Downhole power setting punching repair equipment

Abstract

The invention provides underground power setting punching repairing equipment, and belongs to the technical field of underground casing punching repairing equipment.The underground power setting punching repairing equipment comprises a shell, a radial movement mechanism, a glue injection mechanism and a filtering mechanism are arranged in the shell, a telescopic sealing sleeve is arranged at the movement end of the radial movement mechanism, and a drilling assembly and a spraying mechanism are arranged in the telescopic sealing sleeve; the telescopic sealing sleeve is driven by the radial movement mechanism to be attached to the inner wall of the drilling position of a casing pipe to form a closed cavity, during drilling, the spraying mechanism sprays flushing fluid to the drilling position to flush waste chips generated during drilling and form waste liquid containing the waste chips, the telescopic sealing sleeve collects the waste liquid containing the waste chips, and the waste liquid containing the waste chips is recycled. The filtering mechanism is used for carrying out solid-liquid separation on the waste liquid containing the sweeps, filtering and collecting the sweeps, and the filtered clean flushing liquid is conveyed back to the spraying mechanism, so that water circulation is achieved, sweeps are completely eradicated from the source, and the risks of drill jamming, sleeve abrasion, oil and gas channel blockage and the like caused by the sweeps are effectively avoided.

Description

Technical Field

[0001] This application belongs to the technical field of downhole casing drilling and repair equipment, and particularly relates to a downhole power setting and drilling repair equipment. Background Technology

[0002] In the operation and maintenance of downhole casing in the oil and gas industry, the casing, as a key component of the wellbore, is subjected to formation pressure, fluid corrosion, and mechanical wear over a long period of time, making it highly susceptible to damage such as corrosion perforation and cracks. Currently, the industry commonly uses a "drill-injection" repair process to treat such damage. This involves first precisely drilling a hole in the damaged area of ​​the casing, then injecting high-strength repair materials such as epoxy resin or metal composite materials into the hole. Through material curing, the damaged area of ​​the casing is sealed and its strength is reinforced, ensuring the normal service of the wellbore. However, waste disposal remains a significant technical challenge in existing "drilling-injection" repair operations. Current repair equipment lacks a dedicated structure for the closed collection and separation of waste, with most metal waste generated during drilling relying on the workover fluid circulation to be carried to the surface for treatment. However, the confined downhole space and uneven workover fluid flow rate cause flaky and blocky waste to accumulate at the bottom of the casing, tubing shoe, or perforation holes. This not only narrows the oil and gas flow path and affects subsequent production efficiency but can also lead to stuck pipe accidents during subsequent tubing string running and logging operations, and even wear down the casing inner wall or downhole safety valves, seriously threatening wellbore integrity and operational safety. Meanwhile, existing repair equipment lacks continuity and integration in its operations, with drilling components, adhesive injection components, and waste disposal structures mostly scattered. During operation, drilling must be completed using the equipment first, then tools must be changed to clean up the waste, and finally, adhesive injection equipment must be used to inject the repair material. This process requires multiple adjustments to the equipment position, which not only prolongs the well workover cycle and increases operating costs, but also may cause borehole position displacement due to repeated operations, affecting the adhesive density and reducing the effectiveness of casing repair. Summary of the Invention

[0003] This application provides a downhole power-driven drilling repair device. During drilling, a spray mechanism injects flushing fluid into the drilling location to wash away drilling debris and form a waste liquid containing debris. A retractable sealing sleeve collects the waste liquid containing debris. A filtration mechanism separates the debris downhole and returns the clean flushing fluid, preventing debris residue. Furthermore, the device integrates all functional components, eliminating the need for tool changes and repositioning, thus achieving integrated operation. This solves the problems of existing equipment lacking a closed-loop debris collection and separation structure, leading to debris residue and safety risks, and the dispersed components requiring multiple tool changes and repositioning, which delays the project, increases costs, and affects repair effectiveness.

[0004] This application provides a downhole dynamic setting and drilling repair device, including a housing; The housing is provided with a radial motion mechanism, a glue injection mechanism and a filter mechanism. The moving end of the radial motion mechanism is provided with a telescopic sealing sleeve. The telescopic sealing sleeve is provided with a drilling assembly and a spraying mechanism arranged around the drilling assembly. The inlet end of the filtration mechanism is connected to the outlet end of the retractable sealing sleeve through a first pipeline, and the outlet end of the filtration mechanism is connected to the inlet end of the spraying mechanism through a second pipeline. The drilling assembly is configured to drill holes in the area of ​​the casing to be repaired; the spraying mechanism is configured to spray flushing fluid onto the drilling location during the drilling process to flush away the waste debris generated during drilling and form waste liquid containing waste debris; the retractable sealing sleeve is configured to fit against the inner wall of the casing at the drilling location to form a closed chamber for collecting the waste liquid containing waste debris; the filtration mechanism is configured to perform solid-liquid separation on the waste liquid containing waste debris, filter and collect the waste debris, and return the filtered cleaning flushing fluid to the spraying mechanism; the adhesive injection mechanism is configured to inject repair material into the drill hole to repair the casing.

[0005] In one feasible implementation, the housing is further provided with a rotating platform, both sides of which are parallel to the radial direction of the sleeve. The radial motion mechanism and the glue injection mechanism are located at both ends of one side of the rotary table, and the filtering mechanism is located on the other side of the rotary table. The glue injection direction of the glue injection mechanism is on the same plane as the drilling direction of the drilling assembly, and this plane is parallel to the side of the rotary table. The rotary table is configured to rotate about the axis of the housing, driving the radial motion mechanism, the glue injection mechanism, and the filter mechanism to rotate synchronously, so as to adjust the drilling assembly and the glue injection mechanism to the position of the sleeve to be repaired.

[0006] In one feasible implementation, the retractable sealing sleeve includes an outer cylinder, an inner ring, a rubber ring, a slider, and a spring. The outer cylinder is disposed at the moving end of the radial motion mechanism, the open end of the outer cylinder faces the radial direction of the sleeve, the outer wall of the inner ring is inserted into the inner wall of the outer cylinder, and the outer end of the inner ring extends out of the outer cylinder and connects with the rubber ring. The slider is fixed to the outer wall of the inner ring body. The inner wall of the outer cylinder body is provided with a groove that matches the slider. The slider is inserted into the groove. One end of the spring is connected to the inner wall of the groove, and the other end is connected to the outer wall of the slider.

[0007] In one feasible implementation, the drilling assembly includes a first motor, a coupling, and a drill bit; The first motor is fixed to the inner wall of the outer cylinder, and the output end of the first motor is connected to the drill bit through the coupling. The first motor, the coupling, the drill bit, and the outer cylinder are coaxial.

[0008] In one feasible implementation, the spraying mechanism includes an inlet pipe, a telescopic hose, an annular pipe, and a nozzle; The inlet pipe is fixed to the outer wall of the outer cylinder, the annular pipe is fixed to the inner wall of the inner annular body, and the telescopic hose connects the inlet pipe and the annular pipe. The annular tube is coaxial with the inner annular body. The nozzle is fixed on the annular tube, and multiple nozzles are evenly distributed around the axis of the annular tube. One end of the nozzle is connected to the annular tube, and the other end faces the casing and is inclined downward toward the drill bit side, that is, multiple nozzles are distributed in a conical shape.

[0009] In one feasible implementation, the filtration mechanism includes a barrel, a conical filter screen, a secondary filter screen, a strong magnetic filtration assembly, a sedimentation filtration assembly, and a pump body; The barrel is fixed on the rotating platform. The liquid inlet at the top of the barrel is connected to the liquid outlet at the bottom of the inner ring through a first pipeline. The conical filter, the secondary filter, the strong magnetic filter assembly, and the sedimentation filter assembly are arranged sequentially from top to bottom in the barrel. The pump body is located at the bottom of the barrel and is connected to the sedimentation filter assembly. The strong magnetic filter assembly includes a disc, a magnetic ring, a spiral plate, a column, and an interception mesh; The disk body has through holes, and multiple through holes are evenly distributed on the disk body. The magnetic ring is disposed in the through holes. The outer end of the spiral blade is fixedly connected to the inner wall of the magnetic ring, and the outer wall of the column is fixedly connected to the inner end of the spiral blade, so that a spiral channel is formed inside the magnetic ring. The intercepting net is disposed on the spiral blade, and the two ends of the intercepting net are respectively connected to the column and the magnetic ring. Multiple intercepting nets are evenly disposed in the spiral channel. The sedimentation and filtration assembly includes a drain pipe, a connecting rod, and a conical cover. The drain pipe is vertically installed inside the barrel, and its bottom end passes through the barrel and is connected to the inlet end of the pump body. The drain end of the pump body is connected to the inlet pipe through the second pipeline. The top end of the drain pipe is connected to the conical cover through the connecting rod. The open end of the conical cover is vertically downward, and its bottom end is parallel to the middle of the drain pipe.

[0010] In one feasible implementation, the glue injection mechanism includes a first telescopic rod and a glue injection tube; The first telescopic rod is mounted on the rotating platform. The telescopic direction of the first telescopic rod is perpendicular to the axis of the sleeve. One end of the glue injection tube is connected to the telescopic end of the first telescopic rod, and the other end extends into the inner wall of the sleeve. The injection tube is coaxial with the drill bit of the drilling assembly.

[0011] In one feasible implementation, the top of the housing is provided with a connector, and the housing is provided with a tube that communicates with the connector, the tube being coaxial with the housing; The rotary table is connected to the tube body, and the rotary table includes an annular plate, an external gear ring, a second motor, and gears; The annular plate is sleeved onto the tube body, and the external toothed ring is fixed to the lower surface of the annular plate and sleeved onto the tube body; The second motor is fixed on the tube body, and the gear is located at the output end of the second motor, and the gear meshes with the external gear ring.

[0012] In one feasible implementation, the radial motion mechanism includes a second telescopic rod, a slide rail, and a slider; The second telescopic rod and the slide rail are respectively disposed on both sides of the upper surface of the annular plate, the slider is slidably connected to the slide rail, and the telescopic end of the second telescopic rod is connected to the slider; The retractable sealing sleeve is mounted on the slider.

[0013] In one feasible implementation, the downhole power setting and drilling repair equipment further includes a slip mechanism. The slip mechanism is provided on both the upper and lower sides of the pipe body. Multiple slip mechanisms are evenly distributed around the central axis of the pipe body. The side wall of the shell is provided with a through-hole corresponding to the slip mechanism. The slip mechanism includes a cylinder, piston, rod, slip, elastic element, and valve body. The cylinder body is fixed to the outer wall of the pipe body, and the liquid inlet of the cylinder body is connected to the pipe body; the valve body is fixed to the liquid inlet of the cylinder body. The piston is disposed in the cylinder body, one end of the rod is connected to the piston, and the other end passes through the outer end of the cylinder body and the through port, and is connected to the slip; The elastic element is sleeved on the rod body, one end of the elastic element abuts against the outer wall of the piston, and the other end abuts against the inner wall of the outer end of the cylinder body; The valve body is configured to control the liquid inlet flow of the slip mechanism, thereby controlling the extension length of the slip mechanism and adjusting the position of the drilling and repair equipment inside the sleeve.

[0014] This application provides a downhole power setting and drilling repair device. A radial motion mechanism drives a retractable sealing sleeve to move radially along the sleeve, causing the retractable sealing sleeve to fit against the inner wall of the casing borehole location, forming a closed chamber. The radial motion mechanism continues to move, causing the drilling assembly to drill into the area of ​​the casing to be repaired. Simultaneously, a spraying mechanism sprays flushing fluid onto the borehole location, flushing away the drilling debris and forming waste liquid containing the debris. The retractable sealing sleeve collects the waste liquid containing the debris. A filtration mechanism performs solid-liquid separation on the waste liquid containing the debris, filtering and collecting the debris, and returning the filtered clean flushing fluid to the spraying mechanism to achieve water circulation. This application eliminates debris residue at the source, effectively avoiding risks such as stuck drill, casing wear, and oil / gas channel blockage caused by debris. At the same time, by integrating various functional components, there is no need to change tools or adjust positions, which enables integrated operation. This solves the problems of existing equipment lacking a closed collection and separation structure for waste, which makes waste residue easy to remain and cause safety risks. In addition, the components are scattered, requiring multiple tool changes and adjustments, which delays the construction period, increases costs, and affects the repair effect. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the downhole power setting and drilling repair equipment provided in this application; Figure 2 This is a front sectional view of the downhole power setting and drilling repair equipment; Figure 3 This is a structural schematic diagram of the downhole power setting and drilling repair equipment in operation. Figure 4 This is a schematic diagram of the spraying mechanism and its connecting structure; Figure 5 This is a schematic diagram of the rotary table and its connecting structure; Figure 6 This is a schematic diagram of the retractable sealing sleeve and its connection structure. Figure 7 This is a schematic diagram of the filtration mechanism; Figure 8 This is a schematic diagram of the structure of a strong magnetic filter component; Figure 9 This is a schematic diagram of the magnetic ring and its connection structure; Figure 10 This is a schematic diagram of the KAVO mechanism.

[0016] Explanation of reference numerals in the attached figures: 100-Housing; 200-Radial motion mechanism; 300-Glue injection mechanism; 400-Filtering mechanism; 500-Retractable sealing sleeve; 600-Drilling assembly; 700-Spraying mechanism; 800-Rotating table; 900-Clamping mechanism; 110-Connector; 120-Pipe body; 210-Second telescopic rod; 220-Slide rail; 230-Slider; 310-First telescopic rod; 320-Injection tube; 410-Barrel body; 420-Conical filter screen; 430-Secondary filter screen; 440-Strong magnetic filter assembly; 450-Sedimentation filter assembly; 460-Pump body; 510-Outer cylinder; 520-Inner ring; 530-Rubber ring; 540- Slider; 550-Spring; 610-First motor; 620-Coupling; 630-Drill bit; 710-Inlet pipe; 720-Telescopic hose; 730-Annular pipe; 740-Nozzle; 810-Annular plate; 820-External gear ring; 830-Second motor; 840-Gear; 910-Cylinder; 920-Piston; 930-Rod; 940-Slipper; 950-Elastic element; 960-Valve body; 441-Disc body; 442-Magnetic ring; 443-Spiral blade; 444-Column; 445-Interception net; 451-Drainage pipe; 452-Connecting rod; 453-Conical cover. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0018] Currently, in downhole casing "drilling-injection" repair operations, residual debris can easily cause safety risks, and the dispersed equipment components lead to low operation efficiency and high costs. The downhole power setting and drilling repair equipment provided in this application uses a spray mechanism 700 to spray flushing fluid onto the drilling location during the drilling process, flushing away the debris generated during drilling and forming waste liquid containing debris. The waste liquid containing debris is collected and sealed by a telescopic sealing sleeve 500, and the debris is separated downhole by a filtration mechanism 400 and returned to the clean flushing fluid, eliminating debris residue. At the same time, all functional components are integrated, eliminating the need to change tools or adjust positions, and realizing integrated operation.

[0019] The following detailed description, in conjunction with the accompanying drawings, illustrates the specific structure of the downhole power setting and drilling repair equipment provided in this application.

[0020] Reference Figures 1-10 As shown, Figure 2 , Figure 3 , Figure 5 and Figure 10In the example of this application, A represents the casing. The embodiment of this application provides a downhole power setting and drilling repair device, which includes a housing 100. The housing 100 is made of corrosion-resistant material, which can withstand complex downhole working conditions, avoid formation fluid erosion, and provide a stable installation and protection foundation for the internal mechanism. The housing 100 is equipped with a radial motion mechanism 200, an adhesive injection mechanism 300, and a filtration mechanism 400. The radial motion mechanism 200 can achieve precise radial drive, the adhesive injection mechanism 300 is used to deliver repair materials, and the filtration mechanism 400 can complete solid-liquid separation. The moving end of the radial motion mechanism 200 is equipped with a telescopic sealing sleeve 500, which can fit against the outer wall of the casing to form a closed space. The telescopic sealing sleeve 500 is equipped with a drilling assembly 600 and a spraying mechanism 700 arranged around the drilling assembly 600. The drilling assembly 600 is responsible for the casing drilling operation, and the spraying mechanism 700 can spray rinsing fluid in a directional manner. The inlet end of the filter mechanism 400 is connected to the outlet end of the retractable sealing sleeve 500 through a first pipeline, which facilitates the entry of waste debris and waste liquid into the filter mechanism 400; the outlet end of the filter mechanism 400 is connected to the inlet end of the spray mechanism 700 through a second pipeline, which enables the recycling of the rinsing liquid; both the first pipeline and the second pipeline adopt a sealed design to prevent liquid leakage. The drilling assembly 600 is configured to drill holes in the area of ​​the casing to be repaired, ensuring that the drilling position accurately corresponds to the damaged area; the spraying mechanism 700 is configured to spray flushing fluid onto the drilling position during the drilling process to flush away the waste debris generated during drilling and form waste liquid containing waste debris, while simultaneously cooling the drilling assembly 600; the telescopic sealing sleeve 500 is configured to fit against the inner wall of the casing drilling position to form a closed chamber to collect the waste liquid containing waste debris, preventing the waste liquid from contaminating the wellbore; the filtration mechanism 400 is configured to perform solid-liquid separation on the waste liquid containing waste debris, filter and collect the waste debris, and return the filtered clean flushing fluid to the spraying mechanism 700; the adhesive injection mechanism 300 is configured to inject repair material into the borehole to repair the damaged area of ​​the casing and restore the casing sealing performance.

[0021] The downhole dynamic setting and drilling repair equipment provided in this application has the following advantages compared with the prior art: 1. Completely resolve the problem of residual waste materials and ensure wellbore safety: The retractable sealing sleeve 500 can fit against the outer wall of the casing to form a closed chamber, completely collecting the waste fluid containing debris generated by the spraying mechanism 700 during borehole flushing, preventing the waste fluid from overflowing into the annular space of the wellbore; in conjunction with the filtration mechanism 400, the waste fluid is separated into solid and liquid components, and the filtered debris is collected in a concentrated manner. The cleaning flushing fluid is returned to the spraying mechanism 700 for recycling through a second pipeline, eliminating the accumulation of debris at the bottom of the casing and the tubing shoe from the source, avoiding the risks of stuck drill bit, wear of the inner wall of the casing and failure of the downhole safety valve, ensuring the integrity of the wellbore, and solving the defect of existing equipment relying on workover fluid to carry debris. 2. Improve work continuity, reduce costs, and ensure repair accuracy: To address the issue of "dispersed equipment and the need for multiple tool changes and repositioning" in the background technology, the housing 100 integrates the radial motion mechanism 200, the adhesive injection mechanism 300, and the filtration mechanism 400 into one unit, eliminating the need for disassembly and tool replacement. After the radial motion mechanism 200 drives the telescopic sealing sleeve 500 and the internal drilling assembly 600 to complete precise drilling, the adhesive injection mechanism 300 can directly inject repair material into the borehole without adjusting the equipment position. Simultaneously, the drilling assembly 600, the spraying mechanism 700, and the filtration mechanism 400 work in sync, avoiding borehole position deviation caused by multiple operations, ensuring adhesive density, improving casing repair effect, significantly shortening well workover cycle, reducing operating costs, and solving the pain point of insufficient integration in existing equipment. 3. Adapts to complex downhole working conditions, improving equipment reliability: The housing 100 is made of corrosion-resistant material, which can withstand downhole formation pressure and fluid corrosion, providing stable protection for internal mechanisms and preventing formation fluids from eroding equipment components. The sealing design of the telescopic sealing sleeve 500 and the closed-loop treatment of the filter mechanism 400 reduce the interference of downhole fluids on operations, ensuring stable operation even in narrow downhole spaces. Compared with existing distributed equipment, the overall structure is more suitable for complex downhole working conditions, improving the reliability and service life of the equipment.

[0022] Reference Figures 2-4 As shown, in one embodiment, a rotating platform 800 is also provided inside the housing 100. Both sides of the rotating platform 800 are parallel to the radial direction of the sleeve. The rotating platform 800 can rotate stably around the axis of the housing 100, providing a rotation adjustment carrier for each mechanism. The radial motion mechanism 200 and the glue injection mechanism 300 are located at both ends of one side of the rotary table 800, with a symmetrical and reasonable layout to avoid the center of gravity shifting during rotation; the filter mechanism 400 is located on the other side of the rotary table 800, and does not interfere with the radial motion mechanism 200 and the glue injection mechanism 300; and the glue injection direction of the glue injection mechanism 300 is on the same plane as the drilling direction of the drilling assembly 600, and this plane is parallel to the side of the rotary table 800, ensuring that the glue injection and drilling positions correspond precisely. The rotary table 800 is configured to rotate around the axis of the housing 100, driving the radial motion mechanism 200, the glue injection mechanism 300 and the filter mechanism 400 to rotate synchronously, so as to adjust the drilling assembly 600 and the glue injection mechanism 300 to the position of the casing to be repaired, without having to raise and lower the equipment multiple times to adjust the orientation. The addition of a rotary table (800°) allows all mechanisms to rotate synchronously and adjust their positions, making it suitable for repairing pipe damage in any direction and overcoming the limitation of traditional equipment that can only repair damage in one direction. Furthermore, the coplanar design of the glue injection and drilling directions eliminates the need for subsequent hole alignment steps, significantly improving work efficiency and repair accuracy, and further reducing work costs.

[0023] Reference Figures 4-6 As shown, in one embodiment, the telescopic sealing sleeve 500 includes an outer cylinder 510, an inner ring 520, a rubber ring 530, a slider 540, and a spring 550, with each component working together to achieve the telescopic and sealing functions. The outer cylinder 510 is located at the moving end of the radial motion mechanism 200 and moves synchronously with the radial motion mechanism 200. The open end of the outer cylinder 510 faces the radial direction of the sleeve, providing space for the inner ring 520 to extend and retract. The outer wall of the inner ring 520 is inserted into the inner wall of the outer cylinder 510 and can move flexibly along the axis of the outer cylinder 510. The outer end of the inner ring 520 extends out of the outer cylinder 510 and connects with the rubber ring 530. The rubber ring 530 has good elasticity to ensure a tight seal. The slider 540 is fixed to the outer wall of the inner ring 520. The inner wall of the outer cylinder 510 is provided with a groove that matches the slider 540. The slider 540 is inserted into the groove to guide the extension and retraction of the inner ring 520 and prevent it from shifting. One end of the spring 550 is connected to the inner wall of the groove and the other end is connected to the outer wall of the slider 540. The spring 550 can provide elastic force to ensure that the rubber ring 530 fits tightly against the sleeve. The telescopic sealing sleeve 500 achieves adaptive telescopic extension through the nested structure of the outer cylinder 510 and the inner ring 520 and the elastic action of the spring 550. The rubber ring 530 can tightly fit sleeves with different inner diameters, improving sealing reliability. The guide design of the slider 540 and the groove avoids the inner ring 520 from shifting, ensuring stable collection of waste liquid in the closed chamber and further reducing the risk of waste spillage.

[0024] Reference Figures 4-6 As shown, in one embodiment, the drilling assembly 600 includes a first motor 610, a coupling 620, and a drill bit 630, which work together to achieve stable drilling. The first motor 610 is fixed to the inner wall of the outer cylinder 510 to provide power for drilling. The installation position is stable to avoid violent shaking during drilling. The output end of the first motor 610 is connected to the drill bit 630 through the coupling 620. The coupling 620 can buffer drilling vibration and protect the first motor 610 and the drill bit 630. The first motor 610, coupling 620, drill bit 630 and outer cylinder 510 are coaxial, ensuring uniform force during drilling and preventing the drill bit 630 from shifting, which would reduce drilling accuracy. The drilling assembly 600, through its coaxial design and the buffering effect of the coupling 620, improves the stability and accuracy of drilling and avoids the impact of drilling deviation on subsequent glue injection repair. The first motor 610 is fixed to the inner wall of the outer cylinder 510, with a compact structure, and works in conjunction with the telescopic sealing sleeve 500 to further ensure the safety and reliability of drilling operations.

[0025] Reference Figures 4-6 As shown, in one embodiment, the spraying mechanism 700 includes an inlet pipe 710, a telescopic hose 720, an annular pipe 730, and a nozzle 740, with each component working together to achieve precise spraying. The inlet pipe 710 is fixed to the outer wall of the outer cylinder 510 and is used to receive the filtered cleaning and rinsing liquid; the annular pipe 730 is fixed to the inner wall of the inner ring 520 and is adapted to the position of the drilling assembly 600; the telescopic hose 720 connects the inlet pipe 710 and the annular pipe 730 and can be flexibly deformed with the inner ring 520 to ensure continuous liquid delivery. The annular tube 730 is coaxial with the inner annular body 520. The nozzle 740 is fixed on the annular tube 730, and multiple nozzles 740 are evenly distributed around the axis of the annular tube 730. One end of the nozzle 740 is connected to the annular tube 730, and the other end faces the casing and is inclined towards the drill bit 630. That is, multiple nozzles 740 are distributed in a conical shape, which can cover the drilling area in all directions. The spraying mechanism 700 achieves full coverage rinsing of the drilling area through the conical nozzles 740, ensuring that waste chips are fully removed; the telescopic hose 720 adapts to the inner ring 520 to extend and retract, avoiding pipeline breakage that would affect the operation, and works with the filter mechanism 400 to achieve flushing fluid circulation, reducing resource waste, while cooling the drill bit 630 and extending its service life.

[0026] Reference Figures 7-9 As shown, in one embodiment, the filtration mechanism 400 includes a barrel 410, a conical filter 420, a secondary filter 430, a strong magnetic filter assembly 440, a sedimentation filter assembly 450, and a pump 460. The multi-stage filtration structure ensures thorough solid-liquid separation. The barrel 410 is fixed on the rotating platform 800, providing installation space for the filter components. The liquid inlet at the top of the barrel 410 is connected to the liquid outlet at the bottom of the inner ring 520 through the first pipeline, allowing waste liquid containing debris to enter the barrel 410 smoothly. The conical filter 420, the secondary filter 430, the strong magnetic filter assembly 440, and the sedimentation filter assembly 450 are arranged sequentially from top to bottom inside the barrel 410, gradually intercepting different types of debris. The pump body 460 is located at the bottom of the barrel 410 and connected to the sedimentation filter assembly 450, providing power for the circulation of the rinsing liquid. The strong magnetic filter assembly 440 includes a disc 441, a magnetic ring 442, a spiral blade 443, a column 444, and an intercepting net 445, which can adsorb metal waste. The disc 441 has through holes, and multiple through holes are evenly distributed on the disc 441. The magnetic ring 442 is disposed in the through holes. The outer end of the spiral blade 443 is fixedly connected to the inner wall of the magnetic ring 442. The outer wall of the column 444 is fixedly connected to the inner end of the spiral blade 443, so that a spiral channel is formed in the magnetic ring 442, which prolongs the flow time of waste liquid. The intercepting net 445 is disposed on the spiral blade 443. The two ends of the intercepting net 445 are respectively connected to the column 444 and the magnetic ring 442. Multiple intercepting nets 445 are evenly disposed in the spiral channel to further intercept waste. The sedimentation filter assembly 450 includes a drain pipe 451, a connecting rod 452, and a conical cover 453 to ensure smooth output of cleaning rinsing fluid. The drain pipe 451 is vertically installed inside the tank 410, and its bottom end passes through the tank 410 and is connected to the inlet end of the pump body 460. The outlet end of the pump body 460 is connected to the inlet pipe 710 through a second pipe. The top end of the drain pipe 451 is connected to the conical cover 453 through the connecting rod 452. The open end of the conical cover 453 is vertically downward, and its bottom end is parallel to the middle of the drain pipe 451 to prevent unsedimented impurities from entering the drain pipe 451. The filtration mechanism 400 can thoroughly separate waste debris of different particle sizes and types through multi-stage filtration components. The strong magnetic filtration component 440 and the sedimentation filtration component 450 further improve the filtration accuracy and ensure that the flushing fluid returned to the spray mechanism 700 is clean. The pump body 460 provides stable power to achieve efficient circulation of flushing fluid, reduce the amount of surface replenishment fluid, reduce operating costs, and avoid downhole risks caused by waste debris residue.

[0027] Reference Figure 5 As shown, in one embodiment, the glue injection mechanism 300 includes a first telescopic rod 310 and a glue injection tube 320, which work together to achieve precise glue injection. The first telescopic rod 310 is mounted on the rotary table 800 and is installed securely. The telescopic direction of the first telescopic rod 310 is perpendicular to the axis of the sleeve, which can push the glue injection tube 320 to accurately approach the drill hole. One end of the glue injection tube 320 is connected to the telescopic end of the first telescopic rod 310, and the other end extends into the inner wall of the sleeve, which facilitates insertion into the drill hole to deliver repair material. The glue injection tube 320 is coaxial with the drill bit 630 of the drilling assembly 600, ensuring that the glue injection tube 320 can be accurately aligned with the drill hole and avoiding leakage of repair materials. The glue injection mechanism 300 achieves precise feeding through the first telescopic rod 310. The coaxial design of the glue injection tube 320 and the drill bit 630 eliminates the complicated hole alignment process and improves the glue injection alignment accuracy. The repair material can fully fill the drill hole and the broken gap, enhancing the repair effect. At the same time, in conjunction with the rotary table 800, it further improves the continuity and efficiency of the operation.

[0028] Reference Figures 1-4 As shown, in one embodiment, the top of the housing 100 is provided with a connector 110, which can be connected to the downhole tubing to facilitate the equipment going downhole and being retrieved; the housing 100 is provided with a pipe 120 that communicates with the connector 110, the pipe 120 is coaxial with the housing 100, and can transport hydraulic oil, repair materials, etc., to provide power and material support for various mechanisms. The rotary table 800 is connected to the tube body 120 to ensure stable rotation of the rotary table 800. The rotary table 800 includes an annular plate 810, an external gear ring 820, a second motor 830, and a gear 840, which achieves rotation through gear transmission. The annular plate 810 is fitted with a tube body 120 to provide an installation plane for each mechanism; the external gear ring 820 is fixed on the lower surface of the annular plate 810 and fitted with the tube body 120; the second motor 830 is fixed on the tube body 120 to provide power for rotation; the gear 840 is set at the output end of the second motor 830 and meshes with the external gear ring 820, driving the annular plate 810 to rotate through gear transmission. The design of connector 110 and pipe body 120 facilitates the docking of the equipment with the downhole system and provides power and material support for each mechanism; the rotary table 800 achieves precise rotation through gear transmission, and the second motor 830 provides stable power to ensure that each mechanism can be accurately adjusted to the position to be repaired, thereby improving the ease of operation and position adjustment accuracy of the equipment.

[0029] Reference Figure 5 As shown, in one embodiment, the radial motion mechanism 200 includes a second telescopic rod 210, a slide rail 220, and a slider 230, and achieves precise radial drive through the cooperation of the telescopic rod and the slide rail. The second telescopic rod 210 and the slide rail 220 are respectively set on both sides of the upper surface of the annular plate 810, with a symmetrical layout to ensure smooth driving; the slider 230 is slidably connected to the slide rail 220, and the slide rail 220 provides guidance for the slider 230; the telescopic end of the second telescopic rod 210 is connected to the slider 230, which can push the slider 230 to slide along the slide rail 220. The retractable sealing sleeve 500 is mounted on the slider 230 and moves synchronously with the slider 230 to achieve radial position adjustment of the retractable sealing sleeve 500. The radial motion mechanism 200, through the cooperation of the second telescopic rod 210, the slide rail 220 and the slider 230, achieves precise radial drive of the telescopic sealing sleeve 500, ensuring that the drilling assembly 600 can accurately approach the area to be repaired on the sleeve; the guiding effect of the slide rail 220 prevents the slider 230 from deviating, improves the stability of drilling and sealing, and further ensures the accuracy and reliability of the operation.

[0030] Reference Figure 1 and Figure 10As shown, in one embodiment, the downhole power setting and drilling repair equipment also includes a slip mechanism 900, which can fix the position of the equipment inside the casing to ensure stable operation; slip mechanisms 900 are provided on both the upper and lower sides of the casing 120, and multiple slip mechanisms 900 are evenly distributed around the central axis of the casing 120 to ensure balanced force; the side wall of the housing 100 is provided with a through-hole corresponding to the slip mechanism 900 to provide space for the slip mechanism 900 to extend; the slip mechanism 900 includes a cylinder 910, a piston 920, a rod 930, a slip 940, an elastic element 950, and a valve body 960, and is fixed and reset by hydraulic drive. The cylinder body 910 is fixed to the outer wall of the pipe body 120 to provide space for hydraulic drive; and the inlet of the cylinder body 910 is connected to the pipe body 120 to facilitate the entry of hydraulic oil; the valve body 960 is fixed to the inlet of the cylinder body 910 to control the amount of liquid entering. The piston 920 is located inside the cylinder 910 and can move under hydraulic pressure. One end of the rod 930 is connected to the piston 920, and the other end passes through the outer end and port of the cylinder 910 and is connected to the slip 940, which can drive the slip 940 to extend or retract. The elastic element 950 is sleeved on the rod 930. One end of the elastic element 950 abuts against the outer wall of the piston 920, and the other end abuts against the inner wall of the outer end of the cylinder 910, which can assist the piston 920 in resetting. The valve body 960 is configured to control the liquid inlet flow of the slip mechanism 900, thereby controlling the extension length of the slip mechanism 900, adjusting the position of the drilling and repair equipment inside the casing, and ensuring that the equipment is centered or precisely positioned. The addition of a slip mechanism 900 enables stable fixation of the equipment within the casing, preventing equipment displacement during operation. Adjusting the extension length of each slip mechanism 900 via the valve body 960 allows for centered or precise positioning of the equipment, ensuring drilling and adhesive injection accuracy. The elastic element 950 assists in resetting, facilitating equipment recovery after operation and further enhancing the equipment's operational stability and ease of use.

[0031] Based on the aforementioned technical features, the working principle of the downhole dynamic setting and drilling repair equipment provided in this application in practical application scenarios is as follows: I. Equipment positioning and sealing fixation: After the equipment is lowered into the target area, the slip mechanism 900 is activated first to position the equipment: the valve 960 of the cylinder 910 inlet is opened, allowing high-pressure hydraulic oil in the tubing to flow into the cylinder 910 through the pipe 120. This pushes the piston 920 outward along the cylinder axis, thereby causing the rod 930 and slip 940 to extend out of the opening on the side wall of the casing 100 until the slip 940 is tightly against the inner wall of the casing. During this process, the inlet pressure of each slip mechanism 900 is monitored by the ground control system, and the inlet volume of each slip mechanism is adjusted by the valve 960 to control its extension length. If one side of the equipment is too close to the inner wall of the casing, the inlet volume of the slip mechanism on that side can be increased to extend it further, while the inlet volume of other slip mechanisms is appropriately reduced to ensure that the equipment is ultimately coaxially centered inside the casing, laying the foundation for subsequent vertical drilling.

[0032] After the slip mechanism 900 completes its positioning, the sealing mechanism is activated to achieve wellbore sealing. The sealing mechanism consists of a hydraulic sealing bladder installed on the outer wall of the casing 100, a connecting pipe 120 and a connecting pipe for the hydraulic sealing bladder, and a second valve body installed inside the connecting pipe. When sealing, the second valve body inside the connecting pipe is opened, and high-pressure hydraulic oil flows into the hydraulic sealing bladder through the pipe 120 and the connecting pipe, causing the elastic hydraulic sealing bladder to expand until it completely adheres to the inner wall of the casing, forming a closed isolation zone to prevent downhole fluid from flowing through during drilling and injection, thus avoiding contamination of the work area or affecting the repair effect.

[0033] II. Drilling Position Adjustment and Drilling Operation: After the equipment is fixed and sealed, the drilling position is adjusted according to the casing damage: the second motor 830 of the rotary table 800 is started, and the output end of the second motor drives the gear 840 to rotate. The gear 840 meshes with the outer gear ring 820 on the lower surface of the annular plate 810, driving the annular plate 810 to rotate around the pipe body 120 axis, thereby driving the radial motion mechanism 200, the glue injection mechanism 300 and the filter mechanism 400 on the annular plate to rotate synchronously. The position of the drilling assembly 600 is monitored in real time on the ground through a downhole camera or sonic positioning equipment. When the drilling assembly 600 rotates to the optimal drilling position in the casing damage area, the second motor 830 is turned off, the rotary table 800 stops rotating, and the coarse adjustment of the drilling position is completed.

[0034] Subsequently, the radial motion mechanism 200 is activated for fine-tuning of the drilling position: the second telescopic rod 210 is extended, pushing the slider 230 to move radially along the slide rail 220 towards the casing, causing the telescopic sealing sleeve 500 and the internal drilling assembly 600 to move closer to the inner wall of the casing. During this process, the inner ring 520 of the telescopic sealing sleeve 500, under the elastic force of the spring 550, extends synchronously from the outer cylinder 510 with the movement of the slider 230 until the rubber ring 530 at the outer end of the inner ring 520 contacts the inner wall of the casing; the slider 230 is then pushed further, and the spring 550 is compressed, generating a reaction force that causes the rubber ring 530 to fit tightly against the inner wall of the casing, forming a closed chamber to prevent the spillage of waste chips generated during subsequent drilling.

[0035] After the drilling position and sealing chamber are ready, the drilling assembly 600 and the spraying mechanism 700 are started to drill: the first motor 610 drives the drill bit 630 to rotate at high speed through the coupling 620, while the second telescopic rod 210 of the radial motion mechanism 200 continues to extend slowly, pushing the drill bit 630 to feed into the inner wall of the casing to achieve vertical drilling; at the same time, the pump body 460 of the filter mechanism 400 is started, and the pump body delivers the filtered cleaning flushing liquid to the annular pipe 730 through the second pipeline, the inlet pipe 710, and the telescopic hose 720. Then, through the cone-shaped nozzles 740 on the annular pipe, the flushing liquid is sprayed onto the contact drilling position between the drill bit 630 and the casing. The cone-shaped nozzles can cover the drilling area in all directions, which can reduce the heat generated by the high-speed rotation of the drill bit, extend the service life of the drill bit, and promptly flush away the metal waste generated during drilling, forming waste liquid containing waste waste.

[0036] III. Waste Collection and Waste Liquid Recirculation Filtration: Under the combined action of gravity and flushing fluid pressure, the waste liquid containing waste debris flows into the closed chamber of the retractable sealing sleeve 500, and then enters the barrel 410 of the filtration mechanism 400 through the drain end at the bottom of the inner ring 520 and the first pipeline, thus initiating the multi-stage filtration process. 1. Primary filtration - coarse filtration: The waste liquid first flows through the conical filter screen 420 at the top of the tank 410. The conical structure increases the filtration area and intercepts larger blocky waste particles in the waste liquid, such as metal fragments of the sleeve with a particle size greater than 1mm, to prevent them from clogging the subsequent filtration components. 2. Secondary filtration - fine filtration: The waste liquid after coarse filtration flows downward into the secondary filter screen 430. The secondary filter screen is made of 100-200 mesh stainless steel screen, which further intercepts flaky or granular waste debris with a particle size of 0.1-1mm. 3. Three-stage filtration - strong magnetic adsorption: The waste liquid after fine filtration enters the strong magnetic filter component 440 and flows through the spiral channel formed by the magnetic ring 442 in the through hole of the disc 441. The spiral plate 443 extends the flow path of the waste liquid, while the intercepting net 445 in the channel slows down the flow rate of the waste liquid, so that the fine metal debris with a particle size of less than 0.1mm in the waste liquid can fully contact the magnetic ring 442 of the strong magnetic material and be firmly adsorbed on the inner wall of the magnetic ring and the intercepting net, thus preventing the metal debris from re-entering the drilling area with the flushing liquid circulation; 4. Four-stage filtration - sedimentation filtration: The waste liquid that has completed strong magnetic adsorption continues to flow downward into the sedimentation filtration component 450. The conical cover 453 guides the waste liquid to flow slowly downward along the outer wall of the cover, so that the trace non-metallic impurities remaining in the waste liquid settle to the bottom of the tank 410 under the action of gravity. Finally, the clean flushing fluid enters the pump body 460 through the drain pipe 451 inside the conical cover 453. After being pressurized by the pump body, it is returned to the spraying mechanism 700 through the second pipeline, realizing the downhole recycling of flushing fluid, reducing the amount of surface workover fluid replenishment, and reducing operating costs.

[0037] IV. Glue injection repair work: After drilling is completed, the first motor 610 of the drilling assembly 600 is turned off, and the second telescopic rod 210 of the radial motion mechanism 200 is controlled to retract, driving the telescopic sealing sleeve 500 and the drill bit 630 back into the housing 100; then the second motor 830 of the rotary table 800 is started, driving the annular plate 810 to rotate 180°, so that the glue injection tube 320 of the glue injection mechanism 300 is coaxially aligned with the drilling position. Since the glue injection tube 320 and the drill bit 630 are designed to be coaxial, and the glue injection direction and the drilling direction are on the same plane, it can be ensured that the glue injection tube 320 is precisely aligned with the drill hole.

[0038] After the injection tube 320 is aligned with the drill hole, the first telescopic rod 310 of the injection mechanism 300 is extended, pushing the injection tube 320 out of the housing 100 until the injection tube end is inserted into the drill hole. Subsequently, through the ground pressurization equipment, epoxy resin and other repair materials are transported to the injection tube 320 via the oil pipe and pipe body 120. The injection tube injects the repair material under high pressure into the drill hole and the damaged gap of the casing. During the injection process, the injection pressure is monitored in real time by the ground pressure monitoring system. When the pressure reaches the preset value and stabilizes for a period of time, the injection is stopped, the first telescopic rod 310 is closed, and the injection tube 320 is retracted into the housing 100 to wait for the repair material to cure.

[0039] V. Equipment Recovery and Operation Completion: After the repair material has cured, the sealing mechanism and slip mechanism 900 are closed in sequence: the drain valve of the hydraulic sealing bladder is opened, allowing the hydraulic oil in the hydraulic sealing bladder to flow back to the pipe body 120, and the hydraulic sealing bladder contracts and separates from the inner wall of the casing; the drain valve of the cylinder body 910 is opened, allowing the hydraulic oil in the cylinder body 910 to flow back, and the piston 920 is reset under the rebound force of the elastic element 950, driving the rod body 930 and slip 940 to retract into the housing 100; finally, the equipment is lifted to the ground through the oil pipe, completing the entire casing repair operation.

[0040] In addition, after the operation is completed, the barrel 410 of the filter mechanism 400 can be cleaned: open the drain port at the bottom of the barrel to discharge the sedimented impurities, take out the conical filter screen 420, the secondary filter screen 430 and the strong magnetic filter component 440, clean the trapped waste and reassemble them to facilitate the reuse of the equipment.

[0041] The downhole power setting and drilling repair equipment provided in this application embodiment achieves high efficiency and safety in downhole casing repair through an integrated operation process of "positioning-drilling-chip removal-adhesive injection". Among them, the waste chip closed-loop treatment system composed of the telescopic sealing sleeve 500 and the filter mechanism 400 eliminates the risk of waste chip residue from the source and avoids accidents such as stuck drill and casing wear. The coordinated design of the rotary table 800 and the radial motion mechanism 200 ensures precise docking of drilling and adhesive injection, improving repair quality. The cooperation between the slip mechanism 900 and the sealing mechanism ensures the integrity of the wellbore during the operation, which meets the safety specifications and quality requirements of downhole operations in the oil and gas industry.

[0042] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0043] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A downhole dynamic setting and drilling repair device, characterized in that: Includes housing (100); The housing (100) is provided with a radial motion mechanism (200), a glue injection mechanism (300) and a filter mechanism (400). The moving end of the radial motion mechanism (200) is provided with a telescopic sealing sleeve (500). The telescopic sealing sleeve (500) is provided with a drilling assembly (600) and a spraying mechanism (700) arranged around the drilling assembly (600). The inlet end of the filter mechanism (400) is connected to the outlet end of the retractable sealing sleeve (500) through a first pipeline, and the outlet end of the filter mechanism (400) is connected to the inlet end of the spray mechanism (700) through a second pipeline. The drilling assembly (600) is configured to drill holes in the area of ​​the casing to be repaired; the spraying mechanism (700) is configured to spray flushing fluid onto the drilling location during the drilling process to flush away the waste chips generated during drilling and form waste liquid containing waste chips; the retractable sealing sleeve (500) is configured to fit against the inner wall of the casing drilling location to form a closed chamber for collecting the waste liquid containing waste chips; the filtering mechanism (400) is configured to perform solid-liquid separation on the waste liquid containing waste chips, filter and collect the waste chips, and return the filtered cleaning flushing fluid to the spraying mechanism (700); the adhesive injection mechanism (300) is configured to inject repair material into the drill hole to repair the casing.

2. The downhole dynamic setting and drilling repair equipment according to claim 1, characterized in that: The housing (100) is also provided with a rotating platform (800), and both sides of the rotating platform (800) are parallel to the radial direction of the sleeve. The radial motion mechanism (200) and the glue injection mechanism (300) are located at both ends of one side of the rotary table (800), and the filter mechanism (400) is located on the other side of the rotary table (800). The glue injection direction of the glue injection mechanism (300) is on the same plane as the drilling direction of the drilling assembly (600), and this plane is parallel to the side of the rotary table (800). The rotary table (800) is configured to rotate about the axis of the housing (100), driving the radial motion mechanism (200), the glue injection mechanism (300) and the filter mechanism (400) to rotate synchronously, so as to adjust the drilling assembly (600) and the glue injection mechanism (300) to the position of the sleeve to be repaired.

3. The downhole dynamic setting and drilling repair equipment according to claim 2, characterized in that: The retractable sealing sleeve (500) includes an outer cylinder (510), an inner ring (520), a rubber ring (530), a slider (540), and a spring (550); The outer cylinder (510) is disposed at the moving end of the radial motion mechanism (200), the open end of the outer cylinder (510) faces the radial direction of the sleeve, the outer wall of the inner ring (520) is inserted into the inner wall of the outer cylinder (510), and the outer end of the inner ring (520) extends out of the outer cylinder (510) and is connected to the rubber ring (530); The slider (540) is fixed to the outer wall of the inner ring (520). The inner wall of the outer cylinder (510) is provided with a groove that matches the slider (540). The slider (540) is inserted into the groove. One end of the spring (550) is connected to the inner wall of the groove, and the other end is connected to the outer wall of the slider (540).

4. The downhole dynamic setting and drilling repair equipment according to claim 3, characterized in that: The drilling assembly (600) includes a first motor (610), a coupling (620), and a drill bit (630). The first motor (610) is fixed to the inner wall of the outer cylinder (510), and the output end of the first motor (610) is connected to the drill bit (630) through the coupling (620). The first motor (610), the coupling (620), the drill bit (630), and the outer cylinder (510) are coaxial.

5. The downhole dynamic setting and drilling repair equipment according to claim 4, characterized in that: The spraying mechanism (700) includes an inlet pipe (710), a telescopic hose (720), an annular pipe (730), and a nozzle (740). The inlet pipe (710) is fixed to the outer wall of the outer cylinder (510), the annular pipe (730) is fixed to the inner wall of the inner annular body (520), and the telescopic hose (720) connects the inlet pipe (710) and the annular pipe (730). The annular tube (730) is coaxial with the inner annular body (520). The nozzle (740) is fixed on the annular tube (730), and multiple nozzles (740) are evenly distributed around the axis of the annular tube (730). One end of the nozzle (740) is connected to the annular tube (730), and the other end faces the casing and is inclined downward toward the drill bit (630). That is, multiple nozzles (740) are distributed in a conical shape.

6. The downhole dynamic setting and drilling repair equipment according to claim 5, characterized in that: The filtration mechanism (400) includes a barrel (410), a conical filter (420), a secondary filter (430), a strong magnetic filter assembly (440), a sedimentation filter assembly (450), and a pump body (460). The barrel (410) is fixed on the rotating table (800). The liquid inlet at the top of the barrel (410) is connected to the liquid outlet at the bottom of the inner ring (520) through a first pipeline. The conical filter (420), the secondary filter (430), the strong magnetic filter assembly (440), and the sedimentation filter assembly (450) are arranged sequentially from top to bottom inside the barrel (410). The pump body (460) is located at the bottom of the barrel (410) and connected to the sedimentation filter assembly (450). The strong magnetic filter assembly (440) includes a disc (441), a magnetic ring (442), a spiral plate (443), a column (444), and an interception net (445). The disk body (441) is provided with through holes, and multiple through holes are evenly distributed on the disk body (441). The magnetic ring (442) is disposed in the through holes. The outer end of the spiral blade (443) is fixedly connected to the inner wall of the magnetic ring (442). The outer wall of the column (444) is fixedly connected to the inner end of the spiral blade (443) so that a spiral channel is formed in the magnetic ring (442). The intercepting net (445) is disposed on the spiral blade (443). The two ends of the intercepting net (445) are respectively connected to the column (444) and the magnetic ring (442). Multiple intercepting nets (445) are evenly disposed in the spiral channel. The sedimentation and filtration assembly (450) includes a drain pipe (451), a connecting rod (452), and a conical cover (453). The drain pipe (451) is vertically installed inside the barrel (410), and its bottom end passes through the barrel (410) and is connected to the liquid inlet end of the pump body (460). The liquid outlet end of the pump body (460) is connected to the liquid inlet pipe (710) through the second pipeline. The top end of the drain pipe (451) is connected to the conical cover (453) through the connecting rod (452). The open end of the conical cover (453) is vertically downward, and its bottom end is parallel to the middle part of the drain pipe (451).

7. The downhole dynamic setting and drilling repair equipment according to claim 4, characterized in that: The glue injection mechanism (300) includes a first telescopic rod (310) and a glue injection tube (320). The first telescopic rod (310) is mounted on the rotating table (800). The telescopic direction of the first telescopic rod (310) is perpendicular to the axis of the sleeve. One end of the glue injection tube (320) is connected to the telescopic end of the first telescopic rod (310), and the other end extends toward the inner wall of the sleeve. The injection tube (320) is coaxial with the drill bit (630) of the drilling assembly (600).

8. The downhole dynamic setting and drilling repair equipment according to claim 2, characterized in that: The top of the housing (100) is provided with a connector (110), and the housing (100) is provided with a tube (120) that communicates with the connector (110), and the tube (120) is coaxial with the housing (100); The rotary table (800) is connected to the tube body (120). The rotary table (800) includes an annular plate (810), an external gear ring (820), a second motor (830), and a gear (840). The annular plate (810) is sleeved on the tube body (120), and the external toothed ring (820) is fixed on the lower surface of the annular plate (810) and sleeved on the tube body (120). The second motor (830) is fixed on the tube body (120), the gear (840) is disposed at the output end of the second motor (830), and the gear (840) meshes with the external gear ring (820).

9. The downhole dynamic setting and drilling repair equipment according to claim 8, characterized in that: The radial motion mechanism (200) includes a second telescopic rod (210), a slide rail (220), and a slider (230). The second telescopic rod (210) and the slide rail (220) are respectively disposed on both sides of the upper surface of the annular plate (810), the slider (230) is slidably connected to the slide rail (220), and the telescopic end of the second telescopic rod (210) is connected to the slider (230); The retractable sealing sleeve (500) is disposed on the slider (230).

10. The downhole dynamic setting and drilling repair equipment according to claim 8, characterized in that: The downhole power setting and drilling repair equipment also includes a slip mechanism (900). The slip mechanism (900) is provided on both the upper and lower sides of the tube body (120). Multiple slip mechanisms (900) are evenly distributed around the central axis of the tube body (120). The side wall of the shell (100) is provided with a through-hole corresponding to the slip mechanism (900). The slip mechanism (900) includes a cylinder (910), a piston (920), a rod (930), a slip (940), an elastic element (950), and a valve body (960). The cylinder (910) is fixed to the outer wall of the pipe (120), and the liquid inlet of the cylinder (910) is connected to the pipe (120). The valve body (960) is fixed to the liquid inlet of the cylinder (910). The piston (920) is disposed inside the cylinder (910), one end of the rod (930) is connected to the piston (920), and the other end passes through the outer end of the cylinder (910) and the port, and is connected to the slip (940); The elastic element (950) is sleeved on the rod (930), one end of the elastic element (950) abuts against the outer wall of the piston (920), and the other end abuts against the inner wall of the outer end of the cylinder (910); The valve body (960) is configured to control the liquid inlet of the slip mechanism (900), thereby controlling the extension length of the slip mechanism (900) and adjusting the position of the drilling and repair equipment inside the sleeve.

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