Oil well hole treatment device and construction method thereof

Abstract

The invention relates to the field of hole treatment devices and construction methods thereof, in particular to an oil well hole treatment device and a construction method thereof.The oil well hole treatment device comprises a rack, a direction control assembly, a steel wire rope, an equipment frame A, a connection cavity, an equipment frame B, a telescopic air cylinder set, a positioning plate, a filling head, a scraper blade and a drill bit; the top end of the rack is provided with a direction control assembly used for controlling a lower end component to steer so as to repair holes in different directions in an oil well. The direction control assembly comprises a rotating base, outer teeth, a driving gear, a driving motor, an electric wire wheel and a rope penetrating hole. The clamping plates are pushed by the pushing air cylinders to clamp an oil well mouth from the four faces, the repairing part can be flexibly controlled to reach the repairing position of an oil well through the steel wire rope hoisting device in cooperation with the direction control assembly, and filling materials are evenly discharged from the end by pushing the filling materials in the oil well. And filling materials on the surfaces of the hole openings of the trowelling holes of the control scraper.

Description

Technical Field

[0001] This invention relates to the field of hole treatment devices and construction methods, and more particularly to an oil well hole treatment device and construction method. Background Technology

[0002] During oil well operations, due to long construction time or collisions with oil extraction equipment, holes of varying locations and sizes may appear on the well wall. If the hole situation is serious, oil well leakage may occur, affecting the safe production of the oil well.

[0003] However, existing methods for treating oil well holes rely primarily on high-precision operations and equipment, which increases the difficulty and cost of repairs. Furthermore, these methods require step-by-step operations, resulting in long repair times and significantly impacting the normal operation of oil wells.

[0004] Therefore, in order to address the problems of high difficulty, high cost, and long time required for treating oil well holes, an oil well hole treatment device and its construction method can be designed. Summary of the Invention

[0005] To overcome the problems of high difficulty, high cost, and long time required for treating oil well cavities.

[0006] The technical solution of this invention is as follows: an oil well hole treatment device, including a frame, a directional control component, a wire rope, equipment frame A, a connecting cavity, equipment frame B, a telescopic cylinder assembly, a positioning plate, an injection head, a scraper, and a drill bit; a directional control component is installed at the top of the frame to control the lower components to steer, facilitating the repair of holes in different locations within the oil well; the directional control component includes a rotating seat, external gears, a drive gear, a drive motor, an electric reel, and a rope threading hole; external gears are provided on the outer side of the rotating seat; the drive gear is meshed with the side of the external gears; a drive motor is installed at the lower end of the drive gear; an electric reel is fixedly connected to the upper end of the rotating seat; the rotating seat has... It is equipped with a rope threading hole; a steel wire rope is wound around the outside of the electric reel spool; the rope threading hole and the steel wire rope are slidably connected; the lower end of the steel wire rope is fixedly connected to equipment frame A; equipment frame B is set directly below equipment frame A; a connecting cavity is opened between equipment frame A and equipment frame B; a symmetrical telescopic cylinder assembly is installed inside the connecting cavity; a positioning plate is fixedly connected to the outside of the piston rod of the telescopic cylinder assembly; an injection head for injecting filling material into the well hole is installed inside equipment frame A; a scraper for smoothing the filling material on the surface of the hole is installed on the upper side of the inner side of equipment frame B; a drill bit for removing impurities from the well hole is installed on the lower side of the inner side of equipment frame B.

[0007] Preferably, a storage chamber is installed on the upper part of the inner side of the equipment frame A; a feeding port for adding various filler materials according to the ratio is fixedly connected to the upper end of the storage chamber; an electric stirring mechanism for fully mixing the various filler materials is installed inside the storage chamber; a filling port for discharging the uniformly mixed filler material is installed at the lower end of the storage chamber; a control valve is provided at the filling port; when repairing holes, the storage chamber contains various filler materials added in batches according to the ratio at the feeding port, as well as water. The electric stirring mechanism fully mixes the various filler materials, and then the valves of the filling port and the receiving port valve of the injection tank directly below are opened to feed the material in a quantitative manner.

[0008] Preferably, a linear drive structure A is installed on the lower inner side of the equipment frame A; a movable seat is linked to the upper end of the threaded sleeve of the linear drive structure A; a support plate is fixedly connected to the rear side of the upper end of the movable seat; a control cylinder is installed at the rear end of the support plate; a push rod is fixedly connected to the front end of the piston rod of the control cylinder; an injection barrel fixed to the movable seat is sleeved on the front end of the push rod; an injection head is fixedly connected to the front end of the injection barrel; a main discharge hole is opened at the front end of the injection head; auxiliary discharge holes are distributed on the outer surface of the injection head; a receiving port is fixedly connected to the upper end of the injection barrel; a control valve is provided at the receiving port; after the valve is closed, the linear drive structure A moves the movable seat towards the well hole, the injection head penetrates into the hole, and the control cylinder controls the push rod to squeeze the filling material inside the injection barrel, so that the filling material is evenly discharged from the main discharge hole at the end and the auxiliary discharge holes on the side, thus distributing it evenly in the hole. At the same time, with the cooperation of the linear drive structure A, it can slowly withdraw from the hole.

[0009] Preferably, an installation groove is provided on the front side of the inner side of the equipment frame B; a linear drive structure B is fixedly connected to the inner side of the equipment frame B; a long strip scraper is fixedly connected to the front end of the linear drive structure B; the linear drive structure B inside the installation groove controls the scraper to perform reciprocating motion from left to right and from right to left to smooth the filling material on the surface of the hole.

[0010] Preferably, a linear drive structure C is provided on the lower inner side of the equipment frame B; a movable frame is linked to the upper end of the linear drive structure C; the movable frame adopts an inverted "T" shape structure; a rotary motor is installed at the rear end of the movable frame; a drill bit is installed at the front end of the rotary motor; a threaded plate is fixedly connected to the outer surface of the drill bit; during operation, the rotary motor drives the drill bit with the threaded plate on the outside to rotate at high speed, and under the control of the linear drive structure C, the drill bit enters the inner side of the hole to chisel the old material or the interior.

[0011] Preferably, the bottom of each of the four support legs of the frame is equipped with casters to facilitate the movement and positioning of the well hole treatment device; a push cylinder is installed on the outer side of the support leg of the frame; a point-contact circular clamping plate is fitted on the piston rod end of the push cylinder; the push cylinder pushes the clamping plate to clamp the wellhead from four sides, thus making the hole treatment device stably positioned.

[0012] Preferably, the clamping plate is one of square, rectangular, or arc-shaped plates; depending on the shape of the oil well, a suitable clamping plate can be installed, which can make the positioning more stable and ensure the safety of the construction of the oil well hole treatment device.

[0013] 8. The construction method of the oil well cavity treatment device includes the oil well cavity treatment device as described above, and the steps are as follows: Step 1: Move the frame to the top of the oil well, press the brake on the caster wheel to initially position the hole treatment device. Depending on the shape of the oil well, a suitable clamping plate can be installed. Push the cylinder to push the clamping plate to clamp the oil well opening from four sides, thus stabilizing the hole treatment device. Step 2: The hole treatment device can be used in conjunction with the monitoring system. When the monitoring system detects a cracked hole in the inner wall of the oil well during routine inspections, the staff can operate the device from the ground by controlling the direction control component to repair the hole. Step 3: The electric reel starts to rotate, slowly lowering the wire rope through the rope hole. Equipment frame B and equipment frame A slowly enter the oil well until they reach the layer to be repaired. The drive motor controls the upper drive gear and the rotating seat with external teeth on the side to rotate synchronously, turning the repair parts carried by equipment frame B and equipment frame A to the position to be repaired. Step 4: The two sets of telescopic cylinders inside the connecting cavity extend their piston rods simultaneously, allowing the symmetrically distributed positioning plates to contact the well wall for positioning, which facilitates stable and safe construction for subsequent repair work. Step 5: When repairing the hole, drive the injection head to move in the direction of the well hole, and the injection head goes deep into the hole. At the same time, push the filling material inside, so that the filling material is evenly discharged from the end. This can be evenly distributed in the hole. During the discharge process, the injection head can slowly withdraw from the hole. Step 6: After the injection is completed, release the positioning plate, wind up the wire rope, and raise the equipment frame B to the area that was just repaired. Control the positioning plate again to position it, and drive the scraper to perform a reciprocating motion from left to right and from right to left to smooth the filling material on the surface of the hole. Step 7: Install a set of destructive components at the lower end of equipment frame B. This component can be used to destroy and replace the old material in the hole during routine maintenance, or it can be used to repair impurities that were removed from the oil well hole in the early stage.

[0014] The beneficial effects of this invention are: Compared to traditional hole repair methods that rely on high-precision operation and equipment, this invention uses a cylinder to push a clamping plate to clamp the wellhead from four sides, ensuring stable positioning of the hole treatment device and guaranteeing the safety of the operation. A wire rope hoisting device, combined with a direction control component, allows for flexible control of the repair components to reach the repair location on the well. By pushing the internal filling material, it is evenly discharged from the end. During the discharge process, the injection head can slowly withdraw from the hole, ensuring even distribution of the filling material within the hole and preventing uneven filling or voids. This helps improve repair quality and hole sealing. The scraper is driven to reciprocate from left to right and right to left, smoothing the filling material on the hole surface, ensuring a smooth surface and structural stability. The invention is simple in structure, quick, and easy to operate. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the hole treatment device and its construction method of the present invention. Figure 2 The diagram shown is another three-dimensional structural schematic of the hole treatment device and its construction method of the present invention. Figure 3 The diagram shown is a schematic representation of the directional control component of the hole treatment device and construction method of the present invention. Figure 4 The diagram shown is a schematic representation of an embodiment of the hole treatment device and construction method of the present invention. Figure 5 The diagrams shown are schematic representations of Embodiment 2 and Embodiment 3 of the hole treatment device and construction method of the present invention. Figure 6 The diagram shown is a schematic representation of Embodiment 4 of the hole treatment device and construction method of the present invention.

[0016] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Casters; 3. Push cylinder; 4. Clamping plate; 501. Rotating seat; 502. External gear; 503. Drive gear; 504. Drive motor; 505. Electric reel; 506. Rope threading hole; 6. Wire rope; 7. Equipment frame A; 8. Connecting cavity; 9. Equipment frame B; 10. Telescopic cylinder assembly; 11. Positioning plate; 12. Filling head; 13. Scraper; 14. Drill bit; 15. Storage. 16. Feeding port; 17. Electric stirring mechanism; 18. Filling port; 19. Linear drive structure A; 20. Moving seat; 21. Support plate; 22. Control cylinder; 23. Push rod; 24. Injection tank; 25. Receiving port; 26. Main discharge hole; 27. Auxiliary discharge hole; 28. Mounting groove; 29. ​​Linear drive structure B; 30. Linear drive structure C; 31. Moving frame; 32. Rotary motor; 33. Threaded plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please see Figure 1-6 This invention provides an embodiment of an oil well hole treatment device, including a frame 1, a direction control component, a wire rope 6, an equipment frame A7, a connecting cavity 8, an equipment frame B9, a telescopic cylinder assembly 10, a positioning plate 11, an injection head 12, a scraper 13, and a drill bit 14; the top of the frame 1 is equipped with a direction control component for controlling the lower components to steer, facilitating the repair of holes in different locations within the oil well; the direction control component includes a rotating seat 501, an external gear 502, a drive gear 503, a drive motor 504, an electric reel 505, and a rope threading hole 506; the rotating seat 501 has an external gear 502 on its outer side; the external gear 502 is meshed with the drive gear 503 on its side; the drive motor 504 is installed at the lower end of the drive gear 503; the electric reel 505 is fixedly connected to the upper end of the rotating seat 501; the rotating seat 501 has a rope threading hole 506; the electric reel 505 has a wire rope wound around its outer side. Wire rope 6; a sliding connection between the wire rope 6 and the rope hole 506; a fixed connection between the lower end of the wire rope 6 and the equipment frame A7; an equipment frame B9 is set directly below the equipment frame A7; a connecting cavity 8 is opened between the equipment frame A7 and the equipment frame B9; a symmetrical telescopic cylinder assembly 10 is installed inside the connecting cavity 8; a positioning plate 11 is fixedly connected to the outside of the piston rod of the telescopic cylinder assembly 10; an injection head 12 for injecting filling material into the well hole is installed inside the equipment frame A7; a scraper 13 for smoothing the filling material on the surface of the hole is installed on the upper side of the inner side of the equipment frame B9; a drill bit 14 for removing impurities in the well hole is installed on the lower side of the inner side of the equipment frame B9; universal wheels 2 are installed at the lower ends of the four support legs of the frame 1 to facilitate the movement and positioning of the well hole treatment device; a push cylinder 3 is installed on the outer side of the support leg of the frame 1; a point-contact circular clamping plate 4 is fitted onto the piston rod end of the push cylinder 3.

[0019] Example 1: Please refer to Figure 4In this embodiment, a storage cavity 15 is installed on the upper side of the inner side of the equipment frame A7; a feeding port 16 for adding various filling materials according to a ratio is fixedly connected to the upper end of the storage cavity 15; an electric stirring mechanism 17 for fully mixing various filling materials is installed inside the storage cavity 15; a filling port 18 for discharging uniformly mixed filling materials is installed at the lower end of the storage cavity 15; a control valve is provided at the filling port 18; a linear drive structure A19 is installed on the lower side of the inner side of the equipment frame A7; a movable seat 20 is linked to the upper end of the threaded sleeve of the linear drive structure A19; a support plate 21 is fixedly connected to the rear side of the upper end of the movable seat 20; a control cylinder 22 is installed at the rear end of the support plate 21; a push rod 23 is fixedly connected to the front end of the piston rod of the control cylinder 22; an injection barrel 24 fixed to the movable seat 20 is sleeved at the front end of the push rod 23; a filling head 12 is fixedly connected to the front end of the injection barrel 24; a main filling head 12 is opened at the front end of the filling head 12. The injection head 12 has an outlet 26 and auxiliary outlet 27 distributed on its outer surface. The injection barrel 24 is fixedly connected to a receiving port 25. The receiving port 25 is equipped with a control valve. When repairing the hole, the storage chamber 15 contains various filling materials and water added in batches according to the feeding port 16. The electric stirring mechanism 17 fully stirs the various filling materials. Then, the valves of the filling port 18 and the receiving port 25 of the injection barrel 24 below are opened to feed the material in a quantitative manner. After the valve is closed, the linear drive structure A19 moves the moving seat 20 towards the well hole. The injection head 12 penetrates into the hole. The control cylinder 22 controls the push rod 23 to squeeze the filling material inside the injection barrel 24, so that the filling material is evenly discharged from the main outlet 26 at the end and the auxiliary outlet 27 on the side. This can be evenly distributed in the hole. At the same time, with the cooperation of the linear drive structure A19, it can slowly withdraw from the hole.

[0020] Example 2: Please refer to Figure 5 In this embodiment, an installation groove 28 is provided on the front side of the inner side of the equipment rack B9; a linear drive structure B29 is fixedly connected to the inner side of the equipment rack B9; a long strip scraper 13 is fixedly connected to the front end of the linear drive structure B29; the linear drive structure B29 inside the installation groove 28 controls the scraper 13 to perform reciprocating motion from left to right and from right to left to smooth the filling material on the surface of the hole.

[0021] Example 3: Please refer to Figure 5In this embodiment, a linear drive structure C30 is provided on the lower end of the inner side of the equipment frame B9; a movable frame 31 is linked to the upper end of the linear drive structure C30; the movable frame 31 adopts an inverted "T" shaped structure; a rotary motor 32 is installed at the rear end of the movable frame 31; a drill bit 14 is installed at the front end of the rotary motor 32; a threaded plate 33 is fixedly connected to the outer surface of the drill bit 14; during operation, the rotary motor 32 drives the drill bit 14 with the threaded plate 33 on the outer side to rotate at high speed, and under the control of the linear drive structure C30, the drill bit 14 enters the inner side of the hole to chisel the old material or the interior.

[0022] Example 4: Please refer to Figure 5 In this embodiment, the clamping plate 4 is one of a square, rectangular, or arc-shaped plate; depending on the shape of the oil well, a suitable clamping plate 4 can be installed, which can make the positioning more stable and ensure the safety of the construction of the oil well hole treatment device.

[0023] The construction steps for the oil well cavity treatment device are as follows: Step 1: Move the frame 1 to the top of the oil well, press the brake of the caster 2 to initially position the hole treatment device. According to the shape of the oil well, a suitable clamping plate 4 can be installed. Push the cylinder 3 to push the clamping plate 4 to clamp the oil well opening from four sides, thus making the hole treatment device stably positioned.

[0024] Step 2: The hole treatment device can be used in conjunction with the monitoring system. When the monitoring system detects a crack or hole in the inner wall of the oil well during routine inspections, the staff can operate the device from the ground by controlling the direction control component to repair the hole.

[0025] Step 3: The electric reel 505 starts to rotate, and the steel wire rope 6 is slowly lowered from the rope hole 506. The equipment frame B9 and equipment frame A7 slowly enter the oil well until they reach the layer to be repaired. The drive motor 504 controls the upper drive gear 503 and the rotating seat 501 with external teeth 502 on the side to rotate synchronously, turning the repair parts carried by the equipment frame B9 and equipment frame A7 to the position to be repaired.

[0026] Step 4: The two sets of telescopic cylinders 10 inside the connecting cavity 8 extend their piston rods simultaneously, allowing the symmetrically distributed positioning plates 11 to contact the oil well wall for positioning, which facilitates stable and safe construction for subsequent repair work.

[0027] Step 5: When repairing the hole, drive the injection head 12 to move in the direction of the well hole. The injection head 12 goes deep into the hole. At the same time, push the filling material inside, so that the filling material is evenly discharged from the end. This can be evenly distributed in the hole. During the discharge process, the injection head 12 can slowly withdraw from the hole.

[0028] Step 6: After the injection is completed, release the positioning plate 11, wind up the wire rope 6, raise the equipment frame B9 to the area that was just repaired, and control the positioning plate 11 to position again. The scraper 13 is driven to perform reciprocating motion from left to right and from right to left to smooth the filling material on the surface of the hole.

[0029] Step 7: Install a set of destructive components at the lower end of equipment frame B9. This component can be used to destroy and replace the old material in the hole during routine maintenance, or it can be used to repair impurities that were removed from the oil well hole in the early stage.

[0030] Through the above steps, the cylinder 3 pushes the clamping plate 4 to clamp the wellhead from four sides, thus stabilizing the hole treatment device and ensuring the safety of the construction. The wire rope 6 hoisting device, in conjunction with the direction control component, can flexibly control the repair component to reach the repair position of the well. By pushing the internal filling material, the filling material is evenly discharged from the end. During the discharge process, the injection head 12 can slowly withdraw from the hole, which allows the filling material to be evenly distributed in the hole, avoiding uneven filling or voids. This helps to improve the repair quality and the sealing effect of the hole. The scraper 13 is driven to perform reciprocating motion from left to right and from right to left, smoothing the filling material on the surface of the hole, ensuring that the hole surface is smooth and the structure is stable.

Claims

1. An oil well cavity treatment device, comprising a frame (1); characterized in that: It also includes a directional control assembly, a wire rope (6), an equipment frame A (7), a connecting cavity (8), an equipment frame B (9), a telescopic cylinder assembly (10), a positioning plate (11), an injection head (12), a scraper (13), and a drill bit (14); the top of the frame (1) is equipped with a directional control assembly for controlling the lower components to turn, facilitating the repair of holes in different directions within the oil well; the directional control assembly includes a rotating seat (501), an external gear (502), a drive gear (503), a drive motor (504), an electric reel (505), and a rope threading hole (506); the rotating seat (501) has an external gear (502) on its outer side; the external gear (502) is meshed with the drive gear (503) on its side; the drive motor (504) is installed at the lower end of the drive gear (503); the electric reel (505) is fixedly connected to the upper end of the rotating seat (501); the rotating seat (501) A rope hole (506) is provided; a steel wire rope (6) is wound around the outside of the spool of the electric reel (505); the rope hole (506) and the steel wire rope (6) are slidably connected; the lower end of the steel wire rope (6) is fixedly connected to the equipment frame A (7); the equipment frame B (9) is set directly below the equipment frame A (7); a connecting cavity (8) is provided between the equipment frame A (7) and the equipment frame B (9); a telescopic cylinder assembly (10) with front and rear symmetrical arrangement is installed inside the connecting cavity (8); a positioning plate (11) is fixedly connected to the outside of the piston rod of the telescopic cylinder assembly (10); an injection head (12) for injecting filling material into the well hole is installed inside the equipment frame A (7); a scraper (13) for smoothing the filling material on the surface of the hole is installed on the upper side of the inner side of the equipment frame B (9); a drill bit (14) for removing impurities in the well hole is installed on the lower side of the inner side of the equipment frame B (9).

2. The oil well cavity treatment device according to claim 1, characterized in that: A storage chamber (15) is installed on the upper side of the inner side of the equipment frame A (7); a feeding port (16) for adding various filling materials according to the ratio is fixedly connected to the upper end of the storage chamber (15); an electric stirring mechanism (17) for fully mixing various filling materials is installed inside the storage chamber (15); a filling port (18) for discharging the uniformly mixed filling material is installed at the lower end of the storage chamber (15); a control valve is provided at the filling port (18).

3. The oil well cavity treatment device according to claim 1, characterized in that: A linear drive structure A (19) is installed on the lower inner side of the equipment frame A (7); a moving seat (20) is linked to the upper end of the threaded sleeve of the linear drive structure A (19); a support plate (21) is fixedly connected to the upper rear side of the moving seat (20); a control cylinder (22) is installed at the rear end of the support plate (21); a push rod (23) is fixedly connected to the front end of the piston rod of the control cylinder (22); an injection barrel (24) fixed to the moving seat (20) is sleeved at the front end of the push rod (23); a filling head (12) is fixedly connected to the front end of the injection barrel (24); a main discharge hole (26) is opened at the front end of the filling head (12); auxiliary discharge holes (27) are distributed on the outer surface of the filling head (12); a receiving port (25) is fixedly connected to the upper end of the injection barrel (24); a control valve is provided at the receiving port (25).

4. The oil well cavity treatment device according to claim 1, characterized in that: An installation slot (28) is provided on the front side of the inner side of the equipment rack B (9); a linear drive structure B (29) is fixedly connected to the inner side of the equipment rack B (9); a long strip scraper (13) is fixedly connected to the front end of the linear drive structure B (29).

5. The oil well cavity treatment device according to claim 1, characterized in that: A linear drive structure C (30) is provided on the lower inner side of the equipment frame B (9); a moving frame (31) is linked to the upper end of the linear drive structure C (30); the moving frame (31) adopts an inverted "T" shaped structure; a rotating motor (32) is installed at the rear end of the moving frame (31); a drill bit (14) is installed at the front end of the rotating motor (32); a threaded plate (33) is fixedly connected to the outer surface of the drill bit (14).

6. The oil well cavity treatment device according to claim 1, characterized in that: The frame (1) has casters (2) installed at the bottom of the four support legs to facilitate the movement and positioning of the well hole treatment device; a push cylinder (3) is installed on the outer side of the support legs of the frame (1); a point-contact circular clamping plate (4) is fitted on the piston rod end of the push cylinder (3).

7. The oil well cavity treatment device according to claim 6, characterized in that: The clamping plate (4) is one of the following: square, rectangular, or arc-shaped.

8. A construction method for an oil well cavity treatment device, characterized in that... The oil well perforation treatment device according to any one of claims 1-7 comprises the following steps: Step 1: Move the frame (1) to the top of the oil well, press the brake of the caster (2) to initially position the hole treatment device. According to the shape of the oil well, a suitable clamping plate (4) can be installed. Push the cylinder (3) to push the clamping plate (4) to clamp the oil well opening from four sides, so that the hole treatment device is stably positioned. Step 2: The hole treatment device can be used in conjunction with the monitoring system. When the monitoring system detects a cracked hole in the inner wall of the oil well during routine inspections, the staff can operate the device from the ground by controlling the direction control component to repair the hole. Step 3: The electric reel (505) starts to rotate, and the steel wire rope (6) is slowly lowered from the rope hole (506). The equipment frame B (9) and equipment frame A (7) slowly enter the oil well until they reach the layer to be repaired. The drive motor (504) controls the upper drive gear (503) and the rotating seat (501) with external teeth (502) on the side to rotate synchronously, so that the repair parts carried by the equipment frame B (9) and equipment frame A (7) are turned to the position to be repaired. Step 4: The two sets of telescopic cylinders (10) inside the connecting cavity (8) extend their piston rods at the same time, so that the symmetrically distributed positioning plates (11) contact the oil well wall for positioning, which facilitates stable and safe construction for subsequent repair work. Step 5: When repairing the hole, drive the injection head (12) to move in the direction of the well hole. The injection head (12) goes deep into the hole. At the same time, push the filling material inside so that the filling material is evenly discharged from the end. This way, it can be evenly distributed in the hole. During the discharge process, the injection head (12) can slowly withdraw from the hole. Step 6: After the injection is completed, release the positioning plate (11), wind up the wire rope (6), and raise the equipment frame B (9) to the area that was just repaired. Control the positioning plate (11) again to position it. The scraper (13) is driven to perform reciprocating motion from left to right and from right to left to smooth the filling material on the surface of the hole. Step 7: Install a set of destructive components at the lower end of the equipment frame B (9). This component can be used to destroy and replace the old material in the hole during daily maintenance, or it can be used to repair the impurities in the oil well hole that were removed in the early stage.

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