A multidimensional impact turbine drill string

Abstract

This invention belongs to the field of oil and gas extraction technology, specifically relating to a multi-dimensional impact turbine drilling tool. It aims to solve the problems of difficulty in breaking rock in hard formations in deep and ultra-deep wells, and the generally low lifespan, high cost, and immature technology of existing impact drilling tools both domestically and internationally. The invention includes: a drive mechanism comprising a turbine rotor and a drive spindle; the turbine rotor is driven to rotate by drilling fluid, and is rotatably connected to the drive spindle, which is connected to a control mechanism; the control mechanism includes an upper plate valve and a lower plate valve, the lower plate valve being threadedly connected to the drive spindle, used to connect and disconnect the lower and upper plate valves and generate pressure, which is then transmitted to the impact mechanism; the impact mechanism includes a helical spline shaft, which generates axial displacement upon receiving pressure, producing axial and axial impact forces. This invention provides a sustainable and efficient simultaneous axial and circumferential impact to the drilling tool, which is beneficial for impact-assisted rock breaking and friction reduction.

Description

Technical Field

[0001] This invention belongs to the field of oil and gas extraction technology, and specifically relates to a multi-dimensional impact turbine drill bit. Background Technology

[0002] With the depletion of shallow oil and gas resources in my country, there is a growing need to develop deeper formations. However, deep well and ultra-deep well drilling operations in these formations are often carried out in harsh environments with high temperatures and high concentrations of hard formations such as granite, sandstone, and dolomite. As a result, these "three-high formations" are increasingly encountered, leading to poor rock-breaking performance, slow drilling speeds, severe drill bit wear, long drilling cycles, and high drilling costs when using conventional turbine drilling and screw rotary drilling. This severely restricts the economical and effective development of deep and ultra-deep wells.

[0003] To address the challenge of breaking through hard rock formations in deep and ultra-deep wells, rotary drilling technology is commonly used. Rotary drilling involves adding a hydraulic impactor to the drill bit. The drill bit is subjected to pulsating impacts from the impactor, and the combined effects of drilling pressure, rotation, and pulsating impacts break the rock. However, current domestic and international percussion drilling tools generally suffer from problems such as short lifespan, high cost, and immature technology.

[0004] Multidimensional impact drilling tools can apply impact loads simultaneously in different directions and combine the advantages of both impact drilling and rotary drilling. They can effectively solve drilling problems such as difficulty in drilling hard formations and easy pressure build-up in directional drilling. They are conducive to improving drilling speed, reducing friction in directional drilling, achieving good speed-up effects, and have good application prospects.

[0005] Based on this, the present invention proposes a multidimensional impact turbine drill bit. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, namely the difficulty in breaking rock in hard formations in deep and ultra-deep wells, and the common issues of short lifespan, high cost, and immature technology in domestic and international impact drilling tools, this invention provides a multi-dimensional impact turbine drill bit, including a drive mechanism, a control mechanism, and an impact mechanism.

[0007] The drive mechanism includes a turbine rotor and a transmission spindle; the turbine rotor is driven to rotate by drilling fluid, the turbine rotor is rotatably connected to the transmission spindle, and the transmission spindle is connected to a control mechanism.

[0008] The control mechanism includes an upper disc valve and a lower disc valve. The lower disc valve is threadedly connected to the transmission spindle and is used to connect and disconnect the lower disc valve and the upper disc valve, and to generate pressure and transmit the pressure to the impact mechanism.

[0009] The impact mechanism includes a helical spline shaft, which generates axial displacement when receiving pressure, producing axial impact forces.

[0010] In some preferred embodiments, the impact mechanism further includes an upper connector, a liquid inlet, a pressure-changing chamber, a piston, a piston cylinder, a disc spring, a splined cylinder, a limiting step, a support sleeve, a central hole, a connecting cylinder, and a valve chamber;

[0011] The upper connector is threaded to the drill pipe. The center of the upper connector is coaxially provided with a fluid inlet hole along its axial direction. The fluid inlet hole is used to flow drilling fluid. The fluid inlet hole is connected to the pressure changing chamber. The pressure changing chamber is coaxially provided on the upper connector. The pressure changing chamber is used to change the axial force of the piston.

[0012] The piston is disposed inside the piston cylinder and moves thereal. One end of the piston cylinder is threadedly connected to the upper connector, and the other end of the piston cylinder is threadedly connected to one end of the splined cylinder. The other end of the splined cylinder is threadedly connected to one end of the connecting cylinder, and the other end of the connecting cylinder is connected to the control mechanism.

[0013] The spiral spline shaft is connected to the spline key. A central hole is coaxially opened at the center of the spiral spline shaft along its axial direction. The central hole is used for the flow of drilling fluid. The spiral spline shaft is threadedly connected to the piston. The piston abuts against one end of the disc spring. The other end of the disc spring abuts against the support sleeve. The support sleeve is installed on the spiral spline shaft and abuts against one side shoulder of the spiral spline shaft.

[0014] The shoulder on the other side of the spiral spline shaft can overlap with the limiting step to generate an impact force. The limiting step is coaxially opened inside the connecting cylinder and connected to the valve chamber of the connecting cylinder.

[0015] In some preferred embodiments, the control mechanism further includes a pressure boosting cylinder, a first flow channel, and a second flow channel;

[0016] The first flow channel is formed on the upper plate valve, and the second flow channel is formed on the lower plate valve. The axes of the first flow channel and the second flow channel coincide.

[0017] The upper disc valve is threadedly connected to the valve cavity, the lower disc valve is disposed inside the pressure boosting cylinder and moves along it, and the pressure boosting cylinder is threadedly connected to the connecting cylinder.

[0018] In some preferred embodiments, the drive mechanism further includes a turbine stator, a limiting sleeve, a radial bearing, and an adjusting sleeve;

[0019] The booster cylinder is keyed to the turbine stator, and the turbine stator is connected to the turbine rotor bearing;

[0020] The drive spindle is disposed inside the booster cylinder and connected to the drill bit. A limiting sleeve is installed on the outer circumference of the drive spindle. One end of the limiting sleeve abuts against the radial bearing, and the other end of the limiting sleeve abuts against the shoulder of the drive spindle. The radial bearing is mounted on the drive spindle. One end of the radial bearing abuts against the adjusting sleeve, and the other end of the radial bearing abuts against the turbine rotor. The adjusting sleeve is mounted on the drive spindle and abuts against the lower plate valve, serving as an axial limit for the radial bearing.

[0021] In some preferred embodiments, a liquid distribution hole is provided on the outer circumferential surface of the drill bit. The liquid distribution hole communicates with the liquid outlet hole and the liquid storage cavity. The liquid outlet hole is coaxially opened in the axial direction of the drill bit, and the liquid storage cavity is coaxially opened in the axial direction of the pressurizing cylinder.

[0022] In some preferred embodiments, multiple sets of the first flow channel and the second flow channel are evenly arranged along the axial direction of the upper plate valve and the lower plate valve.

[0023] In some preferred embodiments, an exhaust hole is provided on the outer circumferential surface of the connecting cylinder, and the exhaust hole is used to discharge the gas in the annulus.

[0024] In some preferred embodiments, a first sealing ring is installed on the lower disc valve, the first sealing ring being used to form a seal between the lower disc valve and the booster cylinder.

[0025] In some preferred embodiments, a second sealing ring is installed on the connecting cylinder, the second sealing ring being used to seal the gap between the connecting cylinder and the spiral spline shaft.

[0026] In some preferred embodiments, a third sealing ring is installed on the piston to seal the gap between the piston and the upper connector, preventing drilling fluid from seeping into the piston cylinder.

[0027] The beneficial effects of this invention are:

[0028] (1) This invention provides a multi-dimensional impact turbine drill bit. When the drilling fluid flows through the turbine assembly, it drives the transmission spindle to rotate, causing the flow channels of the upper and lower disc valves to periodically connect and disconnect. The drilling fluid pressure in the valve chamber and the pressure transformer chamber changes periodically, resulting in an axial impact at the disc valve connection. This causes the piston to move axially back and forth under the cooperation of the disc spring, thereby causing axial and circumferential impacts at the helical spline connection.

[0029] (2) This invention provides a sustainable and efficient simultaneous axial and circumferential impact to the drill string, with a large impact force, greatly improving drilling efficiency and reducing operating costs. The device can be operated simply by connecting the drill pipe and introducing drilling fluid; it has a simple structure, low cost, high reliability, and good operational stability. The device is connected to a turbine drill string assembly and can be used in various well types, including horizontal wells, extended reach wells, and directional wells, demonstrating good versatility. The turbine drill string has a high rotational speed and good high-temperature resistance. Attached Figure Description

[0030] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0031] Figure 1 This is a general assembly drawing of a multi-dimensional impact turbine drill bit according to the present invention;

[0032] Figure 2 This is an isometric view of a helical spline shaft in a multidimensional impact turbine drill bit according to the present invention;

[0033] Figure 3 This is an isometric view of the splined cylinder in a multi-dimensional impact turbine drill bit according to the present invention;

[0034] Figure 4 This is an isometric view of the upper valve in a multi-dimensional impact turbine drill bit according to the present invention;

[0035] Figure 5 This is an isometric view of the lower plate valve in a multi-dimensional impact turbine drill bit according to the present invention;

[0036] Figure 6 yes Figure 1 Middle AA section view;

[0037] Figure 7 yes Figure 1 Cross-sectional views of the turbine stator and turbine rotor;

[0038] Figure 8 yes Figure 1 Middle BB section view. Detailed Implementation

[0039] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] This invention provides a multi-dimensional impact turbine drill bit, comprising a drive mechanism, a control mechanism, and an impact mechanism;

[0042] The drive mechanism includes a turbine rotor 17 and a transmission spindle 12; the turbine rotor 17 is driven to rotate by drilling fluid, the turbine rotor 17 is rotatably connected to the transmission spindle 12, and the transmission spindle 12 is connected to a control mechanism.

[0043] The control mechanism includes an upper disc valve 9 and a lower disc valve 21. The lower disc valve 21 is threadedly connected to the transmission spindle 12 and is used to connect and disconnect the lower disc valve 21 and the upper disc valve 9, and to generate pressure and transmit the pressure to the impact mechanism.

[0044] The impact mechanism includes a helical spline shaft 5, which generates axial displacement when receiving pressure, thus generating axial impact forces.

[0045] The specific way in which the turbine rotor 17 and the transmission spindle 12 are rotatably connected is that the turbine rotor 17 and the transmission spindle 12 are keyed together.

[0046] Preferably, the impact mechanism further includes an upper connector 1, a liquid inlet 29, a pressure changing chamber 28, a piston 2, a piston cylinder 3, a disc spring 4, a splined cylinder 6, a limiting step 7, a support sleeve 25, a central hole 26, a connecting cylinder 8, and a valve chamber 22.

[0047] The upper connector 1 is threaded to the drill pipe. The center of the upper connector 1 is coaxially provided with a fluid inlet hole 29 along its axial direction. The fluid inlet hole 29 is used to flow drilling fluid. The fluid inlet hole 29 is connected to the pressure changing chamber 28. The pressure changing chamber 28 is coaxially provided on the upper connector 1. The pressure changing chamber 28 is used to change the axial force of the piston 2.

[0048] The piston 2 is disposed inside the piston cylinder 3 and moves thereal. One end of the piston cylinder 3 is threadedly connected to the upper connector 1, and the other end of the piston cylinder 3 is threadedly connected to one end of the splined cylinder 6. The other end of the splined cylinder 6 is threadedly connected to one end of the connecting cylinder 8, and the other end of the connecting cylinder 8 is connected to the control mechanism.

[0049] The spiral spline shaft 5 is keyed to the spline cylinder 6. The center of the spiral spline shaft 5 is coaxially provided with a center hole 26 along its axial direction. The center hole 26 is used for the flow of drilling fluid. The spiral spline shaft 5 is threaded to the piston 2. The piston 2 abuts against one end of the disc spring 4. The other end of the disc spring 4 abuts against the support sleeve 25. The support sleeve 25 is installed on the spiral spline shaft 5 and abuts against one side shoulder of the spiral spline shaft 5.

[0050] The shoulder on the other side of the spiral spline shaft 5 can overlap with the limiting step 7 to generate an impact force. The limiting step 7 is coaxially opened inside the connecting cylinder 8 and is connected to the valve chamber 22 of the connecting cylinder 8.

[0051] The disc spring 4 is used for compression and energy storage during the downward movement of the piston 2, and for power support during the upward movement.

[0052] The piston 2 abuts against the inner step of the upper connector 1.

[0053] Preferably, the control mechanism further includes a pressure booster cylinder 10, a first flow channel 32, and a second flow channel 33;

[0054] The first flow channel 32 is formed on the upper plate valve 9, and the second flow channel 33 is formed on the lower plate valve 21. The axes of the first flow channel 32 and the second flow channel 33 coincide.

[0055] The upper disc valve 9 is threadedly connected to the valve chamber 22, the lower disc valve 21 is disposed in the pressure boosting cylinder 10 and moves along it, and the pressure boosting cylinder 10 is threadedly connected to the connecting cylinder 8.

[0056] The upper disc valve 9 is connected to the connecting cylinder 8 via an external thread and has an internal six-hole 31 for easy screwing in. It has four flow channels 32 evenly distributed on its circumference. The lower disc valve 21 is located inside the pressure cylinder 10 and is connected to the transmission spindle 12 via a thread. The lower disc valve 21 has four second flow channels 33 evenly distributed on its circumference, corresponding to the first flow channels 32 on the upper disc valve 9. When the first flow channel 32 and the second flow channel 33 are disconnected, pressure buildup occurs, increasing the pressure of the valve chamber 22 and the drilling fluid above it. This causes a sudden increase in the axial force on the upper valve 9 and the piston 2, generating an axial impact force on the upper valve 9. The piston 2 drives the spiral spline shaft 5 to move downwards, compressing the disc spring 4 to store energy. The gas in the annular space at the lower end of the spiral spline shaft 5 is discharged through the exhaust port 24, generating axial and circumferential impact at the spiral spline mating point. The limiting step 7 axially limits the spiral spline shaft 5. When connected, the drilling fluid flows into the booster cylinder 10 through the first flow channel 32 and the second flow channel 33, reducing the pressure of the valve chamber 22 and the drilling fluid above it. This reduces the axial force on the upper valve 9 and the piston 2, and the disc spring 4 releases energy, causing the piston 2 to drive the spiral spline shaft 5 to move upwards.

[0057] The inner circumferential surface of the spline cylinder 6 is provided with a helical spline groove, which is connected to the helical spline shaft 5 through the helical spline groove.

[0058] Preferably, the drive mechanism further includes a turbine stator 11, a limiting sleeve 16, a radial bearing 18, and an adjusting sleeve 19;

[0059] The booster cylinder 10 is keyed to the turbine stator 11, and the turbine stator 11 is bearing-connected to the turbine rotor 17.

[0060] The transmission mandrel 12 is disposed inside the booster cylinder 10 and connected to the drill bit. A limiting sleeve 16 is installed on the outer circumferential surface of the transmission mandrel 12. One end of the limiting sleeve 16 abuts against the radial bearing 18, and the other end of the limiting sleeve 16 abuts against the shoulder of the transmission mandrel 12. The radial bearing 18 is mounted on the transmission mandrel 12. One end of the radial bearing 18 abuts against the adjusting sleeve 19, and the other end of the radial bearing 18 abuts against the turbine rotor 17. The adjusting sleeve 19 is mounted on the transmission mandrel 12 and abuts against the lower disc valve 21, for axial limiting of the radial bearing 18.

[0061] When the drilling fluid flows through the turbine rotor 17, the pressure increases. The turbine rotor 17 drives the transmission spindle 12 to rotate, thereby disconnecting and connecting the first flow channel 32 and the second flow channel 33, and thus realizing the periodic change of fluid pressure in the valve chamber 22 and the pressure changing chamber 28.

[0062] Preferably, a liquid distribution hole 14 is provided on the outer circumferential surface of the drill bit. The liquid distribution hole 14 is connected to the liquid outlet hole 15 and the liquid storage chamber 13. The liquid outlet hole 15 is coaxially opened in the axial direction of the drill bit, and the liquid storage chamber 13 is coaxially opened in the axial direction of the pressure boosting cylinder 10.

[0063] Preferably, multiple sets of the first flow channel 32 and the second flow channel 33 are evenly arranged along the axial direction of the upper plate valve 9 and the lower plate valve 21.

[0064] Preferably, an exhaust hole 24 is provided on the outer circumferential surface of the connecting cylinder 8, and the exhaust hole 24 is used to discharge the gas in the annulus.

[0065] The transmission mandrel 12 is located inside the booster cylinder 10, with its lower end connected to the drill bit. It transmits drilling pressure, torque, and impact force to the drill bit. It has a liquid distribution hole 14. The drilling fluid enters the booster cylinder 10 through the flow channel 33 from the lower plate valve, flows through the radial bearing 18 and the turbine assembly, enters the liquid storage chamber 13, and flows out through the liquid distribution hole 14 and the liquid outlet hole 15.

[0066] Preferably, a first sealing ring 20 is installed on the lower plate valve 21, and the first sealing ring 20 is used to form a seal between the lower plate valve 21 and the booster cylinder 10.

[0067] Preferably, a second sealing ring 23 is installed on the connecting cylinder 8, and the second sealing ring 23 is used to seal the gap between the connecting cylinder 8 and the spiral spline shaft 5.

[0068] Preferably, a third sealing ring 27 is installed on the piston 2. The third sealing ring 27 is used to seal the gap between the piston 2 and the upper connector 1 to prevent drilling fluid from seeping into the piston cylinder 3.

[0069] In this embodiment, the first sealing ring 20, the second sealing ring 23, and the third sealing ring 27 are all O-rings.

[0070] Among them, thread a is located on the outer cylindrical surface of the upper disc valve 9 and is used to connect the upper disc valve 9 with the connecting cylinder 8.

[0071] The thread b is located on the inner cylindrical surface of the lower disc valve 21 and is used to connect the lower disc valve 21 to the transmission spindle 12.

[0072] In this invention, the threaded connection can be a pipe thread.

[0073] Specifically, the working principle of this invention is as follows: The upper end of the upper connector 1 is connected to the drill pipe via a pipe thread, transmitting the torque and drilling pressure of the drill pipe. The drilling fluid flows into the device through the inlet hole 29, passes through the pressure transformer chamber 28, the center hole 26, the valve chamber 22, the first flow channel 32, the second flow channel 33, the turbine rotor 17, the storage chamber 13, the distribution hole 14, and the outlet hole 15, and then flows towards the drill bit and out of the device. In the initial state, when the drilling fluid flows through the turbine rotor 17, the liquid pressure in the booster cylinder 10 increases, driving the transmission spindle 12 to rotate, thereby driving the lower plate valve 21 to rotate, so as to achieve periodic misalignment and disconnection and connection between the flow channel of the upper plate valve 9 and the flow channel of the lower plate valve 21. When the valve is disconnected, the drilling fluid in the valve chamber 22 and the pressure transformer chamber 28 experiences pressure buildup, increasing the fluid pressure. This generates an axial impact force at the upper end of the upper valve 9, pushing the piston 2 and driving the spiral spline shaft 5 downwards. An additional vent 24 reduces air resistance during the downward movement. During the downward movement, axial and circumferential impacts occur at the engagement point of the spiral spline shaft 5, while simultaneously compressing the disc spring 4 to store energy. When the valve is connected, the pressure of the drilling fluid in the valve chamber 22 and its upper part decreases. The piston 2 and the spiral spline shaft 5 move upwards under the energy release action of the disc spring 4, resetting. The periodic connection and disconnection of the first flow channel 32 and the second flow channel 33 cause periodic changes in the drilling fluid pressure in the valve chamber 22 and the pressure transformer chamber 28, resulting in an axial impact at the valve connection point. This causes the piston 2 and the spiral spline shaft 5 to move axially back and forth under the engagement of the disc spring 4, further generating axial and circumferential impacts at the engagement point of the spiral spline shaft 5. This invention provides a sustainable and efficient axial and circumferential impact to the drill bit, greatly improving drilling efficiency and reducing operating costs.

[0074] The terms “first”, “second”, etc., are used to distinguish similar objects, not to describe or indicate a specific order or sequence.

[0075] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0076] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A multidimensional impact turbine drill bit, characterized in that, Includes drive mechanism, control mechanism and impact mechanism; The drive mechanism includes a turbine rotor (17) and a transmission spindle (12); the turbine rotor (17) is driven to rotate by drilling fluid, the turbine rotor (17) is rotatably connected to the transmission spindle (12), and the transmission spindle (12) is connected to the control mechanism; The control mechanism includes an upper plate valve (9) and a lower plate valve (21). The lower plate valve (21) is threadedly connected to the transmission spindle (12) and is used to connect and disconnect the lower plate valve (21) and the upper plate valve (9), and generate pressure to transmit the pressure to the impact mechanism. The impact mechanism includes a spiral spline shaft (5), which generates axial displacement when receiving pressure, generating axial impact force. The impact mechanism also includes an upper connector (1), a liquid inlet (29), a pressure changing chamber (28), a piston (2), a piston cylinder (3), a disc spring (4), a splined cylinder (6), a limiting step (7), a support sleeve (25), a central hole (26), a connecting cylinder (8), and a valve chamber (22). The upper connector (1) is threaded to the drill pipe. The center of the upper connector (1) is coaxially provided with a liquid inlet hole (29) along its axial direction. The liquid inlet hole (29) is used to flow drilling fluid. The liquid inlet hole (29) is connected to the pressure changing chamber (28). The pressure changing chamber (28) is coaxially provided on the upper connector (1). The pressure changing chamber (28) is used to change the axial force of the piston (2). The piston (2) is disposed in the piston cylinder (3) and moves thereal. One end of the piston cylinder (3) is threadedly connected to the upper connector (1), and the other end of the piston cylinder (3) is threadedly connected to one end of the spline cylinder (6). The other end of the spline cylinder (6) is threadedly connected to one end of the connecting cylinder (8), and the other end of the connecting cylinder (8) is connected to the control mechanism. The spiral spline shaft (5) is keyed to the spline cylinder (6). The center of the spiral spline shaft (5) is coaxially provided with a center hole (26) along its axial direction. The center hole (26) is used to flow drilling fluid. The spiral spline shaft (5) is threaded to the piston (2). The piston (2) abuts against one end of the disc spring (4). The other end of the disc spring (4) abuts against the support sleeve (25). The support sleeve (25) is installed on the spiral spline shaft (5) and abuts against one side shoulder of the spiral spline shaft (5). The shoulder on the other side of the spiral spline shaft (5) can overlap with the limiting step (7) to generate an impact force. The limiting step (7) is coaxially opened inside the connecting cylinder (8) and connected to the valve chamber (22) of the connecting cylinder (8).

2. The multidimensional impact turbine drill bit according to claim 1, characterized in that, The control mechanism also includes a pressure booster (10), a first flow channel (32), and a second flow channel (33); The first flow channel (32) is opened on the upper plate valve (9), and the second flow channel (33) is opened on the lower plate valve (21). The axes of the first flow channel (32) and the second flow channel (33) coincide. The upper valve (9) is threadedly connected to the valve chamber (22), the lower valve (21) is disposed in the pressure cylinder (10) and moves along it, and the pressure cylinder (10) is threadedly connected to the connecting cylinder (8).

3. A multidimensional impact turbine drill bit according to claim 2, characterized in that, The drive mechanism also includes a turbine stator (11), a limiting sleeve (16), a radial bearing (18), and an adjusting sleeve (19). The booster cylinder (10) is keyed to the turbine stator (11), and the turbine stator (11) is bearing-connected to the turbine rotor (17); The drive spindle (12) is disposed inside the booster cylinder (10) and connected to the drill bit. A limiting sleeve (16) is installed on the outer circumference of the drive spindle (12). One end of the limiting sleeve (16) abuts against the radial bearing (18), and the other end of the limiting sleeve (16) abuts against the shoulder of the drive spindle (12). The radial bearing (18) is mounted on the drive spindle (12). One end of the radial bearing (18) abuts against the adjusting sleeve (19), and the other end of the radial bearing (18) abuts against the turbine rotor (17). The adjusting sleeve (19) is mounted on the drive spindle (12) and abuts against the lower plate valve (21) for axial limiting of the radial bearing (18).

4. A multidimensional impact turbine drill bit according to claim 3, characterized in that, A liquid distribution hole (14) is provided on the outer circumferential surface of the drill bit. The liquid distribution hole (14) is connected to the liquid outlet hole (15) and the liquid storage chamber (13). The liquid outlet hole (15) is coaxially opened in the axial direction of the drill bit, and the liquid storage chamber (13) is coaxially opened in the axial direction of the pressure booster cylinder (10).

5. A multidimensional impact turbine drill bit according to claim 4, characterized in that, The first flow channel (32) and the second flow channel (33) are evenly arranged in multiple sets along the axial direction of the upper plate valve (9) and the lower plate valve (21).

6. A multidimensional impact turbine drill bit according to claim 5, characterized in that, The outer circumferential surface of the connecting cylinder (8) is provided with an exhaust hole (24), which is used to discharge gas in the annulus.

7. A multidimensional impact turbine drill bit according to claim 6, characterized in that, A first sealing ring (20) is installed on the lower plate valve (21), and the first sealing ring (20) is used to form a seal between the lower plate valve (21) and the booster cylinder (10).

8. A multidimensional impact turbine drill bit according to claim 7, characterized in that, A second sealing ring (23) is installed on the connecting cylinder (8), and the second sealing ring (23) is used to seal the gap between the connecting cylinder (8) and the spiral spline shaft (5).

9. A multidimensional impact turbine drill bit according to claim 8, characterized in that, A third sealing ring (27) is installed on the piston (2). The third sealing ring (27) is used to seal the gap between the piston (2) and the upper connector (1) to prevent drilling fluid from seeping into the piston cylinder (3).

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