Intelligent torque-enhancing relay and drilling tool for drilling

Abstract

This invention discloses an intelligent torque booster repeater and drilling tool for drilling. It comprises a torque booster module, an anchoring module, a power module, and a control module. The torque booster module has an axially extending anchoring rail on its outer surface for connecting the drill string at both ends and driving the drill string to rotate. The anchoring module is movably connected to the torque booster module via the anchoring rail. The power module is sleeved on the outside of the torque booster module and movably connected to the anchoring module, used to drive the anchoring module to expand or contract circumferentially. The control module is electrically connected to the torque booster module and the power module, used to control the operation of the torque booster module and the power module. The torque booster repeater disclosed in this invention can intelligently anchor circumferentially to the casing at a certain well depth by changing the displacement, and provide torque to the drill string, thereby reducing the torque borne by the drill string during drilling at the wellhead, reducing drill string risk, and greatly extending the depth that the drill bit can reach.

Description

Technical Field

[0001] This invention relates to the field of geothermal, oil and gas drilling technology, and particularly to an intelligent torque repeater and drilling tool for drilling. Background Technology

[0002] As oil and gas reservoir exploration and development deepens, the demand for drilling deep wells, ultra-deep wells, and extended reach wells is gradually increasing. The deeper the well, the greater the torque required by the drilling tools, which inevitably places higher demands on the rotary table or top drive. The torsional resistance of the drilling tools also faces severe challenges, increasing the risk of drill bit failure during drilling. Currently, the common method is to add lubricating materials to the drilling fluid to reduce the torque resistance experienced by the drilling tools during drilling. However, this method not only fails to significantly increase drilling depth but also greatly increases the cost of drilling fluid materials. Even worse, the inability to reduce drilling torque necessitates adjustments to the geological target, ultimately failing to effectively guarantee the achievement of exploration objectives. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a smart torque repeater and drilling tool for drilling that overcomes or at least partially solves the above problems.

[0004] In a first aspect, embodiments of the present invention provide an intelligent torque boosting repeater for drilling, comprising:

[0005] Torque boosting module, anchoring module, power module, and control module;

[0006] The outer surface of the torque-enhancing module is provided with an axially extending anchoring rail for connecting the upper and lower ends of the drill bit and driving the drill bit to rotate.

[0007] The anchoring module is movably connected to the torque-increasing module via the anchoring rail;

[0008] The power module is sleeved outside the torque-increasing module and is movably connected to the anchoring module, used to drive the anchoring module to expand or contract circumferentially;

[0009] The control module is electrically connected to the torque boosting module and the power module, and is used to control the operation of the torque boosting module and the power module.

[0010] In one embodiment, the torque-increasing module includes:

[0011] Inner stator, permanent magnet water-eye rotor, and outer stator;

[0012] The inner wall and outer wall of the inner stator are respectively embedded with a first coil winding and a second coil winding; the first coil winding and the second coil winding are electrically connected;

[0013] The permanent magnet water-eye rotor is disposed inside the inner stator, and a first permanent magnet group is embedded in the outer wall, and a spiral guide vane is disposed inside; the spiral guide vane is used to drive the permanent magnet water-eye rotor to rotate under the action of drilling fluid;

[0014] The outer stator is sleeved on the outside of the inner stator, and a second permanent magnet assembly is embedded in the inner wall.

[0015] In one embodiment, the power module includes:

[0016] Multiple drive motors and a linkage mechanism located below the drive motors;

[0017] The drive motor is circumferentially embedded within the control module; the control module is ring-shaped and sleeved on the outside of the torque-increasing module;

[0018] The drive motor includes a drive screw that drives the linkage mechanism to move; the drive screw is connected to the linkage mechanism;

[0019] The drive motor is electrically connected to the control module and is used to rotate forward or reverse according to the instructions of the control module, so that the drive screw drives the linkage mechanism to move downward or upward.

[0020] In one embodiment, the linkage mechanism includes:

[0021] Slide plate and slide plate base;

[0022] The push plate is sleeved on the outside of the inner stator, and its upper end face is provided with multiple screw holes; the screw holes are used to connect with the drive screw.

[0023] The push plate seat is sleeved on the outside of the inner stator and is located below the push plate; the upper end face of the push plate seat is in sliding contact with the lower end face of the push plate;

[0024] The lower end face of the push plate base is provided with multiple push shafts that drive the anchoring module to move;

[0025] The pusher plate is used to drive the pusher plate seat to move downward or upward under the drive screw, thereby driving the anchoring module to expand or contract circumferentially.

[0026] In one embodiment, the anchoring module includes:

[0027] Anchor plate, first anchor support, second anchor support, and steering joint;

[0028] Both ends of the anchoring plate are movably connected to one end of the first anchoring support and one end of the second anchoring support, respectively; the anchoring plate is provided with multiple anchoring wheels;

[0029] The other ends of the first anchoring support and the second anchoring support are respectively connected to the steering joint;

[0030] The steering joint is installed inside the anchoring rail; the steering joint is connected to the push shaft;

[0031] The steering joint is used to move along the anchoring track under the drive of the push shaft, thereby causing the first anchoring support and the second anchoring support to move relative to or towards each other, and in turn causing the anchoring disc to expand or contract circumferentially, so as to realize the anchoring or release of the anchoring disc on the sleeve.

[0032] In one embodiment, the control module is configured to acquire a voltage signal from the torque boosting module, determine displacement data based on the voltage signal, and control the torque boosting module and the power module to operate based on the displacement data.

[0033] In one embodiment, the control module is configured to control the drive motor to rotate forward or reverse based on the displacement data, thereby driving the linkage mechanism to move downward or upward, so as to drive the steering joint to move downward or upward along the anchoring track, thereby driving the anchoring plate to expand or contract circumferentially, realizing the anchoring or unanchoring of the anchoring plate; and to control the circuit between the first coil winding and the second coil winding to connect or disconnect, so as to drive the inner stator to rotate or stop driving.

[0034] In one embodiment, it also includes:

[0035] Voltage monitoring plate and magnetic detection plate;

[0036] The voltage monitoring chip is electrically connected to the control module;

[0037] The voltage monitoring plate and the detection magnetic plate are installed inside the torque-increasing module in a cross-shaped manner;

[0038] The magnetic plate used to detect magnetic fields is used to generate magnetic fields;

[0039] The voltage monitoring chip is used to generate a voltage difference between two monitoring chips when the drilling fluid flows through the magnetic field. The magnitude of the voltage difference is affected by the flow rate, and the voltage signal is sent to the control module.

[0040] In one embodiment, it further includes: an outer stator thrust seat; the outer stator is seated on the outer stator thrust seat for limiting the axial movement of the outer stator;

[0041] The first ball groove is located on the upper surface of the outer stator thrust seat, and a ball is installed in the ball groove.

[0042] The second ball groove is located on the lower end face of the push plate, and a ball is installed in the ball groove.

[0043] A spring; the spring is fitted between the push plate seat and the outer stator.

[0044] In one embodiment, it also includes:

[0045] Water-eye rotor fixing anchor and water-eye rotor fixing seat;

[0046] The water-eye rotor fixing anchor and the water-eye rotor fixing seat are respectively connected to the upper and lower ends of the central shaft set inside the permanent magnet water-eye rotor, and are used to restrict the axial movement of the permanent magnet water-eye rotor.

[0047] In one embodiment, it further includes a battery for power supply.

[0048] Secondly, embodiments of the present invention provide a drilling tool including the aforementioned intelligent torque-boosting repeater.

[0049] The beneficial effects of the above-described technical solutions provided in the embodiments of the present invention include at least the following:

[0050] The intelligent torque-boosting repeater for drilling provided in this invention can intelligently anchor itself circumferentially on the casing at a certain well depth by changing the displacement, and provide torque to the drill string. This reduces the torque borne by the drill string during drilling, lowers the risk to the drill string, and greatly extends the depth that the drill bit can reach. The entire process only requires controlling the displacement change without any other human intervention, thus maximizing the realization of intelligence.

[0051] Furthermore, the combined design of the inner stator, permanent magnet water-eye rotor, and outer stator in the torque-enhancing module can convert the kinetic energy of the drilling fluid into electrical energy, and then convert the electrical energy back into kinetic energy to drive the drill bit rotation.

[0052] Furthermore, the structural design of the control module, power module, and anchoring module, working in tandem, ensures smooth and natural circumferential anchoring. The control module sends working commands to the electrically connected power module to achieve the anchoring purpose. The control module can control the forward and reverse rotation of the drive motor, enabling intelligent anchoring or de-anchoring of the anchoring module to the inner wall of the casing.

[0053] Furthermore, the control module can send working commands to the torque-increasing module electrically connected to it to realize the rotation or stop rotation of the inner stator relative to the outer stator, thereby realizing the intelligent application or cessation of torque application to the drill bit by the torque-increasing module.

[0054] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0055] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0056] Figure 1 This is a front view of the intelligent torque-increasing repeater in an embodiment of the present invention;

[0057] Figure 2 This is a longitudinal cross-sectional view of the intelligent torsion-increasing device in an embodiment of the present invention;

[0058] Figure 3 This is a front view of the inner stator in an embodiment of the present invention;

[0059] Figure 4 This is a longitudinal sectional view of the inner stator in an embodiment of the present invention;

[0060] Figure 5 This is a front view of the permanent magnet water-eye rotor in an embodiment of the present invention;

[0061] Figure 6 This is a longitudinal sectional view of the permanent magnet water-eye rotor in an embodiment of the present invention;

[0062] Figure 7 This is a three-dimensional view of the outer stator in an embodiment of the present invention;

[0063] Figure 8 This is a front view of the outer stator in an embodiment of the present invention;

[0064] Figure 9 This is a cross-sectional view of the outer stator in an embodiment of the present invention;

[0065] Figure 10 This is a longitudinal sectional view of the outer stator in an embodiment of the present invention;

[0066] Figure 11 This is a schematic diagram of the water-eye rotor fixing anchor structure in an embodiment of the present invention;

[0067] Figure 12 This is a schematic diagram of the bearing structure in an embodiment of the present invention;

[0068] Figure 13 This is a schematic diagram of the control module structure in an embodiment of the present invention;

[0069] Figure 14 This is a schematic diagram of the drive motor structure in an embodiment of the present invention;

[0070] Figure 15 This is a longitudinal sectional view of the pusher plate in an embodiment of the present invention;

[0071] Figure 16 This is a three-dimensional view of the pusher plate in an embodiment of the present invention;

[0072] Figure 17 This is a schematic diagram of the push plate base structure in an embodiment of the present invention;

[0073] Figure 18 This is a schematic diagram of the spring structure in an embodiment of the present invention;

[0074] Figure 19 This is a schematic diagram of the anchoring module structure in an embodiment of the present invention;

[0075] Figure 20 This is a schematic diagram of the steering joint structure in an embodiment of the present invention;

[0076] Figure 21 This is a schematic diagram of the intelligent torque-increasing repeater circuit in an embodiment of the present invention;

[0077] Figures 22-25 This is a schematic diagram of the controller program provided in an embodiment of the present invention.

[0078] Explanation of reference numerals in the attached figures:

[0079] 1. Inner stator; 1.1 First coil winding; 1.2 Second coil winding; 1.3 Internal thread; 1.4 Controller pin hole; 1.5 Voltage monitoring plate and detection magnetic plate mounting slot; 1.6 Water eye rotor fixing anchor mounting slot; 1.7 First ball groove; 1.8 Outer stator thrust seat; 1.9 Water eye rotor fixing seat; 1.10 External thread; 2. Permanent magnet water eye rotor; 2.1 First permanent magnet group; 2.2 Spiral guide vane; 2.3 Central shaft; 3. Outer stator; 3.1 Second permanent magnet group; 3.2 T-shaped track groove; 3.3 First pin hole; 3.4 First push shaft hole; 4. Control module; 4.1 Battery; 4.2 Controller; 4.3 Motor mounting slot; 4.4 Second pin hole; 5. Drive motor; 5.1 Limiting key; 5.2 Drive screw; 6. Push plate; 6.1 Screw hole; 6.2 Second ball groove; 7. Push plate seat; 7.1 Push plate seat body; 7.2 Push shaft; 8. Anchoring module; 8.1 First anchoring support; 8.2 Anchoring plate; 8.3 Anchoring wheel; 8.4 Connecting pin; 8.5 Fourth pin hole; 8.6 Second anchoring support; 9. Diverting joint; 9.1 Second push shaft hole; 9.2 Fifth pin hole; 9.3 Sixth pin hole; 10. Spring; 11. Water eye rotor fixing anchor; 11.1 Cross-shaped support frame; 11.2 Bearing groove; 12. Bearing. Detailed Implementation

[0080] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0081] It should be noted that all uses of "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of the present invention. Subsequent embodiments will not explain this in detail.

[0082] In a first aspect, embodiments of the present invention provide an intelligent torque-boosting repeater for drilling, referring to... Figure 1 and Figure 2 ,include:

[0083] Torque-increasing module, anchoring module 8, power module and control module 4;

[0084] The outer surface of the torque-enhancing module is provided with an axially extending anchoring rail for connecting the upper and lower ends of the drill bit and driving the drill bit to rotate.

[0085] Anchoring module 8 is movably connected to torque-increasing module via anchoring rail;

[0086] The power module is sleeved on the outside of the torque-increasing module and is movably connected to the anchoring module 8, and is used to drive the anchoring module 8 to expand or contract circumferentially;

[0087] Control module 4 is electrically connected to the torque boosting module and the power module, and is used to control the operation of the torque boosting module and the power module.

[0088] The torque-boosting repeater provided in this invention can intelligently anchor itself circumferentially on the casing at a certain well depth by changing the displacement, and provide torque to the drill string, thereby reducing the torque borne by the drill string during drilling, reducing drill string risk, and greatly extending the depth that the drill bit can drill to.

[0089] In one embodiment, the torque-increasing module includes: an inner stator 1, a permanent magnet water-eye rotor 2, and an outer stator 3; a first coil winding 1.1 and a second coil winding 1.2 are respectively embedded in the inner wall and the outer wall of the inner stator 1; the first coil winding 1.1 and the second coil winding 1.2 are electrically connected; the permanent magnet water-eye rotor 2 is disposed inside the inner stator 1, and a first permanent magnet group 2.1 is embedded in the outer wall, and a spiral guide vane 2.2 is disposed inside; the spiral guide vane 2.2 is used to drive the permanent magnet water-eye rotor 2 to rotate under the action of drilling fluid; the outer stator 3 is sleeved on the outside of the inner stator 1, and a second permanent magnet group 3.1 is embedded in the inner wall.

[0090] In one embodiment, the power module includes: a plurality of drive motors 5 and a linkage mechanism located below the drive motors 5; the drive motors 5 are circumferentially embedded in the control module 4; the control module 4 is annular and sleeved outside the torque-increasing module; the drive motors 5 include drive screws 5.2 that drive the linkage mechanism to move; the drive screws 5.2 are connected to the linkage mechanism; the drive motors 5 are electrically connected to the control module 4 and are used to rotate forward or reverse according to the instructions of the control module 4, so that the drive screws 5.2 drive the linkage mechanism to move downward or upward.

[0091] In one embodiment, the linkage mechanism includes: a push plate 6 and a push plate base 7; the push plate 6 is sleeved on the outside of the inner stator 1, and its upper end face is provided with a plurality of screw holes 6.1; the screw holes 6.1 are used to connect with the drive screw 5.2; the push plate base 7 is sleeved on the outside of the inner stator 1 and is located below the push plate 6; the push plate base 7 includes a push plate base body 7.1 and a push shaft 7.2, the upper end face of the push plate base body 7.1 is in sliding contact with the lower end face of the push plate 6; the lower end face of the push plate base body 7.1 is provided with a plurality of push shafts 7.2 for driving the anchoring module 8 to move; the push plate 6 is used to drive the push plate base 7 to move downward or upward under the drive of the drive screw 5.2, thereby driving the anchoring module 8 to expand or contract circumferentially.

[0092] In one embodiment, the anchoring module 8 includes: an anchoring disc, a first anchoring support 8.1, a second anchoring support 8.6, and a steering joint 9; both ends of the anchoring disc are movably connected to one end of the first anchoring support 8.1 and the second anchoring support 8.6, respectively; the anchoring disc is provided with a plurality of anchoring wheels; the other ends of the first anchoring support 8.1 and the second anchoring support 8.6 are respectively connected to the steering joint 9; the steering joint 9 is installed in the anchoring track; the steering joint 9 is connected to the push shaft 7.2; the steering joint 9 is used to move along the anchoring track under the drive of the push shaft 7.2, thereby driving the first anchoring support 8.1 and the second anchoring support 8.6 to move relative to or towards each other, and thus driving the anchoring disc to expand or contract circumferentially, thereby realizing the anchoring or release of the anchoring disc from the sleeve.

[0093] In one embodiment, the control module 4 is used to acquire the voltage signal in the torque boosting module, determine the displacement data based on the voltage signal, and control the torque boosting module and the power module to work based on the displacement data.

[0094] In one embodiment, the control module 4 is used to control the drive motor 5 to rotate forward or reverse based on displacement data, thereby driving the linkage mechanism to move downward or upward, so as to drive the steering joint 9 to move downward or upward along the anchoring track, thereby driving the anchoring plate to expand or contract circumferentially, and realizing the anchoring or unanchoring of the anchoring plate; and to control the circuit between the first coil winding 1.1 and the second coil winding 1.2 to connect or disconnect, so as to drive the inner stator 1 to rotate or stop rotating.

[0095] In one embodiment, it further includes: a voltage monitoring plate and a magnetic detection plate; the voltage monitoring plate is electrically connected to the control module 4; the voltage monitoring plate and the magnetic detection plate are installed inside the torque-increasing module in a cross-shaped manner; the magnetic detection plate is used to generate a magnetic field; the voltage monitoring plate is used to generate a voltage difference relative to the two monitoring plates when the drilling fluid flows through the magnetic field, the magnitude of which is affected by the displacement, and sends the voltage signal to the control module 4.

[0096] In one embodiment, the device further includes: a first ball groove 1.7; the first ball groove 1.7 is disposed on the lower end face of the push plate 6, and a ball is installed in the ball groove; a spring; the spring is fitted between the push plate seat body 7 and the outer stator 3; the outer stator 3 is seated on the outer stator thrust seat 1.8 to restrict the axial movement of the outer stator 3; and a second ball groove 6.2; the second ball groove 6.2 is disposed on the upper end face of the outer stator thrust seat 1.8, and a ball is installed in the ball groove.

[0097] In one embodiment, it further includes: a water-eye rotor fixing anchor 11 and a water-eye rotor fixing seat 1.9, which are respectively connected to the upper end and the lower end of the central shaft 2.3 provided inside the permanent magnet water-eye rotor 2, and are used to restrict the axial movement of the permanent magnet water-eye rotor 2.

[0098] In one embodiment, it further includes a battery 4.1 for power supply.

[0099] In one embodiment, the intelligent torque booster repeater includes a torque booster module, an anchoring module 8, a power module, a control module 4, a voltage monitoring plate, and a detection magnetic plate, which are connected together by pins or threads to form a tool that can connect to the drill string at a certain well depth by changing the displacement. It is intelligently circumferentially anchored to the inner wall of the casing to provide torque to the drill string. This torque booster repeater reduces the torque borne by the drill string at the wellhead, reduces the drilling risk of the drill string, and greatly extends the depth that the drill bit can drill.

[0100] In one embodiment, refer to Figures 3 to 10The torque-enhancing module includes an inner stator 1, a permanent magnet water-eye rotor 2, and an outer stator 3. The inner stator 1, permanent magnet water-eye rotor 2, and outer stator 3 are all cylindrical. The top of the inner stator 1 has an internal thread 1.3 for connection to the upper drilling tool, and the bottom has an external thread 1.10 for connection to the lower drilling tool. A first coil winding 1.1 is embedded in the inner wall of the lower part of the inner stator 1. The permanent magnet water-eye rotor 2 is located in the inner stator 1, at its lower part, and its outer wall is uniformly embedded with a first permanent magnet group 2.1, meaning that the first permanent magnet group 2.1 is spatially surrounded by the first coil winding 1.1. The permanent magnet water-eye rotor 2 has a spiral guide vane 2.2 internally connected, with a central shaft 2.3 in the middle. The spiral guide vane 2.2 rotates as drilling fluid flows through it, driving the permanent magnet water-eye rotor 2 to rotate. This causes the first coil winding 1.1 to generate current during the rotation of the permanent magnet water-eye rotor 2, converting the kinetic energy of the drilling fluid into electrical energy. A second coil winding 1.2 is embedded on the outer wall of the middle part of the inner stator 1. The outer stator 3 is sleeved outside the inner stator 1, located in the middle of the inner stator 1. A second permanent magnet group 3.1 is evenly embedded on its inner wall, meaning that the second coil winding 1.2 is spatially surrounded by the second permanent magnet group 3.1. The second coil winding 1.2 is electrically connected to the first coil winding 1.1. When the first coil winding 1.1 supplies power to the second coil winding 1.2, the inner stator 1 rotates, driving the drill string connected above and below to rotate, thus providing torque to the drill string, converting the generated electrical energy into kinetic energy to provide torque.

[0101] In one embodiment, the inner stator 1 further includes a water-jet rotor fixing anchor, a water-jet rotor fixing seat 1.9, and a bearing 12. Specifically, refer to... Figure 11 Spring and Figure 12 The water-eye rotor is fixed by a cross-shaped support frame 11.1, with a bearing groove 11.2 machined in the middle. The bearing groove 11.2 is used to install the bearing 12, which includes a first bearing and a second bearing, respectively fitted onto the upper and lower ends of the permanent magnet water-eye rotor 2. (Refer to...) Figure 2 The inner ring of bearing 12 mates with the central shaft 2.3 of the permanent magnet water-eye rotor 2, and the outer ring of bearing 12 is connected to the water-eye rotor fixing anchor 11 and the water-eye rotor fixing seat 1.9 respectively. The water-eye rotor fixing anchor 11 is installed in the water-eye rotor fixing anchor mounting groove 1.6 provided in the inner stator 1. The water-eye rotor fixing anchor 11 and the water-eye rotor fixing seat 1.9 are used to restrict the axial movement of the permanent magnet water-eye rotor 2, and bearing 12 is used to reduce the rotational resistance of the permanent magnet water-eye rotor 2.

[0102] In one embodiment, refer to Figure 2The inner stator 1 has internally spaced mounting slots 1.5 for installing voltage monitoring plates and detection magnetic plates. Specifically, the voltage monitoring plates and detection magnetic plates are arc-shaped, including two voltage monitoring plates and two first detection magnetic plates. For example, when the voltage monitoring plates and detection magnetic plates are arc-shaped, the line connecting the two voltage monitoring plates is perpendicular to the line connecting the two detection magnetic plates. The detection magnetic plates are used to generate a magnetic field to change the voltage signal when affected by displacement, and the voltage monitoring plates are used to monitor the voltage signal.

[0103] In one embodiment, refer to Figure 3 and Figure 4 An outer stator thrust seat 1.8 is sleeved around the inner stator 1, located below the second coil winding 1.2, to restrict the axial movement of the outer stator 3. Ball bearings are disposed between the bottom end of the outer stator 3 and the upper surface of the outer stator thrust seat 1.8, and these balls are located within a first ball bearing groove 1.7 circumferentially arranged on the upper end face of the outer stator thrust seat 1.8. Specifically, the first ball bearing groove 1.7 adopts a semi-circular design to prevent the balls within it from falling out. (Refer to...) Figures 7 to 10 The outer surface of the outer stator 3 is axially spaced with anchoring rails. Specifically, the anchoring rails can be T-shaped rail grooves 3.2, with the inner groove being larger than the outer groove to prevent the anchoring module 8 from falling off. (Refer to...) Figure 8 and Figure 9 The bottom of the outer stator 3 has a first pin hole 3.3 for connecting with the steering joint 9 via a pin, and the top of the outer stator 3 has a first push shaft hole 3.4 for passing through the push shaft 7.2 in the push plate seat 7.

[0104] In one embodiment, refer to Figure 1 , Figure 2 and Figure 13 The control module 4 is ring-shaped and sleeved on the outside of the inner stator 1. Specifically, the control module 4 is provided with a second pin hole 4.4, and correspondingly, the inner stator is provided with a controller pin hole 1.4. The control module 4 is fixed to the upper part of the inner stator 1 by a pin passing through the second pin hole 4.4 and the controller pin hole 1.4. The control module 4 is provided with motor mounting slots 4.3 at intervals along the circumference for mounting the drive motor 5. Inside the control module 4, from top to bottom, are the battery 4.1 and the controller 4.2. The battery 4.1 is used to power the control module 4, and the controller 4.2, for example, can be a 51 microcontroller, which is the core of the entire tool. Below the control module 4 is the power module, and below the power module is the anchoring module 8.

[0105] In one embodiment, refer to Figure 1 , Figure 2 , Figures 14 to 18 The power module includes multiple drive motors 5 and a linkage mechanism, wherein the linkage mechanism includes a push plate 6 and a push plate base 7. (Refer to...) Figure 14The drive motor 5 is cylindrical in shape; for example, a stepper motor with a brake function can be used to achieve forward and reverse rotation. It has limiting keys 5.1 machined on both sides to prevent the drive motor 5 from rotating. At its bottom is a drive screw 5.2, which engages with a screw hole 6.1 on the push plate 6 in the linkage mechanism to push the push plate 6 up and down. (Refer to...) Figure 15 and Figure 16 The push plate 6 is cylindrical, with a screw hole 6.1 machined on the upper part and a second ball groove 6.2 machined on the bottom for installing balls. The second ball groove 6.2 adopts a semi-circular design to prevent the balls from falling out. (Refer to...) Figure 17 The push plate base 7 is cylindrical, with the top being the push plate base body 7.1, the upper surface of which contacts the balls in the second ball groove 6.2; the lower part is the push shaft 7.2, used to connect with the anchoring module 8 and push the anchoring module 8 to expand or contract circumferentially. (Refer to...) Figure 1 , Figure 2 and Figure 18 A spring 10 is fitted between the push plate body 7.1 and the outer stator 3 to limit the axial movement of the outer stator 3, while keeping the entire tool in a taut state to prevent local vibration.

[0106] In one embodiment, refer to Figure 19 and Figure 20 The anchoring module 8 includes an anchoring disc 8.2, a first anchoring support 8.1, a second anchoring support 8.6, and a steering joint 9. The anchoring disc 8.2 is equipped with an anchoring wheel 8.3, the outer side of which is sharp, used to circumferentially anchor the torque-increasing repeater to the inner wall of the sleeve, but not to restrict the axial movement of the torque-increasing repeater. One end of the first anchoring support 8.1 and the second anchoring support 8.6 are respectively connected to the anchoring disc 8.2 via connecting pins 8.4. The other end of the first anchoring support 8.1 or the second anchoring support 8.6 is provided with a fourth pin hole 8.5, which is connected to the steering joint 9 via a pin. (Refer to...) Figure 1 , Figure 7 and Figure 9 The steering joint 9 is installed within the T-shaped track groove 3.2. Specifically, it is generally square in shape, with a fifth pin hole 9.2 machined on one side for connection with the first anchoring support 8.1 or the second anchoring support 8.6, and a second push shaft hole 9.1 and a sixth pin hole 9.3 machined on the other side for connection to the end of the push shaft 7.2. Thus, the up-and-down movement of the push shaft 7.2 drives the steering joint 9 to move within the T-shaped track groove 3.2, thereby causing the anchoring plate 8.2 to expand or contract circumferentially.

[0107] In one embodiment, refer to Figure 21The controller 4.2 includes a microcontroller, an analog-to-digital converter (ADC), and a drive unit. The ADC is connected to both the voltage monitoring chip and the microcontroller, receiving voltage signals from the voltage monitoring chip and converting them into digital signals for transmission to the microcontroller. The drive unit can be, for example, a high-voltage, high-current Darlington array chip, which has high voltage and current withstand capabilities and can withstand the large current load required for driving. The microcontroller receives the voltage signal, or digital signal, processes it, and then sends commands to the power module and torque-increasing module. Specifically, the microcontroller determines the displacement data by filtering and calculating the received voltage signal. Based on the changes in the voltage signal, it determines the displacement change. Firstly, it controls the operation of the power module and the anchoring module 8 based on the displacement change. For example, the microcontroller sends a command to the drive motor 5 to rotate forward or reverse. For instance, when the displacement change exceeds a first threshold, the drive motor 5 is controlled to rotate forward to drive the anchoring module 8 to expand circumferentially for anchoring. When the displacement change exceeds a second threshold, the drive motor 5 is controlled to rotate in reverse to drive the anchoring module 8 to contract circumferentially to release the anchor. The first and second thresholds can be set according to actual application conditions, and are not specifically limited here. Secondly, the operation of the torque-increasing module is controlled according to the displacement change. A circuit switch can be set between the first coil winding 1.1 and the second coil winding 1.2, and electrically connected to the drive device in the controller 4.2. For example, the microcontroller sends a command to the circuit switch to turn on or off the circuit between the first coil winding 1.1 and the second coil winding 1.2. For instance, when the displacement changes to be greater than the first threshold, the circuit switch is turned on, and the inner stator 1 rotates to apply torque to the drill bit. When the displacement changes to be greater than the second threshold, the circuit switch is turned off, and the inner stator 1 stops rotating and no longer applies torque to the drill bit. The first and second thresholds can be set according to actual application conditions, and are not specifically limited here.

[0108] In one embodiment, the installation steps of the intelligent torque-boosting repeater of the present invention are as follows:

[0109] 1. Install the voltage monitoring chip and the detection magnetic chip into the voltage monitoring chip mounting slot and the detection magnetic chip mounting slot using screws;

[0110] 2. Install the permanent magnet water eye rotor 2 into the inner stator 1;

[0111] 3. Install the anchoring module 8 on the anchoring rail of the outer stator 3;

[0112] IV. Write the program into controller 4.2;

[0113] 5. Connect the outer stator 3, push plate seat 7, push plate 6 and controller 4.2 to the inner stator 1.

[0114] In one embodiment, the program reference written to controller 4.2 Figures 22 to 25The intelligent torque-boosting repeater of this invention can obtain real-time displacement changes by monitoring the voltage changes within the inner stator 1. It sends signals to the controller 4.2 based on these displacement data changes, causing the controller 4.2 to control the drive motor 5 to rotate forward or reverse according to the input signals. This drives the power module to anchor or de-anchor the anchoring module 8 circumferentially to the inner wall of the casing. It also controls the electrical connection or disconnection between the first coil winding 1.1 and the second coil winding 1.2, thereby driving the torque-boosting module to apply torque to the drill bit or stop applying torque. The rotational speed of the drive motor 5 can be controlled by a delay time (DelayMs), which can be set according to the actual application.

[0115] Secondly, embodiments of the present invention also provide a drilling tool, including the aforementioned intelligent torque-boosting repeater.

[0116] The embodiments of the present invention have at least the following beneficial effects:

[0117] By changing the displacement, the drill bit can be intelligently circumferentially anchored on the casing at a certain well depth and provide torque to the drill string. This reduces the torque borne by the drill string during drilling, lowers the risk to the drill string, and greatly extends the depth that the drill bit can reach. The entire process only requires controlling the displacement change without any other human intervention, thus maximizing the realization of intelligence.

[0118] Furthermore, the combined design of the inner stator 1, permanent magnet water-eye rotor 2, and outer stator 3 in the torque-enhancing module can convert the kinetic energy of the drilling fluid into electrical energy, and then convert the electrical energy back into kinetic energy to drive the drill bit rotation.

[0119] Furthermore, the structural design of the control module 4, power module, and anchoring module 8, working in conjunction, ensures smooth and natural circumferential anchoring of the anchoring module 8. The control module 4 sends working commands to the electrically connected power module to achieve the anchoring purpose of the anchoring module 8. The control module 4 can control the forward and reverse rotation of the drive motor 5, enabling intelligent anchoring or de-anchoring of the anchoring module 8 to the inner wall of the sleeve.

[0120] Furthermore, the control module 4 can send working commands to the torque-increasing module electrically connected to it to realize the rotation or stop rotation of the inner stator 1 relative to the outer stator 3, thereby realizing the intelligent application or cessation of torque application to the drill bit by the torque-increasing module.

[0121] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. The sequence numbers of the disclosed embodiments of this invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0122] It should be understood that, as used herein, the singular form “a” is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, “and / or” refers to any and all possible combinations of one or more of the associated listed items.

[0123] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A smart torque-boosting repeater for drilling, characterized in that, include: Torque boosting module, anchoring module, power module, and control module; The outer surface of the torque-enhancing module is provided with an axially extending anchoring rail for connecting the upper and lower ends of the drill bit and driving the drill bit to rotate. The anchoring module is movably connected to the torque-increasing module via the anchoring rail; The power module is sleeved outside the torque-increasing module and is movably connected to the anchoring module, used to drive the anchoring module to expand or contract circumferentially; The control module is electrically connected to the torque boosting module and the power module, and is used to control the operation of the torque boosting module and the power module.

2. The torque-increasing repeater as described in claim 1, characterized in that, The torque-increasing module includes: Inner stator, permanent magnet water-eye rotor, and outer stator; The inner wall and outer wall of the inner stator are respectively embedded with a first coil winding and a second coil winding; the first coil winding and the second coil winding are electrically connected; The permanent magnet water-eye rotor is disposed inside the inner stator, and a first permanent magnet group is embedded in the outer wall, and a spiral guide vane is disposed inside; the spiral guide vane is used to drive the permanent magnet water-eye rotor to rotate under the action of drilling fluid; The outer stator is sleeved on the outside of the inner stator, and a second permanent magnet assembly is embedded in the inner wall.

3. The torque-increasing repeater as described in claim 2, characterized in that, The power module includes: Multiple drive motors and a linkage mechanism located below the drive motors; The drive motor is circumferentially embedded within the control module; the control module is ring-shaped and sleeved on the outside of the torque-increasing module; The drive motor includes a drive screw that drives the linkage mechanism to move; the drive screw is connected to the linkage mechanism; The drive motor is electrically connected to the control module and is used to rotate forward or reverse according to the instructions of the control module, so that the drive screw drives the linkage mechanism to move downward or upward.

4. The torque-increasing repeater as described in claim 3, characterized in that, The linkage mechanism includes: Push plate and push plate base; The push plate is sleeved on the outside of the inner stator, and its upper end face is provided with multiple screw holes; the screw holes are used to connect with the drive screw. The push plate seat is sleeved on the outside of the inner stator and is located below the push plate; the upper end face of the push plate seat is in sliding contact with the lower end face of the push plate; The lower end face of the push plate base is provided with multiple push shafts that drive the anchoring module to move; The pusher plate is used to drive the pusher plate seat to move downward or upward under the drive screw, thereby driving the anchoring module to expand or contract circumferentially.

5. The torque-increasing repeater as described in claim 4, characterized in that, The anchoring module includes: Anchor plate, first anchor support, second anchor support, and steering joint; Both ends of the anchoring plate are movably connected to one end of the first anchoring support and one end of the second anchoring support, respectively; the anchoring plate is provided with multiple anchoring wheels; The other ends of the first anchoring support and the second anchoring support are respectively connected to the steering joint; The steering joint is installed inside the anchoring rail; the steering joint is connected to the push shaft; The steering joint is used to move along the anchoring track under the drive of the push shaft, thereby causing the first anchoring support and the second anchoring support to move relative to or towards each other, and in turn causing the anchoring disc to expand or contract circumferentially, so as to realize the anchoring or release of the anchoring disc on the sleeve.

6. The torque-increasing repeater as described in claim 5, characterized in that, The control module is used to acquire the voltage signal in the torque boosting module, determine the displacement data based on the voltage signal, and control the torque boosting module and the power module to work based on the displacement data.

7. The torque-increasing repeater as described in claim 6, characterized in that, The control module is used to control the drive motor to rotate forward or reverse based on the displacement data, thereby driving the linkage mechanism to move downward or upward, so as to drive the steering joint to move downward or upward along the anchoring track, thereby driving the anchoring plate to expand or contract circumferentially, realizing the anchoring or unanchoring of the anchoring plate; and to control the circuit between the first coil winding and the second coil winding to connect or disconnect, so as to drive the inner stator to rotate or stop driving.

8. The torque-increasing repeater as described in claim 7, characterized in that, Also includes: Voltage monitoring plate and magnetic detection plate; The voltage monitoring chip is electrically connected to the control module; The voltage monitoring plate and the detection magnetic plate are installed inside the torque-increasing module in a cross-shaped manner; The magnetic plate used to detect magnetic fields is used to generate magnetic fields; The voltage monitoring chip is used to generate a voltage difference between two monitoring chips when the drilling fluid flows through the magnetic field. The magnitude of the voltage difference is affected by the flow rate, and the voltage signal is sent to the control module.

9. The torque-increasing repeater as described in any one of claims 1-8, characterized in that, Also includes: Outer stator thrust seat; the outer stator is seated on the outer stator thrust seat to restrict the axial movement of the outer stator; The first ball groove is located on the upper surface of the outer stator thrust seat, and a ball is installed in the ball groove. The second ball groove is located on the lower end face of the push plate, and a ball is installed in the ball groove. A spring; the spring is fitted between the push plate seat and the outer stator.

10. The torque-increasing repeater as described in claim 9, characterized in that, Also includes: Water-eye rotor fixing anchor and water-eye rotor fixing seat; The water-eye rotor fixing anchor and the water-eye rotor fixing seat are respectively connected to the upper and lower ends of the central shaft set inside the permanent magnet water-eye rotor, and are used to restrict the axial movement of the permanent magnet water-eye rotor.

11. The torque-increasing repeater as described in claim 10, characterized in that, Also includes: Batteries used for power supply.

12. A drilling tool, characterized in that, Including the torque-increasing repeater as described in any one of claims 1-11.

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