阅读说明：本技术 套管液压整形装置 (Hydraulic shaping device for casing ) 是由 刘晓志 于 2021-09-18 设计创作，主要内容包括：本发明属于油田套管修复领域,具体的说是套管液压整形装置,包括泄压开关结构、锚定器结构、液压推缸结构和整形器结构；所述锚定器结构设置在泄压开关结构的底端；通过泄压开关的上端连接油管或钻杆,一直下入到套管缩径位置,地面注水加压,液压推缸将地面的液压力转换成轴心机械推力,再由液压推缸推动辊旋式整形器向下移动,辊旋式整形器将推力转化成径向扩张力,其头部的辊子辊旋运动,向外挤胀缩径处的套管,使套管产生塑性向外变形复原,采用液压作为动力源,产生巨大的整形力；可对一处或多处以及连续套变井段快速修复,一次管柱基本可以完成修井施工,减少作业工序,提高了修复套管的速度。(The invention belongs to the field of oilfield casing restoration, and particularly relates to a casing hydraulic shaping device which comprises a pressure relief switch structure, an anchor structure, a hydraulic push cylinder structure and a shaper structure; the anchor structure is arranged at the bottom end of the pressure relief switch structure; the upper end of the pressure relief switch is connected with an oil pipe or a drill rod and is lowered to the diameter-reducing position of the casing, water is injected into the ground for pressurization, a hydraulic pushing cylinder converts the hydraulic pressure on the ground into axial mechanical thrust, then the hydraulic pushing cylinder pushes a roller-rotating shaper to move downwards, the roller-rotating shaper converts the thrust into radial expansion force, a roller at the head of the roller-rotating shaper moves in a rotating manner and extrudes and expands the casing at the diameter-reducing position outwards, so that the casing generates plasticity and outwards deforms and recovers, and the hydraulic pressure is used as a power source to generate huge shaping force; the method can be used for quickly repairing one or more parts and continuous casing deformation well sections, one-time pipe column can basically complete well repairing construction, operation procedures are reduced, and the speed of repairing the casing is improved.)

1. Casing hydraulic pressure shaping device, its characterized in that: the hydraulic push cylinder device comprises a pressure relief switch structure (1), an anchor structure (2), a hydraulic push cylinder structure (3) and a shaper structure (4); the anchor structure (2) is arranged at the bottom end of the pressure relief switch structure (1); the hydraulic cylinder pushing structure (3) is arranged at the bottom end of the anchor structure (2); the shaper structure (4) is arranged at the bottom end of the hydraulic push cylinder structure (3);

the pressure relief switch structure (1) comprises a first upper coupling (11), a core rod rubber ring (12), a core rod (13), a sealing ring gland (14), a middle sleeve (17), a lower sleeve (18), a sliding channel pipe (19) and a first lower joint (191); the core rod rubber ring (12) is fixedly connected inside the first upper coupling (11); the core rod (13) is fixedly connected with the side wall of the first upper coupling (11); the sealing ring gland (14) is fixedly connected to the side wall of the core rod (13); an upper sleeve (15) is sleeved on the side wall of the sealing ring gland (14); a first sealing ring (16) is fixedly connected to the side wall of the core rod (13); the middle sleeve (17) is fixedly connected to the side wall of the core rod (13); the lower sleeve (18) is fixedly connected to the side wall of the core rod (13); the slide way pipe (19) is fixedly connected with the side wall of the core rod (13); the first lower joint (191) is fixedly connected to the side wall of the core rod (13); the first lower joint (191) is plugged with the end part of the anchor structure (2).

2. The casing hydraulic reshaping device according to claim 1, wherein: the anchor structure (2) comprises an anchor body (21), a bolt (22), a pressure plate (23), an anchor piston (24), a spring (25) and a rubber ring (26); the anchor body (21) is fixedly connected to the side wall of the first lower joint (191); the anchor piston (24) is slidably connected to the side wall of the anchor body (21); the pressure plate (23) is fixedly connected to the side wall of the pressure relief switch structure (1); the bolt (22) is in threaded connection with the side wall of the anchor main body (21) and penetrates through the pressing plate (23); the spring (25) is fixedly connected to the side wall of the pressure plate (23); the rubber ring (26) is fixedly connected to the side wall of the anchor piston (24); the bottom end of the anchor main body (21) is inserted into the hydraulic cylinder pushing structure (3).

3. The casing hydraulic reshaping device according to claim 2, wherein: the hydraulic cylinder pushing structure (3) comprises a second upper coupling (31), a cylinder pushing rubber ring (32), an upper piston (33), an upper cylinder (34), an upper piston rod (35), a righting ring (36), a second sealing ring (37), a cylinder barrel joint (38), a lower piston (39), a lower piston rod (391), a cylinder barrel lower joint (392) and a second lower joint (393); the second upper coupling (31) is fixedly connected to the side wall of the anchor main body (21); the cylinder pushing rubber ring (32) is fixedly connected to the side wall of the second upper coupling (31); the upper piston (33) is fixedly connected to the side wall of the second upper coupling (31); the upper cylinder barrel (34) is fixedly connected with the side wall of the upper piston (33); the upper piston rod (35) is connected to the side wall of the pressure plate (23) in a sliding manner; the righting ring (36) is fixedly connected with the side wall of the upper piston rod (35); the second sealing ring (37) is fixedly connected with the side wall of the upper piston rod (35); the cylinder barrel joint (38) is fixedly connected with the side wall of the upper piston rod (35); the lower piston (39) is connected with the side wall of the upper piston rod (35) in a sliding manner; the lower piston rod (391) is fixedly connected to the side wall of the lower piston (39); the cylinder barrel lower joint (392) is fixedly connected to the side wall of the lower piston rod (391); the second lower joint (393) is fixedly connected to the side wall of the lower piston rod (391); the bottom end of the second lower joint (393) is spliced with the shaper structure (4).

4. The casing hydraulic truing device of claim 3 wherein: the shaper structure (4) comprises a shaper body (41), a roller (42) and a nose cone (43); the shaper body (41) is connected to the side wall of the second lower joint (393) in a sliding mode; the roller (42) is rotatably connected to the side wall of the shaper body (41); the nose cone (43) is fixedly connected to the bottom end of the shaper body (41).

5. The casing hydraulic truing device of claim 4 wherein: the side wall of the shaper structure (4) is provided with a cleaning unit; the cleaning unit comprises supporting legs (5), a cleaning main body (51), a motor (52), a water tank roller (53), a water tank cover (54), a flow guide pipe (55), a water storage box (56), a flexible plate (57) and a fine hair brush (58); the supporting legs (5) are arranged on the side wall of the shaper structure (4); the cleaning main body (51) is fixedly connected to the end part of the supporting leg (5); the motor (52) is fixedly connected inside the cleaning main body (51); the water tank roller (53) is fixedly connected to the output end of the motor (52); the water tank cover (54) is arranged on the side wall of the water tank roller (53); the guide pipe (55) is fixedly connected inside the water tank roller (53); the water storage box (56) is fixedly connected to the side wall of the draft tube (55); the flexible plate (57) is fixedly connected to the side wall of the water tank roller (53); the fine brush (58) is fixedly connected to the side wall of the flexible plate (57).

6. The hydraulic bushing shaping device according to claim 5, wherein: the bottom end of the water tank roller (53) is fixedly connected with a connecting shaft (59); a rolling shaft (591) is fixedly connected to the side wall of the connecting shaft (59); the side wall of the roller (591) is fixedly connected with absorbent cotton (592); and a water plugging mechanism is arranged in the guide pipe (55).

7. The hydraulic bushing shaping device according to claim 6, wherein: the water plugging mechanism comprises a supporting plate (63), a second elastic pull rope (64), an elastic ball (65), a magnetic extrusion block (66) and a rubber pad (67); the support plate (63) is fixedly connected with the inner side wall of the guide pipe (55); the second elastic pull rope (64) is fixedly connected to the side wall of the supporting plate (63); the elastic ball (65) is fixedly connected to the side wall of the second elastic pull rope (64); the magnetic extrusion block (66) is fixedly connected with the side wall of the draft tube (55); the rubber pad (67) is fixedly connected to the side wall of the magnetic extrusion block (66).

8. The hydraulic bushing shaping device according to claim 7, wherein: the side wall of the draft tube (55) is rotatably connected with a rotating shaft (6); a baffle plate (61) is fixedly connected to the side wall of the rotating shaft (6); the side wall of the baffle (61) is fixedly connected with a first elastic pull rope (62).

Technical Field

The invention relates to the field of oilfield casing pipe repair, in particular to a casing pipe hydraulic shaping device.

Background

The hydraulic shaping of the casing is to repair and shape the casing under the well of the oil field.

In the process of oil field development and production, the underground casing pipe generates local deformation due to the influence of various processes; the hydraulic roller-rotating casing pipe shaping tool mainly comprises a pressure relief switch, an anchor, a hydraulic push cylinder and a roller-rotating shaper.

When the deformed well section of the oil field is repaired, the traditional underground repairing equipment cannot quickly repair one or more continuous casing deformation well sections, the repairing operation procedures are more, and the repairing speed is slower; therefore, a casing hydraulic truing device has been proposed to address the above problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that when the deformed well section of an oil field is repaired, the traditional underground repairing equipment cannot quickly repair one or more continuous casing deformation well sections, the repairing operation procedures are more, and the repairing speed is lower, the invention provides the casing hydraulic shaping device.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a casing hydraulic shaping device, which comprises a pressure relief switch structure, an anchor structure, a hydraulic push cylinder structure and a shaper structure; the anchor structure is arranged at the bottom end of the pressure relief switch structure; the hydraulic cylinder pushing structure is arranged at the bottom end of the anchor structure; the shaper structure is arranged at the bottom end of the hydraulic push cylinder structure;

the pressure relief switch structure comprises a first upper coupling, a core rod rubber ring, a core rod, a sealing ring gland, a middle sleeve, a lower sleeve, a chute pipe and a first lower coupling; the core rod rubber ring is fixedly connected inside the first upper coupling; the core rod is fixedly connected with the side wall of the first upper coupling; the sealing ring gland is fixedly connected to the side wall of the core rod; the side wall of the sealing ring gland is sleeved with an upper sleeve; a first sealing ring is fixedly connected to the side wall of the core rod; the middle sleeve is fixedly connected to the side wall of the core rod; the lower sleeve is fixedly connected to the side wall of the core rod; the slide way pipe is fixedly connected with the side wall of the core rod; the first lower joint is fixedly connected to the side wall of the core rod; the first lower joint is inserted into the end part of the anchor structure; the function of the pressure relief switch is that water in a tubing string on the upper part of the tool needs to be drained repeatedly for a plurality of times in the field construction process and needs to be closed reliably, and the pressure relief switch is used for achieving the purpose.

The anchor structure comprises an anchor main body, a bolt, a pressure plate, an anchor piston, a spring and a rubber ring; the anchor body is fixedly connected to the side wall of the first lower joint; the anchor piston is slidably connected to the side wall of the anchor body; the pressure plate is fixedly connected to the side wall of the pressure relief switch structure; the bolt is in threaded connection with the side wall of the anchor main body and penetrates through the pressing plate; the spring is fixedly connected to the side wall of the pressure plate; the rubber ring is fixedly connected to the side wall of the anchor piston; the bottom end of the anchor main body is inserted into the hydraulic cylinder pushing structure; the whole system and the oil well casing are relatively fixed, the anchor main body group is used as a supporting point of power, the reliable downward acting force of the hydraulic thruster is guaranteed, and the system is guaranteed to be reliably fixed with the inner wall of the casing by being formed by connecting a plurality of sections of anchor main bodies in series during actual application.

The hydraulic cylinder pushing structure comprises a second upper coupling, a cylinder pushing rubber ring, an upper piston, an upper cylinder barrel, an upper piston rod, a centering ring, a second sealing ring, a cylinder barrel joint, a lower piston rod, a cylinder barrel lower joint and a second lower joint; the second upper coupling is fixedly connected to the side wall of the anchor main body; the cylinder pushing rubber ring is fixedly connected to the side wall of the second upper coupling; the upper piston is fixedly connected to the side wall of the second upper coupling; the upper cylinder barrel is fixedly connected with the side wall of the upper piston; the upper piston rod is connected to the side wall of the pressure plate in a sliding manner; the righting ring is fixedly connected with the side wall of the upper piston rod; the second sealing ring is fixedly connected with the side wall of the upper piston rod; the cylinder barrel joint is fixedly connected with the side wall of the upper piston rod; the lower piston is connected with the side wall of the upper piston rod in a sliding manner; the lower piston rod is fixedly connected to the side wall of the lower piston; the lower joint of the cylinder barrel is fixedly connected to the side wall of the lower piston rod; the second lower joint is fixedly connected to the side wall of the lower piston rod; the bottom end of the second lower joint is spliced with the shaper structure; the hydraulic push cylinder is a power source of the whole system, and generates huge downward pushing force to push the roller-rotating shaper to repair the sleeved change part, and the actual tool can increase the series connection quantity of the hydraulic cylinders according to the requirement, and the structure is shown as the shaper structure.

The shaper structure comprises a shaper body, a roller and a nose cone; the shaper body is connected to the side wall of the second lower joint in a sliding manner; the rollers are rotatably connected to the side wall of the shaper body; the head cone is fixedly connected to the bottom end of the shaper body; the grooves embedded in the left side of the I-shaped spherical roller are rotationally rolled, so that the friction resistance is small, the labor is saved, the stress on the sleeve is uniform, the sleeve is not damaged, and the well repairing effect is good.

The side wall of the shaper structure is provided with a cleaning unit; the cleaning unit comprises supporting legs, a cleaning main body, a motor, a water tank roller, a water tank cover, a flow guide pipe, a water storage box, a flexible plate and a fine hairbrush; the supporting legs are arranged on the side wall of the shaper structure; the cleaning main body is fixedly connected to the end part of the supporting leg; the motor is fixedly connected inside the cleaning main body; the water tank roller is fixedly connected to the output end of the motor; the water tank cover is arranged on the side wall of the water tank roller; the guide pipe is fixedly connected inside the water tank roller; the water storage box is fixedly connected to the side wall of the flow guide pipe; the flexible plate is fixedly connected to the side wall of the water tank roller; the fine hairbrush is fixedly connected to the side wall of the flexible plate; the surface of the equipment can be treated cleanly, and dust and impurities are prevented from entering the well.

The bottom end of the water tank roller is fixedly connected with a connecting shaft; a rolling shaft is fixedly connected to the side wall of the connecting shaft; the side wall of the rolling shaft is fixedly connected with absorbent cotton; a water plugging mechanism is arranged inside the flow guide pipe; the water on the surface of the equipment can be diluted and cleaned.

The water plugging mechanism comprises a supporting plate, a second elastic pull rope, an elastic ball, a magnetic extrusion block and a rubber pad; the supporting plate is fixedly connected to the inner side wall of the flow guide pipe; the second elastic pull rope is fixedly connected to the side wall of the supporting plate; the elastic ball is fixedly connected to the side wall of the second elastic pull rope; the magnetic extrusion block is fixedly connected to the side wall of the flow guide pipe; the rubber pad is fixedly connected to the side wall of the magnetic extrusion block; the passage of moisture inside the control water box roller can be made by the influence of centrifugal force.

The side wall of the flow guide pipe is rotatably connected with a rotating shaft; the side wall of the rotating shaft is fixedly connected with a baffle; a first elastic pull rope is fixedly connected to the side wall of the baffle; the water inside the reinforcing control water tank roll can be allowed to pass.

The invention has the advantages that:

1. the upper end of the pressure relief switch is connected with an oil pipe or a drill rod through the matching action among a pressure relief switch structure, an anchor structure, a hydraulic push cylinder structure and a shaper structure, the upper end of the pressure relief switch is lowered into the diameter reducing position of a casing all the time, water is injected into the ground for pressurization, the hydraulic push cylinder converts the hydraulic pressure on the ground into axial mechanical thrust, the hydraulic push cylinder pushes a roller-rotating shaper to move downwards, the roller-rotating shaper converts the thrust into radial expansion force, a roller at the head of the roller-rotating shaper moves in a rotating manner, the casing at the diameter reducing position is extruded outwards, the casing generates plasticity and outwards deforms and recovers, and the hydraulic pressure is used as a power source to generate huge shaping force; the method can be used for quickly repairing one or more parts and continuous casing deformation well sections, one-time pipe column can basically complete well repairing construction, operation procedures are reduced, and the speed of repairing the casing is improved.

2. According to the cleaning device, through the arranged cleaning unit, when the device goes into a well, the motor drives the water tank roller to rotate, water in the water tank roller is conveyed to the interior of the flexible plate due to the influence of centrifugal force, the water permeates into the side wall of the fine hair brush through the small hole formed in the flexible plate, the fine hair brush cleans the surface of the device, dust and impurities on the device are cleaned, the water is cleaned through the absorbent cotton, the cleaning effect of the surface of the device is improved, finally, the water blocking mechanism is opened when the water tank roller rotates through the water blocking mechanism arranged in the water tank roller, and when the water tank roller stops rotating, water is blocked in the water tank roller through the water blocking mechanism, so that the water in the water tank roller is controlled to flow.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a perspective view of a cleaning body according to a first embodiment;

fig. 2 is a schematic structural view of a pressure relief switch according to the first embodiment;

FIG. 3 is a schematic view of an anchor according to the first embodiment;

FIG. 4 is a schematic structural view of a hydraulic push cylinder according to the first embodiment;

fig. 5 is a schematic structural diagram of a shaper according to the first embodiment;

FIG. 6 is a schematic view of a cleaning main body according to the first embodiment;

FIG. 7 is an enlarged view taken at A of FIG. 6;

FIG. 8 is an enlarged view of FIG. 7 at B;

fig. 9 is a sectional view of the elastic ball according to the second embodiment.

In the figure: 1. a pressure relief switch structure; 11. a first upper coupling; 12. a core bar rubber ring; 13. a core bar; 14. a sealing ring gland; 15. sleeving; 16. a first sealing ring; 17. a middle sleeve; 18. sleeving; 19. a chute tube; 191. a first lower connector; 2. an anchor structure; 21. an anchor body; 22. a bolt; 23. pressing a plate; 24. an anchor piston; 25. a spring; 26. a rubber ring; 3. a hydraulic cylinder pushing structure; 31. a second upper coupling; 32. pushing a cylinder rubber ring; 33. an upper piston; 34. an upper cylinder barrel; 35. an upper piston rod; 36. a righting ring; 37. a second sealing ring; 38. a cylinder barrel joint; 39. a lower piston; 391. a lower piston rod; 392. a cylinder barrel lower joint; 393. a second lower joint; 4. a shaper structure; 41. a shaper body; 42. a roller; 43. a nose cone; 5. supporting legs; 51. cleaning the main body; 52. a motor; 53. a water tank roller; 54. a water tank cover; 55. a flow guide pipe; 56. a water storage box; 57. a flexible board; 58. a fine brush; 59. a connecting shaft; 591. a roller; 592. absorbent cotton; 6. a rotating shaft; 61. a baffle plate; 62. a first elastic pull rope; 63. a support plate; 64. a second elastic pull rope; 65. an elastic ball; 66. a magnetic extrusion block; 67. a rubber pad; 7. a magnetic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-8, a casing hydraulic shaping device includes a pressure relief switch structure 1, an anchor structure 2, a hydraulic push cylinder structure 3, and a shaper structure 4; the anchor structure 2 is arranged at the bottom end of the pressure relief switch structure 1; the hydraulic cylinder pushing structure 3 is arranged at the bottom end of the anchor structure 2; the shaper structure 4 is arranged at the bottom end of the hydraulic cylinder pushing structure 3;

the pressure relief switch structure 1 comprises a first upper coupling 11, a core rod rubber ring 12, a core rod 13, a sealing ring gland 14, a middle sleeve 17, a lower sleeve 18, a sliding channel pipe 19 and a first lower coupling 191; the core rod rubber ring 12 is fixedly connected inside the first upper coupling 11; the core rod 13 is fixedly connected with the side wall of the first upper coupling 11; the sealing ring gland 14 is fixedly connected to the side wall of the core rod 13; an upper sleeve 15 is sleeved on the side wall of the sealing ring gland 14; a first sealing ring 16 is fixedly connected to the side wall of the core rod 13; the middle sleeve 17 is fixedly connected with the side wall of the core rod 13; the lower sleeve 18 is fixedly connected with the side wall of the core rod 13; the slide channel pipe 19 is fixedly connected with the side wall of the core rod 13; the first lower joint 191 is fixedly connected to the side wall of the core rod 13; the first lower joint 191 is inserted into the end of the anchor structure 2; when the hydraulic roller rotary sleeve shaping tool works, the hydraulic roller rotary sleeve shaping tool mainly comprises a pressure relief switch structure 1, an anchor structure 2, a hydraulic push cylinder structure 3 and a shaper structure 4, the four parts are connected through a drill rod thread, an oil pipe thread is arranged at the upper end of the pressure relief switch and is used for connecting an oil pipe, the pressure relief switch structure comprises two parts, when a first upper coupling 11 and the hydraulic push cylinder structure 3 move upwards, a pressure relief hole in the hydraulic push cylinder structure 3 is blocked by two rotating shafts 6 in an upper sleeve and is at a closed position, and when the first upper coupling 11 and the hydraulic push cylinder structure 3 move downwards, the state is shown in figure 2, the first upper coupling is at an open position, the function of the pressure relief switch is that water in a column at the upper part of the tool needs to be drained repeatedly and needs to be closed reliably in the field construction process, and the structure is shown in figure 2.

The anchor structure 2 includes an anchor body 21, a bolt 22, a pressure plate 23, an anchor piston 24, a spring 25, and a rubber ring 26; the anchor body 21 is fixedly connected to the side wall of the first lower joint 191; the anchor piston 24 is slidably connected to a side wall of the anchor body 21; the pressure plate 23 is fixedly connected to the side wall of the pressure relief switch structure 1; the bolt 22 is screwed on the side wall of the anchor main body 21 and penetrates through the pressing plate 23; the spring 25 is fixedly connected to the side wall of the pressure plate 23; the rubber ring 26 is fixedly connected to the side wall of the anchor piston 24; the bottom end of the anchor main body 21 is inserted into the hydraulic cylinder pushing structure 3; when the hydraulic thruster works, the outer surface of the anchor main body 21 is uniformly distributed with the transverse shaper structures 4, when the internal pressure is greater than the external pressure, the shaper structures 4 extend outwards, when the internal pressure and the external pressure are basically the same, the support legs 5 return the shaper structures 4 to the original positions, the anchor main body 21 is used for supporting the inner surface of the casing by the shaper structures 4, so that the whole system and the oil well casing are relatively fixed, the anchor main body 21 group is used as a support point of power to ensure that the hydraulic thruster can reliably exert the acting force downwards, and the anchor main body 21 is formed by connecting a plurality of sections of anchor main bodies 21 in series during actual application to ensure that a system tool and the inner wall of the casing are reliably fixed, wherein the structure is shown in fig. 3;

the hydraulic cylinder pushing structure 3 comprises a second upper coupling 31, a second cylinder pushing rubber ring 32, an upper piston 33, an upper cylinder 34, an upper piston rod 35, a centering ring 36, a second sealing ring 37, a cylinder barrel joint 38, a lower piston 39, a lower piston rod 391, a cylinder barrel lower joint 392 and a second lower joint 393; the second upper collar 31 is fixedly connected to the side wall of the anchor main body 21; the cylinder pushing rubber ring 32 is fixedly connected to the side wall of the second upper coupling 31; the upper piston 33 is fixedly connected with the side wall of the second upper coupling 31; the upper cylinder barrel 34 is fixedly connected with the side wall of the upper piston 33; the upper piston rod 35 is connected to the side wall of the pressure plate 23 in a sliding manner; the righting ring 36 is fixedly connected with the side wall of the upper piston rod 35; the second sealing ring 37 is fixedly connected with the side wall of the upper piston rod 35; the cylinder barrel joint 38 is fixedly connected with the side wall of the upper piston rod 35; the lower piston 39 is slidably connected to the side wall of the upper piston rod 35; the lower piston rod 391 is fixedly connected to the side wall of the lower piston 39; the cylinder lower joint 392 is fixedly connected to the side wall of the lower piston rod 391; the second lower connector 393 is fixedly connected to the side wall of the lower piston rod 391; the bottom end of the second lower connector 393 is spliced with the shaper structure 4; when the hydraulic pushing cylinder works, the hydraulic pushing cylinder is of an anchor structure 2-stage series structure and is composed of an anchor structure 2-stage cylinder system with a static outside and an anchor structure 2-stage piston rod system with a movable inside, when the pressure of internal liquid is increased, the anchor structure 2-stage piston is stressed at the same time and pushes the piston rod downwards, and when the lower joint is pushed by external force, the piston system can be pushed back to the original state. The hydraulic push cylinder is a power source of the whole system, and generates a huge downward pushing force to push the roller-rotating shaper to repair the deformation part, and the actual tool can increase the series connection quantity of the hydraulic cylinders according to the requirement, and the structure is shown in fig. 4;

the shaper structure 4 comprises a shaper body 41, a roller 42 and a nose cone 43; the shaper body 41 is slidably connected to the side wall of the second lower connector 393; the roller 42 is rotatably connected to the side wall of the shaper body 41; the nose cone 43 is fixedly connected to the bottom end of the shaper body 41; when the device works, the outer surface of the head at the lower end of the shaper is uniformly embedded with spherical rollers, the spherical rollers are mainly contacted with the deformed part of the sleeve and extrude and expand the reduced diameter part outwards, the grooves embedded at the left of the spherical rollers rotate and roll, the friction resistance is small, the labor is saved, the sleeve is uniformly stressed, the sleeve is not damaged, the well repairing effect is good, and the structure is shown in figure 5;

the side wall of the shaper structure 4 is provided with a cleaning unit; the cleaning unit comprises supporting legs 5, a cleaning main body 51, a motor 52, a water tank roller 53, a water tank cover 54, a flow guide pipe 55, a water storage box 56, a flexible plate 57 and a fine hair brush 58; the supporting legs 5 are arranged on the side wall of the shaper structure 4; the cleaning main body 51 is fixedly connected with the end part of the supporting leg 5; the motor 52 is fixedly connected inside the cleaning main body 51; the water tank roller 53 is fixedly connected with the output end of the motor 52; the water tank cover 54 is provided on a side wall of the water tank roller 53; the guide pipe 55 is fixedly connected inside the water tank roller 53; the water storage box 56 is fixedly connected with the side wall of the draft tube 55; the flexible plate 57 is fixedly connected to the side wall of the water tank roller 53; the fine brush 58 is fixedly connected to the side wall of the flexible plate 57; when the device works, before the device goes into a well, the device is cleaned, the water tank cover 54 is opened to fill water into the water tank roller 53, the device is placed in a manner of aligning with a hole in the middle of the cleaning main body 51, the motor 52 works, the output end of the motor 52 drives the water tank roller 53 to rotate, a hole groove formed in the water tank roller 53 is communicated with the flexible plate 57, water in the water tank roller 53 flows into the flexible plate 57 under the influence of centrifugal force, small holes are formed in the side wall of the flexible plate 57, the fine hairbrush 58 is wetted through the small holes, the surface of equipment is cleaned through the fine hairbrush 58, the surface of the equipment can be cleaned, and dust and impurities are prevented from entering the well;

the bottom end of the water tank roller 53 is fixedly connected with a connecting shaft 59; a roller 591 is fixedly connected to the side wall of the connecting shaft 59; the side wall of the roller 591 is fixedly connected with absorbent cotton 592; a water plugging mechanism is arranged inside the guide pipe 55; when the water-absorbing device works, the output end of the motor 52 drives the water tank roller 53 to rotate, the water tank roller 53 drives the connecting shaft 59 to rotate, meanwhile, the connecting shaft 59 drives the rolling shaft 591 to rotate, the water-absorbing cotton 592 on the side wall of the rolling shaft 591 dilutes the water on the surface of equipment, and the water on the surface of the equipment can be diluted completely through the water-blocking mechanism and the water-absorbing cotton 592.

The water plugging mechanism comprises a supporting plate 63, a second elastic pull rope 64, an elastic ball 65, a magnetic extrusion block 66 and a rubber pad 67; the support plate 63 is fixedly connected with the inner side wall of the guide pipe 55; the second elastic pull rope 64 is fixedly connected to the side wall of the supporting plate 63; the elastic ball 65 is fixedly connected with the side wall of the second elastic pull rope 64; the magnetic extrusion block 66 is fixedly connected to the side wall of the draft tube 55; the rubber pad 67 is fixedly connected to the side wall of the magnetic extrusion block 66; during operation, when water tank roller 53 rotated, No. two elastic pull ropes 64 extended under the centrifugal force effect of elastic ball 65, and elastic ball 65 left the lateral wall of rubber pad 67, and the inside moisture flow of water tank roller 53 was inside flexible sheet 57, and when water tank roller 53 stopped rotating, No. two elastic pull ropes 64 retracted, drove elastic ball 65 extrusion and was in the lateral wall of rubber pad 67, through the influence of centrifugal force, can make the lapse of the inside moisture of control water tank roller 53.

The side wall of the draft tube 55 is rotatably connected with a rotating shaft 6; a baffle 61 is fixedly connected to the side wall of the rotating shaft 6; a first elastic pull rope 62 is fixedly connected to the side wall of the baffle 61; during operation, when water tank roller 53 rotated, an elasticity stay cord 62 was stretched, and baffle 61 was extruded by water, rotated through pivot 6 and opened honeycomb duct 55, and water flowed out from the lateral wall of baffle 61, and when water tank roller 53 stopped rotating, an elasticity stay cord 62 was retracted, drove baffle 61 and resets, blocked up water, can make the lapse of the inside moisture of reinforcing control water tank roller 53.

Example two

Referring to fig. 9, in a first comparative example, as another embodiment of the present invention, a plurality of sets of magnetic members 7 are fixed inside the elastic ball 65; the magnetic part 7 and the magnetic extrusion block 66 are attracted; the magnetic parts 7 are respectively fixedly connected to the inner side and the outer side of the elastic ball 65; during operation, the water tank roller 53 rotates, the second elastic pull rope 64 stretches, the elastic ball 65 is separated from the side wall of the rubber pad 67, moisture flows into the flexible plate 57 from the side wall of the elastic ball 65, when the water tank roller 53 stops rotating, the second elastic pull rope 64 pulls the elastic ball 65 to reset, meanwhile, the magnetic part 7 in the elastic ball 65 and the magnetic extrusion block 66 attract each other, and the resetting speed of the elastic ball 65 is accelerated.

The working principle is that when the well is put in, the connection sequence of the tool is sequentially a roller rotary shaper, a hydraulic push cylinder, an anchor and a pressure relief switch from bottom to top, the tool is put into the well in sequence, the upper end of the pressure relief switch is connected with an oil pipe or a drill rod and is put into a sleeve diameter reducing position all the time, water is injected into the ground for pressurization, the hydraulic push cylinder converts the hydraulic pressure on the ground into axial mechanical thrust, then the roller rotary shaper is pushed by the hydraulic push cylinder to move downwards, the roller rotary shaper converts the thrust into radial expansion force, a roller at the head of the roller rotary shaper moves in a roller rotary manner and extrudes and expands the sleeve at the diameter reducing position outwards to enable the sleeve to generate plasticity and outwards deform and recover, when the hydraulic push cylinder reaches the maximum working stroke, the hydraulic push cylinder stops working, the pipe column is lifted up and down from the ground to release the pressure, one-time operation is completed, if the pipe column is still subjected to pressure relief, the operation procedure is repeated, if the shaping can not be realized, pulling out the tubular column, replacing the small-size shaper for step-by-step shaping, repeating the operation, and pulling out the tubular column and the tool after casing deformation repair; before the device goes into a well, the device is cleaned, a water tank cover 54 is opened to fill water into the water tank roller 53, the device is placed in a hole in the middle of a cleaning main body 51 in an aligned mode, the motor 52 works, the output end of the motor 52 drives the water tank roller 53 to rotate, a hole groove formed in the water tank roller 53 is communicated with the flexible plate 57, under the influence of centrifugal force, water in the water tank roller 53 flows into the flexible plate 57, small holes are formed in the side wall of the flexible plate 57, the fine hairbrush 58 is wetted through the small holes, the surface of equipment is cleaned through the fine hairbrush 58, the surface of the equipment can be cleaned, and dust and impurities are prevented from entering the well; the output end of the motor 52 drives the water tank roller 53 to rotate, the water tank roller 53 drives the connecting shaft 59 to rotate, meanwhile, the connecting shaft 59 drives the rolling shaft 591 to rotate, the water absorption cotton 592 on the side wall of the rolling shaft 591 dilutes the water on the surface of the equipment, and the water on the surface of the equipment can be diluted completely through the water plugging mechanism and the water absorption cotton 592; when the water tank roller 53 rotates, the second elastic pull rope 64 extends under the action of the centrifugal force of the elastic ball 65, the elastic ball 65 leaves the side wall of the rubber pad 67, the water in the water tank roller 53 flows into the flexible plate 57, when the water tank roller 53 stops rotating, the second elastic pull rope 64 retracts to drive the elastic ball 65 to extrude the side wall of the rubber pad 67, and the water in the water tank roller 53 can be controlled to pass through under the influence of the centrifugal force; when the water tank roller 53 rotates, the elastic pull rope 62 is stretched, the baffle 61 is extruded by water, the guide pipe 55 is opened by rotating the rotating shaft 6, water flows out of the side wall of the baffle 61, when the water tank roller 53 stops rotating, the elastic pull rope 62 retracts to drive the baffle 61 to reset, water is blocked, and the water inside the water tank roller 53 can be enhanced and controlled to pass.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.