High frequency percussive drilling speed-up tool and method

Abstract

This invention belongs to the field of drilling engineering technology and discloses a high-frequency impact drilling speed-up tool and method. The high-frequency impact drilling speed-up tool includes an upper connector, an upper connecting cylinder, and a lower connecting cylinder connected sequentially from top to bottom. A turbine drive assembly and a vibration assembly are sequentially arranged inside the upper connecting cylinder. The turbine drive assembly can rotate under the driving action of high-pressure hydraulic oil. The vibration assembly includes a central rod, an upper vibration seat, and a lower vibration seat. The central rod is fixedly connected to the turbine drive assembly. The upper vibration seat is connected to the central rod, and its bottom end face is provided with multiple steel balls. The top end face of the lower vibration seat has a corrugated surface, and an elastic element is provided between the lower vibration seat and the lower connecting cylinder. Under the action of the elastic element, the corrugated surface on the lower vibration seat abuts against the steel balls. This invention converts the high-speed rotational motion of the turbine drive assembly into axial high-frequency vibration of the lower vibration seat, thereby providing high-frequency impact force to the drill bit, thus improving the drill bit's rock-breaking ability and increasing drilling speed.

Description

Technical Field

[0001] This invention relates to the field of drilling engineering technology, and in particular to a high-frequency impact drilling speed-up tool and method. Background Technology

[0002] In oil and gas exploration and development drilling engineering, the commonly used bottom hole power tool is the screw drill string, which has the characteristics of simple structure, stable power performance, and long working life. However, with the increasing number of deep and ultra-deep wells, the drilling difficulty of formations is constantly increasing. At the same time, exploration and development investment is decreasing, and drilling investment accounts for a huge proportion. The need to speed up and improve efficiency is urgent. However, ordinary drilling technology and screw drill strings can no longer meet the drilling efficiency requirements of formations with poor drillability, such as mixed soft and hard formations and hard formations. Moreover, there is a lack of effective means to speed up directional drilling. Summary of the Invention

[0003] The purpose of this invention is to provide a high-frequency impact drilling speed-up tool and method to solve the problems of insufficient rock-breaking ability of drill bits and insufficient drilling speed, thereby achieving drilling speed-up.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This invention provides a high-frequency impact drilling speed-up tool, comprising an upper connector, an upper connecting cylinder, and a lower connecting cylinder connected sequentially from top to bottom. A turbine drive assembly and a vibration assembly are sequentially disposed within the upper connecting cylinder. The turbine drive assembly is capable of rotating under the driving action of high-pressure hydraulic oil. The vibration assembly includes:

[0006] A center rod, which is fixedly connected to the output end of the turbine drive assembly;

[0007] The upper vibration seat is fitted with the central rod and fixedly connected to the central rod. The bottom end face of the upper vibration seat is provided with multiple grooves, and each groove contains a steel ball.

[0008] The lower vibrating seat is fitted with the central rod and has a wavy surface on its top end face. An elastic element is provided between the lower vibrating seat and the lower connecting cylinder. Under the action of the elastic element, the wavy surface on the lower vibrating seat abuts against the steel ball. The bottom end of the lower vibrating seat is connected to the drill bit.

[0009] In some embodiments, the number of crests and troughs of the wave surface is the same as the number of steel balls, and in the initial position, the steel balls are installed in a one-to-one correspondence with the troughs.

[0010] In some embodiments, the outer wall of the lower vibration seat is provided with a first stepped surface, the inner wall of the lower connecting cylinder is provided with a second stepped surface, and the elastic member is sleeved on the lower vibration seat with its two ends abutting against the first stepped surface and the second stepped surface, respectively.

[0011] In some embodiments, the elastic element comprises a plurality of stacked disc springs.

[0012] In some embodiments, the vibration assembly further includes a sealing seat disposed between the central rod and the upper connecting cylinder to seal the gap between them.

[0013] In some embodiments, the vibration assembly further includes an axial thrust bearing disposed between the central rod and the upper connecting cylinder, and the axial thrust bearing is fixedly connected to the central rod and located below the sealing seat.

[0014] In some embodiments, the side wall of the upper connecting cylinder is provided with an oil injection hole, the oil injection hole is connected to the vibration assembly, and the lower connecting cylinder below the elastic element is slidably sealed to the lower vibration seat.

[0015] In some embodiments, the turbo drive assembly includes:

[0016] The outer casing has its top end abutting against the end face of the upper connector, and its bottom end abutting against the third stepped surface on the inner wall of the upper connecting cylinder.

[0017] A support cylinder, wherein the support cylinder is disposed inside the outer casing;

[0018] A turbine, which is fixed inside the support cylinder by a support plate;

[0019] A flow plate is threaded to the bottom end of the housing to confine the support cylinder within the housing, and the flow plate is provided with flow holes;

[0020] The connector has a top end through which the flow plate passes and is connected to the turbine, and the bottom end of the connector is connected to the center rod through a flow divider seat, which has a flow divider hole.

[0021] In some embodiments, the axis of the diversion hole is inclined upward along the direction from the inner wall to the outer wall of the diversion seat.

[0022] In some embodiments, the turbine is provided in multiple ways, and the multiple turbines are sequentially threaded together. The connector is connected to the lowest turbine, and the multiple turbines are installed and fixed inside the support cylinder by multiple support plates.

[0023] This invention also provides a method for accelerating high-frequency impact drilling. According to the high-frequency impact drilling acceleration tool provided by this invention, the method for accelerating high-frequency impact drilling is as follows:

[0024] High-pressure hydraulic oil is introduced into the turbine drive assembly through the upper connector. The turbine drive assembly rotates at high speed under the action of the high-pressure hydraulic oil. The turbine drive assembly drives the upper vibrating seat to rotate through the central rod. The steel ball at the bottom of the upper vibrating seat rotates at high speed on the wave surface at the top of the lower vibrating seat. When the steel ball reaches the crest of the wave surface, the lower vibrating seat moves downward axially to the maximum distance. When it reaches the trough, the lower vibrating seat moves upward axially under the thrust of the elastic element. The above actions are repeated to form axial high-frequency vibration, which in turn drives the high-frequency vibration of the drill bit.

[0025] The beneficial effects of this invention are:

[0026] This invention provides a high-frequency impact drilling speed-up tool. The turbine drive assembly can rotate at high speed under the action of high-pressure hydraulic oil. In the vibration assembly, multiple steel balls are set at the bottom of the upper vibration seat and a wave surface is set at the top of the lower vibration seat. When the turbine drive assembly drives the central rod to rotate, the central rod drives the upper vibration seat to rotate, so that the steel balls rotate at high speed on the wave surface and push the lower vibration seat to perform axial high-frequency vibration, thereby driving the high-frequency vibration of the drill bit, providing high-frequency impact force to the drill bit, thereby improving the rock-breaking ability of the drill bit and increasing the drilling speed. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a high-frequency impact drilling speed-up tool provided in an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Upper connector; 2. Upper connecting cylinder; 3. Outer shell; 4. Support plate; 5. Turbine; 6. Support cylinder; 7. Flow plate; 8. Connector; 9. Flow divider seat; 10. Flow divider hole; 11. Sealing seat; 12. Axial thrust bearing; 13. Center rod; 14. Upper vibration seat; 15. Oil injection hole; 16. Steel ball; 17. Lower vibration seat; 18. Elastic element; 19. Lower connecting cylinder; 20. Lower connector. Detailed Implementation

[0030] The present invention 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 merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0034] This invention provides a high-frequency impact drilling speed-up tool, such as... Figure 1 As shown, the assembly includes an upper connector 1, an upper connecting cylinder 2, and a lower connecting cylinder 19 connected sequentially from top to bottom. The upper connecting cylinder 2 contains a turbine drive assembly and a vibration assembly. The turbine drive assembly can rotate under the driving force of high-pressure hydraulic oil. The vibration assembly includes a central rod 13, an upper vibration seat 14, and a lower vibration seat 17. The central rod 13 is fixedly connected to the output end of the turbine drive assembly. The upper vibration seat 14 is fitted with and fixedly connected to the central rod 13. The bottom end face of the upper vibration seat 14 has multiple grooves, each groove containing a steel ball 16. The lower vibration seat 17 is fitted with the central rod 13, and the top end face of the lower vibration seat 17 has a wavy surface. An elastic element 18 is provided between the lower vibration seat 17 and the lower connecting cylinder 19. Under the action of the elastic element 18, the wavy surface on the lower vibration seat 17 abuts against the steel ball 16. The bottom end of the lower vibration seat 17 is connected to a drill bit.

[0035] In a high-frequency impact drilling speed-up tool provided in this embodiment of the invention, the top end of the central rod 13 is threadedly connected to the turbine drive assembly to transmit rotational motion, and the central rod 13 is threadedly connected to the upper vibrating seat 14 for synchronous rotational motion. The lower vibrating seat 17 is sleeved on the outer side of the central rod 13 and connected to the sliding assembly of the central rod 13, and the lower vibrating seat 17 can slide axially along the outer wall of the central rod 13. High-pressure hydraulic oil, typically high-pressure drilling fluid, can be supplied to the turbine drive assembly through the upper connector 1. The turbine drive assembly rotates at high speed under the action of high-pressure hydraulic oil, providing driving force for the vibration assembly. In the vibration assembly, multiple steel balls 16 are arranged at the bottom of the upper vibration seat 14, and a wave-like surface is arranged at the top of the lower vibration seat 17. When the turbine drive assembly drives the central rod 13 to rotate, the central rod 13 drives the upper vibration seat 14 to rotate. This causes the steel balls 16 to rotate at high speed on the wave-like surface while simultaneously pushing the lower vibration seat 17 to perform axial high-frequency vibration. The steel balls 16 alternately contact the crests and troughs of the wave-like surface, and under the action of the elastic element 18, the rotation of the upper vibration seat 14 is converted into axial movement of the lower vibration seat 17. The bottom end of the lower vibration seat 17 is threadedly connected to a lower connector 20, which connects to the drill bit, thereby driving the high-frequency vibration of the drill bit and providing high-frequency impact force to the drill bit, thus improving the drill bit's rock-breaking ability and increasing drilling speed.

[0036] In some embodiments, the number of crests and troughs of the wave surface is the same as the number of steel balls 16, and in the initial position, the steel balls 16 are installed in a one-to-one correspondence with the troughs.

[0037] In a preferred embodiment, four semi-circular grooves are evenly arranged around the axis of the upper vibrating seat 14 on the bottom end face. Each semi-circular groove contains a steel ball 16. Correspondingly, the wave surface of the lower vibrating seat 17 has four crests and four troughs. Initially, the four steel balls 16 are located in the four troughs and are restrained by the elastic element 18. When the steel ball 16 rotates to the crest position, the lower vibrating seat 17 moves downward, compressing the elastic element 18. When the steel ball 16 rotates to the trough position, the lower vibrating seat 17 moves upward under the action of the elastic element 18, achieving one vibration. This cycle repeats, achieving high-frequency vibration of the lower vibrating seat 17, thereby providing the drill bit with a high-frequency impact force.

[0038] In some embodiments, the outer wall of the lower vibrating seat 17 is provided with a first stepped surface, the inner wall of the lower connecting cylinder 19 is provided with a second stepped surface, and the elastic member 18 is sleeved on the lower vibrating seat 17, with both ends of the elastic member 18 abutting against the first stepped surface and the second stepped surface, respectively.

[0039] In some embodiments, the elastic element 18 is a plurality of superimposed disc springs, each disc spring being sleeved on the outer wall of the lower vibrating seat 17, with both ends abutting between the first step surface and the second step surface. The elastic element 18 is used to provide the lower vibrating seat 17 with an upward force in the axial direction, so that the wave surface always elastically abuts against the steel ball 16.

[0040] In some embodiments, the vibration assembly further includes a sealing seat 11 disposed between the central rod 13 and the upper connecting cylinder 2 to seal the gap between them.

[0041] like Figure 1 In this embodiment, the sealing seat 11 is threaded to the inner wall of the upper connecting cylinder 2. The sealing seat 11 is sealed to the inner wall of the upper connecting cylinder 2 by the outer sealing ring. The center rod 13 is provided through the center hole of the sealing seat 11. The sealing seat 11 is sealed to the center rod 13 by the inner sealing ring, so that the high-pressure hydraulic oil will not enter the vibration assembly, thereby realizing the liquid isolation between the turbine drive assembly and the vibration assembly.

[0042] In some embodiments, the vibration assembly further includes an axial thrust bearing 12, which is disposed between the central rod 13 and the upper connecting cylinder 2, and is fixedly connected to the central rod 13 and located below the sealing seat 11.

[0043] For example Figure 1 The axial thrust bearing 12 and the center rod 13 are connected by an interference fit. The center rod 13 is threadedly connected to the upper vibration seat 14. When the center rod 13 drives the upper vibration seat 14 to rotate, the center rod 13 rotates within the axial thrust bearing 12, which helps to ensure the stability of the axis of the center rod 13.

[0044] In some embodiments, the side wall of the upper connecting cylinder 2 is provided with an oil injection hole 15, which is connected to the vibration assembly. The lower connecting cylinder 19 below the elastic element 18 is slidably sealed to the lower vibration seat 17.

[0045] like Figure 1An annular cavity is formed between the outer wall of the central rod 13 and the upper vibrating seat 14 and the inner wall of the upper connecting cylinder 2. An oil injection hole 15 connects to this annular cavity, allowing lubricating oil to be injected into the cavity to lubricate the vibration assembly. Preferably, two oil injection holes 15 are provided, evenly spaced on the side wall of the upper connecting cylinder 2. It is understood that the bottom end of the lower vibrating seat 17 passes through the lower connecting cylinder 19 and connects to the lower connector 20. To ensure the axial vibration direction stability of the lower vibrating seat 17 without generating excessive friction, two sliding contact parts are provided between the lower vibrating seat 17 and the lower connecting cylinder 19: the annular boss located on the second step surface below the elastic element 18 and the inner wall of the bottom end of the lower connecting cylinder 19. Sealing rings are provided at the annular boss and the inner wall of the bottom end of the lower connecting cylinder 19 for sliding sealing. It should be noted that the part of the lower vibrating seat 17 extending out of the lower connecting cylinder 19 after connecting to the lower connector 20 also has a certain buffer section, which is used to match the axial displacement generated by the wave surface, so as to ensure that the lower vibrating seat 17 can smoothly carry out high-frequency vibration without jamming or structural interference under the interaction of the steel ball 16 and the wave surface.

[0046] In some embodiments, the turbine drive assembly includes a housing 3, a support cylinder 6, a turbine 5, a flow plate 7, a connector 8, and a flow divider 9. The top end of the housing 3 abuts against the end face of the upper connector 1, and the bottom end of the housing 3 abuts against the third stepped surface on the inner wall of the upper connector 2. The support cylinder 6 is disposed inside the housing 3. The turbine 5 is fixed inside the support cylinder 6 by a support plate 4. The flow plate 7 is threadedly connected to the bottom end of the housing 3 to confine the support cylinder 6 inside the housing 3, and the flow plate 7 is provided with a flow hole. The top end of the connector 8 passes through the flow plate 7 and connects to the turbine 5, and the bottom end of the connector 8 is connected to the center rod 13 through the flow divider 9, and the flow divider 9 is provided with a flow divider hole 10.

[0047] In this embodiment, the bottom end of the upper connector 1 is provided with an external thread, the top end of the upper connecting cylinder 2 is provided with an internal thread, and the inner wall of the upper connecting cylinder 2 is provided with a third stepped surface. When the external thread of the upper connector 1 and the internal thread of the upper connecting cylinder 2 are threaded together for fixed connection, the outer shell 3 is just limited between the third stepped surface and the bottom end face of the upper connector 1 to achieve fixation.

[0048] The turbine 5 is fixed to the support plate 4, which is threadedly connected to the support cylinder 6. When the distributor plate is threadedly connected to the bottom of the outer casing 3, the distributor plate limits the support cylinder 6 within the outer casing 3. The support plate 4 has a through hole, and the flow plate 7 has a flow hole. High-pressure hydraulic oil impacts the turbine 5 as it passes through the through hole and flow hole from top to bottom, thus driving the turbine 5 to rotate at high speed. The connector 8 passes through the flow plate 7 and is connected at both ends to the bottommost turbine 5 and the distributor seat 9, respectively, by a threaded connection. When the turbine 5 rotates, it drives the central rod 13 to rotate synchronously through the connector 8 and the distributor seat 9. The distributor seat 9 is coaxially connected and fixed to the central rod 13, and its inner cavity is open. High-pressure hydraulic oil passing through the flow hole can enter the distributor seat 9 and the central rod 13 through the distributor hole 10 to achieve pressure relief.

[0049] Preferably, the flow plate 7 is provided with four flow holes, which are symmetrically and evenly arranged at 90° in the circumferential direction.

[0050] In this embodiment, the bottom end of the upper connecting cylinder 2 is provided with an internal thread, and the top end of the lower connecting cylinder 19 is provided with an external thread. The internal thread of the upper connecting cylinder 2 and the external thread of the lower connecting cylinder 19 are threaded together.

[0051] In some embodiments, the axis of the diversion hole 10 is inclined upward along the direction from the inner wall to the outer wall of the diversion seat 9.

[0052] For example, the flow divider 9 is provided with four flow divider holes 10. The four flow divider holes 10 are symmetrically arranged at 90° in the circumferential direction of the flow divider 9. The axis of each flow divider hole 10 forms a 45° angle with the axis of the flow divider 9, which facilitates the high-pressure hydraulic oil to enter the inner cavity of the flow divider 9 and the central rod 13 from top to bottom.

[0053] In some embodiments, multiple turbines 5 are provided, and the multiple turbines 5 are sequentially threaded together. A connector 8 is connected to the lowest turbine 5, and the multiple turbines 5 are installed and fixed in the support cylinder 6 by multiple support plates 4.

[0054] For example, such as Figure 1 The high-frequency impact drilling speed-up tool provided by this invention includes four turbines 5 and five support plates 4. The four turbines 5 are mounted on the five support plates 4, and each turbine 5 is connected to a support plate 4 at both ends to ensure axial consistency between the upper and lower ends of the turbine 5. The four turbines 5 are fixed together by threaded connections, forming a series structure. All five support plates 4 are threadedly connected to support cylinders 6, thereby improving the installation stability of the turbines 5.

[0055] This invention also provides a method for accelerating high-frequency impact drilling. According to the high-frequency impact drilling acceleration tool provided by this invention, the high-frequency impact drilling acceleration method is as follows:

[0056] High-pressure hydraulic oil is supplied to the turbine drive assembly through the upper connector 1. The turbine drive assembly rotates at high speed under the action of the high-pressure hydraulic oil. The turbine drive assembly drives the upper vibrating seat 14 to rotate through the central rod 13. The steel ball 16 at the bottom of the upper vibrating seat 14 rotates at high speed on the wave surface at the top of the lower vibrating seat 17. When the steel ball 16 reaches the crest of the wave surface, the lower vibrating seat 17 moves the greatest distance downward axially. When it reaches the trough, the lower vibrating seat 17 moves upward axially under the thrust of the elastic element 18. The above actions are repeated to form axial high-frequency vibration, which in turn drives the high-frequency vibration of the drill bit.

[0057] The high-frequency impact drilling speed-up method provided by this invention utilizes the high-speed rotation of the turbine 5 to drive the upper vibrating seat 14 to rotate. Through the cooperation between the steel balls 16 and the wave surface, the rotation of the upper vibrating seat 14 is converted into axial high-frequency vibration of the lower vibrating seat 17. This not only provides axial impact force to the drill bit but also protects the drill bit. It not only improves drilling speed and saves drilling cycles but also effectively reduces stick-slip and harmful vibrations, and has broad application prospects in the field of oil drilling.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A high-frequency impact drilling speed-up tool, characterized in that, It includes an upper connector (1), an upper connecting cylinder (2), and a lower connecting cylinder (19) connected sequentially from top to bottom. The upper connecting cylinder (2) contains a turbine drive assembly and a vibration assembly. The turbine drive assembly can rotate under the driving action of high-pressure hydraulic oil. The vibration assembly includes: A center rod (13) is fixedly connected to the output end of the turbine drive assembly; Upper vibration seat (14), the upper vibration seat (14) sleeves the central rod (13) and is fixedly connected to the central rod (13), the bottom end face of the upper vibration seat (14) is provided with multiple grooves, and each groove contains a steel ball (16); The lower vibrating seat (17) is fitted with the central rod (13) and the top end face of the lower vibrating seat (17) is provided with a wave surface. An elastic element (18) is provided between the lower vibrating seat (17) and the lower connecting cylinder (19). Under the action of the elastic element (18), the wave surface on the lower vibrating seat (17) abuts against the steel ball (16). The bottom end of the lower vibrating seat (17) is connected to the drill bit.

2. The high-frequency impact drilling speed-up tool according to claim 1, characterized in that, The number of crests and troughs of the wave surface is the same as the number of steel balls (16). In the initial position, the steel balls (16) are installed one-to-one with the troughs.

3. The high-frequency impact drilling speed-up tool according to claim 1, characterized in that, The outer wall of the lower vibration seat (17) is provided with a first stepped surface, the inner wall of the lower connecting cylinder (19) is provided with a second stepped surface, the elastic element (18) is sleeved on the lower vibration seat (17) and the two ends of the elastic element (18) respectively abut against the first stepped surface and the second stepped surface.

4. The high-frequency impact drilling speed-up tool according to claim 1, characterized in that, The elastic element (18) includes multiple stacked disc springs.

5. The high-frequency impact drilling speed-up tool according to claim 1, characterized in that, The vibration assembly also includes a sealing seat (11), which is disposed between the central rod (13) and the upper connecting cylinder (2) to seal the gap between them.

6. The high-frequency impact drilling speed-up tool according to claim 5, characterized in that, The vibration assembly also includes an axial thrust bearing (12), which is disposed between the central rod (13) and the upper connecting cylinder (2), and the axial thrust bearing (12) is fixedly connected to the central rod (13) and located below the sealing seat (11).

7. The high-frequency impact drilling speed-up tool according to claim 1, characterized in that, The upper connecting cylinder (2) has an oil injection hole (15) on its side wall. The oil injection hole (15) is connected to the vibration assembly. The lower connecting cylinder (19) below the elastic element (18) is slidably sealed to the lower vibration seat (17).

8. The high-frequency impact drilling speed-up tool according to claim 1, characterized in that, The turbo drive assembly includes: The outer shell (3) has its top end abutting against the end face of the upper connector (1) and its bottom end abutting against the third step surface on the inner wall of the upper connecting cylinder (2). A support cylinder (6) is disposed inside the outer shell (3); Turbine (5), the turbine (5) is fixed inside the support cylinder (6) by a support plate (4); A flow plate (7) is threaded to the bottom end of the outer shell (3) to confine the support cylinder (6) within the outer shell (3), and the flow plate (7) is provided with flow holes; Connector (8), the top end of the connector (8) passes through the flow plate (7) and is connected to the turbine (5), the bottom end of the connector (8) is connected to the center rod (13) through the flow divider seat (9), and the flow divider seat (9) is provided with a flow divider hole (10).

9. The high-frequency impact drilling speed-up tool according to claim 8, characterized in that, Along the direction from the inner wall to the outer wall of the diversion seat (9), the axis of the diversion hole (10) is inclined upward.

10. The high-frequency impact drilling speed-up tool according to claim 8, characterized in that, The turbine (5) is provided in multiple ways, and the multiple turbines (5) are sequentially threaded together. The connector (8) is connected to the lowest turbine (5). The multiple turbines (5) are installed and fixed in the support cylinder (6) by multiple support plates (4).

11. A method for accelerating high-frequency impact drilling, characterized in that, The high-frequency impact drilling speed-up tool according to any one of claims 1-10, wherein the high-frequency impact drilling speed-up method is as follows: High-pressure hydraulic oil is introduced into the turbine drive assembly through the upper connector (1). The turbine drive assembly rotates at high speed under the action of the high-pressure hydraulic oil. The turbine drive assembly drives the upper vibrating seat (14) to rotate through the central rod (13). The steel ball (16) at the bottom of the upper vibrating seat (14) rotates at high speed on the wave surface at the top of the lower vibrating seat (17). When the steel ball (16) reaches the crest of the wave surface, the lower vibrating seat (17) moves the maximum axial distance downward. When it reaches the trough, the lower vibrating seat (17) moves axially upward under the thrust of the elastic element (18). The above actions are repeated to form axial high-frequency vibration, which in turn drives the high-frequency vibration of the drill bit.

Images