inlet  720   b ) to the second drilling mud outlet  725   b . The second length  750   b  of the second body  705   b  may be any suitable length. In an embodiment, the second length  750   b  of the second body  705   b  may be from about 20-inches to about 40-inches, and any range or value there between. In an embodiment, the second length  750   b  may be about 25-inches. 
     In an embodiment, the second drilling mud inlet  720   b  may have any suitable second inner diameter  765   b ; and the second drilling mud inlet  720   b  may have any suitable second outer diameter  770   b . In an embodiment, the second inner diameter  765   b  of the second drilling mud inlet  720   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  765   b  of the second drilling mud inlet  720   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  770   b  of the second drilling mud inlet  720   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  770   b  of the second drilling mud inlet  720   b  may be about 5.5-inches. 
     In an embodiment, the first body  705   a  has a first portion  775  and the second body  705   b  has a second portion  780 . In an embodiment, the first portion  775  of the first body  705   a  may have a first inner diameter  785  and an outer diameter  795 ; and the second portion  780  of the second body  705   b  may have a second inner diameter  790  and an outer diameter  795 . 
     In an embodiment, the first inner diameter  785  of the first body  705   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  785  of the first body  705   a  may be about 4-inches. 
     In an embodiment, the first drilling mud outlet  725   a  may have any suitable first inner diameter  765   a ; and the first drilling mud outlet  725   a  may have any suitable first outer diameter  770   a . In an embodiment, the first inner diameter  765   a  of the first drilling mud outlet  725   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  765   a  of the first drilling mud outlet  725   a  may be about 4-inches. 
     In an embodiment, the first outer diameter  770   a  of the first drilling mud outlet  725   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  770   a  of the first drilling mud outlet  725   a  may be about 5-inches. 
     In an embodiment, the second inner diameter  790  of the second body  705   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  790  of the second body  705   b  may be about 4-inches. 
     In an embodiment, a second portion  780  of the second body  705   b  may have a second inner diameter  790  to provide a high flow rate of drilling mud through the drilling mud screen  740 . In an embodiment, the second inner diameter  790  of the second body  705   b  may be from about 3.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the second inner diameter  790  of the second body  705   b  may be from about 4.5-inches to about 5.5-inches, and any range or value there between. 
     In an embodiment, the first outer diameter  795  of the first portion  775  of the first body  705   a  and/or the second portion  780  of the second body  705   b  may be from about 5.5-inches to about 7.5-inches, and any range or value there between. In an embodiment, the first outer diameter  795  of the first portion  775  of the first body  705   a  and/or the second portion  780  of the second body  705   b  may be about 6.5-inches. 
     In an embodiment, the second drilling mud outlet  725   b  may have any suitable second inner diameter  765   b ; and the second drilling mud outlet  725   b  may have any suitable second outer diameter  770   b . In an embodiment, the second inner diameter  765   b  of the second drilling mud outlet  725   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  765   b  of the second drilling mud outlet  725   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  770   b  of the second drilling mud outlet  725   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  770   b  of the second drilling mud outlet  725   b  may be about 5.5-inches. 
     Two-Piece Piston Body 
       FIG. 30A  illustrates a cross-sectional view of an exemplary piston-style drilling mud screen system  3000  according to an embodiment of the present invention, showing a two-piece piston body for the system mounted on a skid  3000   a ;  FIG. 30B  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system  3000  of  FIG. 30A , showing the piston-style drilling mud screen system in a closed position;  FIG. 30C  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system  3000  of  FIGS. 30A-30B , showing the piston-style drilling mud screen system an unlatched position;  FIG. 30D  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system  3000  of  FIGS. 30A and 30C , showing the piston-style drilling mud screen system an unlatched and rotated position for removal of a drilling mud screen;  FIG. 30E  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system  3000  of  FIGS. 30A and 30D , showing the piston-style drilling mud screen system an unlatched and rotated position after removal of the drilling mud screen  3040 ;  FIG. 30F  illustrates a detailed view of an exemplary positive lock mechanism for the piston-style drilling mud screen system  3000  of  FIGS. 30A-30E , showing a spring-loaded lock mechanism; and  FIG. 30G  illustrates a detailed view of an exemplary breech lock connection for the exemplary piston-style drilling mud screen system  3000  of  FIGS. 30A-30F , showing a quarter turn breech lock connection. See also  FIGS. 33A-33D  &amp;  FIGS. 35A-35D . 
     As shown in  FIGS. 30A-30G , the piston-style drilling mud screen system  3000  comprises a first subassembly  30000   a , a first body  3005   a , a lock system  30100  (discussed below), a second body  3005   b  and a second subassembly  30000   b . The piston-style drilling mud screen system  3000  has a first subassembly  30000   a  having a first end  30010   a  and a second end  30015   a , a first inlet  30020   a  of the first subassembly  30000   a  and a first outlet  30025   a  of the first subassembly  30000   a . The piston-style drilling mud screen system  3000  has a first body  3005   a  having a first end  3010   a  and a second end  3015   a , a first drilling mud inlet  3020   a  of the first body  3005   a  and a first drilling mud outlet  3025   a  of the first body  3005   a  (and a first drilling mud screen access port  3030   a  of the first body  3005   a ). The piston-style drilling mud screen system  3000  has a second body  3005   b  having a first end  3010   b  and a second end  3015   b , a second drilling mud inlet  3020   b  of the second body  3005   b  (and a second drilling mud screen access port  3030   b  of the second body  3005   b ) and a second drilling mud outlet  3025   b  of the second body  3005   b . The piston-style drilling mud screen system  3000  has a second subassembly  30000   b  having a first end  30010   b  and a second end  30015   b , a second inlet  30020   b  of the second subassembly  30000   b  and a second outlet  30025   b  of the second subassembly  30000   b.    
     In an embodiment, the first drilling mud inlet  30020   a  of the first subassembly  30000   a  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the second drilling mud outlet  30025   b  of the second subassembly  30000   b  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the first drilling mud inlet  30020   a  of the first subassembly  30000   a  and the second drilling mud outlet  30025   b  of the second subassembly  30000   b . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the first drilling mud inlet  30020   a  of the first subassembly  30000   a  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the second drilling mud outlet  30025   b  of the second subassembly  30000   b  may be fluidly connected to an inlet of a vibrator hose via a weld. 
     In an embodiment, the first drilling mud inlet  3020   a  of the first body  3005   a  may be fluidly connected to the first drilling mud outlet  30025   a  of the first subassembly  30000   a  via a connection; and the second drilling mud outlet  3025   b  of the second body  3005   b  may be fluidly connected to the second drilling mud inlet  30020   b  of the second subassembly  30000   b  via a connection. Any suitable connection may be used for the first drilling mud inlet  3020   a  of the first body  3005   a  and second drilling mud outlet  3025   b  of the second body  3005   b . For example, suitable connections include, but are not limited to, pipe fittings and quarter-turn breech lock connections. In an embodiment, the first drilling mud inlet  3020   a  of the first body  3005   a  may be fluidly connected to, for example, a first drilling mud outlet  30025   a  of a first subassembly  30000   a  via a quarter-turn breech lock connection; and the second drilling mud outlet  3025   b  of the second body  3005   b  may be fluidly connected to a second drilling mud inlet  30020   b  of the second subassembly  30000   b  via a quarter-turn breech lock connection. 
     In an embodiment, the first drilling mud outlet  3025   a  of the first body  3005   a  may be fluidly connected to the second drilling mud inlet  3020   b  of the second body  3005   b  via a sleeve extending from a first end  3010   b  of the second body  3005   b . See e.g.,  FIG. 30A . See also  FIGS. 33A &amp; 35A . The sleeve may be integral to the second body  3005   b  or fluidly connected to the second body  3005   b . In an embodiment, a first end of the sleeve of the second body  3005   b  may be inserted into the first drilling mud outlet  3025   a  of the first body  3005   a . In an embodiment, the first body  3005   a  and/or the second body  3005   b  may be sealed via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the first drilling mud outlet  3025   a  of the first body  3005   a  may be fluidly connected to the second drilling mud inlet  3020   b  of the second body  3005   b  via a sleeve extending from a second end  3015   a  of the first body  3005   a . The sleeve may be integral to the first body  3005   a  or fluidly connected to the first body  3005   a . In an embodiment, a second end of the sleeve of the first body  3005   a  may be inserted into the second drilling mud inlet  3020   b  of the second body  3005   b . In an embodiment, the first body  3005   a  and/or the second body  3005   b  may be sealed via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the first drilling mud outlet  3025   a  of the first body  3005   a  may be fluidly connected to the second drilling mud inlet  3020   b  of the second body  3005   b  via a union. In an embodiment, the union may be a lock system  30100 . In an embodiment, the first body  3005   a  and/or the second body  3005   b  may be sealed with the lock system  30100  via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the first drilling mud outlet  3025   a  of the first body  3005  may be fluidly connected to a first inlet  30125   a  of a first body  30105   a  of the lock system  30100 . In an embodiment, the first body  3005   a  may be sealed with the lock system  30100  via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, a first outlet  30125   a  of the first body  30105   a  of the lock system  30100  may be fluidly connected to a second inlet  30120   b  of a second body  30105   b  of the lock system  30100 . In an embodiment, the first body  30105   a  of the lock system  30100  may be sealed with the second body  30105   b  of the lock system  30100  via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the second outlet  30125   b  of the second body  30105   b  of the lock system  30100  may be fluidly connected to the second drilling mud inlet  3020   b  of the second body  3005   b . In an embodiment, the second body  3005   b  may be sealed with the lock system  30100  via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the first subassembly  30000   a  and the second subassembly  30000   b  of the drilling mud screen system  3000  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the first subassembly  30000   a  and the second subassembly  30000   b  may be constructed of an AISI 4130/75k yield or equivalent material. See e.g.,  FIGS. 30A-30E . See also  FIGS. 33A-33D &amp; 35A-35D . In an embodiment, the inner surface of the first subassembly  30000   a  and the second subassembly  30000   b  may be unpainted. In an embodiment, the outer surface of the first subassembly  30000   a  and the second assembly  30000   b  may be painted. 
     In an embodiment, the first body  3005   a  and the second body  3005   b  of the drilling mud screen system  3000  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the first body  3005   a  and the second body  3005   b  may be constructed of an AISI 4130/75k yield or equivalent material. See e.g.,  FIGS. 30A-30E . See also  FIGS. 33A-33D &amp; 35A-35D . In an embodiment, the inner surface of the first body  3005   a  and the second body  3005   b  may be unpainted. In an embodiment, the outer surface of the first body  3005   a  and the second body  3005   b  may be painted. 
     In an embodiment, the drilling mud screen system  3000  has a length  3050 . The length  3050  may be any suitable length. In an embodiment, the length  3050  may be from about 40-inches to about 80-inches, and any range or value there between. In an embodiment, the length  3050  may be about 41 inches or about 42-inches. 
     In an embodiment, the first subassembly  30000   a  has a first centerline  30045   a  and a first length  30050   a . In an embodiment, the first centerline  30045   a  extends through the center of the first drilling mud screen inlet  30020   a  of the first subassembly  30000   a  to the first drilling mud outlet  30025   a  of the first subassembly  30000   a  (and the first drilling mud screen inlet  3020   a  of the first body  3005   a ). The first length  30050   a  of the first subassembly  30000   a  may be any suitable length. In an embodiment, the first length  30050   a  of the first subassembly  30000   a  may be from about 4-inches to about 10-inches, and any range or value there between. In an embodiment, the first length  30050   a  of the first subassembly  30000   a  may be about 6-inches. 
     In an embodiment, the first drilling mud inlet  30020   a  of the first subassembly  30000   a  may have any suitable first inner diameter  30065   a ; and the first drilling mud inlet  30020   a  of the first subassembly  30000   a  may have any suitable first outer diameter  30070   a . In an embodiment, the first inner diameter  30065   a  of the first drilling mud inlet  30020   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  30065   a  of the first drilling mud inlet  30020   a  may be about 4-inches. 
     In an embodiment, the first outer diameter  30070   a  of the first drilling mud inlet  30020   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  30070   a  of the first drilling mud inlet  30020   a  may be about 5.5-inches. 
     In an embodiment, the second subassembly  30000   b  has a second centerline  30045   b  and a second length  30050   b . In an embodiment, the second centerline  30045   b  extends through the center of the second drilling mud screen inlet  30020   b  of the second subassembly  30000   b  (and the second drilling mud outlet  3025   b  of the second body  3005   b ) to the second drilling mud outlet  30020   b  of the second subassembly  30000   b . The second length  30050   b  of the second subassembly  30000   b  may be any suitable length. In an embodiment, the second length  30050   b  of the second subassembly  30000   b  may be from about 4-inches to about 10-inches, and any range or value there between. In an embodiment, the second length  30050   b  of the second subassembly  30000   b  may be about 6-inches. 
     In an embodiment, the second drilling mud inlet  30020   b  of the second subassembly  30000   b  may have any suitable second inner diameter  30065   b ; and the second drilling mud inlet  30020   b  of the second subassembly  30000   b  may have any suitable second outer diameter  30070   b . In an embodiment, the second inner diameter  30065   b  of the second drilling mud inlet  30020   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  30065   b  of the second drilling mud inlet  30020   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  30070   b  of the second drilling mud inlet  30020   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  30070   b  of the second drilling mud inlet  30020   b  may be about 5.5-inches. 
     In an embodiment, the first body  3005   a  has a first centerline  3045   a  and a first length  3050   a . In an embodiment, the first centerline  3045   a  extends through the center of the first drilling mud screen inlet  3020   a  to the first drilling mud outlet  3025   a  (and the first drilling mud screen access port  3030   a ). The first length  3050   a  of the first body  3005   a  may be any suitable length. In an embodiment, the first length  3050   a  of the first body  3005   a  may be from about 15-inches to about 40-inches, and any range or value there between. In an embodiment, the first length  3050   a  may be about 16.5-inches. 
     In an embodiment, the first drilling mud inlet  3020   a  may have any suitable first inner diameter  3065   a ; and the first drilling mud inlet  3020   a  may have any suitable first outer diameter  3070   a . In an embodiment, the first inner diameter  3065   a  of the first drilling mud inlet  3020   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  3065   a  of the first drilling mud inlet  3020   a  may be about 4-inches. 
     In an embodiment, the first outer diameter  3070   a  of the first drilling mud inlet  3020   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  3070   a  of the first drilling mud inlet  3020   a  may be about 5.5-inches. 
     In an embodiment, the first drilling mud outlet  3025   a  may have any suitable first inner diameter  3065   a ; and the first drilling mud outlet  3025   a  may have any suitable first outer diameter  3070   a . In an embodiment, the first inner diameter  3065   a  of the first drilling mud outlet  3025   a  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  3065   a  of the first drilling mud outlet  3025   a  may be about 4-inches. 
     In an embodiment, the first outer diameter  3070   a  of the first drilling mud outlet  3025   a  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the first outer diameter  3070   a  of the first drilling mud outlet  3025   a  may be about 5.5-inches. 
     In an embodiment, the second body  3005   b  has a second centerline  3045   b  and a second length  3050   b . In an embodiment, the second centerline  3045   b  extends through the center of the second drilling mud screen access port  3030   b  (and the second drilling mud inlet  3020   b ) to the second drilling mud outlet  3025   b . The second length  3050   b  of the second body  3005   b  may be any suitable length. In an embodiment, the second length  3050   b  of the second body  3005   b  may be from about 15-inches to about 40-inches, and any range or value there between. In an embodiment, the second length  3050   b  may be about 18-inches or about 19-inches. 
     In an embodiment, the second drilling mud inlet  3020   b  may have any suitable second inner diameter  3065   b ; and the second drilling mud inlet  3020   b  may have any suitable second outer diameter  3070   b . In an embodiment, the second inner diameter  3065   b  of the second drilling mud inlet  3020   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  3065   b  of the second drilling mud inlet  3020   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  3070   b  of the second drilling mud inlet  3020   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  3070   b  of the second drilling mud inlet  3020   b  may be about 5.5-inches. 
     In an embodiment, the second drilling mud outlet  3025   b  may have any suitable second inner diameter  3065   b ; and the second drilling mud outlet  3025   b  may have any suitable second outer diameter  3070   b . In an embodiment, the second inner diameter  3065   b  of the second drilling mud outlet  3025   b  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  3065   b  of the second drilling mud outlet  3025   b  may be about 4-inches. 
     In an embodiment, the second outer diameter  3070   b  of the second drilling mud outlet  3025   b  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter  3070   b  of the second drilling mud outlet  3025   b  may be about 5.5-inches. 
     Lock System 
     The piston-style drilling mud screen system  3000  has a lock system  30100 . The lock system  30100  has a first lock  30100   a , and a second lock  30100   b , a first body  30105   a  of the lock system  30100  having a first end  30110   a  and a second end  30115   a , a second body  30105   b  of the lock system  30100  having a first end  30110   b  and a second end  30115   b.    
     In an embodiment, the first end  30110   a  of the first body  30105   a  of the lock system  30100  (and the second end  3015   a  of the first body  3005   a ) may be adapted to receive the first lock  30100   a . See e.g.,  FIG. 30F . In an embodiment, the first lock  30100   a  may extend through the first end  30110   a  of the first body  30105   a  of the lock system and engage the second end  3015   a  of the first body  3005   a  when the system  3000  is closed. 
     The first lock  30100   a  may be any suitable positive locking mechanism. For example, a suitable first lock  30100   a  includes, but is not limited to, a spring-loaded lock. In an embodiment, the first lock  30100   a  may be a spring-loaded lock. See e.g.,  FIG. 30F . 
     In an embodiment, the second end  3015   a  of the first body  3005   a  may be disposed through the first end  30110   a  of the first body  30105   a  of the lock system  30100  such that the second end  3015   a  of the first body  3005   a  is held by a first lip at the first end  30110   a  of the first body  30105   a  of the lock system  30100 . See e.g.,  FIG. 30A . See also  FIGS. 33A &amp; 35A . 
     In an embodiment, the second end  3015   a  of the first body  3005   a  and the first end  30110   b  of the first body  30105   a  of the lock system  30100  may be sealed via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the second end  30115   b  of the second body  30105   b  of the lock system  30100  (and the second end  3015   b  of the second body  3005   b ) may be adapted to receive the second lock  30100   b . See e.g.,  FIG. 30F . In an embodiment, the second lock  31000   b  may extend through the second end  30115   b  of the second body  30105   b  of the lock system  30100  and engage the second body  3005   b  when the system is closed. 
     The second lock  30100   b  may be any suitable positive locking mechanism. For example, a suitable second lock  30100   b  includes, but is not limited to, a spring-loaded lock. In an embodiment, the second lock  30100   b  may be a spring-loaded lock. See e.g.,  FIG. 30F . 
     In an embodiment, the first end  3010   b  of the second body  3005   b  may be disposed through the second end  30115   b  of the second body  30105   b  of the lock system  30100  such that the first end  3010   b  of the second body  3005   b  is held by a second lip at or near the second end  30115   b  of the second body  30105   b  of the lock system  30100 . 
     In an embodiment, the first end  3010   b  of the second body  3005   b  and the second end  30115   b  of the second body  30105   b  of the lock system  30100  may be sealed via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the second end  30115   a  of the first body  30105   a  and the first end  30110   b  of the second body  30105   b  of the lock system  30100  may be attached by a connection. Any suitable connection may be used for the second end  30115   a  of the first body  30105   a  and the first end  30110   b  of the second body  30105   b  of the lock system  30100 . For example, suitable connections include, but are not limited to, pipe fittings and threads. Connections are well known in the art. In an embodiment, the first end  30110   b  of second body  30105   b  of the lock system  30100  may be threaded into the second end  30115   a  of the first body  30105   a  of the lock system  30100 . In an embodiment, the second end  30115   a  of the first body  30105   a  of the lock system  30100  may be threaded into the first end  30110   b  of the second body  30105   b  of the lock system  30100 . 
     In an embodiment, the second end  30115   a  of the first body  30105   a  and the first end  30110   b  of the second body  30105   b  of the lock system  30100  may be sealed via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the first body  30105   a  and the second body  30105   b  of the lock system  30100  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the first body  30105   a  and the second body  30105   b  may be constructed of an AISI 4130/75k yield or equivalent material. See e.g.,  FIGS. 30A-30E . In an embodiment, the inner surface of the first body  30105   a  and the second body  30105   b  may be unpainted. In an embodiment, the outer surface of the first body  30105   a  and the second body  30105   b  may be painted. 
     In an embodiment, the lock system  30100  has a length  30150 . The length  30150  may be any suitable length. In an embodiment, the length  30150  may be from about 8-inches to about 20-inches, and any range or value there between. In an embodiment, the length  30150  may be about 11-inches or about 12-inches. 
     In an embodiment, the first body  30105   a  has a first centerline  30145   a  and a first length  30150   a . In an embodiment, the first centerline  30145   a  extends through the center of the first inlet  30120   a  to the first outlet  30125   a . The first length  30150   a  of the first body  30105   a  may be any suitable length. In an embodiment, the first length  30150   a  of the first body  30105   a  may be from about 4-inches to about 15-inches, and any range or value there between. In an embodiment, the first length  30150   a  may be about 9-inches or about 10-inches. 
     In an embodiment, the first inlet  30120   a  of the first body  30105   a  may have any suitable first inner diameter  30165   a ; and the first inlet  30120   a  of the first body  30105   a  may have any suitable first outer diameter  30170   a . In an embodiment, the first inner diameter  30065   a  of the first inlet  30020   a  may be from about 4.5-inches to about 6.5-inches (e.g., outer diameter of first body  3005   a ), and any range or value there between. In an embodiment, the first inner diameter  30165   a  of the first inlet  30120   a  may be about 5.5-inches. 
     In an embodiment, the first outer diameter  30170   a  of the first inlet  30020   a  may be from about 6-inches to about 8-inches, and any range or value there between. In an embodiment, the first outer diameter  30170   a  of the first inlet  30120   a  may be about 7-inches. 
     In an embodiment, the first body  30105   a  may have any suitable first inner diameter  30185   a ; and the first body  30105   a  may have any suitable first outer diameter  30190   a . In an embodiment, the first inner diameter  30170   a  of the first body  30105   a  may be from about 4.5-inches to about 6-inches (e.g., outer diameter of second body  3005   b ), and any range or value there between. In an embodiment, the first inner diameter  30170   a  of the first body  30105   a  may be about 5.5-inches. 
     In an embodiment, the first outer diameter  30190   a  of the first body  30105   a  may be from about 6-inches to about 8-inches, and any range or value there between. In an embodiment, the first outer diameter  30090   a  of the first body  30105   a  may be about 7-inches. 
     In an embodiment, the first outlet  30125   a  of the first body  30105   a  may have any suitable first inner diameter  31100   a ; and the first outlet  30125   a  of the first body  30105   a  may have any suitable first outer diameter  30195   a . In an embodiment, the first inner diameter  31100   a  of the first outlet  30125   a  may be from about 4.5-inches to about 6.5-inches (e.g., outer diameter of first body  3005   a ), and any range or value there between. In an embodiment, the first inner diameter  31100   a  of the first outlet  30125   a  may be about 5.5-inches. 
     In an embodiment, the second body  30105   b  has a second centerline  30145   b  and a second length  30150   b . In an embodiment, the second centerline  30145   b  extends through the center of the second inlet  30120   b  to the second outlet  30125   b . The second length  30150   b  of the second body  30105   b  may be any suitable length. In an embodiment, the second length  30150   b  of the second body  30105   b  may be from about 4-inches to about 10-inches, and any range or value there between. In an embodiment, the second length  30150   b  may be about 6-inches or about 7-inches. 
     In an embodiment, the second inlet  30120   b  of the second body  30105   b  may have any suitable second inner diameter  31100   b ; and the second inlet  30120   b  of the second body  30105   b  may have any suitable second outer diameter  30195   b . In an embodiment, the second inner diameter  31100   b  of the second inlet  30020   b  may be from about 4.5-inches to about 6.5-inches (e.g., outer diameter of second body  3005   b ), and any range or value there between. In an embodiment, the second inner diameter  31100   b  of the second inlet  30120   b  may be about 5.5-inches. 
     In an embodiment, the second body  30105   b  may have any suitable second inner diameter  30185   b ; and the second body  30105   b  may have any suitable second outer diameter  30190   b . In an embodiment, the second inner diameter  30170   b  of the second body  30105   b  may be from about 4.5-inches to about 6.5-inches (e.g., outer diameter of second body  3005   b ), and any range or value there between. In an embodiment, the second inner diameter  30170   b  of the second body  30105   b  may be about 5.5-inches. 
     In an embodiment, the second outer diameter  30190   b  of the second body  30105   b  may be from about 6-inches to about 8-inches, and any range or value there between. In an embodiment, the second outer diameter  30090   b  of the second body  30105   b  may be about 7-inches. 
     In an embodiment, the second outlet  30125   b  of the second body  30105   b  may have any suitable second inner diameter  30165   b ; and the second outlet  30125   b  of the second body  30105   b  may have any suitable second outer diameter  30170   b . In an embodiment, the second inner diameter  30165   b  of the second outlet  30125   b  may be from about 4.5-inches to about 6.5-inches (e.g., outer diameter of second body  3005   b ), and any range or value there between. In an embodiment, the second inner diameter  30165   b  of the second outlet  30125   b  may be about 5.5-inches. 
     In an embodiment, the second outer diameter  30170   b  of the second outlet  30125   b  may be from about 6-inches to about 8-inches, and any range or value there between. In an embodiment, the second outer diameter  30070   b  of the second outlet  30125   b  may be about 7-inches. 
     Skid 
     As shown in  FIGS. 30A-30E and 30G, and 31 , the piston-style drilling mud screen system  3000  may be mounted on a skid  3000   a . The skid  3000   a  has a first support  3000   b , a second support  3000   c , a third support  3000   d  and a base  3000   e.    
     In an embodiment, an upper end of the first support  3000   b  may be mechanically coupled to a lower surface of the first subassembly  30000   a  via a connection and/or a coupling; and the lower end of the first support  3000   b  may be mechanically coupled to an upper surface of the base  3000   d  via a connection and/or a coupling. 
     In an embodiment, the first support  3000   b  may be stationary when the third support  3000   d  is pivotable and/or rotatable, raisable and/or lowerable, and any combination thereof. 
     In an embodiment, the first support  3000   b  may be pivotable and/or rotatable. In an embodiment, an upper end of the first support  3000   b  may be pivotable and/or rotatable. In an embodiment, a lower end of the first support  3000   b  may be rotatable. 
     In an embodiment, the first support  3000   b  may be raisable and/or lowerable. In an embodiment, an upper end of the first support  3000   b  may be raisable and/or lowerable. In an embodiment, a lower end of the first support  3000   b  may be raisable and/or lowerable. 
     Any suitable connection may be used for the first support  3000   b . For example, suitable connections include, but are not limited to, bands, claps, fittings and welds. 
     In an embodiment, an upper end of the first support  3000   b  may be attached to an outer surface of the first subassembly  30000   a  by a connection. For example, suitable connections include, but are not limited to, bands, claps, fittings and welds. In an embodiment, an upper end of the first support  3000   b  may be attached to an outer surface of the first subassembly  30000   a  by a band or a clamp. 
     In an embodiment, the lower end of the first support  3000   b  may be attached to the upper surface of the skid  3000   a  by a connection. For example, suitable connections include, but are not limited to, bands, claps, fittings and welds. In an embodiment, the lower end of the first support  3000   b  may be attached to the upper surface of the skid  3000   a  by a connection. In an embodiment, the lower end of the first support  3000   b  may be attached to the upper surface of the skid  3000   a  by fittings or welds. 
     Any suitable coupling may be used for the first support  3000   b . For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the coupling for the first support  3000   b  may be a bearing. In an embodiment, the coupling for the first support  3000   b  may be a box channel with a pivot pin. 
     In an embodiment, the first support  3000   b  may have a coupling at or near an upper end. For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the first support  3000   b  may have a bearing or a socket at or near an upper end. In an embodiment, the first support  3000   b  may have a hinge or a pivot at or near an upper end. 
     In an embodiment, the first support  3000   b  may have a coupling at or near a lower end. For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the first support  3000   b  may have a bearing or a socket at or near a lower end. In an embodiment, the first support  3000   b  may have a hinge or a pivot at or near a lower end. 
     In an embodiment, the first support  3000   b  may pivot and/or rotate automatically and/or manually. In an embodiment, the first support  3000   b  may pivot and/or rotate electro-mechanically, hydraulically, mechanically (e.g., geared) or pneumatically. In an embodiment, the first support  3000   b  may pivot and/or rotate manually. 
     Any suitable extension may be used for the first support  3000   b . For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the extension for the first support  3000   b  may be an extendable piston. In an embodiment, the extension for the first support  3000   b  may be a telescoping pipe with a clevis pin. 
     In an embodiment, the first support  3000   b  may have an extension at or near an upper end. For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the first support  3000   b  may have an extendable arm at or near an upper end. In an embodiment, the first support  3000   b  may have a telescoping pipe with a clevis pin at or near an upper end. 
     In an embodiment, the first support  3000   b  may have an extension at or near a lower end. For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the first support  3000   b  may have an extendable piston at or near a lower end. In an embodiment, the first support  3000   b  may have a telescoping pipe with a clevis pin at or near a lower end. 
     In an embodiment, the first support  3000   b  may raise and/or lower automatically and/or manually. In an embodiment, the first support  3000   b  may raise and/or lower electro-mechanically, hydraulically, mechanically (e.g., geared) or pneumatically. In an embodiment, the first support  3000   b  may raise and/or lower manually. 
     In an embodiment, an upper end of the second stationary support  3000   c  may be mechanically coupled to a lower surface of the second subassembly  30000   b ; and the lower end of the second stationary support  3000   c  may be mechanically coupled to an upper surface of the base  3000   e.    
     In an embodiment, the second support  3000   c  may be stationary when the third support  3000   d  is pivotable and/or rotatable, raisable and/or lowerable, and any combination thereof. 
     In an embodiment, the second support  3000   c  may be pivotable and/or rotatable. In an embodiment, an upper end of the second support  3000   c  may be pivotable and/or rotatable. In an embodiment, a lower end of the second support  3000   c  may be rotatable. 
     In an embodiment, the second support  3000   c  may be raisable and/or lowerable. In an embodiment, an upper end of the second support  3000   c  may be raisable and/or lowerable. In an embodiment, a lower end of the second support  3000   c  may be raisable and/or lowerable. 
     Any suitable connection may be used for the second support  3000   c . For example, suitable connections include, but are not limited to, fittings and welds. Connections are well known in the art. 
     In an embodiment, the lower end of the second support  3000   c  may be attached to the upper surface of the skid  3000   a  by a connection. For example, suitable connections include, but are not limited to, bands, claps, fittings and welds. In an embodiment, the lower end of the second support  3000   c  may be attached to the upper surface of the skid  3000   a  by a connection. In an embodiment, the lower end of the second support  3000   c  may be attached to the upper surface of the skid  3000   a  by fittings or welds. 
     Any suitable coupling may be used for the second support  3000   c . For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the coupling for the second support  3000   c  may be a bearing. In an embodiment, the coupling for the second support  3000   c  may be a box channel with a pivot pin. 
     In an embodiment, the second support  3000   c  may have a coupling at or near an upper end. For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the second support  3000   c  may have a bearing or a socket at or near an upper end. In an embodiment, the second support  3000   c  may have a hinge or a pivot at or near an upper end. 
     In an embodiment, the second support  3000   c  may have a coupling at or near a lower end. For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the second support  3000   c  may have a bearing or a socket at or near a lower end. In an embodiment, the second support  3000   c  may have a hinge or a pivot at or near a lower end. 
     In an embodiment, the second support  3000   c  may pivot and/or rotate automatically and/or manually. In an embodiment, the second support  3000   c  may pivot and/or rotate electro-mechanically, hydraulically, mechanically (e.g., geared) or pneumatically. In an embodiment, the second support  3000   c  may pivot and/or rotate manually. 
     Any suitable extension may be used for the second support  3000   c . For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the extension for the second support  3000   c  may be an extendable piston. In an embodiment, the coupling for the second support  3000   c  may be a telescoping pipe with a clevis pin. 
     In an embodiment, the second support  3000   c  may have an extension at or near an upper end. For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the second support  3000   c  may have an extendable arm at or near an upper end. In an embodiment, the second support  3000   c  may have a telescoping pipe with a clevis pin at or near an upper end. 
     In an embodiment, the second support  3000   c  may have an extension at or near a lower end. For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the second support  3000   c  may have an extendable piston at or near a lower end. In an embodiment, the second support  3000   c  may have a telescoping pipe with a clevis pin at or near a lower end. 
     In an embodiment, the second support  3000   c  may raise and/or lower automatically and/or manually. In an embodiment, the second support  3000   c  may raise and/or lower electro-mechanically, hydraulically, mechanically (e.g., geared) or pneumatically. In an embodiment, the second support  3000   c  may raise and/or lower manually. 
     In an embodiment, an upper end of the third support  3000   d  may be mechanically coupled to a lower surface of the lock system  30100  (e.g., a first body  30105   a  of the lock system  30100 ); and the lower end of the third support  3000   d  may be mechanically coupled to an upper surface of the base  3000   e.    
     In an embodiment, the third support  3000   d  may be stationary when the first support  3000   b  and/or the second support  3000   c  are pivotable and/or rotatable, raisable and/or lowerable, and any combination thereof. 
     In an embodiment, the third support  3000   d  may be pivotable and/or rotatable. In an embodiment, an upper end of the third support  3000   d  may be pivotable and/or rotatable. In an embodiment, the lower end of the third support  3000   d  may be rotatable or stationary. 
     In an embodiment, the third support  3000   d  may be raisable and/or lowerable. In an embodiment, an upper end of the third support  3000   d  may be raisable and/or lowerable. In an embodiment, a lower end of the third support  3000   d  may be raisable and/or lowerable. 
     Any suitable connection may be used for the third support  3000   d . For example, suitable connections include, but are not limited to, fittings and welds. Connections are well known in the art. 
     In an embodiment, the lower end of the third support  3000   d  may be attached to the upper surface of the skid  3000   a  by a connection. For example, suitable connections include, but are not limited to, bands, claps, fittings and welds. In an embodiment, the lower end of the third support  3000   d  may be attached to the upper surface of the skid  3000   a  by a connection. In an embodiment, the lower end of the third support  3000   d  may be attached to the upper surface of the skid  3000   a  by fittings or welds. 
     Any suitable coupling may be used for the third support  3000   d . For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the coupling for the third support  3000   d  may be a bearing. In an embodiment, the coupling for the third support  3000   d  may be a box channel with a pivot pin. 
     In an embodiment, the third support  3000   d  may have a coupling at or near an upper end. For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the third support  3000   d  may have a bearing or a socket at or near an upper end. In an embodiment, the third support  3000   d  may have a hinge or a pivot at or near an upper end. 
     In an embodiment, the third support  3000   d  may have a coupling at or near a lower end. For example, suitable couplings include, but are not limited to bearings, hinges, pivots, sockets, and combinations thereof. In an embodiment, the third support  3000   d  may have a bearing or a socket at or near a lower end. In an embodiment, the third support  3000   d  may have a hinge or a pivot at or near a lower end. 
     In an embodiment, the third support  3000   d  may pivot and/or rotate automatically and/or manually. In an embodiment, the third support  3000   d  may pivot and/or rotate electro-mechanically, hydraulically, mechanically (e.g., geared) or pneumatically. In an embodiment, the third support  3000   d  may pivot and/or rotate manually. 
     Any suitable extension may be used for the third support  3000   d . For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the extension for the third support  3000   d  may be an extendable piston. In an embodiment, the extension for the third support  3000   d  may be a telescoping pipe with a clevis pin. 
     In an embodiment, the third support  3000   d  may have an extension at or near an upper end. For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the third support  3000   d  may have an extendable arm at or near an upper end. In an embodiment, the third support  3000   d  may have a telescoping pipe with a clevis pin at or near an upper end. 
     In an embodiment, the third support  3000   d  may have an extension at or near a lower end. For example, suitable extensions include, but are not limited to articulated arms, extendable pistons, telescoping pipes, and combinations thereof. In an embodiment, the third support  3000   d  may have an extendable piston at or near a lower end. In an embodiment, the third support  3000   d  may have a telescoping pipe with a clevis pin at or near a lower end. 
     In an embodiment, the third support  3000   d  may raise and/or lower automatically and/or manually. In an embodiment, the third support  3000   d  may raise and/or lower electro-mechanically, hydraulically, mechanically (e.g., geared) or pneumatically. In an embodiment, the third support  3000   d  may raise and/or lower manually. 
     In an embodiment, the first support  3000   b , the second support  3000   c  and/or the third support  3000   d  of the skid  3000   a  of the drilling mud screen system  3000  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the first support  3000   b , the second support  3000   c , and/or the third support  3000   d  of the skid  3000   a  may be constructed of an alloy steel or equivalent material. See e.g.,  FIGS. 30A-30E . See also  FIGS. 33A-33D &amp; 35A-35D . In an embodiment, the first support  3000   b , the second support  3000   c , and/or the third support  3000   d  of the skid  3000   a  may be constructed of a 304 stainless steel material. In an embodiment, the first support  3000   b , the second support  3000   c , and/or the third support  3000   d  of the skid  3000   a  may be unpainted. In an embodiment, the first support  3000   b , the second support  3000   c , and/or the third support  3000   d  of the skid  3000   a  may be painted. 
     In an embodiment, the base  3000   e  of the skid  3000   a  of the drilling mud screen system  3000  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, a concrete, a polymer, and any alloy steel suitable for a drilling mud application. In an embodiment, the base  3000   e  may be constructed of a concrete. In an embodiment, the base  3000   e  may be constructed of a polymer. In an embodiment, the base  3000   e  of the skid  3000   a  may be constructed of an alloy steel or equivalent material. See e.g.,  FIGS. 30A-30E . See also  FIGS. 33A-33D &amp; 35A-33D . In an embodiment, the base  3000   e  of the skid  3000   a  may be constructed of a 304 stainless steel material. In an embodiment, the base  3000   e  of the skid  3000   a  may be unpainted. In an embodiment, the base  3000   e  of the skid  3000   a  may be painted. 
     Optional End Subassembly for Piston-Body 
       FIG. 31  illustrates a detailed view of an optional end subassembly for a piston-style drilling mud screen system  3000  according to an embodiment of the present invention, providing a cross-over connection  3105  from a first subassembly  30000   a  and/or a second subassembly  30000   b  to an optional transducer subassembly  19100  (discussed below). As shown in  FIG. 31 , the optional end subassembly  3100  comprises a cross-over connection  3105  from a first subassembly  30000   a  and/or a second subassembly  30000   b  to an optional transducer subassembly  19100 . 
     Optional Transducer Subassembly for Two-Piece Body and Piston Body 
       FIG. 19  illustrates a cross-sectional view of the drilling mud screen system in a monitoring configuration  1900  according to an embodiment of the present invention, showing an optional transducer subassembly  19100 . See also  FIG. 33A . As shown in  FIG. 19 , the drilling mud screen system  19200  has a first body  1905   a  having a first end  1910   a  and a second end  1915   a , a first drilling mud inlet  1920   a  and a first drilling mud outlet  1925   a , an end cap  1935 , a first drilling mud screen access port  1930   a , and an optional transducer subassembly  19100 . 
     As shown in  FIGS. 19 and 28 , the drilling mud inlet  1920  of the drilling mud screen system  19200 ,  28200  may be fluidly connected to a drilling mud outlet  28125  of the transducer subassembly  19110 ,  28100  via a connection. See also  FIG. 33A . Any suitable connection may be used for the drilling mud inlet  1920  and the drilling mud outlet  28125 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  1920  of the drilling mud screen system  19200 ,  28200  may be fluidly connected to a drilling mud outlet  28125  of a transducer subassembly  19100  via a weld. 
       FIG. 20A  illustrates an upper, right side perspective view of an optional transducer subassembly  2000  according to an embodiment of the present invention; and  FIG. 20B  illustrates a side perspective view of the optional transducer subassembly of  FIG. 20A . See also  FIG. 34 . As shown in  FIGS. 20A and 20B , the optional transducer subassembly  2000  has a body  2005  having a first end  2010  and a second end  2015 , an inlet  2020  and an outlet  2025 , a transducer port  2030 , and a transducer  28105 . See e.g.,  FIG. 28 . 
     In an embodiment, the drilling mud inlet  2020  of the optional transducer subassembly  2000  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  2025  may be fluidly connected to, for example, an inlet of a drilling mud screen system via a connection. Any suitable connection may be used for the drilling mud inlet  2020  and the drilling mud outlet  2025 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  2020  of the optional transducer subassembly  2000  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the drilling mud outlet  2025  of the optional transducer assembly  2000  may be fluidly connected to, for example, an inlet of a drilling mud screen system via a weld. 
     In an embodiment, the transducer access port  2030  of the optional transducer subassembly  2000  may be closed with a transducer via a fitting. Any suitable type of transducer may be used. For example, suitable types of transducers include, but are not limited to, displacement transducers, flow rate transducers, pressure transducers, temperature transducers and any combination thereof. Any suitable fitting may be used. For example, suitable fittings include, but are not limited to, pipe fittings. Fittings are well known in the art. In an embodiment, the transducer access port  2030  of the optional transducer subassembly  2000  may be closed with a pressure transducer via a 2-inch 1502 WECO union. 
     In an embodiment, a computing device (such as a rig computer) may include a bus that directly or indirectly couples the following devices: memory, one or more processors, one or more presentation components, one or more input/output (I/O) ports, I/O components, a user interface and a power supply. The computing device may include a variety of computer-readable media. The memory may include computer-storage media in the form of volatile and/or nonvolatile memory. The presentation component(s) present data indications to a user or other device. The user interface allows the user to input/output information to/from the computing device. The one or more I/O ports may allow the computing device to be logically coupled to other devices including a transducer  28105 , and other I/O components, some of which may be built in. See e.g.,  FIG. 28 . Examples of other I/O components include a printer, scanner, wireless device, and the like. 
     In an embodiment, the transducer access port  2030  of the optional transducer subassembly  2000  may be sealed with an end cap via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the body  2005  of the optional transducer subassembly  2000  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the body  2005  may be constructed of an American Iron and Steel Industry (AISI) 4130/75k yield or equivalent material. See e.g.,  FIG. 28 . In an embodiment, the inner surface of the body  2005  may be unpainted. In an embodiment, the outer surface of the body  2005  may be painted. 
     In an embodiment, the body  2005  has a first centerline  2045  and a length  2050 . In an embodiment, the first centerline  2045  extends through the center of the drilling mud inlet  2020  to the drilling mud outlet  2025 . The length  2050  of the body  2005  may be any suitable length. In an embodiment, the length  2050  of the body  2005  may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the length  2050  may be about 12-inches. 
     In an embodiment, the body  2005  has a second centerline  2055 . In an embodiment, the second centerline  2055  extends through the center of the transducer access port  2030  to the first centerline  2045 . 
     In an embodiment, the first centerline  2045  and the second centerline  2055  form a first angle  2060 . In an embodiment, the first angle  2060  may be from about 20-degrees to about 120-degrees, and any range or value there between. In an embodiment, the first angle  2060  may be about 45-degrees. In an embodiment, the first angle  2060  may be about 90-degrees. 
     In an embodiment, the transducer access port  2030  may be offset from a first end  2010  of the body  2005 . The transducer access port  2030  may be offset from a first end  2010  of the body  2005  at any suitable distance. In an embodiment, the second centerline  2055  may be offset from the first end  2010  of the body  2005  from about 6-inches to about 15-inches, and any range or value there between. In an embodiment, the second centerline  2055  may be offset from the first end  2010  of the body  2005  about 7-inches. 
     In an embodiment, the transducer access port  2030  may have any suitable inner diameter. In an embodiment, the inner diameter of the transducer access port  2030  may be from about 1-inches to about 3-inches, and any range or value there between. In an embodiment, the inner diameter of the transducer access port  2030  may be about 2-inches. 
     In an embodiment, the outer diameter of the transducer access port  2030  may be from about 1.5-inches to about 3.5-inches, and any range or value there between. In an embodiment, the outer diameter of the transducer access port  2030  may be about 2.5-inches. 
     In an embodiment, the drilling mud inlet  2020  may have any suitable inner diameter  2065 ; and the drilling mud inlet  2020  may have any suitable outer diameter  2070 . In an embodiment, the inner diameter  2065  of the drilling mud inlet  2020  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  2065  of the drilling mud inlet  2020  may be about 4-inches. 
     In an embodiment, the outer diameter  2070  of the drilling mud inlet  2020  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the outer diameter  2070  of the drilling mud inlet  2020  may be about 5.5-inches. 
     In an embodiment, the drilling mud outlet  2025  may have any suitable inner diameter  2065 ; and the drilling mud outlet  2025  may have any suitable outer diameter  2070 . In an embodiment, the inner diameter  2065  of the drilling mud outlet  2025  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  2065  of the drilling mud outlet  2025  may be about 4-inches. 
     In an embodiment, the outer diameter  2070  of the drilling mud outlet  2025  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the outer diameter  2070  of the drilling mud outlet  2025  may be about 5.5-inches. 
       FIG. 33A  illustrates a cross-sectional view of an exemplary piston-style drilling mud screen system according to an embodiment of the present invention, showing the piston-style mud screen system connected to a transducer subassembly  3300 ;  FIG. 33B  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system connected to the transducer subassembly  3300  of  FIG. 33A , showing the piston-style drilling mud screen system in a closed position;  FIG. 33C  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system connected to the transducer subassembly  3300  of  FIGS. 33A-33B , showing the piston-style drilling mud screen system an unlatched position; and  FIG. 33D  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system connected to the transducer subassembly  3300  of  FIGS. 33A and 33C , showing the piston-style drilling mud screen system an unlatched and rotated position for removal of a drilling mud screen. 
       FIG. 34  illustrates a cross-sectional view of a transducer subassembly connected to a piston-style drilling mud screen system  3400  according to an embodiment of the present invention. 
     Optional Integral Transducer Subassembly for Piston Body 
       FIG. 35A  illustrates a cross-sectional view of an exemplary piston-style drilling mud screen system according to an embodiment of the present invention, showing the piston-style mud screen system integral with a transducer subassembly  3500 ;  FIG. 35B  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system integral with the transducer subassembly  3500  of  FIG. 35A , showing the piston-style drilling mud screen system in a closed position;  FIG. 35C  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system integral with the transducer subassembly  3500  of  FIGS. 35A-35B , showing the piston-style drilling mud screen system an unlatched position; and  FIG. 35D  illustrates an upper, left perspective view of the exemplary piston-style drilling mud screen system integral with the transducer subassembly  3500  of  FIGS. 35A and 35C , showing the piston-style drilling mud screen system an unlatched and rotated position for removal of a drilling mud screen. 
       FIG. 36  illustrates a cross-sectional view of a transducer subassembly integral with a piston-style drilling mud screen system  3600  according to an embodiment of the present invention; and  FIG. 37  illustrates a right perspective view of a transducer subassembly  3700  according to an embodiment of the present invention, showing a quarter-turn breech lock connection. As shown in  FIGS. 36 and 37 , the transducer subassembly  3600 ,  3700  has a body  3605 ,  3705  having a first end  3610 ,  3710  and a second end  3615 ,  3715 , an inlet  3620 ,  3720  and an outlet  3625 ,  3725 , a transducer port  3630 ,  3730 , and a transducer  28105 . See e.g.,  FIG. 28 . 
     In an embodiment, the drilling mud inlet  3620 ,  3720  of the transducer subassembly  3600 ,  3700  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  3625 ,  3725  may be fluidly connected to, for example, an inlet of a drilling mud screen system (e.g., a first drilling mud inlet  3620   a  of the first body  3605   a ) via a connection. Any suitable connection may be used for the drilling mud inlet  3620 ,  3720  and the drilling mud outlet  3625 ,  3725 . For example, suitable connections include, but are not limited to, pipe fittings and quarter-turn breech lock connections. 
     In an embodiment, the drilling mud inlet  3620 ,  3720  of the transducer subassembly  3600 ,  3700  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  3625 ,  3725  may be fluidly connected to, for example, an inlet of a drilling mud screen system via a quarter-turn breech lock connection. See e.g.,  FIG. 37 . 
     In an embodiment, the transducer access port  3630 ,  3730  of the optional transducer subassembly  3600 ,  3700  may be closed with a transducer via a fitting. Any suitable type of transducer may be used. For example, suitable types of transducers include, but are not limited to, displacement transducers, flow rate transducers, pressure transducers, temperature transducers and any combination thereof. Any suitable fitting may be used. For example, suitable fittings include, but are not limited to, pipe fittings. Fittings are well known in the art. In an embodiment, the transducer access port  3630 ,  3730  of the optional transducer subassembly  3600 ,  3700  may be closed with a pressure transducer via a 2-inch 1502 WECO union. 
     In an embodiment, a computing device (such as a rig computer) may include a bus that directly or indirectly couples the following devices: memory, one or more processors, one or more presentation components, one or more input/output (I/O) ports, I/O components, a user interface and a power supply. The computing device may include a variety of computer-readable media. The memory may include computer-storage media in the form of volatile and/or nonvolatile memory. The presentation component(s) present data indications to a user or other device. The user interface allows the user to input/output information to/from the computing device. The one or more I/O ports may allow the computing device to be logically coupled to other devices including a transducer  28105 , and other I/O components, some of which may be built in. See e.g.,  FIG. 28 . Examples of other I/O components include a printer, scanner, wireless device, and the like. 
     In an embodiment, the transducer access port  3630 ,  3730  of the transducer subassembly  3600 ,  3700  may be sealed with an end cap via an O-ring. Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
     In an embodiment, the body  3605 ,  3705  of the transducer subassembly  3600 ,  3700  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel suitable for a drilling mud application. In an embodiment, the body  3605 ,  3705  may be constructed of an American Iron and Steel Industry (AISI) 4130/75k yield or equivalent material. See e.g.,  FIGS. 36 &amp; 37 . In an embodiment, the inner surface of the body  3605 ,  3705  may be unpainted. In an embodiment, the outer surface of the body  3605 ,  3705  may be painted. 
     In an embodiment, the body  3605 ,  3705  has a first centerline  3645  and a length  3650 . In an embodiment, the first centerline  3645  extends through the center of the drilling mud inlet  3620 ,  3720  to the drilling mud outlet  3625 ,  3725 . The length  3650  of the body  3605 ,  3705  may be any suitable length. In an embodiment, the length  3650  of the body  3605 ,  3705  may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the length  3650  may be about 15-inches. 
     In an embodiment, the body  3605 ,  3705  has a second centerline  3655 . In an embodiment, the second centerline  3655  extends through the center of the transducer access port  3630 ,  3730  to the first centerline  3645 . 
     In an embodiment, the first centerline  3645  and the second centerline  3655  form a first angle  3560 . In an embodiment, the first angle  3660  may be from about 20-degrees to about 120-degrees, and any range or value there between. In an embodiment, the first angle  3660  may be about 45-degrees. In an embodiment, the first angle  3660  may be about 90-degrees. 
     In an embodiment, the transducer access port  3630 ,  3730  may be offset from a first end  3610 ,  3710  of the body  3605 ,  3705 . The transducer access port  3630 ,  3730  may be offset from a first end  3610 ,  3710  of the body  3605 ,  3705  at any suitable distance. In an embodiment, the second centerline  3655  may be offset from the first end  3610 ,  3710  of the body  3605 ,  3705  from about 6-inches to about 15-inches, and any range or value there between. In an embodiment, the second centerline  3655  may be offset from the first end  3610 ,  3710  of the body  3605 ,  3705  about 7-inches. 
     In an embodiment, the transducer access port  3630 ,  3730  may have any suitable inner diameter. In an embodiment, the inner diameter of the transducer access port  3630 ,  3730  may be from about 1-inches to about 3-inches, and any range or value there between. In an embodiment, the inner diameter of the transducer access port  3630 ,  3730  may be about 2-inches. 
     In an embodiment, the outer diameter of the transducer access port  3630 ,  3730  may be from about 1.5-inches to about 3.5-inches, and any range or value there between. In an embodiment, the outer diameter of the transducer access port  3630 ,  3730  may be about 2.5-inches. 
     In an embodiment, the drilling mud inlet  3620 ,  3720  may have any suitable inner diameter  3665 ; and the drilling mud inlet  3620 ,  3720  may have any suitable outer diameter  3670 . In an embodiment, the inner diameter  3665  of the drilling mud inlet  3620 ,  3720  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  3665  of the drilling mud inlet  3620 ,  3720  may be about 4-inches. 
     In an embodiment, the outer diameter  3670  of the drilling mud inlet  3620 ,  3720  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the outer diameter  3670  of the drilling mud inlet  3620 ,  3720  may be about 5.5-inches. 
     In an embodiment, the drilling mud outlet  3625 ,  3725  may have any suitable inner diameter  3665 ; and the drilling mud outlet  3625 ,  3725  may have any suitable outer diameter  3670 . In an embodiment, the inner diameter  3665  of the drilling mud outlet  3625 ,  3725  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  3665  of the drilling mud outlet  3625 ,  3725  may be about 4-inches. 
     In an embodiment, the outer diameter  3670  of the drilling mud outlet  3625 ,  3725  may be from about 4.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the outer diameter  3670  of the drilling mud outlet  3625 ,  3725  may be about 5.5-inches. 
     Drilling Mud Screen 
       FIG. 5A  illustrates an upper, cross-sectional view of a drilling mud screen according to an embodiment of the present invention, as discussed above.  FIG. 5B  illustrates a detailed view of A-A of  FIG. 5A ;  FIG. 5C  illustrates a detailed view of B of  FIG. 5A ; and  FIG. 5D  illustrates a detailed view of C of  FIG. 5A .  FIG. 5E  illustrates an upper, right side perspective view of the drilling mud screen of  FIG. 5A . 
     Optional Drilling Mud Screen 
       FIG. 22A  illustrates an end view of an optional drilling mud screen  2200  according to an embodiment of the present invention;  FIG. 22B  illustrates a detailed, cross-sectional view of A-A of  FIG. 22A , showing an optional drilling mud screen insert  22105 , and optional first end retaining ring  22110 , an optional filter length  22115 , and an optional retaining ring  22120 ;  FIG. 22C  illustrates a detailed view of B of  FIG. 22B ;  FIG. 22D  illustrates a detailed, cross-sectional view of C-C of  FIG. 22C ; and  FIG. 22E  illustrates an upper, right perspective view of the drilling mud screen of  FIGS. 22A-22B . 
     As shown in  FIG. 22B , the drilling mud screen  2200  has a body  2205  having a first end  2210  and a second end  2215 , a drilling mud inlet  2220 , a drilling mud outlet  2225 , a filter  2230  and an end cap  2235 . 
     In an embodiment, the drilling mud inlet  2220  may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the drilling mud outlet  2225  may be fluidly connected to an inlet of a vibrator hose via a connection. Any suitable connection may be used for the drilling mud inlet  2220  and the drilling mud outlet  2225 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  2220  may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the drilling mud outlet  2225  may be fluidly connected to an inlet of a vibrator hose via a weld. 
     In an embodiment, the body  2205  of the drilling mud screen  2200  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the body  2205  may be constructed of an AISI 4145 or equivalent material. See e.g.,  FIGS. 5A-5E . In an embodiment, the body  2205  may be constructed of tool steel or equivalent material. 
     In an embodiment, the body  2205  of the drilling mud screen  2200  may have a hardened coating to reduce washing (i.e., erosion) of the screen  2200 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the body  2205  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the body  2205  of the drilling mud screen  2200  has a centerline  2245  and a length  2250 . In an embodiment, the centerline  2245  extends through the center of the drilling mud screen inlet  2220  to the end cap  2235 . The length  2250  of the body  2205  may be any suitable length. In an embodiment, the length  2250  of the body  2205  may be from about 20-inches to about 30-inches, and any range or value there between. In an embodiment, the length  2250  may be about 25-inches. 
     In an embodiment, the drilling mud inlet  2220  of the drilling mud screen  2200  may have any suitable inner diameter  2265 ; and the drilling mud inlet  2220  may have any suitable outer diameter  2270 . In an embodiment, the inner diameter  2265  of the drilling mud inlet  2220  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  2265  of the drilling mud inlet  2220  may be about 3.9-inches. 
     In an embodiment, the outer diameter  2270  of the drilling mud inlet  2220  may be from about 4-inches to about 6-inches, and any range or value there between. In an embodiment, the outer diameter  2270  of the drilling mud inlet  2220  may be about 4-inches. 
     In an embodiment, the body  2205  of the drilling mud screen  2200  has a first portion  2275  and a second portion  2280 . In an embodiment, the first portion  2275  of the body  2205  has a first length  22125 ; and the second portion  2280  of the body  2205  has a second length  22130 . The first portion  2275  and the second portion  2280  may be any suitable length. In an embodiment, the first portion  2275  may have a first length  22125  from about 6-inches to about 10-inches, and any range or value there between; and the second portion  2280  may have a second length  22130  from about 14-inches to about 20-inches, and any range or value there between. In an embodiment, the first portion  2275  may have a first length  22125  of about 7.5-inches; and the second portion  2280  may have a second length  22130  of about 17.5-inches. 
     In an embodiment, the second portion  2280  of the body  2205  has a first section  22135 , a second section  22145  and a third section  22155 . In an embodiment, the first section  22135  has a third length  22140 , the second section  22145  has a fourth length  22150  and the third section  22155  has a fifth length  22160 . The first section  22135 , the second section  22145  and the third section  22155  may be any suitable length. In an embodiment, the first section  22135  maybe up to about 20-25% longer than the second section  22145  and/or the third section  22155 , resulting in increased flow efficiency and decreased erosion. 
     In an embodiment, the first section  22135  may have a third length  22140  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the first section  22135  may have a third length  22140  of about 6-inches. 
     In an embodiment, the second section  22145  may have a fourth length  22150  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the second section  22145  may have a fourth length  22150  of about 5-inches. 
     In an embodiment, the third section  22155  may have a fifth length  22160  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the third section  22155  may have a fifth length  22160  of about 5-inches. 
     In an embodiment, a second portion  2280  of the body  2205  of the drilling mud screen  2200  may have a filter  2230 . In an embodiment, the filter  2230  may comprise a plurality of rods spaced a distance apart to form a filter. In an embodiment, the distance may be less than a particle size (e.g., diameter) desired to be filtered from the drilling mud. Particle filtration is well known in the art. 
     In an embodiment, the filter  2230  may comprise a formed sheet having drilled holes spaced a distance apart to form a filter. In an embodiment, the size of the holes (e.g., diameter) may be less than a particle size (e.g., diameter) desired to be filtered. Particle filtration is well known in the art. 
     In an embodiment, a second portion  2280  of the body  2205  of the drilling mud screen  2200  may have a drilling mud outlet  2225 . In an embodiment, the drilling mud outlet  2225  may comprise a plurality of spaces (i.e., flow passages) between a plurality of rods. In an embodiment, the drilling mud outlet  2225  may comprise a plurality of holes (i.e., flow passages) drilled in a formed sheet. 
     In an embodiment, a first end  2210  of a first portion  2275  of the body  2205  of the drilling mud screen  2200  may have a first inner diameter  2285 ; and a second end  2215  of a second portion  2280  of the body  2205  may have a second inner diameter  2290 . 
     In an embodiment, the first end  2210  of the first portion  2275  may be shaped to accept a puller/installer plate  975  of a drilling mud screen puller/installer tool  800 ,  900 , as discussed below. See e.g.,  FIGS. 5A, 8A &amp; 9A . 
     In an embodiment, the body  2205  and/or a filter  2230  of the drilling mud screen  2200  may have a tapered drilling mud flow path from a larger inner diameter to a smaller inner diameter to reduce washing (i.e., erosion) of the screen  2200 . 
     In an embodiment, the first inner diameter  2285  of the first end  2210  of the body  2205  of the drilling mud screen  2200  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  2285  of the first end  2210  of the body  2205  may be about 3.9-inches. 
       FIG. 22D  illustrates a detailed view of C-C of  FIG. 22C , showing an outlet of a first portion  2275  of the body  2205  and an inlet of the second portion  2280  of the body  2205 . In an embodiment, an inner diameter of an outlet of the first portion  2275  and an inlet of the second portion  2290  of the body  2205  may be from about 2-inches to about 3-inches, and any range or value there between. In an embodiment, the inner diameter of the outlet of the first portion  2275  of the body  2205  and the inlet of the second portion  2290  of the body  2205  may be about 2.5-inches. 
     In an embodiment, the outlet of the first portion  2275  and/or the inlet of the second portion  2290  of the body  2205  may be shaped to accept a rounded end  875 ,  975  of a drilling mud screen puller/installer tool  800 ,  900 . See e.g.,  FIGS. 5B, 8B &amp; 9B . See also  FIGS. 12B, 13B &amp; 29 . In an embodiment, the inlet of the second portion  2290  of the body  2205  may have an inner shoulder to provide a pushing surface for the rounded end  875 ,  975  of the drilling mud screen puller/installer tool  800 ,  900 . Id. 
     In an embodiment, the outlet of the first portion  2275  and/or the inlet of the second portion  2280  of the body  2205  may have a means to engage  2240  a drilling mud screen puller/installer tool  800 ,  900 , as discussed below. See e.g.,  FIGS. 5A, 8A &amp; 9A . The means to engage  2240  may be any suitable means to accept, and provide a pulling surface for, the drilling mud screen puller/installer tool  800 ,  900 . For example, a suitable means to engage  2240  includes, but is not limited to, a “key” opening to rotationally engage an inner shoulder. In an embodiment, the outlet of the first portion  2275  and/or the inlet of the second portion  2290  of the body  2205  may be shaped to accept a puller/installer plate  870 ,  970  of a drilling mud screen puller/installer tool  800 ,  900 . See e.g.,  FIGS. 5B, 8B &amp; 9B . See also  FIGS. 12A, 13A &amp; 29 . In an embodiment, the inlet of the second portion  2290  of the body  2205  may have an inner shoulder to provide a pulling surface for the puller/installer plate  870 ,  970  of the drilling mud screen puller/installer tool  800 ,  900 . Id. 
     In an embodiment, the second inner diameter  2290  of the second end  2215  of the body  2205  of the drilling mud screen  2200  may be from about 2-inches to about 3-inches, and any range or value there between. In an embodiment, the second inner diameter  2290  of the second end  2215  of the body  2205  may be about 2.3-inches. 
     In an embodiment, the outer surface  2295  of the first portion  2275  of the body  2205  of the drilling mud screen  2200  may be adapted to engage one or more shoulders in an inner surface of the body  2205 . In an embodiment, a first shoulder and a second shoulder of the body  2205  may be offset from a first end  2210  of the body  2205 . Cf.  FIGS. 4A &amp; 5A . The first and second shoulders may be offset from the first end  2210  of the body  2205  at any suitable distance. In an embodiment, the first shoulder may be offset from the first end  2210  of the body  2205  from about 4-inches to about 8-inches, and any range or value there between; and the second shoulder may be offset from the first end  2210  of the body  2205  from about 5-inches to about 9-inches, and any range or value there between. In an embodiment, the first shoulder may be offset from the first end  2210  of the body  2205  about 4.8-inches; and the second shoulder may be offset from the first end  2210  of the body  2205  about 6.8-inches. 
     In an embodiment, the outer surface  2295  of the body  2205  of the drilling mud screen  2200  may be sealed against an inner surface of the body  2205  via an O-ring. Cf.  FIGS. 4A &amp; 5A . Any suitable O-ring may be used. For example, suitable O-rings include, but are not limited to, 300 Series O-rings. O-rings are well known in the art. 
       FIG. 22C  illustrates a detailed view of B of  FIG. 22B , showing a detailed view of a groove for an O-ring. In an embodiment, a groove for an O-ring may be offset from a first end  2210  of the body  2205  of the drilling mud screen  2200 . The groove for the O-ring may be offset from the first end  2210  of the body  2205  at any suitable distance. In an embodiment, the groove for the O-ring may be offset from the first end  2210  of the body  2205  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the groove for the O-ring may be offset from the first end  2210  of the body  2205  about 5.7-inches. 
     In an embodiment, the filter  2230  may have a plurality of rods spaced a distance apart to form a filter, or, alternatively, a formed sheet having drilled holes spaced a distance apart to form a filter. In an embodiment, the plurality of rods may be tapered from a larger outer diameter to a smaller outer diameter to encourage drilling mud flow to exit in straight lines through the drilling mud outlet  2225  (i.e., through flow passages between the plurality rods) to reduce washing (i.e., erosion) of the screen  2200 . In an embodiment, the filter  2230  may have a plurality of straight rows of holes drilled in a formed sheet to encourage drilling mud flow to exit in straight rows of strings through the drilling mud outlet  2225  (i.e., through straight flow passages of the drilled holes) to reduce washing (i.e., erosion) of the screen  2200 . 
     In an embodiment, a first end of a filter  2230  may be connected to a second end  2215  of the body  2205  via a connection; and a second end of a filter  2230  may be connected to a first end of the end cap  2235  via a connection. Any suitable connection may be used for the drilling mud inlet  2230 . For example, suitable connections include, but are not limited to, welds. Connections are well known in the art. In an embodiment, the first end of the filter  2230  may be connected to the second end  2215  of the body  2205  via a weld; and the second end of the filter  2230  may be connected to the first end of the end cap  2235  via a weld. 
     In an embodiment, the first end of the filter  2230  may fit into a first recess in the second end  2215  of the body  2205 ; and the second end of the filter may fit into a second recess in the first end of the end cap  2235 . In an embodiment, the first recess and the second recess may be a plurality of recessed holes or a recessed groove. In an embodiment, the first recess and the second recess may be a plurality of recessed holes. 
     In an embodiment, the filter  2230  may be held together with a retaining ring. In an embodiment, the retaining ring may have a plurality of holes to hold the plurality of rods to form the filter  2230 . In an embodiment, the plurality of rods may be connected to the plurality of holes in the retainer ring via a connection. Any suitable connection may be used for the drilling mud inlet  2230 . For example, suitable connections include, but are not limited to, welds. Connections are well known in the art. In an embodiment, the plurality of rods may be connected to the plurality of holes in the retainer ring via a weld. 
     In an embodiment, the filter  2230 , including any retaining rings, of the drilling mud screen  2200  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the filter  2230  may be constructed of 304 stainless steel material. See e.g.,  FIGS. 5A &amp; 5E . In an embodiment, the filter  2230  may be constructed of AISI 4145 or equivalent material. In an embodiment, the filter  2230  may be constructed of D2 tool steel or equivalent material. 
     In an embodiment, the filter  2230  may have a hardened coating to reduce washing (i.e., erosion) of the screen  2200 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the filter  2230  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the end cap  2235  of the drilling mud screen  2200  has an inner surface  2255 . In an embodiment, the inner surface  2255  of the end cap  2235  of the drilling mud screen  200  may redirect the flow to reduce washing (i.e., erosion) of the screen  2200 . In an embodiment, the inner surface  2255  of the end cap  2235  of the drilling mud screen  2200  forms an inverted cone relative to the second end  2215  of the body  2205  of the drilling mud screen  2200  to redirect the flow. In an embodiment, the tip of the inverted cone may have a rounded or squared shape. 
     In an embodiment, the body  2205  of the drilling mud screen  2200  has a centerline  2245  and a length  2250 . In an embodiment, the centerline  2245  extends through the center of the drilling mud screen inlet  2220  to the end cap  2235 . In an embodiment, the centerline  2245  of the body  2205  of the drilling mud screen  2200  and the inner surface  2255  of the end cap  2235  form an angle  2260 . In an embodiment, the angle  2260  may be from about 30-degrees to about 60-degrees, and any range or value there between. In an embodiment, the angle  2260  may be from about 35-degrees to about 45-degrees. 
     In an embodiment, the end cap  2235  of the drilling mud screen  2200  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the end cap  2235  may be constructed of 304 stainless steel material or equivalent material. See e.g.,  FIGS. 5A &amp; 5E . In an embodiment, the end cap  2235  may be constructed of AISI 4155 or equivalent material. In an embodiment, the end cap  2235  may be constructed of tool steel or equivalent material. 
     In an embodiment, the end cap  2235  of the drilling mud screen  2200  may have a hardened coating to reduce washing (i.e., erosion) of the screen  2200 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the end cap  2235  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
       FIG. 22E  illustrates an upper, right side perspective view of the drilling mud screen of  FIGS. 22A-22B . As shown in  FIG. 22E , the drilling mud screen  2200  has a body  2205  having a first end  2210  and a second end  2215 , a drilling mud inlet  2220 , a drilling mud outlet  2225 , a filter  2230  and an end cap  2235 . In an embodiment, the body  2205  of the drilling mud screen  2200  has a first portion  2275  and a second portion  2280 . 
     Optional Drilling Mud Screen Insert 
       FIG. 23  illustrates a cross-sectional view of a mud screen system according to an embodiment of the present invention, showing an optional drilling mud screen insert  23105  inserted into a drilling mud screen  2340 . As shown in  FIG. 23 , the drilling mud screen system  700 ,  1900 ,  2100  has an optional drilling mud screen insert  23105  inserted into a drilling mud screen  2340  to reduce the washing (i.e., erosion) of the drilling mud screen  2340 . In an embodiment, the optional drilling mud screen insert  23105  may be inserted into a first end  510 ,  2210  of the drilling mud screen  2340 . See e.g.,  FIGS. 5 &amp; 22 . In an embodiment, the optional drilling mud screen insert  23105  may be brazed or welded to the drilling mud screen  2340 . 
       FIG. 24A  illustrates an end view of an optional drilling mud screen insert according to an embodiment of the present invention;  FIG. 24B  illustrates a detailed, cross-sectional view of A-A of  FIG. 24A , showing an inlet of the drilling mud screen insert and an outlet of the drilling mud screen insert; and  FIG. 24C  illustrates an upper, right perspective view of the optional drilling mud screen insert of  FIGS. 24A-24B . As shown in  FIG. 24B , the optional drilling mud screen insert  2400  has a body  2405  having a first end  2410  and a second end  2415 , a drilling mud inlet  2420  and a drilling mud outlet  2425 . 
     In an embodiment, the body  2405  of the optional drilling mud screen insert  2400  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the body  2405  may be constructed of an AISI 4145 or equivalent material. See e.g.,  FIGS. 5A-5E . In an embodiment, the body  2405  may be constructed of tool steel or equivalent material. 
     In an embodiment, the body  2405  of the optional drilling mud screen insert  2400  may have a hardened coating to reduce washing (i.e., erosion) of the insert  2400 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the body  2405  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the body  2405  of the optional drilling mud screen insert  2400  has a centerline  2445  and a length  2450 . In an embodiment, the centerline  2445  extends through the center of the drilling mud inlet  2420  to the drilling mud outlet  2425 . The length  2450  of the body  2405  may be any suitable length. In an embodiment, the length  2450  of the body  2405  may be from about 5-inches to about 10-inches, and any range or value there between. In an embodiment, the length  2450  may be about 6.9-inches. 
     In an embodiment, the drilling mud inlet  2420  of the optional drilling mud screen insert  2400  may have any suitable inner diameter  2465 ; and the drilling mud inlet  2420  may have any suitable outer diameter  2470 . In an embodiment, the inner diameter  2465  of the drilling mud inlet  2450  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  2465  of the drilling mud inlet  2420  may be about 3.9-inches. 
     In an embodiment, the outer diameter  2470  of the drilling mud inlet  2420  may be from about 4-inches to about 6-inches, and any range or value there between. In an embodiment, the outer diameter  2470  of the drilling mud inlet  2420  may be about 4-inches. 
     In an embodiment, the drilling mud outlet  2425  of the optional drilling mud screen insert  2400  may have any suitable inner diameter  2468 ; and the drilling mud outlet  2425  may have any suitable outer diameter  2472 . In an embodiment, the inner diameter  2468  of the drilling mud outlet  2425  may be from about 2-inches to about 5-inches, and any range or value there between. In an embodiment, the inner diameter  2468  of the drilling mud outlet  2425  may be about 3-inches. 
     In an embodiment, the outer diameter  2472  of the drilling mud outlet  2425  may be from about 3.5-inches to about 6-inches, and any range or value there between. In an embodiment, the outer diameter  2472  of the drilling mud outlet  2425  may be about 3.5-inches. 
     In an embodiment, the body  2405  of the optional drilling mud screen insert  2400  has a first portion  2475  and a second portion  2480 . In an embodiment, the first portion  2475  of the body  2405  has a first length  2478 ; and the second portion  2480  of the body  2405  has a second length  2482 . The first portion  2475  and the second portion  2480  may be any suitable length. In an embodiment, the first portion  2475  may have a first length  2478  from about 1-inch to about 3-inches, and any range or value there between; and the second portion  2480  may have a second length  2482  from about 3-inches to about 7-inches, and any range or value there between. In an embodiment, the first portion  2475  may have a first length  2478  of about 2-inches; and the second portion  2480  may have a second length  2482  of about 4.9-inches. 
     In an embodiment, the first portion  2475  of the body  2405  may have a first inner diameter  2485  and a second inner diameter  2490 . 
     In an embodiment, the first inner diameter  2485  of the first portion  2475  may have any suitable diameter. In an embodiment, the first inner diameter  2485  of the first portion  2475  may be from about 3-inches to about 5-inches, and any range or value there between. In an embodiment, the first inner diameter  2485  of the first portion  2475  may be about 3.9-inches. 
     In an embodiment, the second inner diameter  2490  of the first portion  2475  may have any suitable diameter. In an embodiment, the second inner diameter  2490  of the first portion  2475  may be from about 2-inches to about 5-inches, and any range or value there between. In an embodiment, the second inner diameter  2490  of the first portion  2475  may be about 3-inches. 
     In an embodiment, an outer surface of the first portion  2475  and an inner surface of the first portion  2475  form an angle  2495  over a third length  24125 . In an embodiment, the angle may be from about 10-degrees to about 20-degrees, and any range or value there between. In an embodiment, the angle  2495  may be about 15-degrees. 
     In an embodiment, the third length  24125  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the third length  24125  may be about 1.5-inches. 
     Optional First End Retaining Ring 
       FIG. 25  illustrates a detailed, cross-sectional view of the optional drilling mud screen  2500 , showing an optional first end retaining ring  25110 . As shown in  FIG. 25 , the optional drilling mud screen  2500  has a body  2505 , a drilling mud outlet  2525 , a filter  2530 , an outer surface of body  2595  and an optional first end retaining ring  25110 . 
     As shown in  FIGS. 22B and 25 , the filter  2230  may be held together with an optional first end retaining ring  25110 . In an embodiment, the optional filter retaining ring  25110  may have a plurality of holes to hold the plurality of rods to form the filter  2230 . In an embodiment, the plurality of rods may be connected to the plurality of holes in the optional filter retainer ring via a connection. Any suitable connection may be used for the drilling mud inlet  2230 . For example, suitable connections include, but are not limited to, welds. Connections are well known in the art. In an embodiment, the plurality of rods may be connected to the plurality of holes in the retainer ring via a weld. 
     In an embodiment, the optional first end retaining ring  25110  of the optional drilling mud screen  2500  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the optional first end retaining ring  25110  may be constructed of an AISI 4145 or equivalent material. See e.g.,  FIGS. 5A-5E . In an embodiment, the optional first end retaining ring  25110  may be constructed of D2 tool steel or equivalent material. 
     In an embodiment, the optional first end retaining ring  25110  of the optional drilling mud screen  2500  may have a hardened coating to reduce washing (i.e., erosion) of the retaining ring  25110 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the optional first end retaining ring  25110  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the optional first end retaining ring  25110  may be modified to reduce an inside surface exit angle between the first portion  2575  and the second portion  2580  of the drilling mud screen  2500 , resulting in increased flow efficiency and decreased erosion. In an embodiment, the exit angle may be about 10-degrees to about 90-degrees, and any range or value there between. In an embodiment, the exit angle may be from about 10-degrees to about 50-degrees. In an embodiment, the exit angle may be about 30-degrees. 
     Optional Filter Retaining Ring 
       FIG. 26A  illustrates a side view of an optional drilling mud screen system  2600  according to an embodiment of the present invention, showing an optional filter length  26115 , and an optional filter retaining ring  26120 ; and  FIG. 26B  illustrates a detailed, cross-sectional view of the optional drilling mud screen system  2600  of  FIG. 26A , showing an optional drilling mud screen insert  26105 , an optional filter length  26115 , and an optional filter retaining ring  26120 . As shown in  FIGS. 26  A and  26 B, the optional drilling mud screen system  2600  has an optional drilling mud screen insert  26105 , an optional filter length  26115 , and an optional retaining ring  26120 . 
     In an embodiment, the optional filter retaining ring  26120  of the optional drilling mud screen  2640  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the optional filter retaining ring  26120  may be constructed of an AISI 4145 or equivalent material. See e.g., FIGS.  5 A- 5 E. In an embodiment, the optional filter retaining ring  26120  may be constructed of D2 tool steel or equivalent material. 
     In an embodiment, the optional filter retaining ring  26120  of the optional drilling mud screen  2640  may have a hardened coating to reduce washing (i.e., erosion) of the optional filter retaining ring  26120 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the optional filter retaining ring  26120  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the optional filter retaining ring  26120  of the optional drilling mud screen  2640  may be modified to reduce inside surface entry and exit angles of the drilling mud screen  2640 , resulting in increased flow efficiency and decreased erosion. In an embodiment, the exit and entry angles may be from about 10-degrees to about 90-degrees, and any range or value there between. In an embodiment, the entry and exit angles may be from about 10-degrees to about 50-degrees. In an embodiment, the entry and exit angles may be about 30-degrees. 
       FIG. 27A  illustrates an end view of an optional filter retaining ring  2700  according to an embodiment of the present invention;  FIG. 27B  illustrates a detailed, cross-sectional view of A-A of  FIG. 27A ; and  FIG. 27C  illustrates a detailed, cross-sectional view of B of  FIG. 27B . 
     As shown in  FIGS. 22B and 27A , the filter  2230  may be held together with an optional filter retaining ring  2700 . In an embodiment, the optional filter retaining ring  2700  may have a plurality of holes  2705  to hold the plurality of rods to form the filter  2230 . In an embodiment, the plurality of rods may be connected to the plurality of holes in the optional filter retainer ring via a connection. Any suitable connection may be used for the drilling mud inlet  2230 . For example, suitable connections include, but are not limited to, welds. Connections are well known in the art. In an embodiment, the plurality of rods may be connected to the plurality of holes in the retainer ring via a weld. 
     In an embodiment, the optional filter retaining rings  2700  of the optional drilling mud screen  2200  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel or tool steel. In an embodiment, the optional filter retaining rings  2700  may be constructed of 304 stainless steel material. See e.g.,  FIGS. 5A &amp; 5E . In an embodiment, the optional filter retaining rings  2700  may be constructed of AISI 4145 or equivalent material. In an embodiment, the optional filter retaining rings  2700  may be constructed of D2 tool steel or equivalent material. 
     In an embodiment, the optional filter retaining ring  2700  of the optional drilling mud screen  2220  may have a hardened coating to reduce washing (i.e., erosion) of the screen  2200 . For example, suitable hardened coatings include, but are not limited to, any Carbide coating or equivalent. In an embodiment, the optional filter retaining rings  2700  may have a Carbide coating with about 6% Cobalt binder or equivalent material. 
     In an embodiment, the optional filter retaining ring  2700  of the optional drilling mud screen  2200  may be modified to reduce inside surface entry and exit angles of the drilling mud screen  2200 , resulting in increased flow efficiency and decreased erosion. In an embodiment, the entry and exit angles may be from about 10-degrees to about 50-degrees, and any range or value there between. In an embodiment, the entry and exit angles may be about 25-degrees or about 30-degrees. 
     Optional Filter Length 
       FIG. 26A  illustrates a side view of an optional drilling mud screen system  2600  according to an embodiment of the present invention, showing an optional filter length  26115 , and an optional filter retaining ring  26120 ; and  FIG. 26B  illustrates a detailed, cross-sectional view of the optional drilling mud screen system  2600  of  FIG. 26A , showing an optional drilling mud screen insert  26105 , an optional filter length  26115 , and an optional filter retaining ring  26120 . As shown in  FIGS. 26  A and  26 B, the optional drilling mud screen system  2600  has an optional drilling mud screen insert  26105 , an optional filter length  26115 , and an optional retaining ring  26120 . 
     As shown in  FIG. 26B , the optional drilling mud screen  2640  has a first portion  2675  and a second portion  2680 . In an embodiment, the first portion  2675  of the optional drilling mud screen  2640  has a first length  26125 ; and the second portion  2680  of the optional drilling mud screen  2640  has a second length  26130 . The first portion  2675  and the second portion  2680  may be any suitable length. In an embodiment, the first portion  2675  may have a first length  26125  from about 6-inches to about 10-inches, and any range or value there between; and the second portion  2680  may have a second length  26130  from about 14-inches to about 20-inches, and any range or value there between. In an embodiment, the first portion  2275  may have a first length  26125  of about 7.5-inches; and the second portion  2680  may have a second length  26130  of about 17.5-inches. 
     In an embodiment, the second portion  2680  of the optional drilling mud screen  2640  has a first section  26135 , a second section  26145  and a third section  26155 . In an embodiment, the first section  26135  has a third length  26140 , the second section  26145  has a fourth length  26150  and the third section  26155  has a fifth length  26160 . The first section  26135 , the second section  26145  and the third section  26155  may be any suitable length. In an embodiment, the first section  26135  of the optional drilling mud screen  2640  may be up to about 20-25% longer than the second section  26145  and/or the third section  26155 , resulting in increased flow efficiency and decreased erosion. 
     In an embodiment, the first section  26135  may have a third length  26140  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the first section  26135  may have a third length  26140  of about 6-inches. 
     In an embodiment, the second section  26145  may have a fourth length  26150  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the second section  26145  may have a fourth length  26150  of about 5-inches. 
     In an embodiment, the third section  26155  may have a fifth length  26160  from about 4-inches to about 8-inches, and any range or value there between. In an embodiment, the third section  26155  may have a fifth length  26160  of about 5-inches. 
     Optional Cementing Configuration 
       FIG. 28  illustrates a cross-sectional view of a drilling mud screen system in a cementing configuration  2800  according to an embodiment of the present invention, showing an optional first transducer subassembly  28100 ′ having an optional transducer  28105 , an optional gate valve  28205  and an optional second transducer subassembly  28100 ″ having an optional low torque plug valve  28110 . As shown in  FIG. 28 , the drilling mud screen system in a cementing configuration  2800  comprises an optional first transducer subassembly  28100 ′ having an optional transducer  28105 , a drilling mud screen system  28200 , an optional gate valve  28300  and an optional second transducer subassembly  28100 ″ having an optional low torque plug valve  28110 . 
     In an embodiment, a first drilling mud inlet  28120 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and a first drilling mud outlet  28125 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to, for example, a drilling mud inlet  28120  of a drilling mud screen system  28200  via a connection. Any suitable connection may be used for the first drilling mud inlet  28120 ′ and the first drilling mud outlet  28125 ′. For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the first drilling mud inlet  28120 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the first drilling mud outlet  28125 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to a drilling mud inlet  28220  of a drilling mud screen system  28200  via a weld. 
     The inlet pressure to the first drilling mud inlet  28120 ′ of the optional first transducer subassembly  28100 ′ may be any suitable pressure. In an embodiment, the inlet pressure may be from about 7500 psi to about 10,000 psi, and any range or value there between. 
     In an embodiment, the transducer access port  28130  of the optional first transducer subassembly  28100 ′ may be closed with an optional transducer  28105  via a fitting. Any suitable type of transducer  28105  may be used. For example, suitable types of transducers include, but are not limited to, displacement transducers, flow rate transducers, pressure transducers, temperature transducers and any combination thereof. Any suitable fitting may be used. For example, suitable fittings include, but are not limited to, pipe fittings. Fittings are well known in the art. In an embodiment, the transducer access port  2030  of the optional transducer subassembly  2000  may be closed with, for example, a pressure transducer  28105  via a 2-inch 1502 WECO union. 
     In an embodiment, a computing device (such as a rig computer) may include a bus that directly or indirectly couples the following devices: memory, one or more processors, one or more presentation components, one or more input/output (I/O) ports, I/O components, a user interface and a power supply. The computing device may include a variety of computer-readable media. The memory may include computer-storage media in the form of volatile and/or nonvolatile memory. The presentation component(s) present data indications to a user or other device. The user interface allows the user to input/output information to/from the computing device. The one or more I/O ports may allow the computing device to be logically coupled to other devices including a transducer  28105 , and other I/O components, some of which may be built in. See e.g.,  FIG. 28 . Examples of other I/O components include a printer, scanner, wireless device, and the like. 
     In an embodiment, pressure information from, for example, a pressure transducer  28105  will allow a driller to know when a drilling mud screen (not shown) in a drilling mud screen system  28200  is “packing off.” For example, the pressure information from the pressure transducer  28105  at the drilling mud inlet  28220  of the drilling mud screen system  28200  may be compared to, for example, pressure information from a pressure transducer on a pressure transducer for a stand pipe. If the pressure decreases at the stand pipe and the pressure increases at the drilling mud inlet  28220  of the drilling mud screen system  28200 , the drilling mud screen (not shown) is likely “packing off” If the pressure decreases or increases at both the stand pipe and the drilling mud screen system, then the problem is likely down hole and not at the drilling mud screen system  28200 . If the problem is at the drilling mud screen system  28200 , the drilling mud screen may be cleaned, repaired or replaced. 
     In an embodiment, a drilling mud inlet  28220  of the drilling mud screen system  28200  may be fluidly connected to, for example, a first drilling mud outlet  28125 ′ of the optional first transducer subassembly  28100 ′ via a connection; and a drilling mud outlet  28225  of the drilling mud screen system  28200  may be fluidly connected to, for example, a drilling mud inlet  28320  of an optional gate valve  28300  via a connection. Any suitable connection may be used for the drilling mud inlet  2820  and the drilling mud outlet  2825 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  28200  of the drilling mud screen system  28200  may be fluidly connected to, for example, a first drilling mud outlet  28120 ′ of the optional first transducer subassembly  28100 ′ via a weld; and the drilling mud outlet  28225  of the drilling mud screen system  28200  may be fluidly connected to, for example, a drilling mud inlet  28320  of the optional gate valve  28300  via a weld. 
     The inlet pressure to the drilling mud inlet  28220  of the drilling mud screen system  28200  may be any suitable pressure. In an embodiment, the inlet pressure may be from about 7500 psi to about 10,000 psi, and any range or value there between. 
     In an embodiment, a drilling mud inlet  28320  of the optional gate valve  28300  may be fluidly connected to, for example, a drilling mud outlet  28220  of the drilling mud screen system  28200  via a connection; and a drilling mud outlet  28325  of the optional gate valve  28300  may be fluidly connected to, for example, a second drilling mud inlet  28120 ″ of the optional second transducer subassembly  28100 ″ via a connection. Any suitable connection may be used for the drilling mud inlet  28320  and the drilling mud outlet  28325 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  28320  of the optional gate valve  28300  may be fluidly connected to, for example, a drilling mud outlet  28220  of a drilling mud screen system  28200  via a weld; and the drilling mud outlet  28225  of the optional gate valve  28300  may be fluidly connected to, for example, a second drilling mud inlet  28125 ″ of the optional second transducer subassembly  28100 ″ via a weld. 
     In an embodiment, a second drilling mud inlet  28120 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, a drilling mud outlet  28325  of the optional gate valve  28300  via a connection; and a second drilling mud outlet  28125 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, an inlet of a vibrator hose via a connection. Any suitable connection may be used for the second drilling mud inlet  28120 ″ and the second drilling mud outlet  28125 ″. For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, a second drilling mud inlet  28120 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, a drilling mud outlet  28325  of the optional gate valve  28300  via a weld; and a second drilling mud outlet  28125 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, an inlet of a vibrator hose via a weld. 
     In an embodiment, an operator may close an optional gate valve  28300  to isolate a drilling mud screen system  28200  (and an upstream drilling mud pump) from cement for a cementing application. The operator may pump cement through an optional low torque plug valve  28110  in an optional second transducer assembly  28100 ″, through a vibrator hose, through a stand pipe, through a top drive and through a casing running tool (CRT). 
     Drilling Mud Screen Puller/Installer Tool 
       FIGS. 8A-8B and 9A-9B  illustrate a drilling mud screen puller/installer tool according to an embodiment of the present invention. The tool permits use of a deep bore in a single-piece body of the drilling mud screen system, and removal of the drilling mud screen from the two-piece body without disassembly of the two-piece body. Further, the tool provides additional force to remove “stuck” drilling mud screens from debris entrapment in the system. 
     Single-Piece Body 
       FIG. 8A  illustrates an upper cross-sectional view of a drilling mud screen puller/installer tool for the exemplary drilling mud screen system of  FIGS. 4A-4C ; and  FIGS. 18A-18B  illustrate an upper cross-sectional view of the drilling mud screen puller/installer tool of  FIG. 8A  for the exemplary drilling mud system of  FIGS. 4A-4C and 14 . 
     As shown in  FIG. 8A , the drilling mud screen puller/installer tool  800  has a body  805  having a first end  810  and a second end  815  and a first length  820 , a shaft  825  having a first end  830  and a second end  835  and a second length  840 , a movable sleeve  845  having a first end  850  and a second end  855  and a third length  860 , a handle  865 , and a puller/installer plate  870 . 
     The first length  820  of the body  805  may be any suitable length. In an embodiment, the first length  820  of the body  805  may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the first length  820  of the body  805  may be from about 18-inches to about 22-inches. 
     The inner diameter of the body  805  may be any suitable diameter. In an embodiment, the inner diameter of the body  805  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the body  805  may be about 1.5-inches. 
     The outer diameter of the body  805  may be any suitable diameter. In an embodiment, the outer diameter of the body  805  may be from about 1.5-inches to about 2.5-inches, and any range or value there between. In an embodiment, the outer diameter of the body  805  may be about 1.9-inches. 
     In an embodiment, the body  805  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the body  805  may be constructed of an American Iron and Steel Industry (AISI) 4140 or equivalent material, stainless steel and combinations thereof. See e.g.,  FIG. 8A . In an embodiment, the surface of the body  805  may be painted. 
     In an embodiment, the body  805  may have a first striker plate  8100 . 
     The striker plate  8100  may be any suitable length. In an embodiment, the length of the striker plate  8100  may be from about 0.3-inches to about 0.6-inches, and any range or value there between. In an embodiment, the length of the striker plate  8100  may be about 0.5-inches. 
     In an embodiment, the inner diameter of the striker plate  8100  may be any suitable diameter. In an embodiment, the inner diameter of the striker plate  8100  may be from about 1-inch to about 1.25-inches, and any range or value there between. In an embodiment, the inner diameter of the striker plate  8100  may be about 1.13-inches. 
     In an embodiment, the outer diameter of the striker plate  8100  may be any suitable diameter. In an embodiment, the outer diameter of the striker plate  8100  may be from about 2-inches to about 2.25-inches, and any range or value there between. In an embodiment, the outer diameter of the striker plate  8100  may be about 2.130-inches. 
     In an embodiment, the striker plate  8100  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the striker plate  8100  may be constructed of stainless steel. See e.g.,  FIG. 8A . In an embodiment, the surface of the striker plate  8100  may be painted. 
     In an embodiment, the striker plate  8100  may be attached to the second end  815  of the body  805  via a connection. Any suitable connection may be used for the striker plate  8100 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the striker plate  8100  may be attached to the second end  815  of the body  805  via a weld. 
     In an embodiment, the second length  840  of the shaft  825  may be any suitable length. In an embodiment, the second length  840  of the shaft  825  may be from about 30-inches to about 50-inches, and any range or value there between. In an embodiment, the second length  840  of the shaft  825  may be from about 40-inches to about 42-inches. 
     The diameter of the shaft  825  may be any suitable diameter. In an embodiment, the diameter of the shaft  825  may be from about 0.75-inches to about 1.5-inches, and any range or value there between. In an embodiment, the diameter of the shaft  825  may be about 1.1-inches. 
     In an embodiment, the shaft  825  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the shaft  825  may be constructed of an American Iron and Steel Industry (AISI) 1018 or equivalent material. See e.g.,  FIG. 8A . In an embodiment, the surface of the shaft  825  may be painted. 
     In an embodiment, the third length  860  of the movable sleeve  845  may be any suitable length. In an embodiment, the third length  860  of the movable sleeve  845  may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the third length  860  of the movable sleeve  845  may be from about 20-inches to about 22-inches. 
     The inner diameter of the movable sleeve  845  may be any suitable diameter. In an embodiment, the inner diameter of the movable sleeve  845  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the movable sleeve  845  may be about 1.4-inches. 
     The outer diameter of the movable sleeve  845  may be any suitable diameter. In an embodiment, the outer diameter of the movable sleeve  845  may be from about 1.5-inches to about 2.5-inches, and any range or value there between. In an embodiment, the outer diameter of the movable sleeve  845  may be about 1.9-inches. 
     In an embodiment, the movable sleeve  845  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the movable sleeve  845  may be constructed of an American Iron and Steel Industry (AISI) 4140 or equivalent material. See e.g.,  FIG. 8A . In an embodiment, the surface of the movable sleeve  845  may be painted. 
     In an embodiment, the first end  810  of the body  805  may have a rounded end  875  having a first end and a second end; the second end  815  of the body  805  may have a striker plate  8100 . 
     The length of the rounded end  875  may be any suitable length. In an embodiment, the length of the rounded end  875  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the length of the rounded end  875  may be about 1.3-inches. 
     The inner diameter of the rounded end  875  may be any suitable diameter. In an embodiment, the inner diameter of the rounded end  875  may be from about 1.5-inches to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the rounded end  875  may be about 1.7-inches. 
     The outer diameter of the rounded end  875  may be any suitable diameter. In an embodiment, the outer diameter of the rounded end  875  may be from about 2.5-inches to about 3.5-inches, and any range or value there between. In an embodiment, the outer diameter of the rounded end  875  may be about 3-inches. 
     In an embodiment, the first end of the rounded end  875  may have a rounded edge. See e.g.,  FIG. 8 . The radius of the rounded edge may be any suitable radius. In an embodiment, the radius may be from about 0.35-inches to about 0.4-inches, and any range or value there between. In an embodiment, the radius may be about 0.375-inches. 
     In an embodiment, the rounded end  875  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the rounded end  875  may be painted. 
     In an embodiment, the second end of the rounded end  875  may be attached to the first end  810  of the body  805  via a connection. Any suitable connection may be used for the second end of the rounded end  875 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the second end of the rounded end  875  may be attached to the first end  810  of the body  805  via a weld. 
     In an embodiment, the body  805  may have a sleeve body  880  having a first end  885  and a second end  890  and a fourth length  895 , and a first striker plate  8100 . 
     The fourth length  895  of the sleeve body  880  may be any suitable length. In an embodiment, the fourth length  895  of the sleeve body  880  may be from about 10-inches to about 40-inches, and any range or value there between. In an embodiment, the fourth length  895  of the sleeve body  880  may be from about 20-inches to about 22-inches. 
     The inner diameter of the sleeve body  880  may be any suitable diameter. In an embodiment, the inner diameter of the sleeve body  880  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the sleeve body  880  may be about 1.4-inches. 
     The outer diameter of the sleeve body  880  may be any suitable diameter. In an embodiment, the outer diameter of the sleeve body  880  may be from about 1.5-inches to about 2.5-inches, and any range or value there between. In an embodiment, the outer diameter of the sleeve body  880  may be about 1.9-inches. 
     In an embodiment, the sleeve body  880  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the sleeve body  880  may be constructed of an American Iron and Steel Industry (AISI) 4140 or equivalent material, stainless steel and combinations thereof. See e.g.,  FIG. 8A . In an embodiment, the surface of the sleeve body  880  may be painted. 
     In an embodiment, the rounded end  875  may be attached to the first end  885  of the sleeve body  880  via a connection. Any suitable connection may be used for the rounded end  875 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the rounded end  875  may be attached to the first end  885  of the sleeve body  880  via a weld. 
     In an embodiment, the striker plate  8100  may be attached to the second end  890  of the sleeve body  880  via a connection. Any suitable connection may be used for the striker plate  8100 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the striker plate  8100  may be attached to the second end  890  of the sleeve body  880  via a weld. 
     In an embodiment, the second end  815  of the body  805  may be attached to the first end  830  of the shaft  825  via a connection. Any suitable connection may be used for the second end  815  of the body  805 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the second end  815  of the body  805  may be attached to the first end  830  of the shaft  825  via a weld. 
     In an embodiment, the movable sleeve  845  may be disposed around the shaft  825 . 
     In an embodiment, a handle  865  may be attached to the movable sleeve  845  via a connection. Any suitable connection may be used for the handle  865 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the handle  865  may be attached to the movable sleeve  845  via a weld. 
     The handle  865  may be any suitable handle to move the moveable sleeve  845  back and forth. Suitable handles  865  include, but are not limited to, one or more hand holds extending from the movable sleeve  845 , a hand ring or hand wheel surrounding the movable sleeve  845 , and combinations thereof. 
     The diameter of the one or more hand holds of the handle  865  may be any suitable diameter. In an embodiment, the diameter of the one or more hand holds of the handle  865  may be from 0.3-inch to about 1.0-inch, and any range or value there between. In an embodiment, the diameter of the one or more hand holds of the handle  865  may be about 0.5-inch. 
     In an embodiment, the handle  865  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the handle  865  may be constructed of an American Iron and Steel Industry (AISI) 1018 or equivalent material. See e.g.,  FIG. 8A . In an embodiment, the surface of the handle  865  may be painted. 
     In an embodiment, the handle  865  may be attached to the movable sleeve  845  via a connection. Any suitable connection may be used for the handle  865 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the handle  865  may be attached to the movable sleeve  845  via a weld. 
     In an embodiment, the puller/installer plate  870  may be attached to a second end  835  of the shaft  825  via a connection. Any suitable connection may be used for the puller/installer plate  870 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the puller/installer plate  870  may be attached to the second end  835  of the shaft  825  via a weld. 
     The length of the puller/installer plate  870  may be any suitable length. In an embodiment, the length of the puller/installer plate  870  may be from about 0.5-inch to about 1-inch, and any range or value there between. In an embodiment, the length of the puller/installer plate  870  may be about 0.725-inch. 
     The diameter of the puller/installer plate  870  may be any suitable diameter. In an embodiment, the diameter of the puller/installer plate  870  may be from about 2-inches to about 2.5-inches, and any range or value there between. In an embodiment, the diameter of the puller/installer plate  870  may be about 2.3-inches. 
     In an embodiment, the puller/installer plate  870  of the drilling mud screen puller/installer tool  800  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the puller/installer plate  870  may be constructed of a stainless steel. See e.g.,  FIG. 8A . In an embodiment, the surface of the puller/installer plate  870  may be painted. 
     In an embodiment, the puller/installer plate  870  may have a means to engage  8105  a drilling mud screen  500  of the drilling mud screen system  400 . The means to engage  875  may be any suitable means to engage  8105  the drilling mud screen  500 . For example, a suitable means to engage  8105  includes, but is not limited to, one or more extensions to fit an outlet of the first portion  575  and/or an inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and to engage a shoulder outside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and/or to rotationally engage a shoulder inside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500 . Cf.  FIGS. 5B &amp; 8B . See also FIGS.  12 A- 12 B. In an embodiment, the puller/installer plate  870  may have one or more extensions to fit an outlet of the first portion  575  and/or an inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and to engage a shoulder outside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and/or to rotationally engage a shoulder inside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500 . Id. 
     In an embodiment, the means to engage  8105  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the means to engage  8105  may be constructed of a stainless steel or equivalent material. See e.g.,  FIG. 8A . In an embodiment, the means to engage  8105  may be painted. 
     Two-Piece Body 
       FIG. 9A  illustrates an upper cross-sectional view of a drilling mud screen puller/installer tool for the exemplary drilling mud screen system of  FIG. 7 . As shown in  FIG. 9 , the drilling mud screen puller/installer tool  900  has a body  905  having a first end  910  and a second end  915  and a first length  920 , a shaft  925  having a first end  930  and a second end  935  and a second length  940 , a movable sleeve  945  having a first end  950  and a second end  955  and a third length  960 , a handle  965 , and a puller/installer plate  970 . 
     The first length  920  of the body  905  may be any suitable length. In an embodiment, the first length  920  of the body  905  may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the first length  920  of the body  905  may be from about 18-inches to about 22-inches. 
     The inner diameter inner diameter of the body  905  may be any suitable diameter. In an embodiment, the inner diameter of the body  905  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the body  905  may be about 1.5-inches. 
     The outer diameter of the body  905  may be any suitable diameter. In an embodiment, the outer diameter of the body  905  may be from about 1.5-inches to about 2.5-inches, and any range or value there between. In an embodiment, the outer diameter of the body  905  may be about 1.9-inches. 
     In an embodiment, the body  905  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the body  905  may be constructed of an American Iron and Steel Industry (AISI) 4140 or equivalent material, stainless steel and combinations thereof. See e.g.,  FIG. 9A . In an embodiment, the surface of the body  905  may be painted. 
     In an embodiment, the body  905  may have a striker plate  9100 . 
     The striker plate  9100  may be any suitable length. In an embodiment, the length of the striker plate  9100  may be from about 0.3-inch to about 0.6-inch, and any range or value there between. In an embodiment, the length of the striker plate  9100  may be about 0.5-inch. 
     In an embodiment, the inner diameter of the striker plate  9100  may be any suitable diameter. In an embodiment, the inner diameter of the striker plate  9100  may be from about 1-inch to about 1.25-inches, and any range or value there between. In an embodiment, the inner diameter of the striker plate  9100  may be about 1.13-inches. 
     In an embodiment, the outer diameter of the striker plate  9100  may be any suitable diameter. In an embodiment, the outer diameter of the striker plate  9100  may be from about 2-inches to about 2.25-inches, and any range or value there between. In an embodiment, the outer diameter of the striker plate  9100  may be about 2.130-inches. 
     In an embodiment, the striker plate  9100  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the striker plate  9100  may be constructed of stainless steel. See e.g.,  FIG. 9A . In an embodiment, the surface of the striker plate  9100  may be painted. 
     In an embodiment, the striker plate  9100  may be attached to the second end  915  of the body  905  via a connection. Any suitable connection may be used for the striker plate  9100 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the striker plate  9100  may be attached to the second end  915  of the body  905  via a weld. 
     In an embodiment, the second length  940  of the shaft  925  may be any suitable length. In an embodiment, the second length  940  of the shaft  925  may be from about 40-inches to about 60-inches, and any range or value there between. In an embodiment, the second length  940  of the shaft  925  may be from about 50-inches to about 52-inches. 
     The diameter of the shaft  925  may be any suitable diameter. In an embodiment, the diameter of the shaft  925  may be from about 0.75-inch to about 1.5-inches, and any range or value there between. In an embodiment, the diameter of the shaft  925  may be about 1.1-inches. 
     In an embodiment, the shaft  925  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the shaft  925  may be constructed of an American Iron and Steel Industry (AISI) 1018 or equivalent material. See e.g.,  FIG. 9A . In an embodiment, the surface of the shaft  925  may be painted. 
     In an embodiment, the third length  960  of the movable sleeve  945  may be any suitable length. In an embodiment, the third length  960  of the movable sleeve  945  may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the third length  960  of the movable sleeve  945  may be from about 20-inches to about 22-inches. 
     The inner diameter of the movable sleeve  945  may be any suitable diameter. In an embodiment, the inner diameter of the movable sleeve  945  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the movable sleeve  945  may be about 1.4-inches. 
     The outer diameter of the movable sleeve  945  may be any suitable diameter. In an embodiment, the outer diameter of the movable sleeve  945  may be from about 1.5-inches to about 2.5-inches, and any range or value there between. In an embodiment, the outer diameter of the movable sleeve  945  may be about 1.9-inches. 
     In an embodiment, the movable sleeve  945  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the movable sleeve  945  may be constructed of an American Iron and Steel Industry (AISI) 4140 or equivalent material. See e.g.,  FIG. 9A . In an embodiment, the surface of the movable sleeve  945  may be painted. 
     In an embodiment, the first end  910  of the body  905  may have a rounded end  975  having a first end and a second end; the second end  915  of the body  905  may have a striker plate  9100 . 
     The length of the rounded end  975  may be any suitable length. In an embodiment, the length of the rounded end  975  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the length of the rounded end  975  may be about 1.3-inches. 
     The inner diameter of the rounded end  975  may be any suitable diameter. In an embodiment, the inner diameter of the rounded end  975  may be from about 1.5-inches to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the rounded end  975  may be about 1.7-inches. 
     The outer diameter of the rounded end  975  may be any suitable diameter. In an embodiment, the outer diameter of the rounded end  975  may be from about 2.5-inches to about 3.5-inches, and any range or value there between. In an embodiment, the outer diameter of the rounded end  975  may be about 3-inches. 
     In an embodiment, the first end of the rounded end  975  may have a rounded edge. See e.g.,  FIG. 9A . The radius of the rounded edge may be any suitable radius. In an embodiment, the radius may be from about 0.35-inch to about 0.4-inch, and any range or value there between. In an embodiment, the radius may be about 0.375-inch. 
     In an embodiment, the rounded end  975  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the rounded end  975  may be painted. 
     In an embodiment, the second end of the rounded end  975  may be attached to the first end  910  of the body  905  via a connection. Any suitable connection may be used for the second end of the rounded end  975 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the second end of the rounded end  975  may be attached to the first end  910  of the body  905  via a weld. 
     In an embodiment, the body  905  may have a sleeve body  980  having a first end  985  and a second end  990  and a fourth length  995 , and a striker plate  9100 . 
     The fourth length  995  of the sleeve body  980  may be any suitable length. In an embodiment, the fourth length  995  of the sleeve body  980  may be from about 10-inches to about 40-inches, and any range or value there between. In an embodiment, the fourth length  995  of the sleeve body  980  may be from about 18-inches to about 20-inches. 
     The inner diameter of the sleeve body  980  may be any suitable diameter. In an embodiment, the inner diameter of the sleeve body  980  may be from about 1-inch to about 2-inches, and any range or value there between. In an embodiment, the inner diameter of the sleeve body  980  may be about 1.4-inches. 
     The outer diameter of the sleeve body  980  may be any suitable diameter. In an embodiment, the outer diameter of the sleeve body  980  may be from about 1.5-inches to about 2.5-inches, and any range or value there between. In an embodiment, the outer diameter of the sleeve body  980  may be about 1.9-inches. 
     In an embodiment, the sleeve body  980  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the sleeve body  980  may be constructed of an American Iron and Steel Industry (AISI) 4140 or equivalent material, stainless steel and combinations thereof. See e.g.,  FIG. 9A . In an embodiment, the surface of the sleeve body  980  may be painted. 
     In an embodiment, the rounded end  975  may be attached to the first end  985  of the sleeve body  880  via a connection. Any suitable connection may be used for the rounded end  975 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the rounded end  975  may be attached to the first end  985  of the sleeve body  980  via a weld. 
     In an embodiment, the striker plate  9100  may be attached to the second end  990  of the sleeve body  980  via a connection. Any suitable connection may be used for the striker plate  9100 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the striker plate  9100  may be attached to the second end  990  of the sleeve body  980  via a weld. 
     In an embodiment, the second end  915  of the body  905  may be attached to the first end  930  of the shaft  925  via a connection. Any suitable connection may be used for the second end  915  of the body  905 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the second end  915  of the body  905  may be attached to the first end  930  of the shaft  925  via a weld. 
     In an embodiment, the movable sleeve  945  may be disposed around the shaft  925 . 
     In an embodiment, a handle  965  may be attached to the movable sleeve  945  via a connection. Any suitable connection may be used for the handle  965 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the handle  965  may be attached to the movable sleeve  945  via a weld. 
     The handle  965  may be any suitable handle to move the moveable sleeve  945  back and forth. For example, suitable handles  965  include, but are not limited to, one or more hand holds extending from the movable sleeve  945 , a hand ring or hand wheel surrounding the movable sleeve  945 , and combinations thereof. 
     The diameter of the one or more hand holds of the handle  965  may be any suitable diameter. In an embodiment, the diameter of the one or more hand holds of the handle  965  may be from 0.3-inch to about 1.0-inch, and any range or value there between. In an embodiment, the diameter of the one or more hand holds of the handle  965  may be about 0.5-inch. 
     In an embodiment, the handle  965  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the handle  965  may be constructed of an American Iron and Steel Industry (AISI) 1018 or equivalent material. See e.g.,  FIG. 9A . In an embodiment, the surface of the handle  965  may be painted. 
     In an embodiment, the handle  965  may be attached to the movable sleeve  945  via a connection. Any suitable connection may be used for the handle  965 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the handle  965  may be attached to the movable sleeve  945  via a weld. 
     In an embodiment, the puller/installer plate  970  may be attached to a second end  935  of the shaft  925  via a connection. Any suitable connection may be used for the puller/installer plate  970 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the puller/installer plate  970  may be attached to the second end  935  of the shaft  925  via a weld. 
     The length of the puller/installer plate  970  may be any suitable length. In an embodiment, the length of the puller/installer plate  970  may be from about 0.5-inch to about 1-inch, and any range or value there between. In an embodiment, the length of the puller/installer plate  970  may be about 0.725-inch. 
     The diameter of the puller/installer plate  970  may be any suitable diameter. In an embodiment, the diameter of the puller/installer plate  970  may be from about 2-inches to about 2.5-inches, and any range or value there between. In an embodiment, the diameter of the puller/installer plate  970  may be about 2.3-inches. 
     In an embodiment, the puller/installer plate  970  of the drilling mud screen puller/installer tool  900  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the puller/installer plate  970  may be constructed of a stainless steel. See e.g.,  FIG. 9A . In an embodiment, the surface of the puller/installer plate  970  may be painted. 
     In an embodiment, the puller/installer plate  970  may have a means to engage  9105  a drilling mud screen  500  of the drilling mud screen system  400 . The means to engage  975  may be any suitable means to engage  9105  the drilling mud screen  500 . For example, a suitable means to engage  9105  includes, but is not limited to, one or more extensions to fit an outlet of the first portion  575  and/or an inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and to engage a shoulder outside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and/or to rotationally engage a shoulder inside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500 . Cf.  FIGS. 5B &amp; 8B . See also  FIGS. 13A-13B . In an embodiment, the puller/installer plate  970  may have one or more extensions to fit an outlet of the first portion  575  and/or an inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and to engage a shoulder outside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500  and/or to rotationally engage a shoulder inside the inlet of the second portion  580  of the body  505  of the drilling mud screen  500 . Id. 
     In an embodiment, the means to engage  9105  may be constructed of any suitable material. For example, suitable materials include, but are not limited to, any alloy steel. In an embodiment, the means to engage  9105  may be constructed of a stainless steel or equivalent material. See e.g.,  FIG. 9A . In an embodiment, the means to engage  9105  may be painted. 
     Optional Drilling Mud Screen Installer/Puller Tool 
     Single-Piece Body 
     In an embodiment, the drilling mud screen puller/installer tool  800  has a body  805  having a first end  810  and a second end  815  and a first length  820 , a shaft  825  having a first end  830  and a second end  835  and a second length  840 , a movable sleeve  845  having a first end  850  and a second end  855  and a third length  860 , a handle  865 , an optional stop plate (not shown) and a puller/installer plate  870 . Cf.  FIG. 29 . In an embodiment, the optional stop plate (not shown) on the shaft  825  of the puller/installer tool  800  indicates that the puller/installer tool  800  (and, therefore, the drilling mud screen  500 ) is fully inserted into the drilling mud screen system  800  when the optional stop plate (not shown) contacts the first end  810  of the body  805  of the system  800 . 
     In an embodiment, an optional groove or painted line may be used instead of the optional stop plate on the shaft  825  of the puller/installer tool  800 . In an embodiment, the optional groove or painted line (not shown) on the shaft  825  of the puller/installer tool  800  indicates that the puller/installer tool  800  (and, therefore, the drilling mud screen  500 ) is fully inserted into the drilling mud screen system  800  when the optional groove or painted line (not shown) lines up with the first end  810  of the body  805  of the system  800 . 
     Two-Piece Body 
       FIG. 29  illustrates a cross-sectional view of the exemplary drilling mud tool of  FIG. 9A  inserting the drilling mud screen of  FIG. 5 or 22  into the exemplary drilling mud screen system of  FIG. 7A or 21B , showing an optional stop plate. As shown in  FIG. 29 , the drilling mud screen puller/installer tool  900  has a body  905  having a first end  910  and a second end  915  and a first length  920 , a shaft  925  having a first end  930  and a second end  935  and a second length  940 , a movable sleeve  945  having a first end  950  and a second end  955  and a third length  960 , a handle  965 , an optional stop plate  29400  and a puller/installer plate  970 . In an embodiment, the optional stop plate  29400  on the shaft  925  of the puller/installer tool  900  indicates that the puller/installer tool  900  (and, therefore, the drilling mud screen  500  or  2200 ) is fully inserted into the drilling mud screen system  700  or  2100  when the optional stop plate  29400  contacts the first end  710   a  or  2110   a  of the first body  705   a  or  2105   a  of the system  700  or  2100 . 
     In an embodiment, an optional groove or painted line may be used instead of the optional stop plate  29400  on the shaft  925  of the puller/installer tool  900 . In an embodiment, the optional groove or painted line (not shown) on the shaft  925  of the puller/installer tool  900  indicates that the puller/installer tool  900  (and, therefore, the drilling mud screen  500  or  2200 ) is fully inserted into the drilling mud screen system  700  or  2100  when the optional groove or painted line (not shown) lines up with the first end  710   a  or  2110   a  of the first body  705   a  or  2105   a  of the system  700  or  2100 . 
     Method of Using Drilling Mud Screen System 
       FIG. 10  illustrates a flow diagram for a method of using a drilling mud screen system, as discussed above. As shown in  FIG. 10 , the method of using a drilling mud screen system  1000  comprises stopping a drilling mud pump to stop flow of drilling mud  1005 , fluidly connecting a drilling mud inlet of a drilling mud screen system downstream of an outlet to the drilling mud pump  1010 , fluidly connecting a drilling mud outlet of the drilling mud screen system upstream of an outlet of a stand pipe  1015 , and starting the drilling mud pump to flow drilling mud through the drilling mud screen system  1020 . 
     In an embodiment, the drilling mud inlet  120 ,  220 ,  320 ,  400 ,  620 ,  720 ,  3020  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  3000  may be fluidly connected to a high pressure outlet of the drilling mud pump via a connection. See also  FIGS. 14, 19, 21, 23 &amp; 26 . The inlet pressure to the drilling mud inlet  120 ,  220 ,  320 ,  400 ,  620 ,  720 ,  3020  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  3000  may be any suitable pressure. In an embodiment, the inlet pressure may be from about 7500 psi to about 10,000 psi, and any range or value there between. 
     In an embodiment, the drilling mud outlet  125 ,  225 ,  325 ,  425 ,  625 ,  725 ,  3025  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  3000  may be fluidly connected to an inlet of a vibrator hose to the standpipe via a connection. 
     In an embodiment, the drilling mud inlet  120 ,  220 ,  320 ,  400 ,  620 ,  720 ,  3020  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  3000  may be fluidly connected to an outlet of a vibrator hose to a standpipe via a connection. In an embodiment, the drilling mud outlet  125 ,  225 ,  325 ,  425 ,  625 ,  725 ,  3025  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  3000  may be fluidly connected to an inlet of the standpipe via a connection. 
     In an embodiment, the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  3000  may be fluidly connected at any point in the standpipe via a connection. 
     Optional Monitoring Configuration 
       FIG. 10  illustrates a flow diagram for a method of using a drilling mud screen system, as discussed above. As shown in  FIG. 10 , the method of using a drilling mud screen system  1000  comprises stopping a drilling mud pump to stop flow of drilling mud  1005 , fluidly connecting a drilling mud inlet of a drilling mud screen system downstream of an outlet to the drilling mud pump  1010 , fluidly connecting a drilling mud outlet of the drilling mud screen system upstream of an outlet of a stand pipe  1015 , and starting the drilling mud pump to flow drilling mud through the drilling mud screen system  1020 . 
     In an embodiment, step  1010  comprises fluidly connecting a drilling mud inlet of a transducer subassembly downstream of an outlet to the drilling mud pump; and fluidly connecting a drilling mud inlet of a drilling mud screen system downstream of a drilling mud outlet to the transducer subassembly. 
     As shown in  FIGS. 19 and 28 , the drilling mud inlet  1920  of the drilling mud screen system  19200 ,  28200  may be fluidly connected to a drilling mud outlet  28125  of the transducer subassembly  19110 ,  28100  via a connection. Any suitable connection may be used for the drilling mud inlet  1920  and the drilling mud outlet  28125 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  1920  of the drilling mud screen system  19200 ,  28200  may be fluidly connected to a drilling mud outlet  28125  of a transducer subassembly  19100  via a weld. 
     In an embodiment, the method of using a drilling mud screen system  1000  further comprises monitoring a transducer of the transducer subassembly for property information (e.g., displacement, flow rate, pressure, and/or temperature) at the drilling mud screen system. 
     In an embodiment, a computing device (such as a rig computer) may include a bus that directly or indirectly couples the following devices: memory, one or more processors, one or more presentation components, one or more input/output (I/O) ports, I/O components, a user interface and a power supply. The computing device may include a variety of computer-readable media. The memory may include computer-storage media in the form of volatile and/or nonvolatile memory. The presentation component(s) present data indications to a user or other device. The user interface allows the user to input/output information to/from the computing device. The one or more I/O ports may allow the computing device to be logically coupled to other devices including a transducer  28105 , and other I/O components, some of which may be built in. See e.g.,  FIG. 28 . Examples of other I/O components include a printer, scanner, wireless device, and the like. 
     In an embodiment, the method of using a drilling mud screen system  1000  further comprises using the property information (e.g., displacement, flow rate, pressure, and/or temperature) from the transducer of the transducer subassembly to determine a status of the drilling mud screen system. In an embodiment, the method further comprises using the information to determine when to clean, repair or replace the drilling mud screen in the drilling mud screen system. 
     In an embodiment, pressure information from, for example, a pressure transducer  28105  will allow a driller to know when a drilling mud screen  1940  in a drilling mud screen system  19200 ,  28200  is “packing off.” For example, the pressure information from the pressure transducer  28105  at the drilling mud inlet  1920  of the drilling mud screen system  19200 ,  28200  may be compared to, for example, pressure information from a pressure transducer on a pressure transducer for a stand pipe. If the pressure decreases at the stand pipe and the pressure increases at the drilling mud inlet  1920  of the drilling mud screen system  19200 ,  28200 , the drilling mud screen  1940  is likely “packing off” If the pressure decreases or increases at both the stand pipe and the drilling mud screen system, then the problem is likely down hole and not at the drilling mud screen system  19200 ,  28200 . If the problem is at the drilling mud screen system  19200 ,  28200 , the drilling mud screen  1940  may be cleaned, repaired or replaced. 
     Optional Cementing Configuration 
       FIG. 10  illustrates a flow diagram for a method of using a drilling mud screen system, as discussed above. As shown in  FIG. 10 , the method of using a drilling mud screen system  1000  comprises stopping a drilling mud pump to stop flow of drilling mud  1005 , fluidly connecting a drilling mud inlet of a drilling mud screen system downstream of an outlet to the drilling mud pump  1010 , fluidly connecting a drilling mud outlet of the drilling mud screen system upstream of an outlet of a stand pipe  1015 , and starting the drilling mud pump to flow drilling mud through the drilling mud screen system  1020 . 
     In an embodiment, step  1010  comprises fluidly connecting a first drilling mud inlet of a first transducer subassembly downstream of an outlet to the drilling mud pump; and fluidly connecting a first drilling mud inlet of a drilling mud screen system downstream of an outlet to the first transducer subassembly. 
     In an embodiment, step  1015  comprises fluidly connecting a drilling mud outlet of the drilling mud screen system upstream of a drilling mud inlet of a gate valve, fluidly connecting a drilling mud outlet of the gate valve to a second drilling mud inlet to a second transducer subassembly, and fluidly connecting a second drilling mud outlet of the second transducer subassembly upstream of an outlet of a stand pipe. 
     As shown in  FIG. 28 , the first drilling mud inlet  28120 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to, for example, an outlet of a drilling mud pump via a connection; and the first drilling mud outlet  28125 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to, for example, the drilling mud inlet  28120  of the drilling mud screen system  28200  via a connection. Any suitable connection may be used for the first drilling mud inlet  28120 ′ and the first drilling mud outlet  28125 ′. For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the first drilling mud inlet  28120 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to, for example, an outlet of a drilling mud pump via a weld; and the first drilling mud outlet  28125 ′ of the optional first transducer subassembly  28100 ′ may be fluidly connected to the drilling mud inlet  28220  of the drilling mud screen system  28200  via a weld. 
     The inlet pressure to the first drilling mud inlet  28120 ′ of the optional first transducer subassembly  28100 ′ may be any suitable pressure. In an embodiment, the inlet pressure may be from about 7500 psi to about 10,000 psi, and any range or value there between. 
     In an embodiment, a computing device (such as a rig computer) may include a bus that directly or indirectly couples the following devices: memory, one or more processors, one or more presentation components, one or more input/output (I/O) ports, I/O components, a user interface and a power supply. The computing device may include a variety of computer-readable media. The memory may include computer-storage media in the form of volatile and/or nonvolatile memory. The presentation component(s) present data indications to a user or other device. The user interface allows the user to input/output information to/from the computing device. The one or more I/O ports may allow the computing device to be logically coupled to other devices including a transducer  28105 , and other I/O components, some of which may be built in. See e.g.,  FIG. 28 . Examples of other I/O components include a printer, scanner, wireless device, and the like. 
     In an embodiment, pressure information from, for example, a pressure transducer  28105  will allow a driller to know when a drilling mud screen  1940  in a drilling mud screen system  28200  is “packing off” For example, the pressure information from the pressure transducer  28105  at the drilling mud inlet  28220  of the drilling mud screen system  28200  may be compared to, for example, pressure information from a pressure transducer on a pressure transducer for a stand pipe. If the pressure decreases at the stand pipe and the pressure increases at the drilling mud inlet  28220  of the drilling mud screen system  28200 , the drilling mud screen  1940  is likely “packing off” If the pressure decreases or increases at both the stand pipe and the drilling mud screen system, then the problem is likely down hole and not at the drilling mud screen system  28200 . If the problem is at the drilling mud screen system  28200 , the drilling mud screen  1940  may be cleaned, repaired or replaced. 
     In an embodiment, the drilling mud inlet  28220  of the drilling mud screen system  28200  may be fluidly connected to, for example, the first drilling mud outlet  28125 ′ of the optional first transducer subassembly  28100 ′ via a connection; and a drilling mud outlet  28225  of the drilling mud screen system  28200  may be fluidly connected to, for example, the drilling mud inlet  28320  of the optional gate valve  28300  via a connection. Any suitable connection may be used for the drilling mud inlet  2820  and the drilling mud outlet  2825 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  28200  of the drilling mud screen system  28200  may be fluidly connected to, for example, the first drilling mud outlet  28120 ′ of the optional first transducer subassembly  28100 ′ via a weld; and the drilling mud outlet  28225  of the drilling mud screen system  28200  may be fluidly connected to, for example, the drilling mud inlet  28320  of the optional gate valve  28300  via a weld. 
     The inlet pressure to the drilling mud inlet  28220  of the drilling mud screen system  28200  may be any suitable pressure. In an embodiment, the inlet pressure may be from about 7500 psi to about 10,000 psi, and any range or value there between. 
     In an embodiment, the drilling mud inlet  28320  of the optional gate valve  28300  may be fluidly connected to, for example, the drilling mud outlet  28220  of the drilling mud screen system  28200  via a connection; and a drilling mud outlet  28325  of the optional gate valve  28300  may be fluidly connected to, for example, the second drilling mud inlet  28120 ″ of the optional second transducer subassembly  28100 ″ via a connection. Any suitable connection may be used for the drilling mud inlet  28320  and the drilling mud outlet  28325 . For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the drilling mud inlet  28320  of the optional gate valve  28300  may be fluidly connected to, for example, the drilling mud outlet  28220  of the drilling mud screen system  28200  via a weld; and the drilling mud outlet  28225  of the optional gate valve  28300  may be fluidly connected to, for example, a second drilling mud inlet  28125 ″ of the optional second transducer subassembly  28100 ″ via a weld. 
     In an embodiment, the second drilling mud inlet  28120 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, the drilling mud outlet  28325  of the optional gate valve  28300  via a connection; and the second drilling mud outlet  28125 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, an inlet of a vibrator hose via a connection. Any suitable connection may be used for the second drilling mud inlet  28120 ″ and the second drilling mud outlet  28125 ″. For example, suitable connections include, but are not limited to, pipe fittings and welds. Connections are well known in the art. In an embodiment, the second drilling mud inlet  28120 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, the drilling mud outlet  28325  of the optional gate valve  28300  via a weld; and a second drilling mud outlet  28125 ″ of the optional second transducer subassembly  28100 ″ may be fluidly connected to, for example, an inlet of a vibrator hose via a weld. 
     In an embodiment, an operator may close an optional gate valve  28300  to isolate a drilling mud screen system  28200  (and an upstream drilling mud pump) from cement for a cementing application. The operator may pump cement through an optional low torque plug valve  28110  in an optional second transducer assembly  28100 ″, through a vibrator hose, through a stand pipe, through a top drive and through a casing running tool (CRT). 
     Method of Removing and Replacing Drilling Mud Screen for Single-Piece and Two-Piece Bodies 
       FIG. 11  illustrates a method of removing and replacing a drilling mud screen in a single-piece or two-piece drilling mud screen system, as discussed above. As shown in  FIG. 11 , the method of removing and replacing a drilling mud screen  1100  comprises providing a drilling mud screen system  1105 , stopping a drilling mud pump connected to the drilling mud screen system  1110 , opening a drilling mud screen access port and/or a union in the drilling mud screen system to remove and replace a drilling mud screen  1115 , accessing the interior of the drilling mud screen system to pull the drilling mud screen from the drilling mud screen system and to install a replacement drilling mud screen into the drilling mud screen system  1120 , closing the drilling mud screen access port and or the union in the drilling mud screen system  1125 , and operating the drilling mud pump to produce flow of drilling mud through the drilling mud screen system  1130 . 
     In an embodiment, step  1115  comprises opening a drilling mud screen access port  130 ,  230 ,  330 ,  430  in the body  105 ,  205 ,  305   405  of the single-piece drilling mud screen system  100 ,  200 ,  300   400 . See also  FIG. 14 . In an embodiment, step  1115  comprises opening the drilling mud screen access port  630 ,  730  of the first body  605   a ,  705   a  and opening a union between the first body  605   a ,  705   a  and the second body  605   b ,  705   b  of the two-piece drilling mud screen system  600 ,  700  to remove and replace the drilling mud screen  500 . See also  FIGS. 19, 21, 23 &amp; 26 . 
     In an embodiment, step  1125  comprises closing the drilling mud screen access port  130 , 230 ,  330 ,  430  in the body  105 ,  205 ,  305 ,  405  of the single-piece drilling mud screen system  100 ,  200 ,  300 ,  400 . In an embodiment, step  1125  comprises closing the drilling mud screen access port  130 ,  230 ,  330 ,  430  of the first body  605   a ,  705   a  and connecting the union between the first body  605   a ,  705   a  and the second body  650   b ,  705   b  of the two-piece drilling mud screen system  600 ,  700 . 
     In an embodiment, step  1115  comprises opening the drilling mud screen access port  130 ,  230 ,  330 ,  430 ,  630 ,  730  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 , and step  1120  comprises using a puller/installer plate  870 ,  970  of a puller/installer tool  800 ,  900  to engage and pull the drilling mud screen  500  from the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 . In an embodiment, step  1115  comprises opening the drilling mud screen access port  130 ,  230 ,  330 ,  430 ,  630 ,  730  of the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 , and step  1120  comprises using the puller/installer plate  875 ,  975  and/or a rounded end  875 ,  975  of the puller/installer tool  800 ,  900  to install the replacement drilling mud screen  500  into the drilling mud screen system  100 ,  200 ,  300 ,  400 ,  600 ,  700 . 
     In an embodiment, step  1120  further comprises using a groove, painted line or stop plate  29110  on the shaft  825 ,  925  of the puller/installer tool  800 ,  900  to indicate when the puller/installer tool  800 ,  900  (and therefore, the drilling mud screen  500 ,  2200 ) is fully inserted in the system  100 ,  200 ,  300 ,  400 ,  600 ,  700 ,  2100 . 
     Method of Removing and Replacing Drilling Mud Screen for Piston Body 
       FIG. 32  illustrates a method of removing and replacing a drilling mud screen in a four-piece drilling mud screen system, as discussed above. As shown in  FIG. 32 , the method of removing and replacing a drilling mud screen  3200  comprises providing a piston-style drilling mud screen system  3205 , stopping a drilling mud pump connected to the piston-style drilling mud screen system  3210 , opening a lock system in the piston-style drilling mud screen system to remove and replace a drilling mud screen  3215 , accessing the interior of the piston-style drilling mud screen system to pull the drilling mud screen from the piston-style drilling mud screen system and to install a replacement drilling mud screen into the piston-style drilling mud screen system  3220 , closing the lock system in the piston-style drilling mud screen system  3825 , and operating the drilling mud pump to produce flow of drilling mud through the piston-style drilling mud screen system  3230 . 
     In an embodiment, step  3215  comprises opening the lock system  30100  of the piston-style drilling mud screen system  3000 . See e.g.,  FIGS. 30A-30G . See also  FIGS. 33A-33D &amp; 35A-35A . In an embodiment, step  3815  comprises opening the first drilling mud screen inlet  3025   a  of the first body  3005   a  and opening the lock system  30100  between the first body  3005   a  and the second body  3005   b  of the piston-style drilling mud screen system  3000  to remove and replace the drilling mud screen  500 ,  2200 . 
     In an embodiment, step  3215  comprises disengaging the first lock  30100   a  in the first body  30105   a  of the lock system  30100  (i.e., from the first body  3005 ) and disengaging the second lock  30100   b  in the second body  30105   b  of the lock system  30100  (i.e., from the second body  3005 ) in the piston-style drilling mud screen system  3000 . See e.g.,  FIGS. 30A-30B . See also  FIGS. 33A-33B &amp; 35A-35B . 
     In an embodiment, step  3215  comprises rotating the first body  3005   a  to unlatch the first assembly  30000   a  (e.g., a first breech lock) and rotating the second body  3005   b  to unlock the second assembly  30000   b  (e.g., a second breech lock) in the piston-style drilling mud screen system  3000 . See e.g.,  FIGS. 30B-30C &amp; 30G . See also  FIGS. 33B-33C &amp; 35B-35C . 
     In an embodiment, step  3215  comprises sliding the first body  3005   a  further into the lock system  30100  to fully disengage the first assembly  30000   a  (e.g., the first breech lock) and sliding the second body  3005   b  further into the lock system  30100  to fully disengage the second assembly  30000   b  (e.g., the second breech lock) in the piston-style drilling mud screen system  3000 . 
     In an embodiment, step  3215  comprises lifting, lowering, rotating, pivoting, sliding or otherwise moving one or more of the first assembly  30000   a , the second assembly  30000   b , the first body  3005   a , the second body  3005   b  and the lock system  30100  of the piston-style drilling mud screen system  3000  to open the lock system  30100  (and the piston-style drilling mud screen system  3000 ) and to remove the drilling mud screen  500 ,  2200 . See e.g.,  FIG. 30D . See also  FIGS. 33D &amp; 35D . 
     In an embodiment, step  3220  comprises removing the drilling mud screen  500 ,  2200  from the piston-style drilling mud screen system  3000 . See e.g.,  FIGS. 30D-30E . See also  FIGS. 33D &amp; 35D . In an embodiment, step  3220  comprises using a puller/installer plate  870 ,  970  of a puller/installer tool  800 ,  900  to engage and pull the drilling mud screen  500 ,  2200  from the piston-style drilling mud screen system  3000 . 
     In an embodiment, step  3220  comprises installing the replacement drilling mud screen  500 ,  2200  into the piston-style drilling mud screen system  3000 . See e.g.,  FIG. 30D . See also  FIGS. 33D &amp; 35D . In an embodiment, step  3220  comprises using the puller/installer plate  875 ,  975  and/or a rounded end  875 ,  975  of the puller/installer tool  800 ,  900  to install the replacement drilling mud screen  500 ,  2200  into the piston-style drilling mud screen system  3000 . 
     In an embodiment, step  3220  further comprises using a groove, painted line or stop plate  29110  on the shaft  825 ,  925  of the puller/installer tool  800 ,  900  to indicate when the puller/installer tool  800 ,  900  (and therefore, the drilling mud screen  500 ,  2200 ) is fully inserted in the system  3000 . 
     In an embodiment, step  3825  comprises lifting, lowering, rotating, pivoting, sliding or otherwise moving the one or more of the first assembly  30000   a , the second assembly  30000   b , the first body  3005   a , the second body  3005   b  and the lock system  30100  of the piston-style drilling mud screen system  3000  to close the lock system  30100  and the piston-style drilling mud screen system  3000 ). See e.g.,  FIGS. 30D-30E . See also  FIGS. 33D &amp; 35D . 
     In an embodiment, step  3825  comprises sliding the first body  3005   a  to engage the first assembly  30000   a  (e.g., the first breech lock) and sliding the second body  3005   b  to engage the second assembly  30000   b  (e.g., the second breech lock) of the piston-style drilling mud screen system  3000 . 
     In an embodiment, step  3825  comprises rotating the first body  3005   a  to lock the first assembly  30000   a  (e.g., the first breach lock) and rotating the second piston  3005   b  to lock the second assembly  30000   b  (e.g., the second breech lock) in the piston-style drilling mud screen system  3000 . See e.g.,  FIGS. 30B-30C &amp; 30G . See also  FIGS. 33B-33C &amp; 35B-35C . 
     In an embodiment, step  3225  comprises closing the lock system  30100  between the first body  3005   a  and the second body  3005   b  of the piston-style drilling mud screen system  3000 . 
     In an embodiment, step  3225  comprises engaging the first lock  30100   a  into the first body  30105   a  of the lock system  30100  (and the first body  3005   a ) and engaging the second lock  30100   b  into the second body  30105   b  of the lock system  30100  (and the second body  3005   b ) in the piston-style drilling mud screen system  3000 . See e.g.,  FIGS. 30A-30B . See also  FIGS. 33A-33B &amp; 35A-35B . 
     In the foregoing description of certain embodiments, specific terminology has been resorted to for the sake of clarity. However, the disclosure is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes other technical equivalents which operate in a similar manner to accomplish a similar technical purpose. Terms (e.g., “outer” and “inner,” “upper” and “lower,” “first” and “second,” “internal” and “external,” “above” and “below” and the like) are used as words of convenience to provide reference points and, as such, are not to be construed as limiting terms. 
     The embodiments set forth herein are presented to best explain the present invention and its practical application and to thereby enable those skilled in the art to make and utilize the invention. However, those skilled in the art will recognize that the foregoing description has been presented for the purpose of illustration and example only. The description as set forth is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching without departing from the spirit and scope of the following claims. 
     Also, the various embodiments described above may be implemented in conjunction with other embodiments, e.g., aspects of one embodiment may be combined with aspects of another embodiment to realize yet other embodiments. Further, each independent feature or component of any given assembly may constitute an additional embodiment. 
     Definitions 
     As used herein, the terms “a,” “an,” “the,” and “said” mean one or more, unless the context dictates otherwise. 
     As used herein, the term “about” means the stated value plus or minus a margin of error plus or minus 10% if no method of measurement is indicated. 
     As used herein, the term “or” means “and/or” unless explicitly indicated to refer to alternatives only or if the alternatives are mutually exclusive. 
     As used herein, the terms “comprising,” “comprises,” and “comprise” are open-ended transition terms used to transition from a subject recited before the term to one or more elements recited after the term, where the element or elements listed after the transition term are not necessarily the only elements that make up the subject. 
     As used herein, the terms “containing,” “contains,” and “contain” have the same open-ended meaning as “comprising,” “comprises,” and “comprise,” provided above. 
     As used herein, the terms “having,” “has,” and “have” have the same open-ended meaning as “comprising,” “comprises,” and “comprise,” provided above. 
     As used herein, the terms “including,” “includes,” and “include” have the same open-ended meaning as “comprising,” “comprises,” and “comprise,” provided above. 
     As used herein, the phrase “consisting of” is a closed transition term used to transition from a subject recited before the term to one or more material elements recited after the term, where the material element or elements listed after the transition term are the only material elements that make up the subject. 
     As used herein, the term “simultaneously” means occurring at the same time or about the same time, including concurrently. 
     Incorporation By Reference. All patents and patent applications, articles, reports, and other documents cited herein are fully incorporated by reference to the extent they are not inconsistent with this invention.