A deepwater wellbore wall repair device

Abstract

The application relates to a deep water well wall repairing device, which comprises a stretching-in part and a repairing part connected at the end of the stretching-in part, the repairing part comprises a first supporting part, a detection positioning part, a drilling part and a grouting part are arranged on the first supporting part, the drilling part is arranged opposite to the grouting part, the detection positioning part is used for positioning a damaged position of an inner wall of a deep water well, the whole repairing part is supported under the damaged position through the first supporting part, and the drilling part is aligned with the damaged position, the drilling part drills the damaged position, after drilling is completed, the grouting part is aligned with the drilling position through 180-degree rotation to carry out grouting, the repairing device can realize two functions of drilling and grouting, multiple times of repairing in the deep water well are saved, repairing time is shortened, repairing efficiency is improved, and repairing cost is reduced.

Description

Technical Field

[0001] This invention relates to a device for repairing the well wall of a deep water well. Background Technology

[0002] During the drilling of deep wells, the drilling rod generates significant impact force on the well wall, causing damage to parts of the well wall. If this damage is not addressed promptly, the well wall is prone to collapse, necessitating repair. Generally, after a leak occurs in the well wall, a hole is first drilled at the leak location, followed by directional grouting for repair. Currently, deep well wall repair primarily involves drilling equipment to the damaged area, as illustrated by patent number CN202220072275.6, entitled "A Deep..." A well wall drilling device is used to send equipment into the interior of a deep well, drill holes using drilling components, and then inject grout using a directional sealing device after drilling is completed. For example, patent number CN201610240488.4, entitled "A Directional Sealing Device for Deep Well Walls", or patent number CN202110012295.4, entitled "A Directional Sealing Device for Stabilizing Deep Well Walls", are both used to align with the drilling position and repair any leaks.

[0003] Currently, the equipment used for repairing deep well walls only has a single function. The problem is not very obvious for repairing deep wells with larger diameters. For deep wells with smaller diameters, it is necessary to insert the equipment into the deep well in stages and in sequence, which makes the entire well wall repair time long, the steps cumbersome, the efficiency low, and the repair cost high. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a deep well wall repair device that can perform both drilling and grouting functions, saving the need for multiple deep well penetrations for repair, shortening repair time, improving repair efficiency, and reducing repair costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a deep well wall repair device, comprising an insertion component and a repair component connected to the end of the insertion component. The repair component includes a first supporting component, on which a detection and positioning component, a drilling component, and a grouting component are provided. The drilling component and the grouting component are arranged opposite to each other. The detection and positioning component is used to locate the damaged area on the inner wall of the deep well. The first supporting component supports the entire repair component below the damaged area and aligns the drilling component with the damaged area. The drilling component drills a hole in the damaged area. After drilling is completed, the grouting component is rotated 180° to align with the drilling position and perform grouting.

[0006] Furthermore, the first spreading component includes a first base, on which a lateral drive component and an oblique drive component are provided. The lateral drive component and the oblique drive component synchronously drive multiple top plates to support the well wall. The lateral drive component includes a bracket provided on the first base, on which a bidirectional threaded rod is provided. A first driven gear is provided in the middle of the bidirectional threaded rod, and the first driven gear is configured with a driving gear. A moving block is provided on the bidirectional threaded rod. The top plate is connected to the moving block through a sliding frame. One end of the top plate is hinged to the sliding frame, and the other end of the top plate is connected to the oblique drive component through a hinge rod. The oblique drive component drives the hinge rod to support the other end of the top plate against the well wall.

[0007] Furthermore, the oblique drive component includes multiple sets of oblique grooves and transverse grooves on the first base. The oblique grooves communicate with the transverse grooves. The transverse grooves are located directly below the bracket. A first worm is provided in the transverse groove. The first worm has teeth in the middle that mesh with a first driven gear. A first bevel gear is provided at both ends of the first worm. A second bevel gear rod that meshes with the first bevel gear is provided on each of the oblique grooves. The hinge rod is connected to the second bevel gear rod through a connecting block. When the second driven gear rotates, the rotating rod and the first bevel gear rotate synchronously, driving the second bevel gear rod to rotate. Then, the connecting block connects to the hinge rod, causing the top plate to move along the length of the oblique groove.

[0008] Furthermore, a second base is connected to the first base via a vertical plate. The upper surface of the vertical plate is rotatably connected to the lower surface of the second base. The detection and positioning component is disposed on the vertical plate. The detection and positioning component includes a camera, a distance sensor, and an LED light strip. The LED light strip surrounds the perimeter of the vertical plate. The camera and the distance sensor are both disposed on the upper part of the outer end face of the vertical plate. The power supply devices for the LED light strip, the camera, and the distance sensor are all installed in the cavity of the vertical plate and are detachable and replaceable.

[0009] Furthermore, the drive gear is mounted on the second base via a telescopic support and connected to a motor. The telescopic support drives the drive gear to rise and fall, enabling engagement and disengagement with the drilling component and the spreading component. The drilling component is mounted on the second base and includes a limiting plate mounted on the second base. A drill rod is mounted at the limiting plate, and a second worm is connected to the end of the drill rod, with the second worm threadedly connected to the drill rod. The second worm is fixedly mounted above the drive gear via a frame and engages with the drive gear. When the drive gear rotates, the second worm rotates, causing the drill rod to rotate along the length of the worm, thereby drilling holes in the damaged areas of the well wall.

[0010] Furthermore, the telescopic support is hydraulically driven and has a three-stage drive system.

[0011] Furthermore, the grouting component is mounted on the second base. The grouting component includes a first bevel gear rod connected to the drive gear, a second bevel gear rod meshing perpendicularly with the first bevel gear rod, a fixing sleeve fitted at the meshing point of the first and second bevel gear rods, a guide rod parallel to the second bevel gear on the second base, and a sealing pipe connecting the guide rod and the second bevel gear rod. The sealing pipe is connected to external grouting equipment. Driven by the drive gear, the second bevel gear rod rotates, causing the sealing pipe to move along the length of the second bevel gear rod and seal against the borehole.

[0012] Furthermore, the second base is provided with multiple through holes, and the first base is provided with a rod corresponding to the through hole. The upper end of the rod is provided with a first magnet, and the through hole is provided with an electromagnet. When the first base and the second base rotate synchronously, the electromagnet is energized, and the first magnet and the electromagnet are connected. The first magnet is stuck in the through hole. When only the second base needs to rotate, the electromagnet is not energized, and the first magnet moves back into the rod.

[0013] Furthermore, the insertion component includes a hook body disposed on the side wall of the second base, a lifting rope connected to the hook body, the lifting rope being connected to a lifting rope device, and the insertion and rotation being achieved through the lifting rope device.

[0014] The beneficial effects of this invention are:

[0015] 1. Currently, deep well wall repair involves drilling holes in the well using separate drilling components, followed by grouting through grouting components. This process is cumbersome and inefficient. The repair device described in this application can be used for routine inspections of the inner wall of deep wells. When damage is found, it can be repaired directly through the drilling and grouting components, avoiding some of the cumbersome steps and improving the overall repair efficiency.

[0016] 2. The drilling component, grouting component, and spreading component all use a common motor to drive multiple functions, and the functions of the drilling component, grouting component, and spreading component do not affect each other. This reduces the use of driving components, lowers production costs, and enables the use of multiple functions at the same time.

[0017] The supporting components include a lateral drive component and an oblique drive component. The lateral drive component and the oblique drive component drive the top plate to move synchronously, so that the top plate is subjected to multi-directional jacking force, which strengthens the fit between the top plate and the well wall and the jacking force. It is also suitable for deep water wells of different small diameters and has strong applicability. Attached Figure Description

[0018] Figure 1 A schematic diagram showing the repair device being inserted into a deep well;

[0019] Figure 2 This is a three-dimensional schematic diagram of the repair device;

[0020] Figure 3 A top view of the repair device;

[0021] Figure 4 Top view of the unfolded component;

[0022] Figure 5 A top view of the drilling and grouting components;

[0023] Figure 6 for Figure 5 3D schematic diagram of section A;

[0024] Figure 7 for Figure 6 A schematic diagram of the telescopic support in section B.

[0025] Reference numerals: 1. Insertion component; 2. First opening component; 21. First base; 22. Lateral drive component; 221. Bracket; 222. Bidirectional threaded rod; 223. First driven gear; 224. Moving block; 225. Sliding frame; 23. Angled drive component; 231. Angled groove; 232. Lateral groove; 233. First worm gear; 234. First bevel gear; 235. Second bevel gear rod; 236. Hinge rod; 3. Detection and positioning component; 31. Camera; 3 2. Distance sensor; 33. LED light strip; 4. Drilling component; 41. Limiting plate; 42. Drill rod; 43. Second worm gear; 5. Grouting component; 51. First bevel gear rod; 52. Second bevel gear rod; 53. Guide rod; 54. Sealing pipe opening; 6. Top plate; 7. Second base; 8. Vertical plate; 9. Drive gear; 10. Telescopic support; 11. Through hole; 12. Electromagnet; 13. Rod body; 14. First magnet; 15. Hook body; 16. Lifting rope; 17. Housing. Detailed Implementation

[0026] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0027] Reference Figures 1 to 7As shown, a deep well wall repair device according to this embodiment includes an insertion component 1 and a repair component connected to the end of the insertion component 1. The repair component includes a first supporting component 2, on which a detection and positioning component 3, a drilling component 4, and a grouting component 5 are provided. The drilling component 4 and the grouting component 5 are arranged opposite to each other. The detection and positioning component 3 is used to locate the damaged area of ​​the deep well wall. The first supporting component 2 supports the entire repair component below the damaged area and aligns the drilling component 4 with the damaged area. The drilling component drills a hole in the damaged area. After drilling is completed, the grouting component 5 is rotated 180° to align with the drilling position and perform grouting.

[0028] Based on the above embodiments, the first supporting component 2 includes a first base 21, on which a horizontal driving component 22 and an oblique driving component 23 are provided. The horizontal driving component 22 and the oblique driving component 23 synchronously drive multiple top plates 6 to support the well wall. The horizontal driving component 22 includes a bracket 221 provided on the first base 21. A bidirectional threaded rod 222 is provided on the bracket 221. A first driven gear 223 is provided in the middle of the bidirectional threaded rod 222. The first driven gear 223 is equipped with a driving gear 9. A moving block 224 is provided on the bidirectional threaded rod 222. The top plate 6 is connected to the moving block 224 through a sliding frame 225. One end of the top plate 6 is hinged to the sliding frame 225. The other end of the top plate 6 is connected to the oblique driving component 23 through a hinge rod 236. The oblique driving component 23 drives the hinge rod 236 to support the other end of the top plate 6 against the well wall.

[0029] Based on the above embodiments, the oblique drive component 23 includes multiple sets of oblique grooves 231 and transverse grooves 232 provided on the first base 21. The oblique grooves 231 and transverse grooves 232 are connected. The transverse grooves 232 are located directly below the bracket 221. A first worm gear 233 is provided in the transverse groove 232. The first worm gear 233 has teeth in the middle that mesh with the first driven gear 223. A first bevel gear 234 is provided at both ends of the first worm gear 233. A second bevel gear rod 235 that meshes with the first bevel gear 234 is provided on each of the oblique grooves 231. The hinge rod 236 is connected to the second bevel gear rod 235 through a connecting block. When the second driven gear rotates, the rotating rod and the first bevel gear 234 rotate synchronously, driving the second bevel gear rod 235 to rotate. Then, the connecting block connects the hinge rod 236 and moves the top plate 6 along the length direction of the oblique groove 231.

[0030] Based on the above embodiments, a second base 7 is connected to the first base 21 via a vertical plate 8. The upper end face of the vertical plate 8 is rotatably connected to the lower end face of the second base 7. The detection and positioning component 3 is disposed on the vertical plate 8. The detection and positioning component 3 includes a camera 31, a distance sensor 32, and an LED light strip 33. The LED light strip 33 surrounds the perimeter of the vertical plate 8. The camera 31 and the distance sensor 32 are both disposed at the upper part of the outer end face of the vertical plate 8. The power supply devices of the LED light strip 33, the camera 31, and the distance sensor 32 are all installed in the cavity of the vertical plate 8 and are detachable and replaceable.

[0031] Based on the above embodiment, the drive gear 9 is mounted on the second base 7 via a telescopic support 10 and connected to a motor. The telescopic support 10 drives the drive gear 9 to rise and fall, thereby engaging and disengaging with the drilling component 4 and the spreading component. The drilling component 4 is mounted on the second base 7 and includes a limiting plate 41 mounted on the second base 7. A drill rod 42 is mounted on the limiting plate 41. A second worm gear 43 is connected to the end of the drill rod 42 and is threadedly connected to the drill rod 42. The second worm gear 43 is fixedly mounted above the drive gear 9 via a frame and engages with the drive gear 9. When the drive gear 9 rotates, the second worm gear 43 rotates, causing the drill rod 42 to rotate along the length of the worm, thereby drilling holes at the damaged areas of the well wall.

[0032] Based on the above embodiments, the telescopic support 10 is hydraulically driven and has three-stage drive.

[0033] Based on the above embodiments, the grouting component 5 is disposed on the second base 7. The grouting component 5 includes a first bevel gear rod 51 connected to the drive gear 9. The first bevel gear rod 51 is perpendicularly meshed with a second bevel gear rod 52. A fixing sleeve is sleeved at the meshing point of the first bevel gear rod 51 and the second bevel gear rod 52. The second base 7 is provided with a guide rod 53 parallel to the second bevel gear rod 52. A sealing pipe port 54 is connected between the guide rod 53 and the second bevel gear rod. The sealing pipe port 54 is connected to an external grouting device. Driven by the drive gear 9, the second bevel gear rod 52 rotates, causing the sealing pipe port 54 to move along the length direction of the second bevel gear rod 52 and seal against the drilled hole.

[0034] Based on the above embodiment, the second base 7 is provided with a plurality of through holes 11, and the first base 21 is provided with a rod 13 corresponding to the through holes 11. The upper end of the rod 13 is provided with a first magnet 14, and the through hole 11 is provided with an electromagnet 12. When the first base 21 and the second base 7 rotate synchronously, the electromagnet 12 is energized, and the first magnet 14 is attracted to the electromagnet 12 and is stuck in the through hole 11. When only the second base 7 needs to rotate, the electromagnet 12 is not energized, and the first magnet 14 moves back into the rod 13.

[0035] Based on the above embodiments, the insertion component 1 includes a hook 15 disposed on the side wall of the second base 7, and a lifting rope 16 is connected to the hook 15. The lifting rope 16 is connected to a lifting rope 16 device, and insertion and rotation are achieved through the lifting rope 16 device.

[0036] The above improvements are specifically as follows: Figures 1-7 As shown: Deep water wells exist in both large and small diameters. Currently, when the well wall of a large-diameter deep water well is damaged, manual entry is used to drill and grout the damaged area. For small-diameter deep water wells, when it is inconvenient for personnel to enter the well, equipment is required. Currently, well wall repair requires drilling at the damaged location using drilling equipment, followed by grouting at the drilled location using grouting equipment. However, deep water wells are deep and the damaged locations are varied, making the use of multiple independent devices for repair inefficient and cumbersome. The repair device of this application has both drilling and grouting functions, improving repair efficiency. It includes an extension component 1 and a repair component connected to the end of the extension component 1. The repair component includes a first supporting component 2, which is equipped with a detection and positioning component 3, a drilling component 4, and a grouting component 5. The first supporting component 2 supports the entire repair... The support component is positioned directly below the damaged area, and the drilling component 4 is aligned with the damaged area. The first supporting component 2 includes a first base 21, on which a horizontal drive component 22 and an oblique drive component 23 are provided. The horizontal drive component 22 includes a bracket 221 on the first base 21, a bidirectional threaded rod 222 on the bracket 221, a first driven gear 223 in the middle of the bidirectional threaded rod 222, opposite threads on the bidirectional threaded rod 222, and a moving block 224 on the bidirectional threaded rod 222. The moving block 224 is connected to a top plate 6 through a sliding frame 225. One end of the top plate 6 is hinged to the sliding frame 225, and the other end of the top plate 6 is connected to the oblique drive component 23 through a hinge rod 236. The oblique drive component 23 is a component that can drive the hinge rod 236 to push the other end of the top plate 6 to contact the well wall. The top plate 6 is shaped to fit the well wall, preferably an arc shape.

[0037] like Figure 4As shown: The oblique drive component 23 specifically comprises a first base 21 with multiple sets of oblique grooves 231 and transverse grooves 232. The oblique grooves 231 and transverse grooves 232 are connected. A first worm 233 is provided in the transverse groove 232. The first worm 233 has teeth in the middle that mesh with the first driven gear 223. First bevel gears 234 are provided at both ends of the first worm 233. A second bevel gear rod 235 that meshes with the first bevel gear 234 is provided in the oblique groove 231. The second bevel gear rod 235 has threads and a connecting block is provided on the second bevel gear rod 235. The connecting block connects to the hinge rod 236. The working mode of the opening component is active. Gear 9 is driven to rotate by a motor. The first driven gear 223 and the second driven gear rotate, and the bidirectional threaded rod 222 rotates. The moving block 224 set on the bidirectional threaded rod 222 moves along the length of the threaded rod with the sliding frame 225 and one end of the top plate 6. The synchronous rotating rod rotates, the first bevel gear 234 rotates, the second bevel gear rod 235 rotates, and the moving block 224 set on the second bevel gear rod 235 moves along the inclined groove 231, so that the other end of the top plate 6 is synchronously attached to the well wall. It can adapt to deep water wells with different small diameters. Moreover, through the lateral drive and the oblique drive, the top plate 6 is subjected to multi-directional top force to enhance the fit and support force between the top plate 6 and the well wall.

[0038] like Figure 2 As shown: A second base 7 is connected to the first base 21 via a vertical plate 8. The upper end face of the vertical plate 8 is rotatably connected to the lower end face of the second base 7, but they are not separated. The detection and positioning component 3 is set on the vertical plate 8. The detection and positioning component 3 is used to detect and locate the damaged area of ​​the deep well wall. The detection and positioning component 3 includes a camera 31, a distance sensor 32, and an LED light strip 33. The LED light strip 33 is arranged around the perimeter of the vertical plate 8 to increase the brightness inside the well and facilitate the camera 31 to take pictures. The distance sensor 32 and the camera 31 are set at the upper part of the vertical plate 8. First, the distance sensor 32 detects the specific location of the damaged area of ​​the well wall. Then, the camera 31 takes pictures of the specific location so that the staff can observe the damage to the well wall and thus determine the number and depth of drilling, ensuring more efficient completion of the repair work. When the drilling position is determined, the drilling component 4 is started.

[0039] like Figure 6 , Figure 7As shown: The drive gear 9 is mounted on the second base 7 via the telescopic support 10 and is connected to a motor. The telescopic support 10 drives the drive gear 9 to rise and fall, thereby engaging and disengaging with the drilling component 4 and the spreading component. The telescopic support 10 has three driving stages. The first stage is non-driving, in which case the drive gear 9 can only act on the grouting component 5. The second stage is downward, in which case the drive gear 9 acts on the spreading component. The third stage is upward, in which case the drive gear 9 acts on the drilling component 4. By driving the drive gear 9 to rise and fall in three stages through the telescopic support 10, multiple components can be driven, reducing the number of drive components, reducing costs, and not affecting the use of the components. The telescopic support 10 is a component with a lifting function, including a hydraulic rod.

[0040] like Figure 5 , Figure 6 As shown: The drilling component 4 includes a limiting plate 41 set on the second base 7. A drill rod 42 is set at the limiting plate 41. The end of the drill rod 42 is connected to a second worm gear 43 and the worm gear is threaded. The second worm gear 43 is fixedly mounted above the drive gear 9 by the frame and meshes with the drive gear 9. When the drive gear 9 rotates, the second worm gear 43 rotates. The rotation of the second worm gear 43 drives the drill rod 42 to rotate. The limiting plate 41 is used to limit the position of the drill rod 42 and prevent the drill rod 42 from deviating. The limiting plate 41 and the vertical plate 8 are on the same vertical line to ensure the accuracy of the drilling position.

[0041] like Figure 3 As shown: The second base 7 is provided with multiple through holes 11. The first base 21 is provided with a rod 13 corresponding to the through holes 11. The upper end of the rod 13 is provided with a first magnet 14. The through holes 11 are provided with an electromagnet 12. When the detection positioning component 3 is being detected or during the drilling stage, the electromagnet is energized and attracts the first magnet 14. The first magnet 14 is stuck in the through hole 11. When detecting whether there is damage to the well wall, it can rotate synchronously to ensure that the drilling component 4 and the detection positioning component 3 are in the same vertical direction, reducing the need to reposition the damaged position during drilling. When drilling is completed, and it is necessary to rotate the second base 7 180° to align the grouting component 5 with the drilling position, the electromagnet is not energized. The electromagnet is non-magnetic and does not attract the first magnet 14. The first magnet 14 is located on the rod 13, which avoids the rotation of the second base 7 causing the rotation of the first base 21.

[0042] like Figure 5 , Figure 6As shown: Grouting component 5 includes a first bevel gear rod 51 connected to the drive gear 9. A locking element is provided on the first bevel gear rod 51 facing the drive gear 9. The drive gear 9 has a slot for the locking element. When the telescopic support 10 returns from level three to level one, the locking element engages with the slot. A second bevel gear rod 52 is perpendicularly meshed with the first bevel gear rod 51. A fixing sleeve is provided at the meshing point of the first bevel gear rod 51 and the second bevel gear rod 52. The fixing sleeve limits the meshing of the first and second bevel gears, improving meshing accuracy. A guide rod 53 is provided parallel to the second bevel gear rod 52 on the second base 7. The guide rod 53 is positioned between the guide rod 53 and the second bevel gear rod. A sealing port 54 is connected, and the sealing port 54 is driven by the second bevel gear rod to press the sealing port 54 into the drilling position. The upper end of the sealing port 54 is connected to the external grouting equipment to inject mud into the pore and let the mud seep into the damaged area to complete the well wall repair, prevent the collapse of the deep well water, and extend the service life of the deep water well. The second base 7 can also be equipped with an outer shell, which covers part of the drilling component 4 and the grouting component 5. A telescopic elastic component with top support force can be provided between the outer end face of the outer shell and the sealing port 54. The telescopic elastic component includes a telescopic spring rod to further improve the sealing performance between the sealing port 54 and the well wall.

[0043] like Figure 1 As shown: The insertion component 1 includes a hook 15 disposed on the side wall of the second base 7. A lifting rope 16 is connected to the hook 15. The lifting rope 16 is connected to a lifting rope 16 device. The lifting rope 16 device is equipped with a rotating component. The lifting rope 16 device can both insert and drive the first base 21 and the second base 7 to rotate synchronously or independently.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A deep well wall repair device, characterized in that: The device includes an insertion component (1) and a repair component connected to the end of the insertion component (1). The repair component includes a first supporting component (2). The first supporting component (2) is provided with a detection and positioning component (3), a drilling component (4), and a grouting component (5). The drilling component (4) and the grouting component (5) are arranged opposite to each other. The detection and positioning component (3) is used to locate the damaged area on the inner wall of the deep well. The first supporting component (2) supports the entire repair component below the damaged area and aligns the drilling component (4) with the damaged area. The drilling component drills a hole in the damaged area. After drilling is completed, the grouting component (5) is rotated 180° to align with the drilling position and grout is injected. The first spreading component (2) includes a first base (21), on which a transverse driving component (22) and an oblique driving component (23) are provided. The transverse driving component (22) and the oblique driving component (23) synchronously drive multiple top plates (6) to support the well wall. The transverse driving component (22) includes a bracket (221) provided on the first base (21), on which a bidirectional threaded rod (222) is provided. A first driven gear is provided in the middle of the bidirectional threaded rod (222). 223), the first driven gear (223) is equipped with a driving gear (9), the bidirectional threaded rod (222) is provided with a moving block (224), the top plate (6) is connected to the moving block (224) through a sliding frame (225), one end of the top plate (6) is hinged to the sliding frame (225), and the other end of the top plate (6) is connected to the inclined drive member (23) through a hinge rod (236). The inclined drive member (23) drives the hinge rod (236) to push the other end of the top plate (6) against the well wall; The oblique drive component (23) includes multiple sets of oblique grooves (231) and transverse grooves (232) provided on the first base (21). The oblique grooves (231) and transverse grooves (232) are connected. The transverse grooves (232) are located directly below the bracket (221). A first worm gear (233) is provided in the transverse groove (232). The first worm gear (233) has teeth in the middle that mesh with the first driven gear (223). Both ends of the first worm gear (233) are provided with... There is a first bevel gear (234), and a second bevel gear rod (235) that meshes with the first bevel gear (234) is provided on each of the inclined grooves (231). The hinge rod (236) is connected to the second bevel gear rod (235) through a connecting block. When the first driven gear rotates, the first worm and the first bevel gear (234) rotate synchronously, driving the second bevel gear rod (235) to rotate. Then the connecting block connects the hinge rod (236) and moves the top plate (6) along the length direction of the inclined groove (231). A second base (7) is connected to the first base (21) via a vertical plate (8). The upper end face of the vertical plate (8) is rotatably connected to the lower end face of the second base (7). The detection and positioning component (3) is set on the vertical plate (8). The detection and positioning component (3) includes a camera (31), a distance sensor (32), and an LED light strip (33). The LED light strip (33) surrounds the perimeter of the vertical plate (8). The camera (31) and the distance sensor (32) are both set at the upper part of the outer end face of the vertical plate (8). The power supply devices of the LED light strip (33), the camera (31), and the distance sensor (32) are all installed in the cavity of the vertical plate (8) and can be disassembled and replaced. The grouting component (5) is mounted on the second base (7). The grouting component (5) includes a first bevel gear rod (51) connected to the drive gear (9). The first bevel gear rod (51) is vertically meshed with a second bevel gear rod (52). A fixing sleeve is fitted at the meshing point of the first bevel gear rod (51) and the second bevel gear rod (52). The second base (7) is provided with a guide rod (53) parallel to the second bevel gear rod (52). A sealing pipe (54) is connected between the guide rod (53) and the second bevel gear rod. The sealing pipe (54) is connected to an external grouting device. Driven by the drive gear (9), the second bevel gear rod (52) rotates, causing the sealing pipe (54) to move along the length of the second bevel gear rod (52) and seal against the borehole. The second base (7) is provided with multiple through holes (11). The first base (21) is provided with a rod (13) corresponding to the through holes (11). The upper end of the rod (13) is provided with a first magnet (14). The through hole (11) is provided with an electromagnet (12). When the first base (21) and the second base (7) rotate synchronously, the electromagnet (12) is energized, and the first magnet (14) is attracted to the electromagnet (12). The first magnet (14) is stuck in the through hole (11). When only the second base (7) needs to rotate, the electromagnet (12) is not energized, and the first magnet (14) moves back into the rod (13).

2. The deep well wall repair device according to claim 1, characterized in that: The drive gear (9) is mounted on the second base (7) via a telescopic support (10) and connected to a motor. The telescopic support (10) drives the drive gear (9) to rise and fall to engage and disengage with the drilling component (4) and the spreading component. The drilling component (4) is mounted on the second base (7) and includes a limiting plate (41) mounted on the second base (7). A drill rod (42) is mounted on the limiting plate (41). A second worm (43) is connected to the end of the drill rod (42) and the second worm (43) is threadedly connected to the drill rod (42). The second worm (43) is fixedly mounted above the drive gear (9) via a frame and engages with the drive gear (9). When the drive gear (9) rotates, the second worm (43) rotates, causing the drill rod (42) to rotate along the length of the second worm, thereby drilling holes in the damaged area of ​​the well wall.

3. The deep well wall repair device according to claim 2, characterized in that: The telescopic support (10) is driven by a hydraulic rod and has three driving stages.

4. The deep well wall repair device according to claim 3, characterized in that: The insertion component (1) includes a hook (15) disposed on the side wall of the second base (7), and a lifting rope (16) is connected to the hook (15). The lifting rope (16) is connected to a lifting rope device, and insertion and rotation are achieved through the lifting rope device.

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