Patent Publication Number: US-2023151707-A1

Title: Laser milling and removal tool and methods

Description:
BACKGROUND OF THE DISCLOSURE 
     1. Field of the Disclosure 
     The disclosure relates generally to drilling and completion of a subterranean well, and more particularly to tools and methods related to the use of lasers in downhole applications. 
     2. Description of the Related Art 
     During conventional drilling of a subterranean well, a mechanical drill bit is used to drill into the formation in sections and the well section can then be cased with steel pipe. The steel pipes of the casing can be cemented into place. The creation of holes or windows in the casing after the casing has been installed in the wellbore can be achieved with mechanical tools such as milling tools which grind through the metal tubular members. Milling the casing can involve cutting a window through the side of the casing or to remove a continuous section of the casing so that the wellbore may be deviated from the original well through the window or section removed. 
     In addition, there may be times during the drilling, completion, or operation of the subterranean well that items are lost within the wellbore. Such items are commonly called fish or junk. The items can be, for example, junk metal, tools, parts or pieces of drill pipe or drill collars, drilling components, or other components used within the subterranean well. The item that is accidentally dropped or left within the wellbore can fall to the bottom of the wellbore or become jammed within the wellbore, blocking the wellbore or damaging the tubular members. Such fish can currently be mechanically removed with a milling tool, such as a tool that grinds the fish into smaller pieces to be removed from the wellbore. As an example, a fluid flow within the wellbore can remove the milled material from the wellbore. 
     SUMMARY OF THE DISCLOSURE 
     Mechanical means to mill objects in a wellbore and create holes and windows in casing can be time consuming and inaccurate. Embodiments of this disclosure provide systems and methods for removing a target material in the wellbore or grinding away a target portion of the casing by cutting the target in small parts. The tool operates in three actions: circular cutting; using side rotational lenses; longitudinal cutting using scanner optics; and laser head drilling to remove stuck material in the well bore. Systems and method of this disclosure utilize a laser that can provide precise and reliable material removal. 
     In an embodiment of this disclosure, a laser system for cutting objects within a subterranean well having a longitudinal axis includes a laser drilling head located at a terminal downhole end of a laser tool body. The laser drilling head is operable to direct a head laser beam in a direction downhole of the laser tool body. A laser scanner assembly is located within the laser tool body uphole of the laser drilling head. The laser scanner assembly has a scanner head operable to direct a scanner laser beam and to move both axially along a length of the laser tool body and rotate around a central axis of the laser tool body. A laser cutter assembly is located within the laser tool body uphole of the laser drilling head. The laser cutter assembly has a cutter head operable to direct a cutter laser beam and to rotate around the central axis of the laser tool body. A cable bundle is formed of a plurality of fiber optic cables extending from an uphole end of the laser tool body to each of the laser drilling head, the laser scanner assembly, and the laser cutter assembly. 
     In alternate embodiments, the laser scanner assembly can include an axial support, where the scanner head is moveable along the axial support. The scanner head can be rotatable relative to the axial support in an axial direction. The laser scanner assembly can be operable to direct the scanner laser beam in a zigzag pattern along an internal surface of the subterranean well. The laser cutter assembly can include a support ring and one of the plurality of fiber optic cables can extend from the cable bundle to the support ring. 
     In other alternate embodiments, the laser cutter assembly can include a cutter lens operable to direct the cutter laser beam from one of the plurality of fiber optic cables. The laser cutter assembly can be operable to direct the cutter laser beam in a circumferential pattern along an internal surface of the subterranean well. The laser cutter assembly can be operable to direct the cutter laser beam in a helical pattern along an internal surface of the subterranean well as the laser tool body is moved longitudinally within the wellbore. 
     In yet other alternate embodiments, the system can further include an orientation member, the orientation member operable to confirm the orientation of the laser system within the subterranean well. The system can alternately include a logging tool, the logging tool operable to confirm the axial location of the laser tool body within the subterranean well. The system can alternately include a joint located uphole of the laser drilling head, and downhole of both the laser scanner assembly and the laser cutter assembly. The system can further include a packer located radially exterior of the laser tool body, the packer selectively extendable to position the laser tool body within the subterranean well. 
     In an alternate embodiment of this disclosure, a method for cutting objects within a subterranean well having a longitudinal axis includes lowering a laser system into the subterranean well. The laser system has a laser drilling head located at a terminal downhole end of a laser tool body. A laser scanner assembly is located within the laser tool body uphole of the laser drilling head. A laser cutter assembly is located within the laser tool body uphole of the laser drilling head. A cable bundle is formed of a plurality of fiber optic cables extending from an uphole end of the laser tool body to each of the laser drilling head, the laser scanner assembly, and the laser cutter assembly. The method further includes directing a head laser beam in a direction downhole of the laser tool body with the laser drilling head. A scanner laser beam is directed with a scanner head of the laser scanner assembly, the laser scanner assembly moveable both axially along a length of the laser tool body and rotationally around a central axis of the laser tool body. A cutter laser beam is directed with a cutter head of the laser cutter assembly, the laser cutter assembly rotatable around the central axis of the laser tool body. 
     In alternate embodiments, the laser scanner assembly can include an axial support, and the method can further include moving the scanner head along the axial support. The scanner head can rotate relative to the axial support in an axial direction. The laser scanner assembly can direct the scanner laser bean in a zigzag pattern along an internal surface of the subterranean well. 
     In other alternate embodiments, the laser cutter assembly includes a support ring, and the method can further include extending one of the plurality of fiber optic cables from the cable bundle, to the support ring. The laser cutter assembly can include a cutter lens, and the method can further include directing the cutter laser beam from one of the plurality of fiber optic cables with the cutter lens. The laser cutter assembly can direct the cutter laser beam in a circumferential pattern along an internal surface of the subterranean well. Alternately, the laser cutter assembly can direct the cutter laser beam in a helical pattern along an internal surface of the subterranean well as the laser tool body is moved longitudinally within the wellbore. 
     In yet other alternate embodiments, the laser system can further include an orientation member, and the method can further include confirming the orientation of the laser system within the subterranean well with the orientation member. The laser system can further include a logging tool, and the method can further include confirming the axial location of the laser tool body within the subterranean well with the logging tool. The laser system can further include a joint located uphole of the laser drilling head, and downhole of both the laser scanner assembly and the laser cutter assembly. The laser system can further include a packer located radially exterior of the laser tool body, and the method can further include extending the packer to position the laser tool body within the subterranean well. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       So that the manner in which the previously-recited features, aspects and advantages of the embodiments of this disclosure, as well as others that will become apparent, are attained and can be understood in detail, a more particular description of the disclosure briefly summarized previously may be had by reference to the embodiments that are illustrated in the drawings that form a part of this specification. It is to be noted, however, that the appended drawings illustrate only certain embodiments of the disclosure and are, therefore, not to be considered limiting of the disclosure’s scope, for the disclosure may admit to other equally effective embodiments. 
         FIG.  1    is a schematic partial section elevation view of a subterranean well having a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  2    is a perspective view of a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  3    is a section view of the laser system of  FIG.  2   . 
         FIG.  4    is a detailed section elevation view of a subterranean well having a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  5    is a detailed perspective view of a laser scanner assembly of a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  6    is a detailed perspective view of a laser cutter assembly of a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  7 A  is a schematic representation of a zigzag pattern of a laser scanner assembly of a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  7 B  is a schematic section elevation view of a zigzag pattern of a laser scanner assembly of a laser system cut into casing of a subterranean well, in accordance with an embodiment of this disclosure. 
         FIG.  8 A  is a schematic representation of a helical pattern of a laser cutter assembly of a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  8 B  is a schematic section elevation view of a helical pattern of a laser cutter assembly of a laser system cut into casing of a subterranean well, in accordance with an embodiment of this disclosure 
         FIG.  9 A  is a schematic representation of the helical pattern of a laser cutter assembly of a laser system superimposed over the zigzag pattern of a laser scanner assembly of a laser system, in accordance with an embodiment of this disclosure. 
         FIG.  9 B  is a schematic section elevation view of the helical pattern of a laser cutter assembly of a laser system superimposed over the zigzag pattern of a laser scanner assembly of a laser system cut into casing of a subterranean well, in accordance with an embodiment of this disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE DISCLOSURE 
     The disclosure refers to particular features, including process or method steps. Those of skill in the art understand that the disclosure is not limited to or by the description of embodiments given in the specification. The subject matter of this disclosure is not restricted except only in the spirit of the specification and appended Claims. 
     Those of skill in the art also understand that the terminology used for describing particular embodiments does not limit the scope or breadth of the embodiments of the disclosure. In interpreting the specification and appended Claims, all terms should be interpreted in the broadest possible manner consistent with the context of each term. All technical and scientific terms used in the specification and appended Claims have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless defined otherwise. 
     As used in the Specification and appended Claims, the singular forms “a”, “an”, and “the” include plural references unless the context clearly indicates otherwise. 
     As used, the words “comprise,” “has,” “includes”, and all other grammatical variations are each intended to have an open, non-limiting meaning that does not exclude additional elements, components or steps. Embodiments of the present disclosure may suitably “comprise”, “consist” or “consist essentially of” the limiting features disclosed, and may be practiced in the absence of a limiting feature not disclosed. For example, it can be recognized by those skilled in the art that certain steps can be combined into a single step. 
     Where a range of values is provided in the Specification or in the appended Claims, it is understood that the interval encompasses each intervening value between the upper limit and the lower limit as well as the upper limit and the lower limit. The disclosure encompasses and bounds smaller ranges of the interval subject to any specific exclusion provided. 
     Where reference is made in the specification and appended Claims to a method comprising two or more defined steps, the defined steps can be carried out in any order or simultaneously except where the context excludes that possibility. 
     Referring to  FIG.  1   , subterranean well  10  can have wellbore  12  that extends from an earth’s surface  14 . Subterranean well  10  can be an offshore well or a land based well and can be a well associated with hydrocarbon development operations, such as, for example, a hydrocarbon production well, an injection well, or a water well. Wellbore  12  can be drilled from surface  14  and into and through various subterranean formations. Subterranean well  10  can have a longitudinal axis, Ax. In the example embodiment of  FIG.  1   , subterranean well  10  is shown as extending generally vertically from surface  14 . In alternate embodiments, subterranean well  10  can have a wellbore  12  that is not generally vertical relative to surface  14 , such as an inclined, deviation, horizontal wellbore. 
     Casing  16  can line an inner diameter surface of wellbore  12 . Casing  16  can be formed of a series of tubular pipe joints that are secured end to end. Casing  16  can be a tubular member that has a bore. 
     There may be times during the development or operation of subterranean well  10  that a component  18  is lost within wellbore  12 . Such components  18  are commonly called fish or junk. Component  18  can be, for example, junk metal, tools, parts or pieces of drill pipe or drill collars, drilling components, or other components used within the subterranean well  10 . Component  18  that is accidentally dropped or left within wellbore  12  can fall to the bottom of wellbore  12 . 
     There may alternately be times during the development or operation of subterranean well  10  that there are blockages or obstructions within wellbore  12 , or damage to tubular members or equipment within wellbore  12 . The obstructions can be caused, for example, by a component  18  being stuck or jammed within wellbore  12 . Looking at  FIG.  1   , component  18  is shown generically as an item that has been lost within wellbore  12 , as an item that is blocking or obstructing wellbore  12 , or as a damaged feature of wellbore  12 . 
     In other alternate times, an operator may wish to cut through casing  16  or another tubular member within wellbore  12 . As an example, the operator may want to cut a window through the side of casing  16  or to remove a continuous section of casing  16  so that the wellbore may be deviated from the original well through the window or section removed. 
     Laser system  22  can be used to cut component  18  or a portion of casing  16  into pieces of a size that can be removed from wellbore  12 . Looking at  FIGS.  2 - 3   , laser system  22  includes laser tool body  24 . Laser tool body  24  is a generally tubular shaped member. Laser tool body  24  surrounds and contains features of the laser tool body  24 . Laser tool body  24  can be secured to a delivery member  26  ( FIG.  1   ), such as a wireline, e-line, drill string, or other tubular member. 
     Looking at  FIG.  3   , laser drilling head  28  is located at a terminal downhole end of laser tool body  24 . Orientation member  30  is located uphole of laser drilling head  28 . Logging tool  32  is also positioned uphole of laser drilling head  28 . Orientation member  30  and logging tool  32  are also located within laser tool body  24 . Laser drilling head  28 , orientation member  30  and logging tool  32  together form a downhole assembly of laser system  22 . Joint  34  is secured to an uphole end of the downhole assembly of laser system  22 , securing the downhole assembly of laser system  22  to an uphole assembly of laser system  22 . 
     Uphole assembly of laser system  22  includes laser scanner assembly  36  and laser cutter assembly  38 . Each of laser scanner assembly  36  and laser cutter assembly  38  are also located within laser tool body  24 . Each of laser scanner assembly  36  and laser cutter assembly  38  are also located within laser tool body  24 . Laser drilling head  28 , laser system  22 , and laser cutter assembly  38  are secured in line. Cable bundle  40  extends from within laser tool body  24  and out an uphole end of laser tool body  24 . Cable bundle  40  is formed of a plurality of fiber optic cables that extend from an uphole end of laser tool body  24  to each of laser drilling head  28 , laser scanner assembly  36 , and laser cutter assembly  38 . 
     Looking at  FIG.  4   , laser drilling head  28  can direct head laser beam  42  beam in a direction downhole of the laser tool body. Head laser beam  42  can be used to penetrate into component  18  that is stuck in wellbore  12 . Laser energy is generated by the generator at the surface by laser generator  44  ( FIG.  1   ) and a primary laser beam is delivered by way of cable bundle  40  to laser system  22 . Laser generator  44  can generate a high powered laser beam that can drill into and through different materials including steel, alloy, cement and rocks. Because laser generator  44  can generate a laser beam that can cut and drill through steel, alloy, cement or rocks, embodiments of this application can therefore successfully cut into and through such materials as well as other materials having a similar range of stress or strength. 
     Optics of laser drilling head  28  can be used to direct the primary laser beam to form head laser beam  42  and direct head laser beam  42  towards component  18 . The primary laser beam used to form head laser beam  42  can have a power of at least 5 kW and be a continuous laser beams that is delivered by fiber optics. 
     Orientation member  30  can confirm the orientation of laser system  22  within subterranean well  10 . Orientation member  30  can, for example, determine the alignment of laser system  22  relative to a target location. Such alignment determination may include an axial distance of laser system  22  from a target or a relative distance or radial positioning of laser drilling head  28 , laser scanner assembly  36 , or laser cutter assembly  38  from a target. The target may be, for example, a component  18  or a location along casing  16  where an operator desires to remove casing material. The orientation of laser system  22  can be accomplished by presetting laser system  22  on the surface or by manipulating laser system  22  downhole. The orientation of laser system  22  can be adjusted by an electric motor that can rotate laser system  22  in the direction desired. 
     Logging tool  32  can be used to gather information relating to the position of laser tool body  24  within subterranean well  10 . As an example, logging tool  32  can gather information as laser system  22  travels within subterranean well  10  that can be used to determine the axial location of laser tool body  24  within subterranean well  10 . Logging tool  32  can be a sonic, resistivity, gamma ray, density, or other known type of logging instrument. 
     Joint  34  is located uphole of laser drilling head  28 , and downhole of both laser scanner assembly  36  and laser cutter assembly  38 . In an example embodiment, joint  34  is secured between logging tool  32  and laser scanner assembly  36 . Joint  34  can be used when servicing laser system  22 . As an example, laser system  22  can be disassembled at joint  34  to isolate a portion of laser system  22  to be repaired or replaced. 
     Laser scanner assembly  36  is located uphole of both laser drilling head and joint  34 . Looking at  FIG.  5   , laser scanner assembly  36  includes scanner head  46 . Scanner head  46  can direct scanner laser beam  48 . 
     Scanner head  46  can receive a primary laser beam that is delivered by way of cable bundle  40  to laser scanner assembly  36 . Scanner primary laser beam  50  can extend in a direction that is generally parallel to central axis  52  ( FIG.  1   ) of laser tool body  24 . Scanner head  46  can be positioned to change the direction of scanner primary laser beam  50  so that the scanner laser beam  48  is directed radially outward. 
     As scanner head  46  directs scanner laser beam  48 . Scanner head  46  is a reflector that can move in a circular direction. Scanner head  46  can also move either axially along a length of laser tool body  24  or rotate around central axis  52  of laser tool body  24 . As shown in  FIG.  5   , in an example embodiment, laser scanner assembly  36  includes axial support  54 . Scanner head  46  can move axially along a length of laser tool body  24  by moving along axial support  54 . 
     Axial support  54  can be an elongated member extending in a downhole direction from a support plate  55  of laser scanner assembly  36 . Support plate  55  can stabilize laser scanner assembly  36 , prevent vibration of laser scanner assembly  36  to ensure a quality consistent and stable laser beam. Support plate  55  can be a ring or disk shaped member centered around central axis  52 . Support plate  55  can include optics that release the size, shape, and focus scanner primary laser beam  50  from scanner fiber optic cables  62 . 
     Scanner head  46  indirectly engages axial support  54  through brace member  56  and ring member  58 . Ring member  58  circumscribes axial support  54  and can slide axially along axial support  45 . Brace member  56  extends from ring member  58  to scanner head  46 . Scanner head  46  can rotate relative to axial support  54  in an axial direction. That is, scanner head  46  can pivot in a manner that causes the scanner laser beam to be directed from an uphole direction to a downhole direction along an axially oriented plane. Both the movement of scanner head  46  along axial support  54  and the rotation of scanner head  46  in the axial direction will allow laser scanner assembly  36  to make axial cuts into a component  18 , casing  16 , or other internal surface of subterranean well  10 . 
     Laser scanner assembly  36  further includes scanner rotation coupling  60 . Rotation coupling  60  provides for rotation of scanner head  46  about central axis  52  of laser tool body  24 . Scanner head  46  can rotate in either or both of a clockwise or counter clockwise direction around central axis  52 . 
     In  FIG.  5   , two scanner heads  46  are shown. In alternate embodiments, there may be one scanner head  46  or more than two scanner heads  46 . The number of scanner heads  46  can be determined by the volume of material to be milled, and the depth to which the material is to be cut. 
     Cable bundle  40  contains a plurality of fiber optic cables. Each scanner head  46  will be delivered a separate scanner primary laser beam  50  by way of one of the scanner fiber optic cables  62  from the plurality of fiber optic cables of cable bundle  40 . Scanner fiber optic cables  62  can extend to the support plate of laser scanner assembly  36 . Other of the fiber optic cables will continue past laser scanner assembly  36  to reach laser drilling head  28 . Such other fiber optic cables are not shown in  FIG.  5   . 
     As scanner head  46  is rotated about central axis  52  of laser tool body  24 , scanner head  46  can also move axially along axial support  54 , or can rotate in the axial direction, or both. Such rotation and axial movement will allow laser scanner assembly  36  to make zigzag cuts into a component  18 , casing  16 , or other internal surface of subterranean well  10 . 
     Looking at  FIG.  4   , laser cutter assembly  38  is located uphole of laser drilling head  28 . Looking at  FIG.  6   , laser cutter assembly includes cutter head  64 . In the embodiment of  FIG.  6   , there are four cutter heads  64 . In alternate embodiments there could be one to three cutter heads  64 , or more than four cutter heads  64 . The number of cutter heads  64  can be determined by the volume of material to be milled, and the depth to which the material is to be cut. 
     Cutter head  64  directs cutter laser beam  66 . Cutter head  64  can receive a primary laser beam that is delivered by way of one of the plurality of fiber optic cables of cable bundle  40  to laser cutter assembly  38 . The primary laser beam can provide a beam that can be split between head laser beam  42  and cutter laser beam  66 . Alternately, the primary laser beam can sequentially generate head laser beam  42  and cutter laser beam  66 . 
     Each cutter head  64  will be delivered a separate cutter primary laser beam  68 . Cutter primary laser beam  68  can extend in a direction that is generally parallel to central axis  52  ( FIG.  1   ) of laser tool body  24 . Laser cutter assembly  38  includes cutter lens  74 . Cutter lens  74  s positioned to change the direction of cutter primary laser beam  68  so that cutter laser beam  66  is directed radially outward. 
     Laser cutter assembly  38  includes support ring  72 . Support ring  72  is a ring shaped structural member located at a downhole end of fiber optic cable  70  within laser tool body  24  and centered around central axis  52 . Support ring  72  can stabilize laser cutter assembly  38 , prevent vibration of laser cutter assembly  38  to ensure a quality consistent and stable laser beam. 
     Cutter fiber optic cable  70  is one of the plurality of fiber optic cables of cable bundle  40 . Cutter fiber optic cable  70  extends to support ring  72 . Other of the fiber optic cables will continue past laser cutter assembly  38  to reach laser drilling head  28 . Such other fiber optic cables are not shown in  FIG.  6   . 
     Laser cutter assembly  38  further includes cutter lens ring  80 . Cutter lens ring  80  is a ring shaped structural member within laser tool body  24  and centered around central axis  52 . Cutter optics  82  are mounted on cutter lens ring  80 . Cutter optics  82  are used to shape and size primary laser beam  68 . Cutter lens ring  80  is mounted on rails  84 . Cutter lens ring  80  can slide along rails  84  to size, shape, and focus primary laser beam  68 . The optics for laser cutter assembly  38  are designed to operate with a high powered laser beam with minimum power loss, no reflection, and no heating. As an example, fused quartz can be used to form the optics for laser cutter assembly  38 . 
     Laser cutter assembly  38  further includes cutter rotation coupling  76 . Cutter rotation coupling  76  provides for rotation of cutter head  64  about central axis  52  of laser tool body  24 . Cutter head  64  can rotate in either or both of a clockwise or counter clockwise direction around central axis  52 . 
     As cutter head  64  is rotated about central axis  52  of laser tool body  24 , cutter head  64  will direct cutter laser beam  66  to form cuts in a circumferential pattern along a component  18 , casing  16 , or other internal surface of subterranean well  10 . If laser system  22  is being moved longitudinally within wellbore  12  as cutter head  64  is rotated about central axis  52  of laser tool body  24 , cutter head  64  will direct cutter laser beam  66  to form cuts in a helical pattern along a component  18 , casing  16 , or other internal surface of subterranean well  10 . 
     In certain embodiments, as shown in  FIG.  4   , packer  78  is located radially exterior of laser tool body  24 . Packer  78  is selectively extendable to position and stabilize laser tool body  24  within the subterranean well  10 . Packer  78  can be used to stabilize laser tool body  24  while laser tool body  24  is stationary or while laser tool body  24  is moving axially within wellbore  12 . Packer  78  can be any type of packer capable of expanding downhole. Multiple packers  78  can be arranged at regular intervals along the length of the laser tool body  24  or delivery member  26 , or along both laser tool body  24  and delivery member  26 . The total number of packers  78  can be determined by the length of wellbore  12 . In at least one embodiment, packer  78  is expanded by a means controlled at the surface. 
     In an example of operation, when cutting of a component  18 , casing  16 , or other internal surface of subterranean well  10  is desired, laser system  22  can be lowered into subterranean well  10  on delivery member  26 , as shown in  FIG.  1   . Depending on the target to be cut and removed from wellbore  12 , one or more of laser drilling head  28 , laser scanner assembly  36 , and laser cutter assembly  38  can be used to cut the target. 
     Looking at  FIG.  4   , logging tool  32  can be used to determine when laser drilling head  28  of laser system  22  is approaching component  18 . Orientation member  30  can be used to ensure that laser drilling head  28  of laser system  22  is properly oriented within wellbore  12  relative to component  18 . Laser drilling head  28  can then direct head laser beam  42  beam towards component  18  so that component  18  is cut, chipped, melted, or vaporized by head laser beam  42 . Laser drilling head  28  can continue to direct head laser beam  28  towards component  18  until any remaining pieces of component  18  are sufficiently small to be flushed out of wellbore  12  by fluid circulation within wellbore  12 . 
     In alternate embodiments, one or both of laser scanner assembly  36  and laser cutter assembly  38  can be used to cut casing  16 . Logging tool  32  can be used to determine when laser scanner assembly  36  of laser system  22  is approaching the target region of casing  16 . Orientation member  30  can be used to ensure that laser scanner assembly  36  of laser system  22  is properly oriented within wellbore  12  relative to target region along casing  16 . 
     Laser scanner assembly  36  can first be used to direct scanner laser beam  48  radially outwards. Movement of scanner head  46  along axial support  54  or the rotation of scanner head  46  in the axial direction, or both movement of scanner head  46  along axial support  54  and the rotation of scanner head  46  in the axial direction, will allow laser scanner assembly  36  to make axial cuts into a component  18 , casing  16 , or other internal surface of subterranean well  10 . 
     Alternately, scanner head  46  can be rotated about central axis  52  of laser tool body  24 , while scanner head  46  also moves axially along axial support  54 , or rotates in the axial direction, or both. Such combined rotation and axial movement will allow laser scanner assembly  36  to make zigzag cuts into a component  18 , casing  16 , or other internal surface of subterranean well  10 . A schematic representation of an example zigzag pattern  86  is shown in  FIG.  7 A .  FIG.  7 B  is a schematic representation of such zigzag pattern  86  cut into casing  16 . Zigzag pattern  86  can be cut into casing  16  as laser scanner assembly  36  is moved axially within wellbore  12  so that zigzag pattern  86  spirals around an inner diameter surface of casing  16 . 
     Looking at  FIG.  4   , in alternate embodiments, logging tool  32  can be used to determine when laser cutter assembly  38  of laser system  22  is approaching the target region of casing  16 . Orientation member  30  can be used to ensure that laser cutter assembly  38  of laser system  22  is properly oriented within wellbore  12  relative to target region along casing  16 . 
     Laser cutter assembly  38  can be used in conjunction with or separately from laser scanner assembly  36 . As cutter head  64  is rotated about central axis  52  of laser tool body  24 , cutter head  64  will direct cutter laser beam  66  to form cuts in a circumferential pattern along a component  18 , casing  16 , or other internal surface of subterranean well  10 . If laser system  22  is moved longitudinally within wellbore  12  as cutter head  64  is rotated about central axis  52  of laser tool body  24 , cutter head  64  will direct cutter laser beam  66  to form cuts in a helical pattern along a component  18 , casing  16 , or other internal surface of subterranean well  10 . 
     A schematic representation of an example helical pattern  88  is shown in  FIG.  8 A .  FIG.  8 B  is a schematic representation of such helical pattern  88  cut into casing  16 . Helical pattern  88  can be cut into casing  16  as laser cutter assembly  38  is moved axially within wellbore  12  so that helical pattern  88  spirals around an inner diameter surface of casing  16 . 
     Laser cutter assembly  38  can makes cuts in casing  16  in the same region that was previous cut by laser scanner assembly. The combination of helical pattern  88  being cut over zigzag pattern  86  will result in the target section of casing  16  being cut into small pieces. Looking at  FIG.  9 A  a schematic representation of example helical pattern  88  superimposed on zigzag pattern is shown.  FIG.  9 B  is a schematic representation of such helical pattern  88  superimposed on zigzag pattern and cut into casing  16 . The resulting pieces are sufficiently small to be flushed out of wellbore  12  by fluid circulation within wellbore  12 . 
     Embodiments of this disclosure therefore provide systems and method for milling, cutting and drilling materials in a subterranean well. Laser energy is generated by a generator at the surface and the beam is delivered by way of fiber optics cable to the tool, the beam is manipulated at the laser tool which combines mechanical and optical parts to reconfigure the beam in any shape and size. The combination of the mechanical and optics parts and able to create different laser beam shapes and patterns, utilizing this properties, the proposed solution to mill, cut and drill the pipe and stuck objects by combing these patterns to breakdown the material is very small pieces and remove them from the wellbore. 
     Embodiments of the disclosure described, therefore, are well adapted to carry out the objects and attain the ends and advantages mentioned, as well as others that are inherent. While example embodiments of the disclosure have been given for purposes of disclosure, numerous changes exist in the details of procedures for accomplishing the desired results. These and other similar modifications will readily suggest themselves to those skilled in the art, and are intended to be encompassed within the spirit of the present disclosure and the scope of the appended claims.