Abstract:
A mobile compressed natural gas (CNG) pressure reducing choke and heater unit are mounted to a trailer. The trailer is towable to a location that does not have a sales pipeline of CNG. The CNG has already been processed and is stored in a compressed storage station facility. The CNG then flows through an inlet and through a series of valves and then through the choke. The choke on the trailer chokes down the pressure of CNG directly from a compressed tank, usually on a separate semi-tractor. CNG is then heated, and used on site. The CNG input to this system may come from two distinct sources such that the pressure reduction can continuously occur without any readily observable delay by the user. There are outlet ports to connect to a diesel engine converted to run on CNG.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims the benefit of U.S. Provisional Application Ser. No. 62/060,859, filed Oct. 7, 2014; the disclosure of which is entirely incorporated herein by reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Technical Field 
         [0003]    The present invention relates generally devices in the oil and gas industry. More particularly, the present invention relates to a moveable trailer having a pressure reducing choke and compressed natural gas (CNG) heater unit mounted thereto. Specifically, the present invention relates to a moveable platform, a choke connected to the platform, and a heater unit connected to the platform configured to output CNG at a pressure combustible in a converted diesel engine at a remote site location that does not have access to a conventional CNG sales pipeline. 
         [0004]    2. Background Information 
         [0005]    Both natural gas and oil exploration and extraction require that wells are drilled to access the deep pockets of potential energy stored within the earth&#39;s crust. The pockets of fossil fuel stored within the earth have no relation or bearing for human development and civilization existing atop the earth&#39;s surface. This is why some oil and gas wells are located in the farthest reaches of the Arctic, the extreme dessert sands of the Middle East, and the deep waters of the oceans. Many other gas well sites are not as remote, but still not close to commercialized civilization, such as in the hilly region of Southern and Eastern Ohio, United States of America. 
         [0006]    The rigs and drilling units that operate wells in remote locations often require significant amounts of power. Many of the drilling units utilize diesel engines that have been converted to run on compressed natural gas (CNG). These engines typically require that the pressure of CNG fed into the converted diesel engine be input at about 50 pounds per square inch (PSI). However, due to the remoteness of the well locations, there is rarely a conventional CNG sales pipeline at the well site. 
       SUMMARY 
       [0007]    Issues continue to exist with operating converted diesel engines on CNG at a well site remote from a CNG sales pipeline. The present invention addresses these and other issues by providing a device that allows a truck carrying highly pressurized CNG to be driven to a remote well site and unload its pressurized CNG contents/payload through the device so that a converted diesel engine may operate at the remote well site. 
         [0008]    In one aspect, an embodiment of the invention may provide a transportable gas device comprising: a moveable platform; a choke connected to the platform configured to decrease pressure of compressed fuel moving therethrough; and a heater unit connected to the platform for heating a length of heater pipeline, the heater pipeline in fluid communication with the choke and downstream from the choke. 
         [0009]    In another aspect, an embodiment of the invention may provide a transportable gas device comprising: a moveable platform; a choke connected to the moveable platform configured to decrease pressure of compressed fuel moving therethrough; and a heater unit connected to the moveable platform in downstream fluid communication with the choke to warm the compressed fuel after the pressure has been decreased by the choke. 
         [0010]    In another aspect, another embodiment of the invention may provide a method comprising the steps of: providing a moveable platform and a choke fluidly coupled to a heater unit mounted on the moveable platform; coupling the choke with a first compressed fuel source via pipeline or tubing; moving fuel from the source towards the choke; and decreasing the fuel pressure as the fuel moves through the choke. 
         [0011]    In another aspect, the invention may provide a device comprising: a drop-neck trailer for attaching to a truck via a fifth-wheel hitch assembly located at the front end the trailer; a platform on the trailer extending rearward from adjacent the front end; a pair of inlets mounted to the platform on the trailer on a respective left and right side of the trailer; high pressure gas pipeline for therein containing pressurized compressed natural gas flowing from a CNG tank on a vehicle distinct from the trailer; a choke mounted to the trailer and coupled to the inlets via the gas pipeline, the choke configured to reduce an incoming gas pressure to an outgoing gas pressure of about 50 PSI; a heater unit mounted to the trailer and connected downstream from the choke via pipeline; and a pair of outlets downstream from the heater unit mounted to the platform on the trailer on a respective left and right side of the trailer. 
         [0012]    In one aspect, an embodiment may provide a method comprising the steps of: positioning a transportable choke at a site; parking a first pressure vessel mounted on a first vehicle and carrying compressed CNG therein near the transportable choke; moving the compressed CNG from the first pressure vessel through the choke to decrease the pressure of the CNG; parking a second pressure vessel mounted on a second vehicle and carrying compressed CNG therein near the transportable choke; and moving the compressed CNG from the second pressure vessel through the choke to decrease the pressure of the CNG. 
         [0013]    In yet another aspect, one embodiment may provide a mobile CNG pressure reducing choke and heater unit mounted to a trailer. The trailer is towable to a location that does not have a sales pipeline of CNG. Clean gas that has already been processed from a compressed storage station facility is input into the inlets. The CNG then flows through a series of valves and then through the choke. The choke on the trailer chokes down the pressure of CNG directly from a compressed tank, usually on a separate semi-tractor. The CNG is then heated, and used on site. The CNG input to this system may come from two distinct sources such that the pressure reduction can continuously occur without any readily observable delay by the user. There are outlet ports to connect to a diesel engine converted to run on CNG. 
     
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         [0014]    A sample embodiment of the invention, illustrative of the best mode in which Applicant contemplates applying the principles, is set forth in the following description, is shown in the drawings and is particularly and distinctly pointed out and set forth in the appended claims. The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate various example methods, and other example embodiments of various aspects of the invention. It will be appreciated that the illustrated element boundaries (e.g., boxes, groups of boxes, or other shapes) in the figures represent one example of the boundaries. One of ordinary skill in the art will appreciate that in some examples one element may be designed as multiple elements or that multiple elements may be designed as one element. In some examples, an element shown as an internal component of another element may be implemented as an external component and vice versa. Furthermore, elements may not be drawn to scale. 
           [0015]      FIG. 1  is a side elevation view of the present invention including a moveable platform, a choke connected to the platform, and a heater unit connected to the platform; 
           [0016]      FIG. 2  is an enlarged side elevation view of the present invention shown from a drop neck section on a trailer rearwardly; 
           [0017]      FIG. 3  is a top view of the present invention depicted in  FIG. 2 ; 
           [0018]      FIG. 4  is an enlarged top view of the call out box labeled “See FIG.  4 ” in  FIG. 3 ; 
           [0019]      FIG. 5  is an enlarged top view of the choke and a bypass valve indicated in the call out box labeled “See FIG.  5 ” in  FIG. 4 ; 
           [0020]      FIG. 6  is a cross-section view taken along line  6 - 6  in  FIG. 4 ; 
           [0021]      FIG. 7  is a top view of an operational embodiment of the present invention depicting a first vehicle positioned along the side of the trailer; 
           [0022]      FIG. 8  is a top view of an operational embodiment of the present invention depicting a second vehicle on an opposite side of the trailer; 
           [0023]      FIG. 9  is a top view of an operational embodiment of the present invention depicting the first vehicle driving away from the trailer; and 
           [0024]      FIG. 10  is a flow chart of an exemplary method of the present invention. 
       
    
    
       [0025]    Similar numbers refer to similar parts throughout the drawings. 
       DETAILED DESCRIPTION 
       [0026]    A transportable gas device and system of the present invention as depicted throughout  FIGS. 1-10  and is shown generally as  10 . System  10  includes a moveable platform  12 , choke  14 , and heater  16 . 
         [0027]    As depicted in  FIG. 1  and  FIG. 2 , platform  12  is on a trailer  18 . Trailer  18  includes a front end  20  spaced apart from a rear end  22  defining a longitudinal direction therebetween. Trailer  18  further includes a left side  24  spaced apart from a right side  26  defining a transverse direction therebetween. Trailer  18  includes a fifth wheel hitch  28  near the forward end  20  for connecting the trailer  18  to a vehicle  30  such as a tractor-truck. In one particular embodiment, trailer  18  includes a drop neck section  32  positioned slightly rearwardly from the front end  20 . Drop neck section  32  includes a pair of downwardly extending landing gear arms  34  to engage the ground when front end hitch is disconnected from the vehicle  30 . Further, drop neck section  32  permits platform  12  on trailer  18  to sit at a lower vertical height than a conventional flat platform on the trailer which is advantageous as some state laws may have height limitations for a commercial vehicle. The platform  12  extends rearwardly from the drop neck section  32  and terminates at the end of the platform  12  defining the rear end  22  of the trailer  18 . Platform  12  further includes an upwardly facing top surface  38  and opposite a downwardly facing bottom surface  37 . A conventional suspension and wheel assembly  36  is connected to the trailer  18  beneath the bottom surface  37  of platform  12  adjacent the rear end  22  of trailer  18 . 
         [0028]    As depicted in  FIG. 2  and  FIG. 3 , gas pipeline  40  is connected to the platform  12  in various locations. An inlet  42  to the gas pipeline  40  is mounted to the trailer  18 , and in one particular embodiment an inlet  42  is positioned above the top surface  38  of platform  12 . Further, in an additional particular embodiment, a second inlet  44  is in fluid communication with the pipeline  40  and mounted near a side of the trailer  18  different than that of the first inlet  42 . In one shown embodiment, a first inlet  42  is mounted on the left side  24  of the trailer  18  and a second inlet  44  is mounted on the right side  26  of the trailer  18 . The purpose of this configuration will be explained in later detail with respect to compressed natural gas flowing through said pipeline from two distinct source containers located on delivery vehicles. 
         [0029]    As depicted in  FIG. 4 , a series of motor valves  46  and manual valves  48  are located along the pipeline  40  between the inlet  44  and the choke  14 . One such valve is a bypass valve  50  positioned along the pipeline  40  in parallel flow with the choke  14 . Bypass valve  50  is configured to cause CNG to bypass the choke  14  when the pressurized CNG flowing through the pipeline  40  is at a pressure value (approximately 50 PSI) that is able to be fed into a converted diesel engine configured to run on CNG. Bypass valve  50  is in electrical communication  52  with a computer  54  having logic to control said bypass valve  50 . 
         [0030]    As depicted in  FIG. 5 , the choke  14  is connected in fluid communication along pipeline  40  and aligned in fluid parallel communication with bypass valve  50 . Choke  14  includes an inlet  56  and an outlet  58 . Choke  14  further includes an adjustable orifice  60  within the choke  14  to adjust the pressure of CNG flowing from upstream to downstream through said choke  14 . Orifice diameter may be varied to adjust the pressure of CNG flowing therethrough. Preferably, choke  14  is an electrically controlled choke. One particular non-limiting example of an electrically controlled choke is available commercially for sale under the name Severe Service Choke, model number CVC-ME, sold by T3 Energy Service, a unit of Robbins &amp; Myers, Inc. of Houston, Tex. 
         [0031]    In one particular embodiment, the orifice  60  is in electrical communication  52  with the computer  54  and logic which adjusts the orifice  60  diameter in accordance with preset computer software conditions. The logic may be contained in the same computer  54  as logic of the bypass valve  50  or may be a separate and distinct unit as one having ordinary skill in the art would understand. However, in an additional alternative embodiment, orifice  60  of choke  14  may be attached to a manual wheel  64  selectively rotatable by a user to adjust the orifice size. 
         [0032]    A non-limiting example of the manner in which the computer  54  or computing device may operate is described in the following manner. The example computing device may be the computer  54  that includes a processor, a memory, and input/output ports operably connected by a bus. In one example, the computer may include a pressure logic configured to calculate the pressure, via connection  66  to sensor  68 , of CNG in the pipeline  40  to determine whether to activate bypass valve  50  or to adjust orifice  60  size inside the choke  14 . In different examples, the logic may be implemented in hardware, software, firmware, and/or combinations thereof. Thus, the logic may provide means (e.g., hardware, software, and firmware) for calculating CNG pressure flowing through the pipeline  40  to determine whether to activate the bypass valve  50  or adjust the orifice  60  inside the choke  14 . While the logic can be a hardware component attached to the bus, it is to be appreciated that in one example, the logic could be implemented in the processor. 
         [0033]    Generally describing an example configuration of the computer  54 , the processor may be a variety of various processors including dual microprocessor and other multi-processor architectures. A memory may include volatile memory and/or non-volatile memory. Non-volatile memory may include, for example, ROM, PROM, EPROM, and EEPROM. Volatile memory may include, for example, RAM, synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), and direct RAM bus RAM (DRRAM). 
         [0034]    A disk may be operably connected to the computer via, for example, an input/output interface (e.g., card, device) and an input/output port. The disk may be, for example, a magnetic disk drive, a solid state disk drive, a floppy disk drive, a tape drive, a Zip drive, a flash memory card, and/or a memory stick. Furthermore, the disk may be a CD-ROM, a CD recordable drive (CD-R drive), a CD rewriteable drive (CD-RW drive), and/or a digital video ROM drive (DVD ROM). The memory can store a process and/or a data, for example. The disk and/or the memory can store an operating system that controls and allocates resources of the computer. 
         [0035]    The bus may be a single internal bus interconnect architecture and/or other bus or mesh architectures. While a single bus is illustrated, it is to be appreciated that the computer may communicate with various devices, logics, and peripherals using other busses (e.g., PCIE, SATA, Infiniband, 1394, USB, Ethernet). The bus can be types including, for example, a memory bus, a memory controller, a peripheral bus, an external bus, a crossbar switch, and/or a local bus. 
         [0036]    The computer may interact with input/output devices via the I/O interfaces and the input/output ports. Input/output devices may be, for example, pressure sensors  68 , a keyboard, a microphone, a pointing and selection device, cameras, video cards, displays, the disk, the network devices, and so on. The input/output ports may include, for example, serial ports, parallel ports, and USB ports. 
         [0037]    The computer  54  can operate in a network environment and thus may be connected to the network devices via the I/O interfaces, and/or the I/O ports. Through the network devices, the computer may interact with a network. Through the network, the computer may be logically connected to remote computers. Networks with which the computer may interact include, but are not limited to, a local area network (LAN), a wide area network (WAN), and other networks. The networks may be wired and/or wireless networks. 
         [0038]    “Logic”, as used herein, includes but is not limited to hardware, firmware, software and/or combinations of each to perform a function(s) or an action(s), and/or to cause a function or action from another logic, method, and/or system. For example, based on a desired application or needs, logic may include a software controlled microprocessor, discrete logic like a processor (e.g., microprocessor), an application specific integrated circuit (ASIC), a programmed logic device, a memory device containing instructions, an electric device having a memory, or the like. Logic may include one or more gates, combinations of gates, or other circuit components. Logic may also be fully embodied as software. Where multiple logics are described, it may be possible to incorporate the multiple logics into one physical logic. Similarly, where a single logic is described, it may be possible to distribute that single logic between multiple physical logics. 
         [0039]    The heater unit  16  is connected to the trailer  18 . In one particular embodiment, the heater unit  16  is mounted on the top surface  38  of the platform  12 . Heater  16  includes an inlet  70  and an outlet  72 , wherein said inlet  70  of the heater  16  is in fluid communication with the outlet  58  from the choke  14 . Heater  16  is a boxlike structure therein containing a heat exchanging pipeline  74  submerged in a heat exchanging fluid leading to the outlet  72  along the heat exchanging pipeline  74 . The heater  16  warms or heats CNG gas moving through the submerged heat exchanging pipeline  74  in the heated fluid downstream from the choke  14 . The heater  16  is necessary because with about every 100 PSI reduced by the choke  14 , the CNG loses about 7° F. Thus, if CNG is moving through the inlet is around 3500 PSI and it is being choked down to a reduced pressure of about 50 PSI downstream from the choke  14 , an extreme pressure drop occurs and if the heater  16  was not present, the CNG would freeze up and be un-usable. Thus, the heater  16  keeps the CNG at a high enough temperature such that the CNG is usable and not frozen. 
         [0040]    An outlet  72  from the heater  16  is connected via pipeline to at least one outlet  76  on the side of the trailer  18 . In the shown embodiment, a second outlet  78  is in fluid communication with the pipeline  40  downstream from the heater  16  and mounted to the trailer  18  at a location on a side different than that of the first outlet  76 . The purpose of two outlets  76 ,  78  being located on opposite sides, or at least different sides, of the trailer  18  is that two separate and distinct diesel engines  80  that have been converted to run on CNG may be connected to the outlets to run devices located at a well site without physically interfering with each other. 
         [0041]    In accordance with one aspect of an embodiment of the present invention, the transportable gas device  10  permits a user, such as a well drilling company, to operate a diesel engine converted to run on CNG at a location where a normal CNG sales pipeline does not exist. 
         [0042]    In operation and with reference to  FIG. 7 ,  FIG. 8 , and  FIG. 9 , a user provides the moveable platform  12  in the form of a trailer  18  including the choke  14  and the heat exchanging unit  16  mounted thereon. The trailer  18  is towed to a remote site. In one particular embodiment, the remote site is a fossil fuel well pumping or extracting facility. The remote site contemplated in the present invention is free of any CNG sales pipeline leading to the site that would allow a diesel engine converted to run on sales pipeline quality CNG to operate at the remote site. The trailer  18  is secured at the remote site via landing gear  34  and positioned in a manner such that the sides  24 ,  26  are relatively free from obstructions allowing a first hauling vehicle  82  including a pressure vessel tank  83  filled with highly pressurized CNG to park adjacent either side of the trailer  18 . 
         [0043]    The hauling vehicle  82  having a pressure vessel tank  83  mounted thereon preferably approaches the trailer  18  from one end, either the front end  20  or the rear end  22 . The vehicle  82  pulls up and aligns with an inlet  42  on a side of the trailer  18 . An user then connects, via pipeline or tubing  86 , an outlet  88  of the pressure vessel tank  83  filled with compressed CNG on the vehicle  82  to the inlet  42  on the side of the trailer  18 . 
         [0044]    In one particular embodiment, the hauling vehicle  82  CNG is stored within pressure vessel tank  83  at a pressure of approximately 3,500 PSI. The CNG contained in the pressure vessel  83  has been loaded or filled into the pressure vessel at an off-site facility by conventionally known methods as one having ordinary skill in the oil and gas art would understand. Similarly, the manner in which the CNG flows outwardly from the pressure vessel through the outlet into the inlet on the trailer  18  may be accomplished by means ordinarily understood in the art, such as a pump or under free flow via the CNG&#39;s own differential pressure. 
         [0045]    The CNG enters pipeline  40  through the inlet  42  and flows downstream towards a T-fitting  90  passing valves  46 ,  48  and pressure sensor  68  along the way. The gas flows into one end of the T-fitting  90  and out two outlets  92 ,  94 . The bypass valve  50  is fluidly coupled to the first outlet  92  of the T-fitting  90  and the second outlet  94  of the T-fitting  90  is fluidly coupled to the choke  14 . When the bypass valve  50  is closed the gas flows through the T-fitting  90  towards the choke  14 . Gas enters through the choke inlet  56  and then approaches an orifice  60  inside the choke  14 . The orifice  60  in the choke  14  is configured to reduce the pressure of the CNG flowing therethrough. 
         [0046]    In one particular embodiment, the choke  14  reduces the pressure of the CNG flowing therethrough from a pressure of about 3500 PSI upstream from the choke  14  to a downstream pressure of about 50 PSI. It should be noted that the pressure of the CNG upstream from the choke  14  decreases as CNG fuel is depleted from the pressure vessel tank  83  on the hauling vehicle  82  as time goes on and more CNG passes through the orifice  60  inside the choke  14 . One exemplary purpose of reducing the CNG gas pressure in the pipeline to about 50 PSI is so that a converted diesel engine  80  converted to run on CNG may be fed through an engine inlet with CNG. Converted diesel engines  80  ordinarily require an inlet CNG pressure of about 50 PSI. 
         [0047]    After moving through the choke  14 , the less-pressurized CNG, now at about 50 PSI, flows through a heater unit  16 . The heater unit  16  includes a heat exchanging pipeline  74  submerged in a heated fluid bath extending from an inlet  70  downstream to an outlet  72 . The less-pressurized CNG flows through the heat exchanger pipeline, the heated fluid contacts the submerged pipe  74  thereby imparting heat to the gas flowing downstream from inlet  70  to outlet  72 , through the heater unit  16 . One particular non-limiting purpose of the heater unit is to heat the gas as the pressure decreases. Ordinarily, CNG loses about 7° F. for every 100 PSI dropped in a pressure reducer (i.e., the choke  14 ). Thus, if a heater unit is not downstream from the choke  14 , the less-pressurized CNG, at about 50 PSI, would condense into a liquid and then freeze into a solid downstream from the choke  14 . Thus, heating the fuel after decreasing the fuel pressure prevents condensation of the fuel into a liquid and further prevents freezing into a solid phase material. The gas flows downstream from the outlet  72  on the heater unit towards an outlet  76  connected to platform  12  on the trailer  18 . The outlet  76  on the trailer  18  is placed in an area that allows a converted diesel engine  80  to connect thereto via pipeline or tubing  81  to allow it to operate at the remote site. 
         [0048]    Reference is now made to the operation of the bypass valve  50  connected to one outlet  92  of the T-fitting  90  mounted fluidly in parallel with the choke  14 . The bypass valve  50  is electrically coupled  52  to the computer  54 . The computer  54  is configured to monitor the pressure of the CNG in the pipeline upstream from the choke  14  via sensor  68 . As the CNG is depleted from the pressure vessel  83  moving through the choke  14 , the computer  54  continuously, or at least regularly, monitors the upstream pressure via sensor  68 . When the upstream pressure approaches 50 PSI, the heating of gas downstream from the choke  14  is no longer necessary. Thus, when CNG upstream from the choke  14  nears 50 PSI the computer actuates the bypass valve  50  to open said bypass valve  50  while simultaneously actuating the adjustable orifice  60  inside the choke  14  to close it. This allows gas to flow through the bypass valve  50  directly to the outlet  76  mounted on the trailer  18  without having to go through the choke  14  and heater unit  16 . 
         [0049]    In operation, and with continued reference to  FIG. 7 ,  FIG. 8 , and  FIG. 9 , the moveable platform  12  on the trailer  18  has a first inlet  42  and a second inlet  44  connected thereto. In this particular embodiment a hauling vehicle  82  approaches one side of the trailer  18  to connect its CNG to the first outlet. CNG is depleted from the first pressure vessel  83  on the first vehicle  82  in the manner described above. While the first pressure vessel  83  is depleting its contents through the gas system, the choke  14 , and the heater unit  16 , a second valve, similar to that of  46  or  48 , at or near second inlet  44  may be closed. 
         [0050]    A second vehicle  84  carrying a second pressure vessel  85  may pull up and park next to the second inlet  44  and on a side different than that of the first inlet. In the shown embodiment, the second inlet  44  is located on the right side  26  of the trailer  18 . An user may connect the second pressure vessel  85  on the second vehicle  84  containing CNG to the second inlet  44  via pipeline or tubing  86 . As the first pressure vessel depletes its CNG payload to a nearly empty point the computer  54  may electronically close a valve at or near the first inlet while simultaneously opening the valve at or near the second inlet  44 . This stops the flow of CNG from the first pressure vessel  83  and starts the flow of CNG from the second pressure vessel  85  without significant delay as observed by the user/user, or in real time. 
         [0051]    The first vehicle  82  may then disconnect from the first inlet  42  and drive away from the trailer  18 . Preferably, the first vehicle  82  will drive to a CNG refilling station where it can refill with CNG and drive back to the trailer  18  to re-connect with the first inlet  42  such that a similar cycle can be repeated wherein the computer  54  will actuate the second valve near the second inlet  44  as the second pressure vessel  85  nears depletion and the valve near the first inlet  42  may be actuated open such the first pressure vessel  83  carrying a new payload of CNG continues to flow through the pipeline  40  without significant delay as observed by the user. This cycle continues until the user no longer desires to operate an engine  80  at the remote site with the CNG moving through the system  10 . Further, while this embodiment is described as only using two vehicles  82 ,  84 , there may be a third, a fourth, a fifth, a sixth hauling vehicle, and so on, depending on how far the CNG filling station is located from the trailer  18  parked at the remote site. 
         [0052]    In further operation, one embodiment of the present invention depicts a first outlet  76  and a second outlet  78  mounted on different sides of the trailer  18 , shown left and right sides, configured to operate two separate and distinct converted diesel engines at the remote site. While the two outlets are shown, it could clearly be understood by one having ordinary skill in the art that there may only be one outlet, or there may be three or more outlets, all depending on how many converted diesel engines the remote site user desires to run at a given time. Further, each outlet may include a valve electronically connected to the computer to be actuated at a desired time as one having ordinary skill in the art would understand. 
         [0053]    In operation and with reference to  FIG. 10 , a method is shown generally at  1000 . Method  1000  comprises the steps of: providing a moveable platform with a choke mounted thereon, the choke fluidly coupled to a heater unit also mounted on the moveable platform, shown generally at  1002 ; coupling the choke with a first compressed fuel source via pipeline or tubing, shown generally at  1004 ; moving fuel from the source towards the choke, shown generally at  1006 ; and decreasing the fuel pressure as the fuel moves through the choke, shown generally at  1008 . 
         [0054]    In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed. 
         [0055]    Moreover, the description and illustration of the preferred embodiment of the invention are an example and the invention is not limited to the exact details shown or described.