CN116989208B - Casing repairing device and using method thereof - Google Patents
Casing repairing device and using method thereof Download PDFInfo
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- CN116989208B CN116989208B CN202311212847.1A CN202311212847A CN116989208B CN 116989208 B CN116989208 B CN 116989208B CN 202311212847 A CN202311212847 A CN 202311212847A CN 116989208 B CN116989208 B CN 116989208B
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- sleeve
- main body
- oil well
- cylindrical main
- rope
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003129 oil well Substances 0.000 claims abstract description 79
- 238000005452 bending Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 40
- 230000009193 crawling Effects 0.000 claims description 18
- 238000010408 sweeping Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000007767 bonding agent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 16
- 238000001125 extrusion Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000219098 Parthenocissus Species 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the technical field of mechanical equipment, in particular to a sleeve patching device and a using method thereof; the device comprises a positioning table which can extend into an oil well, wherein a rope I is connected to the positioning table, the other end of the rope I extends out of a wellhead from the inner side of the oil well, two ends of a cylindrical main body of the positioning table are respectively connected with a sleeve and an extruder, the sleeve is connected with the cylindrical main body through a plurality of ropes II, and corrugated bending is arranged on the sleeve; the method for repairing the pipeline by using the sleeve repairing device comprises the following steps: the positioning table and the sleeve are vertically placed at the leakage position of the oil well together; after the sleeve is sleeved on the outer side of the cylindrical main body, starting the extruder to extrude the corrugated bending on the sleeve, so that the sleeve is fully attached to the inner side surface of the oil well; the sleeve pipe that the cross-section of this application is oval annular can slightly crooked to make tubular body and sleeve pipe together move down to the depths of crooked well bore below, increase the restoration ability to the oil well pipeline.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a sleeve patching device and a using method thereof.
Background
The sleeve repair is one of important methods for sleeve repair, and the sleeve repair has the significance of maintaining and repairing damaged and leaked conveying pipelines, so that the normal use functions of the damaged and leaked conveying pipelines are recovered, the whole pipelines are not required to be replaced, and the purposes of increasing production benefits and production safety are realized;
the casing repairing technology is suitable for pipelines for treating problems such as casing corrosion holes, perforation, fracture cracks, screw thread failure, error perforation remediation and the like, and comprises a casing plugging treatment and an expansion pipe technology by using chemical materials;
the working principle of the expansion pipe technology is that after a steel casing pipe is lowered to a well section needing to be repaired in the well, a high-pressure pump is used for pressing the steel casing pipe into an oil pipe on the ground to push an expansion cone to move upwards, so that the diameter of the expansion pipe is enlarged, when the expansion cone ascends to the upper end of the expansion pipe, an oil jacket is communicated, the pump pressure descends, the expansion pipe completes integral expansion and is tightly attached to the casing pipe, and the sealing and anchoring of the expansion pipe and the original well casing pipe are realized through a sealing piece outside the pipe, so that the purposes of repairing the jacket leakage and plugging a blasthole are achieved;
however, the above technology has high requirements on the perpendicularity of the casing in the extending direction, and absolute vertical wells are rare in the petroleum and gas industry; if facing the situation is: the trajectory of the well bore portion deviates farther from the vertical, which can result in the casing failing to move deeper below the curved well bore, affecting subsequent repairs to the petroleum well tubing.
Disclosure of Invention
The invention aims to provide a casing repairing device for repairing a petroleum well pipeline, which can move equipment and a casing downwards to a depth below a bent well body together, and a use method of the casing repairing device for repairing the petroleum well pipeline, so that the maintenance efficiency of the well pipeline is improved, and the economic benefit is improved.
In order to achieve the above purpose, the invention provides a sleeve patching device, which comprises a positioning table capable of extending into an oil well, wherein a rope I is connected to the positioning table, the other end of the rope I extends out from the inner side of the oil well to the outside of a wellhead, and two ends of a cylindrical main body of the positioning table are respectively connected with a sleeve and an extruder;
the sleeve may be made of steel or steel with a chemical adhesive attached to the outside.
The rope I is used in the application to rely on the dead weight of locating bench, make the locating bench can smoothly move up and move down in oil well depths, because the length of locating bench is less, make the equipment main part can move down to the depths of crooked well bore below.
The sleeve is connected with the cylindrical main body through the plurality of ropes II, the cylindrical main body is provided with the rotating roller, one end of the rope II is wound on the rotating roller, the other end of the rope II is detachably connected with the middle part of the inner side of the sleeve, and the sleeve is provided with corrugated bends;
through controlling the roller rotation, carry out the rolling to rope II for sheathed tube middle part can cover in the tube-shape main part outside to follow-up extrusion to the sleeve pipe makes its inflation to lateral surface and the laminating of oil well medial surface, realizes repairing the effect that the cover leaked.
Wherein, the corrugated bending is in an unextracted state, the section of the sleeve is elliptical ring-shaped, at the moment, the two ends of the sleeve in the long axis direction are abutted against the inner side surface of the oil well, and the positioning of the sleeve in the oil well is realized through friction generated by contact.
In this state, the annular casing having an elliptical cross section can be slightly bent, so that the cylindrical body and the casing together move down deep below the bent well bore.
In addition, the corrugated bending device is in a fully extruded state, and the unfolded corrugated bending device and the sleeve can jointly form a circular section, and the outer side face of the circular section is attached to the inner side face of the oil well.
Through the mode of bending the ripple from the sleeve pipe inboard and carrying out the extruded, realize making sleeve pipe inflation to the effect of lateral surface and oil well medial surface laminating, repair the cover hourglass operation, pulling rope I at last, the tubular main part that moves up carries out abundant extrusion to the sleeve pipe, accomplishes the installation of sleeve pipe in the oil well, utilizes the sleeve pipe to fully shelter from the shutoff to oil well leakage department.
The squeezer of this application can constitute by a plurality of pneumatic cylinders, and a plurality of pneumatic cylinders are fixed mounting respectively in the inboard of tube-shape main part, and the installation direction of pneumatic cylinder is mutually perpendicular with the axis direction of tube-shape main part, fixedly connected with extrusion head on the movable end of pneumatic cylinder, and the round hole III that the extrusion head can run through tube-shape main part lateral part and sleeve pipe medial surface butt.
A plurality of hydraulic cylinders are synchronously started to fully extrude the sleeve;
the heating component can be arranged on the extrusion head according to the material and the thickness of the sleeve, so that the sleeve is easy to shape and deform.
Further, on the basis of the scheme, the sleeve can be formed by connecting at least two splicing assemblies end to end, and after the two adjacent splicing assemblies are connected through buckling edges I and II which are arranged at the end parts of each other in a buckling manner, the two adjacent splicing assemblies are firmly pressed and connected together through hydraulic equipment.
Through the scheme, the convenience of production and processing of the sleeve is improved, and the sleeve can keep an overall elliptical cross-section state in an initial state after the splicing assembly of the sleeve is assembled.
The application provides a method for repairing pipelines by using the sleeve repairing device, which comprises the following steps:
step one: customizing a sleeve according to the diameter size of the oil well;
step two: the positioning table and the sleeve are vertically placed at the leakage position of the oil well together;
step three: the rotating roller is controlled to rotate, the rope II is wound, and the sleeve is transferred to a position close to the cylindrical main body;
step four: after the sleeve is sleeved on the outer side of the cylindrical main body, starting the extruder to extrude the corrugated bending on the sleeve, so that the part of the lower side of the sleeve is fully attached to the inner side surface of the oil well;
step five: pulling rope I, shifting up the tubular main body, periodically starting the extruder, fully extruding the sleeve, completing the installation of the sleeve in the oil well, and shielding and plugging the leakage part of the oil well by using the sleeve.
The invention has the beneficial effects that: for the condition that has the higher casing that requires to transfer in the oil well of the straightness that hangs down in its extending direction among the prior art comparatively difficult, this application uses the lateral part to be provided with the casing that the ripple was bent for the casing moves down in the oil well the in-process that moves down, can keep the cross-section to be oval annular, thereby make the casing can have certain bending deformation ability in the bending department of moving down to the oil well bore, later fully extrude the ripple bending on the casing again, make the casing can move down to the depths below the bending bore, increase the restoration ability to the oil well pipeline.
Drawings
The following drawings are only intended to illustrate and explain the present invention, wherein:
FIG. 1 is a schematic view of the overall structure of a casing patch device of the present invention;
FIG. 2 is a schematic view of the structure of the sleeve of the present invention;
FIG. 3 is a schematic view of the structure of the creeper drive mechanism and the cone docking mechanism of the present invention;
FIG. 4 is a schematic view of the conical sleeve, hinge block II and retaining ring of the present invention;
FIG. 5 is a schematic view of the torsion spring and retaining ring of the present invention;
FIG. 6 is a schematic view of the structure of the tubular body, the sweeping head, the slot end and the compression end of the present invention;
FIG. 7 is a schematic view of the structure of the tubular body, the winding motor and the rotating roller of the present invention;
FIG. 8 is a schematic view of the structure of the barrel and the extruder of the present invention;
FIG. 9 is a schematic view of the structure of the extruder of the present invention;
FIG. 10 is an enlarged view of a portion of the cone docking mechanism of the present invention;
fig. 11 is a partial enlarged view of the creeper driving mechanism of the present invention.
In the figure: 1. a positioning table; 11. a cylindrical main body; 111. a multi-section positioning cylinder; 12. a hinge block I; 13. receiving a sliding rail; 14. a winding motor; 15. a rotating roller; 16. a tensioning assembly; 2. a flexible connection mechanism; 21. a conical sleeve; 22. a hinging block II; 23. a rotating shaft; 24. a torsion spring; 25. a fixing ring; 3. a crawling driving mechanism; 31. a moving wheel; 311. a groove; 32. a rotating seat; 33. a connecting rod; 34. an inner gear ring; 35. a rotating motor I; 4. a conical surface butt joint mechanism; 41. a connecting platform; 42. an elastic connecting piece; 43. a cone top; 44. rope bolt holes; 5. a sleeve; 51. a splice assembly; 52. a buckling edge I; 53. a buckling edge II; 54. bending the corrugation; 55. a magnetic sheet; 56. an electromagnet; 57. a rope II; 6. an extruder; 61. a sweeping head; 611. a slot end; 612. a compacting end; 62. a flip arm; 63. extending the connecting arm; 64. a hydraulic rod; 65. a turntable; 66. a sliding seat; 67. rotating a motor II; 68. a screw rod; 69. and (3) rotating the motor III.
Detailed Description
In order to realize the purpose of providing a casing repairing device capable of repairing a petroleum well pipeline by moving equipment and a casing 5 downwards to the depth below a bent well body together and a using method of the casing repairing device, so as to increase the maintenance efficiency of the well pipeline and improve the economic benefit;
the invention provides a sleeve repairing device, which comprises a positioning table 1 capable of extending into an oil well, wherein a rope I is connected to the positioning table 1, the other end of the rope I extends out of a wellhead from the inner side of the oil well, and two ends of a cylindrical main body 11 of the positioning table 1 are respectively connected with a sleeve 5 and an extruder 6;
wherein, the sleeve 5 can be made of steel or steel with chemical adhesive attached to the outer side, thereby increasing the plugging and repairing effects of the sleeve 5 on the oil well pipeline.
The rope I is used in the application, and the dead weight of the positioning table 1 is relied on, so that the positioning table 1 can smoothly move up and down in the deep part of a petroleum well, and the equipment main body can move down to the deep part below a bent well body due to the small length of the positioning table 1.
The sleeve 5 is connected with the cylindrical main body 11 through a plurality of ropes II 57, the cylindrical main body 11 is provided with the rotating roller 15, one end of the rope II 57 is wound on the rotating roller 15, the other end of the rope II 57 is detachably connected to the middle part of the inner side of the sleeve 5, and the sleeve 5 is provided with a corrugated bending 54;
wherein, the rope of the application can be a chain or a steel rope;
through control roller 15 rotation, carry out the rolling to rope II 57 for the middle part of sleeve pipe 5 can cover in the tube-shape main part 11 outside, so that follow-up extrusion to sleeve pipe 5 makes its inflation to lateral surface and the laminating of oil well medial surface, realizes repairing the effect that the cover leaked.
In the corrugated bending 54 of the present application, the cross section of the sleeve 5 is in an elliptical ring shape in an unextruded state, and at this time, both ends of the sleeve 5 in the long axis direction are abutted against the inner side surface of the oil well, and positioning of the sleeve 5 in the oil well is realized by friction generated by contact.
In this state, the casing 5 having an elliptical ring shape in cross section can be slightly bent, so that the cylindrical body 11 together with the casing 5 moves down to a depth below the bent well bore.
In the case of the above-described bellows bending 54, the developed bellows bending 54 and the casing 5 can form a circular cross section together in a state of being sufficiently pressed, and the outer side surface of the circular cross section is bonded to the inner side surface of the oil well.
The corrugated bending 54 is extruded from the inner side of the sleeve 5, the sleeve 5 is expanded to the effect that the outer side is attached to the inner side of the oil well, sleeve leakage repairing operation is carried out, the rope I is pulled up finally, the cylindrical main body 11 is moved up, the sleeve 5 is fully extruded, the sleeve 5 is installed in the oil well, and the leakage of the oil well is fully blocked by the sleeve 5.
Specific embodiments of the present invention are described below.
Referring to fig. 1 to 2, an embodiment will be described in which the sleeve patching device according to the present invention is used to control the sleeve 5 to move toward the tubular body 11 and guide the sleeve 5 to be opened by the rope ii 57 so as to perform the subsequent pressing operation of the sleeve 5 by using the press 6:
one end of a rope II 57 is wound on the rotating roller 15, and the other end of the rope II 57 is detachably connected to the middle part of the inner side of the sleeve 5;
specific: the winding motor 14 for driving the rotary roller 15 to rotate is arranged in the cylindrical main body 11, an electromagnet 56 is arranged at one end of the rope II 57 connected with the sleeve 5, and the electromagnet 56 is detachably connected with the magnetic sheet 55 in the sleeve 5 through magnetic coupling.
The magnetic sheet 55 may be made of iron-cobalt-nickel material.
Wherein, the middle part in the outside of tube-shape main part 11 is equipped with round hole I, and behind the round hole I was run through from the outside of tube-shape main part 11 to rope II 57, link to each other with the commentaries on classics roller 15 again.
By starting a plurality of winding motors 14, the winding operation is carried out on the rope II 57 by utilizing the rotation of the rotating roller 15, and as the other end of the rope II 57 is detachably connected to the middle position of the inner side of the sleeve 5, the sleeve 5 is gradually covered on the outer side of the cylindrical main body 11 in the winding process of the rope II 57;
in the process, the rope II 57 penetrates through the round hole I from the outer side of the cylindrical main body 11 and then is connected with the rotary roller 15; the rope II 57 plays a role in guiding the sleeve 5 to be opened, so that the sleeve 5 can be subjected to subsequent extrusion operation by using the extruder 6 arranged at the lower end of the cylindrical main body 11, the sleeve 5 can be attached to the inner side surface of an oil well, and the purpose of plugging and repairing the oil well pipeline is realized.
Referring to fig. 2, an embodiment of improving convenience in production and processing of the sleeve 5 and enabling the sleeve 5 to have an ability to automatically maintain an overall elliptical ring-shaped cross-section by using the sleeve patch device provided by the present invention will be described:
the sleeve 5 of the present application is formed by connecting at least two splicing components 51 end to end, and after the two adjacent splicing components 51 are connected by buckling edges I52 and II 53 which are arranged at the end parts of each other, the two adjacent splicing components are firmly pressed and connected together by hydraulic equipment.
The scheme of using two splicing assemblies 51 to form the sleeve 5 can improve the convenience of production and processing of the sleeve 5;
in addition, the sleeve 5 can also have the capability of automatically maintaining the overall elliptical ring-shaped cross-section state in the initial state after the splicing and assembly of the sleeve 5.
Referring to fig. 1, a first embodiment using a squeezer 6 in a casing patch device provided by the present invention is described:
the extruder 6 of this application comprises a plurality of pneumatic cylinders, and a plurality of pneumatic cylinders are fixed connection respectively in the inboard of tube-shape main part 11, and the installation direction of pneumatic cylinder is mutually perpendicular with the axis direction of tube-shape main part 11, fixedly connected with extrusion head on the movable end of pneumatic cylinder, the round hole III that extrusion head can run through tube-shape main part 11 lateral part and sleeve pipe 5 medial surface butt.
The hydraulic cylinders are synchronously started to fully squeeze the sleeve 5, so that the sleeve 5 is fully attached to the inner side surface of the oil well; the heating component can be arranged on the extrusion head according to the material and thickness of the sleeve 5, so that the sleeve 5 is easy to shape and deform;
referring to fig. 1-2, specific steps of pipeline patching using the sleeve patching device provided by the invention are described:
step one: customizing a sleeve 5 according to the diameter size of an oil well;
step two: a lower rope I is used for vertically placing the positioning table 1 and the sleeve 5 at the leakage position of the oil well;
step three: starting a winding motor 14, controlling the rotating roller 15 to rotate, winding the rope II 57, and transferring the sleeve 5 to a position close to the cylindrical main body 11;
step four: after the sleeve 5 is sleeved on the outer side of the cylindrical main body 11, starting the extruder 6 to extrude the corrugated bending 54 on the sleeve 5, so that the part of the lower side of the sleeve 5 is fully attached to the inner side surface of the oil well;
step five: pulling rope I, moving up tubular body 11, periodically starting extruder 6, fully extruding sleeve 5 to utilize the chemical binder that sleeve 5 outside set up, make sleeve 5 fully laminate in the oil well medial surface, accomplish sleeve 5 and shelter from shutoff operation to oil well leakage department.
Referring to fig. 1 to 5, an embodiment is described in which a flexible connection mechanism 2 and a crawling driving mechanism 3 are added to a casing patch device provided by the present invention, so that the movement capability of a tubular body 11 at a well bending portion of an oil well is improved, and the whole device can be moved deep below the bending well is described:
the two ends of the cylindrical main body 11 are respectively provided with a crawling driving mechanism 3, and the outer side surface of a moving wheel 31 on the crawling driving mechanism 3 is abutted with the inner side surface of an oil well;
the outer side of the moving wheel 31 is provided with a plurality of grooves 311 to increase the contact effect with the inner side of the well.
By controlling the rotation of the moving wheel 31, the moving ability of the tubular body 11 at the bent portion of the well body is improved, so that the whole device can be moved deep under the bent well body.
Further, the crawling driving mechanism 3 is connected with the positioning table 1 through the flexible connecting mechanism 2, so that the positioning table 1 can smoothly penetrate into an inclined extension area in an oil well.
By using the flexible connecting mechanism 2, the contact effect between the crawling driving mechanism 3 and the inner side surface of the oil well can be increased, and the overall movement driving stability of the equipment is improved.
With reference to fig. 1, 3-6, a specific structural representation of a further improved arrangement of a flexible connection mechanism 2 using a casing patch device provided by the present invention, and a specific embodiment that increases the ease of movement of the device as a whole deep below a curved well bore, will be described.
The main body of the flexible connecting mechanism 2 is a conical sleeve 21, a plurality of hinging blocks I12 are welded on the outer side of the cylindrical main body 11, a plurality of hinging blocks II 22 are welded on the conical sleeve 21, and the hinging blocks I12 and II 22 are connected through a tensioning assembly 16;
specific: the main part of tensioning subassembly 16 is the spring, and the both ends of spring are fixedly connected with U type head respectively, and the U type head of both sides rotates with articulated piece I12 and articulated piece II 22 respectively and is connected.
By using the tensioning assembly 16, the flexible connecting mechanisms 2 at two sides of the cylindrical main body 11 can deflect slightly relative to the cylindrical main body 11, so that the moving capability of the cylindrical main body 11 at the bent position of the well body of the oil well is improved, and the convenience of moving the whole device to the depth below the bent well body is improved.
With reference to fig. 1, 3 and 11, a specific structural representation of a creeper drive mechanism 3 using a further improved arrangement of casing patch devices provided by the present invention, and a specific embodiment of increasing the ability of a tubular body 11 to move around a well bore bend, will be described.
The main body of the crawling driving mechanism 3 is a rotating seat 32, a movable wheel 31 is rotatably arranged on the rotating seat 32, a rotating motor I35 for driving the movable wheel 31 to rotate is arranged on the rotating seat 32, and the rotating seat 32 is connected with a conical surface sleeve 21 through two connecting rods 33;
specific: the output shaft of the rotary motor I35 is connected with a driving gear through a flat key or a wedge key, and the driving gear is connected with an inner gear ring 34 fixedly connected with the side part of the movable wheel 31 through meshing transmission, so that the movable wheel 31 is driven to rotate by starting the rotary motor I35.
A plurality of crawling driving mechanisms 3 are arranged at equal angle intervals on the side part of the conical surface sleeve 21;
one end of a connecting rod 33 is rotationally connected with a rotating seat 32, the other end of the connecting rod 33 is rotationally connected with a rotating shaft 23 on a conical sleeve 21, and a tensioning assembly is arranged in the conical sleeve 21;
specific: the main body of the tensioning assembly is a torsion spring 24, two ends of the torsion spring 24 are respectively and fixedly connected with a fixed ring 25, the fixed ring 25 on one side is embedded and fixedly connected in the conical sleeve 21, and the fixed ring 25 on the other side is fixedly connected with a connecting rod 33.
Wherein, the rotating seat 32, the two connecting rods 33 and the conical sleeve 21 form a parallelogram mechanism, thereby increasing the stable rotating effect of the rotating seat 32.
By means of the tensioning assembly, the plurality of crawling driving mechanisms 3 can always have a trend of moving towards the abutting direction of the inner side face of the oil well, and the moving capability of the cylindrical main body 11 at the bent position of the well body of the oil well is improved.
Referring to fig. 1 and 3, an embodiment in which the sleeve patching device according to the present invention is used to cover the sleeve 5 at one end of the tubular body 11 by guiding the cone tip 43 during the process of transferring the sleeve 5 to the position close to the tubular body 11 will be described:
the inner side of one end of the cylindrical main body 11 connected with the sleeve 5 is fixedly connected with a conical surface butting mechanism 4, the main body of the conical surface butting mechanism 4 is a connecting platform 41, a conical top 43 is arranged at the top of the connecting platform 41, the side part of the connecting platform 41 is fixedly connected with an elastic connecting sheet 42 at equal angle intervals, and the other end of the elastic connecting sheet 42 is fixedly connected with the inner side surface of the cylindrical main body 11;
the use of the resilient tabs 42 can increase the movement effect of the apparatus at the well bore bend.
The cone tip 43 can be abutted against the inner edge of the lower end of the sleeve 5, and the rope ii 57 penetrates through the round hole ii in the cone tip 43, extends toward the inside of the cylindrical body 11, and is connected to the roller 15.
In the process of transferring the control sleeve 5 to a position close to the cylindrical main body 11, the sleeve 5 can be covered at one end of the cylindrical main body 11 under the guiding action of the cone top 43 so as to perform the subsequent sleeve 5 extrusion pipe expansion operation.
The cone roof 43 is provided with a rope keyhole 44, and one end of a rope I can be connected to the rope keyhole 44 so as to control the position of the device in the oil well.
Referring to fig. 8, an embodiment of increasing the positioning effect of the device in the well and the positioning effect of the casing 5 in the well by using the casing patch device provided by the present invention will be described:
a plurality of multi-section positioning cylinders 111 are fixedly connected in the cylindrical main body 11, the plurality of multi-section positioning cylinders 111 are installed in a staggered mode, and the movable end of each multi-section positioning cylinder 111 can penetrate through a round hole IV on the side of the cylindrical main body 11;
the auxiliary ejection arm arranged on the movable end of the multi-section positioning cylinder 111 can be abutted against the inner wall of the oil well or the inner side surface of the sleeve 5, so that the positioning effect of equipment in the oil well and the positioning effect of the sleeve 5 in the oil well are improved, and the use stability of the equipment is improved.
Referring to fig. 1, 6 and 8-9, a second embodiment of the use of the extruder 6 in a casing patch device provided by the present invention is described:
the main body of the extruder 6 is a sliding seat 66, and the sliding seat 66 is connected between the storage sliding rails 13 on two sides of the inside of the cylindrical main body 11 in a sliding manner;
a turntable 65 is rotatably arranged on the sliding seat 66, an extension connecting arm 63 is fixedly connected to the turntable 65 in a welding manner, a turning arm 62 is rotatably arranged at the end part of the extension connecting arm 63, a sweeping head 61 is fixedly connected to the turning arm 62, a cutting end 611 at one side of the sweeping head 61 can be abutted against the inner side surface of an oil well, and a pressing end 612 at the other side of the sweeping head 61 can be abutted against the inner side surface of the sleeve 5;
the pressing end 612 contacts with the inner side surface of the sleeve 5 to realize the pressing operation of the sleeve 5.
The grooving end 611 is contacted with the inner side surface of the oil well, an annular concave edge is processed on the inner side surface of the oil well, and under the action of the subsequent pressing end 612, the outer side surface of the sleeve 5 can be abutted with the annular concave edge processed on the inner side surface of the oil well by the grooving end 611, so that the installation effect of the sleeve 5 is improved.
Wherein, the axis of the connecting column of the body of the extension connecting arm 63 can be coaxially arranged with the rotation axis of the turntable 65, thereby increasing the movement control effect of the sweeping head 61.
A hydraulic rod 64 is arranged on the extension connecting arm 63, and a sliding column fixedly arranged on the movable end of the hydraulic rod 64 is in sliding connection with a sliding chute arm at the side part of the overturning arm 62;
a rotating motor II 67 for driving the turntable 65 to rotate is arranged on the sliding seat 66;
the hydraulic rod 64 is started, the sweeping head 61 and the overturning arm 62 are controlled to rotate together relative to the extension connecting arm 63, so that the grooving end 611 or the compacting end 612 is abutted with the inner side surface of the oil well or the inner side surface of the sleeve 5, the groove scraping treatment of the inner side surface of the oil well and the full extrusion of the sleeve 5 are realized, and the sleeve 5 is fully attached to the inner side surface of the oil well.
The motor ii 67 is turned so that the turntable 65 drives the invert arm 62 and the extension arm 63 to rotate together so that the slotted end 611 and the hold-down end 612 can fully abut against the inner side of the well or the inner side of the casing 5.
Referring to fig. 8, an embodiment of the effect of driving the movement of the extension apparatus at a well bend using the casing patch device provided by the present invention will be described:
the screw rod 68 is rotatably mounted on the inner side of the cylindrical main body 11, the screw rod 68 is connected with the sliding seat 66 through a threaded transmission, and the rotating motor III 69 for driving the screw rod 68 to rotate is mounted on the inner side of the cylindrical main body 11.
The rotating motor III 69 is started to drive the screw rod 68 to rotate, so that the sliding seat 66 slides between the storage sliding rails 13 on two sides of the inside of the cylindrical main body 11, storage treatment of the extension connecting arm 63 is realized, and obstruction to movement of equipment at a well bending position caused by the extension connecting arm 63 in a protruding state is avoided.
Referring to fig. 1-11, specific steps for pipeline patching using the further improved sleeve patching device provided by the invention are described:
step one: customizing a sleeve 5 according to the diameter size of an oil well;
step two: using a crawling driving mechanism 3 to vertically put the positioning table 1 to the leakage position of the oil well;
step three: the rotary roller 15 is controlled to rotate, the rope II 57 is wound, the sleeve 5 is covered at one end of the cylindrical main body 11 under the guiding action of the conical surface butting mechanism 4, and the sleeve 5 is transferred to a position close to the cylindrical main body 11;
step four: after the sleeve 5 is sleeved on the outer side of the cylindrical main body 11, starting the extruder 6, and extruding the corrugated bending 54 on the sleeve 5 by using the sweeping head 61 so that the part of the lower side of the sleeve 5 is fully attached to the inner side surface of the oil well;
step five: after the sleeve 5 is preliminarily fixed on the inner side surface of the oil well, the electromagnet 56 is turned off, the cylindrical main body 11 is moved upwards by utilizing the crawling driving mechanisms 3, the squeezer 6 is continuously started, the sleeve 5 is fully squeezed by the sweeping head 61, and the sleeve 5 is fully attached to the inner side surface of the oil well by utilizing the chemical adhesive arranged on the outer side of the sleeve 5, so that the sleeve 5 shields and plugs the leakage part of the oil well.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a sleeve pipe patch device, includes locating platform (1) that can stretch into the oil well, be connected with rope I on locating platform (1), the other end of rope I is followed the oil well and is laterally outwards visited its characterized in that: two ends of the cylindrical main body (11) of the positioning table (1) are respectively connected with a sleeve (5) and an extruder (6);
the sleeve (5) is connected with the cylindrical main body (11) through a plurality of ropes II (57), a rotating roller (15) is arranged on the cylindrical main body (11), one end of each rope II (57) is wound on the corresponding rotating roller (15), the other end of each rope II (57) is detachably connected to the middle part of the inner side of the sleeve (5), and a corrugated bending (54) is arranged on the sleeve (5);
the section of the sleeve (5) is elliptical and annular in the state that the corrugated bending (54) is not extruded, and at the moment, two ends of the sleeve (5) in the long axis direction are abutted against the inner side surface of the oil well;
the corrugated bending (54) can form a circular section together with the sleeve (5) when the corrugated bending (54) is extruded from inside to outside, and the outer side surface of the circular section is attached to the inner side surface of the oil well;
the two ends of the cylindrical main body (11) are respectively provided with a crawling driving mechanism (3), the outer side face of a moving wheel (31) on the crawling driving mechanism (3) is abutted against the inner side face of an oil well, and the crawling driving mechanism (3) is connected with the positioning table (1) through a flexible connecting mechanism (2) so that the positioning table (1) can smoothly penetrate into an inclined extension area in the oil well;
the main body of the flexible connecting mechanism (2) is a conical sleeve (21), a plurality of hinging blocks I (12) are fixedly connected to the outer side of the cylindrical main body (11), a plurality of hinging blocks II (22) are fixedly connected to the conical sleeve (21), and the hinging blocks I (12) and the hinging blocks II (22) are connected through a tensioning assembly (16);
the main body of the tensioning assembly (16) is a spring, two ends of the spring are respectively and fixedly connected with U-shaped heads, and the U-shaped heads on two sides are respectively and rotatably connected with the hinging block I (12) and the hinging block II (22);
the main body of the crawling driving mechanism (3) is a rotating seat (32), the moving wheel (31) is rotatably arranged on the rotating seat (32), a rotating motor I (35) for driving the moving wheel (31) to rotate is arranged on the rotating seat (32), the rotating seat (32) is connected with the conical surface sleeve (21) through two connecting rods (33), and a plurality of crawling driving mechanisms (3) are arranged on the side part of the conical surface sleeve (21) at equal angle intervals;
one end of the connecting rod (33) is rotationally connected with the rotating seat (32), the other end of the connecting rod (33) is rotationally connected with the rotating shaft (23) on the conical sleeve (21), and a tensioning assembly is arranged in the conical sleeve (21);
the main body of the tensioning assembly is a torsion spring (24), two ends of the torsion spring (24) are respectively and fixedly connected with a fixed ring (25), one side of the fixed ring (25) is embedded and fixedly connected in the conical sleeve (21), and the other side of the fixed ring (25) is fixedly connected with a connecting rod (33);
the inner side of one end of the cylindrical main body (11) connected with the sleeve (5) is fixedly connected with a conical surface butt joint mechanism (4), the main body of the conical surface butt joint mechanism (4) is a connecting platform (41), a conical top (43) is arranged at the top of the connecting platform (41), elastic connecting pieces (42) are fixedly connected to the side parts of the connecting platform (41) at equal angle intervals, and the other end of each elastic connecting piece (42) is fixedly connected with the inner side surface of the cylindrical main body (11);
the cone top (43) can be abutted against the inner edge of the lower end of the sleeve (5), and the rope II (57) penetrates through a round hole II on the cone top (43) and then extends to the inner side of the cylindrical main body (11) to be connected with the rotary roller (15);
the main body of the extruder (6) is a sliding seat (66), and the sliding seat (66) is connected between the storage sliding rails (13) at two sides of the inside of the cylindrical main body (11) in a sliding manner;
a rotary table (65) is rotatably arranged on the sliding seat (66), an extension connecting arm (63) is fixedly connected to the rotary table (65), a turning arm (62) is rotatably arranged at the end part of the extension connecting arm (63), a sweeping head (61) is fixedly connected to the turning arm (62), a grooving end (611) at one side of the sweeping head (61) can be abutted to the inner side surface of an oil well, and a pressing end (612) at the other side of the sweeping head (61) can be abutted to the inner side surface of the sleeve (5);
a hydraulic rod (64) is arranged on the extension connecting arm (63), and a sliding column fixedly arranged on the movable end of the hydraulic rod (64) is in sliding connection with a sliding chute arm at the side part of the overturning arm (62);
a rotating motor II (67) for driving the turntable (65) to rotate is arranged on the sliding seat (66);
a screw rod (68) is rotatably arranged on the inner side of the cylindrical main body (11), the screw rod (68) is connected with the sliding seat (66) through a thread transmission, and a rotating motor III (69) for driving the screw rod (68) to rotate is arranged on the inner side of the cylindrical main body (11);
an electromagnet (56) is arranged at the end part of the rope II (57), and the electromagnet (56) is detachably connected with a magnetic sheet (55) in the sleeve (5) through magnetic coupling.
2. The casing patch device of claim 1, wherein: the middle part of the outside of the tubular main body (11) is provided with a round hole I, and the rope II (57) penetrates through the round hole I from the outside of the tubular main body (11) and then is connected with the rotating roller (15).
3. The casing patch device of claim 1, wherein: the sleeve (5) is formed by connecting at least two splicing assemblies (51) end to end, and two adjacent splicing assemblies (51) are tightly connected together after being buckled through a buckling edge I (52) and a buckling edge II (53) which are arranged at the end parts of each splicing assembly.
4. A method of line patch using the sleeve patch device of claim 1, comprising the steps of:
step one: customizing a sleeve (5) according to the diameter size of the oil well;
step two: a crawling driving mechanism (3) is used for vertically placing the positioning table (1) at the leakage position of the oil well;
step three: the rotating roller (15) is controlled to rotate, the rope II (57) is wound, the sleeve (5) is covered at one end of the cylindrical main body (11) under the guiding action of the conical surface butting mechanism (4), and the sleeve (5) is transferred to a position close to the cylindrical main body (11);
step four: after the sleeve (5) is sleeved on the outer side of the cylindrical main body (11), starting the extruder (6), and extruding the corrugated bending (54) on the sleeve (5) by using the sweeping head (61) so that the part of the lower side of the sleeve (5) is fully attached to the inner side surface of the oil well;
step five: after the sleeve (5) is preliminarily fixed on the inner side surface of the oil well, the electromagnet (56) is closed, the cylindrical main body (11) is moved upwards by utilizing the crawling driving mechanisms (3), the squeezer (6) is continuously started, the sleeve (5) is fully squeezed by the sweeping head (61), and the chemical bonding agent arranged on the outer side of the sleeve (5) is utilized, so that the sleeve (5) is fully attached to the inner side surface of the oil well, and the blocking and plugging operation of the sleeve (5) on the leakage part of the oil well is completed.
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| CN202311212847.1A CN116989208B (en) | 2023-09-20 | 2023-09-20 | Casing repairing device and using method thereof |
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| CN202311212847.1A CN116989208B (en) | 2023-09-20 | 2023-09-20 | Casing repairing device and using method thereof |
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