Open-pit mine aquifer branch hole while-drilling leaking stoppage and drainage integrated drilling tool

By designing a combination of bidirectional adjustment and stabilization mechanisms, the integrated drilling tool for plugging and draining water in open-pit mine aquifer branch holes was used to achieve instant plugging and stability improvement. This solved the problem of untimely delivery of plugging agent in long-distance drilling, and improved drilling efficiency and borehole stability.

CN121407863APending Publication Date: 2026-01-27INNER MONGOLIA DATANG INT XILINHAOTE MINING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511828331.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-01-27

AI Technical Summary

Technical Problem

Existing drilling tools suffer from problems such as untimely delivery of plugging agent during long-distance drilling, leading to borehole wall collapse and drilling fluid waste.

Method used

A drilling tool integrating plugging and drainage in aquifer branch holes of open-pit mines is designed. It adopts a bidirectional adjustment mechanism and a stabilization mechanism. Through the cooperation of elastic adjustment components and adjustment opening and closing components, the plugging agent can be delivered in real time and the drilling fluid can be delivered normally, avoiding the mixing of plugging agent and drilling fluid.

Benefits of technology

This method enables the accurate delivery of plugging agent to the lost circulation zone, avoiding waste of plugging agent and drilling fluid, improving drilling efficiency and borehole stability, and reducing the occurrence of borehole collapse accidents.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121407863A_ABST
    Figure CN121407863A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of drilling tools, in particular to a strip mine aquifer branch hole while-drilling leaking stoppage and drainage integrated drilling tool which comprises a drill rod mechanism and a drill bit mechanism arranged at the bottom end of the drill rod mechanism, a two-way adjusting mechanism is arranged between the drill rod mechanism and the drill bit mechanism, and double flow channels are formed in the two-way adjusting mechanism. The outer side of the bidirectional adjusting mechanism is fixedly connected with a stabilizing mechanism; through cooperation of the elastic adjusting assembly and the opening and closing adjusting assembly, drilling fluid can be normally conveyed, the plugging agent cannot be discharged, when a leakage layer is detected, the elastic adjusting assembly resets to drive the opening and closing adjusting assembly to move, and the plugging agent can be accurately and directly conveyed to the leakage layer through a discharging groove and an auxiliary chip discharging groove of the stabilizing mechanism; waste of the plugging agent and the drilling fluid is avoided, meanwhile, the plugging agent can be prevented from being in contact with upward-returning mud liquid in the discharging process, and it is ensured that the plugging agent can be concentrated at the leakage position to play a role.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of drilling tools, specifically to an integrated drilling tool for plugging and draining water in branch holes of open-pit mine aquifers. Background Technology

[0002] This drilling tool is an integrated drilling tool specifically designed for the complex geological conditions of aquifers in open-pit mines. Its core function is to achieve integrated operation of "drilling and plugging leaks" and "drainage and slurry removal". Its design purpose is to drain the aquifer, lower the groundwater level, effectively mitigate the impact of groundwater on slope stability, and ensure production safety.

[0003] The main components of existing drilling tools, such as Figure 1 The diagram shows a drill rod connected to a directional drilling rig. At the end of the drill rod furthest from the directional drilling tool, an upper non-magnetic drill rod, a measuring probe, and a lower non-magnetic drill rod are connected in sequence. The upper and lower non-magnetic drill rods are used to avoid the influence of magnetic fields in the geological strata on the detection results. A roller cone drill bit is connected to the bottom of the lower non-magnetic drill rod, and the roller cone drill bit is driven by a bottom hole motor to perform drilling.

[0004] Existing technology involves introducing drilling fluid into the drill string. When plugging is needed, a plugging agent is added to the drilling fluid, and the drilling fluid delivery pressure is increased to open the plugging hole, allowing the plugging agent to be discharged and plugging the leak. While this can achieve plugging to some extent, in long-distance drilling operations, adding the plugging agent to the drilling fluid after discovering the lost zone makes it difficult to deliver the plugging agent to the lost zone in a timely manner. Furthermore, as the plugging agent is delivered, the drilling fluid ahead of it continues to be transported forward, and some of the drilling fluid may flow into the lost zone, causing the lost zone to collapse and subsequently the borehole wall to collapse. Moreover, the drilling fluid that flows into the lost zone cannot be recovered, resulting in drilling fluid waste.

[0005] Therefore, the present invention provides an integrated drilling tool that can deliver plugging agent instantly for plugging work, which is less likely to cause borehole wall collapse and improves drilling fluid utilization. Summary of the Invention

[0006] To address the problems of untimely delivery of plugging agent and the risk of borehole collapse in existing technologies during long-distance drilling, an integrated drilling tool for plugging and drainage of branch holes in open-pit mine aquifers has been designed.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an integrated drilling tool for plugging and draining water in a branch hole of an open-pit mine aquifer, including a drill rod mechanism and a drill bit mechanism set at the bottom end of the drill rod mechanism. A bidirectional adjustment mechanism is provided between the drill rod mechanism and the drill bit mechanism. The mechanism has a double flow channel inside. A stabilizing mechanism is fixedly connected to the outside of the bidirectional adjustment mechanism. The bidirectional adjustment mechanism includes an elastic adjustment component set inside. An adjustment opening and closing component is fixedly connected to the outside of the elastic adjustment component.

[0008] During drilling operations, the bidirectional adjustment mechanism delivers drilling fluid and plugging agent to the internal flow channels of the mechanism via the drill pipe mechanism. The elastic adjustment component moves downward under the pressure of the drilling fluid, simultaneously driving the adjustment opening and closing component to move and block the plugging agent. When a lost circulation zone is detected, the drilling fluid delivery stops. At this time, the elastic adjustment component loses pressure and resets, driving the adjustment opening and closing component to move. The plugging agent is no longer blocked, and the plugging agent delivery pressure is increased. With the cooperation of the stabilizing mechanism, the plugging agent is delivered to the lost circulation zone to plug the leak.

[0009] Furthermore, the bidirectional adjustment mechanism also includes a rod body connected to the drill pipe mechanism. The rod body has a uniformly distributed first flow channel and a second flow channel inside. A transfer cavity is provided in the middle of the rod body. A fixed plate is fixedly connected to the bottom of the rod body. An elastic adjustment component is fixedly connected to the upper end of the fixed plate. An adjustment opening and closing component is slidably installed inside the rod body. The bottom of the second flow channel extends into the transfer cavity.

[0010] Furthermore, the rod body includes an internally provided abutting surface that abuts against the elastic adjustment component, a fixed rod is fixedly connected inside the rod body, and a sliding groove is provided inside the rod body, through which the adjustment opening and closing component is slidably connected to the rod body.

[0011] Furthermore, the elastic adjustment component includes a fixing member fixedly connected to the upper end of the fixing plate, an adjustment member slidably connected to the outside of the fixing member, and a spring provided inside the fixing member, with both ends of the spring fixedly connected to the inside of the adjustment member and the upper end of the fixing plate, respectively.

[0012] Furthermore, the adjustment opening and closing assembly includes a sliding member fixedly connected to the outside of the adjustment member, and the upper end of the sliding member is provided with uniformly distributed discharge holes.

[0013] Furthermore, the elastic adjustment component is connected to the contact surface through an adjusting member, and can contact and separate from the contact surface. When the elastic adjustment component is adjusted, the adjusting member can slide on the outside of the fixed rod. A hole is opened on the outer wall of the rod, which passes through the slide groove that is slidably connected to the adjustment opening and closing component. The sliding member is slidably connected to the rod through the slide groove. The hole opened on the outer wall of the rod matches the discharge hole. A hole matching the discharge hole is opened on the outside of the transfer cavity.

[0014] Furthermore, the stabilizing mechanism includes a stabilizing component fixedly connected to the outside of the bidirectional adjustment mechanism, a uniformly distributed third flow channel inside the stabilizing component, a uniformly distributed discharge groove inside the stabilizing component, and multiple sets of inclined auxiliary chip discharge grooves on the outer wall of the stabilizing component.

[0015] Furthermore, the stabilizer is fixedly connected to the outer wall of the rod body. The outer wall size of the stabilizer is slightly smaller than the maximum drilling size of the drill bit mechanism. The end of the discharge chute near the rod body matches the hole opened on the outer wall of the rod body. The cross-sectional size of the third flow channel gradually decreases from the end near the drill bit mechanism to the end near the drill rod mechanism, and the third flow channel is inclined. The end of the discharge chute away from the rod body extends to the auxiliary chip removal chute. Each set of auxiliary chip removal chute is set on the outer wall of the stabilizer body where the third flow channel is not opened.

[0016] Furthermore, the drill rod mechanism includes several fixedly connected cable drill rods. An upper non-magnetic drill rod is fixedly connected to the bottom end of the cable drill rod. A measuring probe is fixedly connected to the bottom end of the upper non-magnetic drill rod. A lower non-magnetic drill rod is fixedly connected to the bottom end of the measuring probe. The bottom end of the lower non-magnetic drill rod is fixedly connected to a bidirectional adjustment mechanism.

[0017] The beneficial effects of this invention are:

[0018] (1) The present invention provides an integrated drilling tool for plugging and draining water in a branch hole of an open-pit mine aquifer. Through the cooperation of the elastic adjustment component and the adjustment opening and closing component, the drilling fluid can be transported normally while the plugging agent cannot be discharged. When the lost zone is detected, the elastic adjustment component resets and drives the adjustment opening and closing component to move. The plugging agent can be accurately transported directly to the lost zone through the discharge chute and auxiliary chip removal chute of the stabilizing mechanism, avoiding the waste of plugging agent and drilling fluid. At the same time, it can avoid contact with the upward-flowing mud during the discharge process, ensuring that the plugging agent can concentrate on the lost zone and play its role. Through the cooperation of the bidirectional adjustment mechanism and the stabilizing mechanism, the conversion from drilling to plugging is realized quickly, which greatly shortens the operation time and improves the overall drilling efficiency.

[0019] (2) The drilling tool for plugging and draining water in the branch hole of the open-pit mine aquifer described in this invention has an outer wall size of the stabilizer in the stabilizing mechanism that is slightly smaller than the maximum drilling size of the drill bit mechanism. In long-distance directional drilling, it can enhance the guiding stability of the drill bit mechanism. At the same time, the stabilizer can also absorb the vibration transmitted by the drill bit mechanism and transmit it to the hole wall. This vibration transmission can make the stabilizer contact the hole wall better, enhance the stability of the hole wall, and reduce the occurrence of accidents such as hole wall collapse. When the drilling fluid carries the cuttings back up, the cross-sectional size of the third flow channel inside the stabilizer gradually decreases from the end near the drill bit mechanism to the end near the drill rod mechanism and is set at an inclination. This can guide the mud to flow quickly along the inclination direction. At the end of the third flow channel, the mud will disturb each other, which further increases the mixing effect of the drilling fluid and the cuttings. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the drill string structure referenced in this invention;

[0022] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the cable-connecting drill rod structure of the present invention;

[0024] Figure 4 This is a top view of the cable-connecting drill rod structure of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the bidirectional adjustment mechanism and stabilization mechanism of the present invention;

[0026] Figure 6 This is a top view of the bidirectional adjustment mechanism structure of the present invention;

[0027] Figure 7 This is a top view of the bidirectional adjustment mechanism and stabilizing mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the stabilizing mechanism structure of the present invention;

[0029] Figure 9 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention;

[0030] Figure 10 This is a cross-sectional view of the stabilizing component structure of the present invention;

[0031] Figure 11 This is a partial cross-sectional view of the bidirectional adjustment mechanism of the present invention;

[0032] Figure 12 For the present invention Figure 11 Enlarged view of a portion at point A;

[0033] Figure 13 This is a schematic diagram of the internal structure of the bidirectional adjustment mechanism of the present invention;

[0034] Figure 14 This is a cross-sectional view of the rod structure of the present invention;

[0035] Figure 15 This is a schematic diagram of the elastic adjustment component structure under the working state of the present invention;

[0036] Figure 16 For the present invention Figure 15 A magnified view of section B;

[0037] Figure 17 This is a partial cross-sectional view of the elastic adjustment component of the present invention.

[0038] In the diagram: 1. Drill rod mechanism; 11. Cable-guided drill rod; 12. Upper non-magnetic drill rod; 13. Lower non-magnetic drill rod; 2. Measuring probe; 3. Drill bit mechanism; 4. Bidirectional adjustment mechanism; 41. Rod body; 411. Contact surface; 412. Fixing rod; 42. First flow channel; 43. Second flow channel; 44. Transfer chamber; 45. Elastic adjustment assembly; 451. Adjusting component; 452. Fixing component; 453. Spring; 46. Adjustment opening and closing assembly; 461. Sliding component; 462. Discharge hole; 47. Fixing plate; 5. Stabilizing mechanism; 51. Stabilizing component; 52. Third flow channel; 53. Discharge chute; 54. Auxiliary chip removal chute; 6. Leakage layer. Detailed Implementation

[0039] To make the technical means, technical features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0040] Example: Figure 1 - Figure 17 As shown, the present invention provides an integrated drilling tool for plugging and draining water in a branch hole of an open-pit mine aquifer, comprising a drill rod mechanism 1 and a drill bit mechanism 3 disposed at the bottom end of the drill rod mechanism 1. A bidirectional adjustment mechanism 4 is provided between the drill rod mechanism 1 and the drill bit mechanism 3, which has a dual flow channel inside. A stabilizing mechanism 5 is fixedly connected to the outside of the bidirectional adjustment mechanism 4. The bidirectional adjustment mechanism 4 includes an elastic adjustment component 45 disposed inside, and an adjustment opening and closing component 46 is fixedly connected to the outside of the elastic adjustment component 45.

[0041] Specifically, during drilling operations, the drilling fluid and plugging agent are delivered to the first flow channel 42 and the second flow channel 43 respectively through the surface pumping system and the drill pipe mechanism 1. As the drilling fluid is injected, the elastic adjustment component 45 is compressed by the pressure of the spring 453, so that the drilling fluid is discharged through the drain port set on the outside of the drill bit mechanism 3. At the same time, as the elastic adjustment component 45 is compressed, the adjustment opening and closing component 46 moves down, thereby blocking the plugging agent.

[0042] When the lost circulation zone 6 is detected, drilling and drilling fluid delivery are stopped. Then, the elastic adjustment component 45 is reset due to the pressure reduction caused by the drilling fluid, which drives the adjustment opening and closing component 46 to move. The plugging agent is unobstructed and discharged into the lost circulation zone 6 through the discharge chute 53 inside the stabilizing mechanism 5. The stabilizing component 51 can prevent the plugging agent from contacting the mud and being affected by it, thereby improving the utilization rate of the plugging agent. When the aquifer is reached, the drilling fluid carrying rock cuttings and water is driven by the mud pump set on the ground to return to the ground along the drill pipe mechanism 1 and the borehole wall, and the water and rock cuttings are separated by a vibrating screen.

[0043] In this embodiment, the bidirectional adjustment mechanism 4 also includes a rod 41 connected to the drill rod mechanism 1. The rod 41 has a uniformly distributed first flow channel 42 and a second flow channel 43 inside. A transfer cavity 44 is provided in the middle of the rod 41. A fixing plate 47 is fixedly connected to the bottom of the rod 41. An elastic adjustment component 45 is fixedly connected to the upper end of the fixing plate 47. An adjustment opening and closing component 46 is slidably installed inside the rod 41. The bottom of the second flow channel 43 extends into the transfer cavity 44.

[0044] Specifically, such as Figure 6 and Figure 11 - Figure 17 As shown, rod 41 is used to connect drill pipe mechanism 1 and drill bit mechanism 3. First flow channel 42 is used for drilling fluid flow, and second flow channel 43 is used for plugging agent flow. Multiple sets of first flow channels 42 and second flow channels 43 are staggered. Transfer chamber 44 is used to store plugging agent in conjunction with adjustment opening and closing component 46 during drilling operation. During plugging operation, it is used as a transfer section to supply plugging agent flow in conjunction with adjustment opening and closing component 46. The plugging agent inside the second flow channel 43 eventually flows into the transfer chamber 44. Elastic adjustment component 45 is used to adjust the delivery of drilling fluid and plugging agent in conjunction with adjustment opening and closing component 46. During drilling operation, drilling fluid can be delivered normally, while plugging agent cannot be discharged. During plugging operation, plugging agent can be discharged normally, while drilling fluid cannot be delivered. During plugging operation, elastic adjustment component 45 prevents cuttings mixed with drilling fluid from flowing back by blocking the drilling fluid delivery channel.

[0045] In this embodiment, the rod 41 includes an internally disposed contact surface 411, which is in contact with the elastic adjustment component 45. A fixed rod 412 is fixedly connected inside the rod 41. A sliding groove is provided inside the rod 41. The adjustment opening and closing component 46 is slidably connected to the rod 41 through the sliding groove. The elastic adjustment component 45 includes a fixing member 452 fixedly connected to the upper end of the fixing plate 47. An adjusting member 451 is slidably connected to the outside of the fixing member 452. A spring 453 is disposed inside the fixing member 452. The two ends of the spring 453 are fixedly connected to the inside of the adjusting member 451 and the upper end of the fixing plate 47, respectively. The adjustment opening and closing component 46 includes a sliding member 461 fixedly connected to the outside of the adjusting member 451. A uniformly distributed discharge hole 462 is provided at the upper end of the sliding member 461.

[0046] Specifically, Figure 11 - Figure 17As shown, the fixed rod 412 is used to assist in connecting the drill pipe mechanism 1 and the drill bit mechanism 3, and also provides support for the internal structure of the rod body 41. The elastic adjustment component 45 is connected to the contact surface 411 through the adjusting member 451. It can contact and separate from the contact surface 411 to control the flow of drilling fluid. When the elastic adjustment component 45 is adjusted, the adjusting member 451 can slide on the outside of the fixed rod 412. The outer wall of the rod body 41 has a hole that extends into the groove that is slidably connected to the adjusting opening and closing component 46. The sliding member 461 is slidably connected to the rod body 41 through the groove. The hole in the outer wall of the rod body 41 The hole matches the discharge hole 462. The outer side of the transfer cavity 44 is provided with a hole that matches the discharge hole 462. During drilling, the sliding member 461 blocks the hole on the outer side of the transfer cavity 44 to prevent the plugging agent from being discharged. During plugging, the upper end of the sliding member 461 is provided with a discharge hole 462 that is aligned with the hole in the transfer cavity 44 so that the plugging agent can be discharged and flows into the discharge trough 53 through the rod 41. Finally, it is discharged into the leakage layer 6 in conjunction with the auxiliary chip removal trough 54 to plug the leak. The elastic adjustment component 45 and the adjustment opening and closing component 46 can also be set to any other structure that can achieve the same effect.

[0047] In this embodiment, the stabilizing mechanism 5 includes a stabilizing member 51 fixedly connected to the outside of the bidirectional adjustment mechanism 4. The stabilizing member 51 has a uniformly distributed third flow channel 52 inside and a uniformly distributed discharge groove 53 inside. The outer wall of the stabilizing member 51 has multiple sets of inclined auxiliary chip removal grooves 54. The stabilizing member 51 is fixedly connected to the outer wall of the rod 41. The end of the discharge groove 53 near the rod 41 matches the hole in the outer wall of the rod 41. The end of the discharge groove 53 away from the rod 41 extends through to the auxiliary chip removal groove 54. Each set of auxiliary chip removal grooves 54 is located on the outer wall of the stabilizing member 51 where the third flow channel 52 is not opened.

[0048] Specifically, such as Figures 8-10As shown, the outer wall dimension of the stabilizer 51 is slightly smaller than the maximum drilling dimension of the drill bit mechanism 3. During long-distance directional drilling, this enhances the guiding stability of the drill bit mechanism 3, preventing it from deviating from the preset path. Simultaneously, the stabilizer 51 absorbs vibrations transmitted by the drill bit mechanism 3, allowing it to contact the borehole wall and improve its stability. The third flow channel 52 gradually decreases in cross-sectional size from one end near the drill bit mechanism 3 to the other end near the drill pipe mechanism 1. Furthermore, the third flow channel 52 is inclined, guiding the mud to flow rapidly along the inclined direction. The mud will also agitate at the end of the third flow channel 52, increasing... The mixing effect of drilling fluid and cuttings is enhanced to prevent excessive accumulation of cuttings in local areas, thus ensuring that the drilling mud can continuously and stably carry cuttings. The plugging agent can avoid contact with the returning drilling mud by passing through the discharge chute 53. At the same time, the stabilizer 51 has a shielding effect and works with the auxiliary cuttings discharge chute 54 to allow the plugging agent to be directly discharged to the lost circulation zone 6, improving the utilization rate of the plugging agent. The auxiliary cuttings discharge chute 54 is trapezoidal, with the bottom width being greater than the top width. The bottom width ensures the passage of cuttings, while the top narrowness reduces drilling fluid adhesion. The stabilizing mechanism 5 can also be set as any other mechanism that can achieve the same effect.

[0049] In this embodiment, the drill rod mechanism 1 includes several fixedly connected cable drill rods 11. The bottom end of the cable drill rod 11 is fixedly connected to an upper non-magnetic drill rod 12. The bottom end of the upper non-magnetic drill rod 12 is fixedly connected to a measuring probe 2. The bottom end of the measuring probe 2 is fixedly connected to a lower non-magnetic drill rod 13. The bottom end of the lower non-magnetic drill rod 13 is fixedly connected to a bidirectional adjustment mechanism 4.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, several sets of cable-driven drill pipes 11 are designed according to the required drilling depth. They are transported by a device set on the ground through a directional drilling tool for data transmission and command issuance. The measuring probe 2 is used to measure wellbore trajectory parameters, and at the same time, it feeds back drilling status information and detects lost circulation zones 6. The upper non-magnetic drill pipe 12 and the lower non-magnetic drill pipe 13 avoid the influence of magnetic fields in the geological layers on the detection results. Multiple sets of cable-driven drill pipes 11 are fixedly connected by threads. The drill bit mechanism 3 includes a bottom hole motor and a roller cone drill bit. The drill bit is slightly inclined to adjust the drilling direction. The bottom hole motor is driven by the output drilling fluid, which drives the drill bit to rotate for drilling.

[0051] Working principle: During drilling, the drilling fluid and plugging agent are delivered to the first flow channel 42 and the second flow channel 43 respectively by the surface pumping system in conjunction with the drill pipe mechanism 1. As the drilling fluid is injected, the elastic adjustment component 45 is compressed by the pressure of the spring 453, which causes the adjustment component 451 to disengage from the contact surface 411. The drilling fluid flows into the drill bit mechanism 3 through the bidirectional adjustment mechanism 4 and is discharged through the drain outlet on the outside of the drill bit mechanism 3. Then, the bottom hole motor rotates and the drill bit rotates to carry out drilling. At the same time, as the elastic adjustment component 45 is compressed, the adjustment opening and closing component 46 moves down, which blocks the plugging agent and prevents it from being wasted.

[0052] When the lost circulation zone 6 is detected, drilling and drilling fluid delivery are stopped. Then, the elastic adjustment component 45 is reset due to the pressure reduction caused by the drilling fluid. The spring 453 drives the adjustment component 451 to move, and the adjustment component 451 drives the adjustment opening and closing component 46 to move. As the sliding component 461 moves, the outer hole of the transfer chamber 44 is connected to the discharge hole 462. Then, the plugging agent is unobstructed and discharged through the discharge hole 462 to the discharge trough 53 inside the stabilizing mechanism 5. It is then discharged through the discharge trough 53 to the lost circulation zone 6 to plug the leak. The stabilizing component 51 can prevent the plugging agent from contacting the mud and being affected by it, thereby improving the utilization rate of the plugging agent.

[0053] When the aquifer is reached, the drilling fluid, carrying rock cuttings and water, is driven by a mud pump installed on the ground to return to the ground along the drill pipe mechanism 1 and the borehole wall, and the water and rock cuttings are separated by a vibrating screen.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated drilling tool for plugging and draining water in a branch hole of an open-pit mine aquifer, comprising a drill rod mechanism and a drill bit mechanism disposed at the bottom end of the drill rod mechanism, characterized in that: A bidirectional adjustment mechanism is provided between the drill rod mechanism and the drill bit mechanism. The mechanism has two flow channels inside and a stabilizing mechanism is fixedly connected to the outside of the bidirectional adjustment mechanism. The bidirectional adjustment mechanism includes an internally installed elastic adjustment component, and an adjustment opening and closing component is fixedly connected to the outside of the elastic adjustment component. During drilling operations, the bidirectional adjustment mechanism delivers drilling fluid and plugging agent to the internal flow channels of the bidirectional adjustment mechanism via the drill pipe mechanism. The elastic adjustment component moves downward under the pressure of the drilling fluid, simultaneously driving the adjustment opening and closing component to move and block the plugging agent. When a lost circulation zone is detected, the drilling fluid delivery is stopped. At this time, the elastic adjustment component loses pressure and resets, driving the adjustment opening and closing component to move. The plugging agent, no longer blocked, is delivered to the lost circulation zone in conjunction with the stabilization mechanism to plug the leak.

2. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 1, characterized in that: The bidirectional adjustment mechanism also includes a rod body connected to the drill pipe mechanism. The rod body has a uniformly distributed first flow channel and a second flow channel inside. A transfer cavity is provided in the middle of the rod body. A fixed plate is fixedly connected to the bottom of the rod body. An elastic adjustment component is fixedly connected to the upper end of the fixed plate. An adjustment opening and closing component is slidably installed inside the rod body. The bottom of the second flow channel extends into the transfer cavity.

3. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 2, characterized in that: The rod includes an internal contact surface that abuts against the elastic adjustment component. A fixed rod is fixedly connected inside the rod, and a sliding groove is provided inside the rod. The adjustment opening and closing component is slidably connected to the rod through the sliding groove.

4. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 3, characterized in that: The elastic adjustment assembly includes a fixing member fixedly connected to the upper end of the fixing plate, an adjustment member slidably connected to the outside of the fixing member, and a spring provided inside the fixing member, with both ends of the spring fixedly connected to the inside of the adjustment member and the upper end of the fixing plate, respectively.

5. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 3, characterized in that: The adjustment opening and closing assembly includes a sliding member fixedly connected to the outside of the adjustment member, and the upper end of the sliding member has evenly distributed discharge holes.

6. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 4, characterized in that: The elastic adjustment component is connected to the contact surface through the adjustment member. It can contact and separate from the contact surface. When the elastic adjustment component is adjusted, the adjustment member can slide on the outside of the fixed rod. The outer wall of the rod has a hole that passes through the slide groove that is slidably connected to the adjustment opening and closing component. The sliding member is slidably connected to the rod through the slide groove. The hole on the outer wall of the rod matches the discharge hole. The outer side of the transfer cavity has a hole that matches the discharge hole.

7. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 1, characterized in that: The stabilizing mechanism includes a stabilizing component fixedly connected to the outside of the bidirectional adjustment mechanism. The stabilizing component has a uniformly distributed third flow channel inside, a uniformly distributed discharge groove inside, and multiple sets of inclined auxiliary chip discharge grooves on the outer wall of the stabilizing component.

8. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 7, characterized in that: The stabilizer is fixedly connected to the outer wall of the rod. The outer wall size of the stabilizer is slightly smaller than the maximum drilling size of the drill bit mechanism. The end of the discharge chute near the rod body matches the hole opened on the outer wall of the rod body. The cross-sectional size of the third flow channel gradually decreases from the end near the drill bit mechanism to the end near the drill rod mechanism, and the third flow channel is inclined. The end of the discharge chute away from the rod body extends to the auxiliary chip removal chute. Each set of auxiliary chip removal chute is set on the outer wall of the stabilizer where the third flow channel is not opened.

9. The integrated drilling tool for plugging and draining leakage in branch holes of open-pit mine aquifers according to claim 7, characterized in that: The drill rod mechanism includes several fixedly connected cable drill rods. An upper non-magnetic drill rod is fixedly connected to the bottom end of the cable drill rod. A measuring probe is fixedly connected to the bottom end of the upper non-magnetic drill rod. A lower non-magnetic drill rod is fixedly connected to the bottom end of the measuring probe. The bottom end of the lower non-magnetic drill rod is fixedly connected to a bidirectional adjustment mechanism.