A speed-up tool for oil drilling

Abstract

The present application belongs to the technical field of oil exploitation, and relates to a speed increasing tool for oil drilling. The tool comprises a shell, a rotating plate and an adapter. An upper part of the shell is provided with a flow cavity which is in communication with the outside. A lower part of the shell is symmetrically provided with a first arc-shaped cavity and a second arc-shaped cavity; the first arc-shaped cavity and the second arc-shaped cavity are in communication. The adapter is arranged in the shell in one-way rotation. The adapter is in sealing cooperation with the shell. The rotating plate is arranged in the shell in rotation, and the rotating plate is provided with an arc-shaped through hole and a notch at a lower end. Through the action of the rotating plate, the first arc-shaped cavity and the second arc-shaped cavity are alternately in communication with the flow cavity, so that the drilling fluid is alternately flowed into the first arc-shaped cavity and the second arc-shaped cavity, and then the first sliding block and the second sliding block alternately push the adapter to rotate relative to the shell, thereby improving the rotating speed of the drill bit. Moreover, the adapter cannot rotate clockwise relative to the shell, and the overall rotating speed of the drill bit cannot be reduced.

Description

Technical Field

[0001] This invention belongs to the field of petroleum extraction technology and relates to a speed-up tool for oil drilling. Background Technology

[0002] As oil resources dwindle, the focus of oil extraction has shifted to deep wells in hard formations, leading to increasingly complex geological conditions. In these complex formations, drill bits are more prone to damage, resulting in reduced drilling speeds and shorter bit lifespans. Therefore, improving oil drilling speeds is crucial for enhancing the efficiency of oil extraction.

[0003] A bidirectional resonant drilling speed-up tool is disclosed in document CN109469445A. This tool includes a tool housing, a drive shaft, and an axial cavity. Drilling fluid continuously enters the torsional cavity, and the increasing fluid volume drives the drill bit holder to rotate. However, after the drill bit rotates a certain angle, the drill bit holder needs to rotate in the opposite direction to reset before it can rotate again. This reverse rotation of the drill bit holder reduces the overall speed of the drill bit.

[0004] To address the aforementioned problems, this invention proposes a speed-up tool for oil drilling. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes a speed-up tool for oil drilling.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A speed-up tool for oil drilling, comprising:

[0008] The housing contains an adapter that is rotatably fitted within it. The housing and the adapter together form a first arc-shaped cavity and a second arc-shaped cavity. The first and second arc-shaped cavities are symmetrical about the adapter. The first and second arc-shaped cavities are connected.

[0009] The adapter is unidirectionally rotatable within the housing; the adapter is connected to a first slider via a first one-way bearing, the first slider slidingly engaging with a first arc-shaped cavity; the adapter is connected to a second slider via a second one-way bearing, the second slider slidingly engaging with a second arc-shaped cavity; the first and second one-way bearings drive the adapter to rotate in the same direction; at the same point in time, the first and second sliders move in opposite directions.

[0010] A rotating plate is rotatably and sealed within the housing. The rotating plate has an arc-shaped through hole and a notch at its lower end. The rotating plate allows the first and second arc-shaped cavities to alternately communicate with the flow cavity through the arc-shaped through hole, while the rotating plate allows the second and first arc-shaped cavities to alternately communicate with the outside through the notch.

[0011] The housing is equipped with a turbine mechanism that drives the rotating plate to rotate under the action of drilling fluid;

[0012] The upper end of the housing is equipped with an upper connector; the lower end of the adapter is equipped with a lower connector.

[0013] Preferably, the turbine mechanism includes a turbine structure and a rotating shaft;

[0014] The turbine structure is fixed on the rotating shaft, which is rotatably connected to the housing via bearings; the rotating plate is coaxially fixed at the lower end of the rotating shaft.

[0015] Preferably, the rotating plate includes a circular plate and a sliding plate;

[0016] The circular plate is fixed to the lower end of the rotating shaft, and the arc-shaped through hole is formed on the circular plate; the arc-shaped through hole is coaxial with the circular plate.

[0017] The sliding plate is fixedly mounted on the lower edge of the circular plate, and the notch is located on the sliding plate; the central angle of the arc-shaped through hole is equal to the central angle of the notch;

[0018] The central angle of the arc-shaped through hole is less than 180 degrees.

[0019] Preferably, the housing is provided with a sliding groove, which is in a sealing and rotatable engagement with the sliding plate;

[0020] A first side through hole is provided on the inner wall of the first arc-shaped cavity; the first side through hole is connected to the sliding groove;

[0021] A second side through hole is provided on the side wall of the second arc-shaped cavity; the second side through hole is connected to the sliding groove.

[0022] Preferably, the housing has a connecting channel; the first end of the connecting channel is connected to the first arc-shaped cavity, and the second end of the connecting channel is connected to the second arc-shaped cavity; the first end and the second end are symmetrical about the axis of the adapter.

[0023] Preferably, a first stop block is fixedly provided on both the upper and lower sides of one end of the first arc-shaped cavity on the housing; the first stop block is located at the end away from the first arc-shaped cavity and the connecting channel.

[0024] The first upper stop block is provided with a first upper through hole;

[0025] A second stop block is fixed above and below one end of the second arc-shaped cavity on the housing; the second stop block is located at the end away from the second arc-shaped cavity and the connecting channel.

[0026] The second stop block above has a second upper through hole.

[0027] Preferably, the housing has a liquid passage; both the first side through hole and the second side through hole are connected to the liquid passage.

[0028] Preferably, the housing has a first discharge hole communicating with the liquid passage; the lower circumference of the adapter has a second discharge hole communicating with the first discharge hole; the first discharge hole 11 and the second discharge hole 17 are arranged in a one-to-one correspondence; the lower axis of the adapter has a third discharge hole communicating with the second discharge hole.

[0029] Preferably, the housing and the rotating shaft form a flow cavity; the upper end of the upper connector is provided with a through hole; the upper end of the rotating shaft is provided with a flow groove, and the inner wall of the flow groove is provided with a plurality of strip holes, which communicate with the flow cavity.

[0030] Compared with the prior art, the present invention has the following beneficial effects: Through the action of the rotating plate, the first arc-shaped cavity and the second arc-shaped cavity alternately communicate with the flow cavity, allowing drilling fluid to alternately flow into the first arc-shaped cavity and the second arc-shaped cavity. This, in turn, causes the first slider and the second slider to alternately push the adapter to rotate relative to the housing, thereby increasing the drill bit speed. Furthermore, the adapter does not rotate bidirectionally relative to the housing, thus not reducing the overall drill bit speed. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0032] Figure 2 This is a partial cross-sectional view of the present invention;

[0033] Figure 3 This is a schematic diagram of the connection of the channel in this invention;

[0034] Figure 4 This is a schematic diagram of the connection relationship of the liquid passages in this invention;

[0035] Figure 5 This is a partial cross-sectional view of the present invention;

[0036] Figure 6 This is a schematic diagram of the external structure of the adapter in this invention;

[0037] Figure 7 This is a schematic diagram of the arc-shaped through hole in this invention;

[0038] Figure 8This is a schematic diagram of the transfer plate in this invention;

[0039] Figure 9 This is a schematic diagram showing the positions of the first and second blocks in the first state of the present invention;

[0040] Figure 10 This is a schematic diagram showing the positions of the first and second blocks in the second state of the present invention.

[0041] In the diagram: 1. Shell; 2. First arc-shaped cavity; 3. Second arc-shaped cavity; 4. Connecting channel; 5. First stop block; 6. Second upper through hole; 7. First upper through hole; 8. Second side through hole; 9. First side through hole; 10. Liquid passage; 11. First discharge hole; 12. Adapter; 13. First one-way bearing; 14. Second one-way bearing; 15. First slider; 16. Second slider; 17. Second discharge hole; 18. Third discharge hole; 19. Lower connector; 20. Rotating plate; 21. Arc-shaped through hole; 22. Notch; 23. Rotating shaft; 24. Turbine structure; 25. Strip hole; 26. Bearing; 27. Flow cavity; 28. Upper connector; 29. ​​Second stop block. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1-10 As shown, the technical solution adopted by the present invention is as follows: a speed-up tool for oil drilling, comprising a housing 1, a rotating plate 20, and an adapter 12.

[0044] An upper connector 28 is fixedly installed on the upper end of the housing 1. The upper connector 28 is used to install the tool onto the drive device. A through hole is provided in the middle of the upper connector 28.

[0045] The adapter 12 is located inside the housing 1. The housing 1 and the adapter 12 are sealed and rotated together, and the housing 1 and the adapter 12 enclose a first arc-shaped cavity 2 and a second arc-shaped cavity 3. The first arc-shaped cavity 2 and the second arc-shaped cavity 3 are symmetrically arranged. The housing 1 is provided with a connecting channel 4 that connects the first arc-shaped cavity 2 and the second arc-shaped cavity 3. The first end of the connecting channel 4 is connected to the first arc-shaped cavity 2, and the second end of the connecting channel 4 is connected to the second arc-shaped cavity 3. The first end and the second end are symmetrical about the axis of the adapter 12.

[0046] A first stop block 5 is fixedly provided on the upper and lower sides of one end of the first arc-shaped cavity 2 on the housing 1. A first upper through hole 7 is provided on the upper first stop block 5. The first stop block 5 is located inside the first arc-shaped cavity 2 and away from the end of the first arc-shaped cavity 2 that is connected to the connecting channel 4, that is, away from the first end of the connecting channel 4. A first side through hole 9 is provided on the side wall of the first arc-shaped cavity 2. The first side through hole 9 is located in the upper part of the first arc-shaped cavity 2.

[0047] A second stop block 29 is fixedly provided above and below one end of the second arc-shaped cavity 3 on the housing 1. A second upper through hole 6 is provided on the upper second stop block 29. The second stop block 29 is located inside the second arc-shaped cavity 3 and away from the end of the second arc-shaped cavity 3 that is connected to the connecting channel 4, that is, away from the second end of the connecting channel 4. A second side through hole 8 is provided on the side wall of the second arc-shaped cavity 3. The second side through hole 8 is located in the upper part of the second arc-shaped cavity 3. A liquid passage 10 is provided on the housing 1. The first side through hole 9 and the second side through hole 8 are both connected to the liquid passage 10.

[0048] The adapter 12 is unidirectionally rotatable within the housing 1. The adapter 12 is equipped with a first one-way bearing 13 and a second one-way bearing 14, which allow the adapter 12 to rotate in only one direction. Specifically, the adapter 12 has a first mounting groove and a second mounting groove along its circumference. The first one-way bearing 13 is installed in the first mounting groove, and its inner ring is fixedly connected to the adapter 12. A first slider 15 is fixedly connected to the outer ring of the first one-way bearing 13, and the first slider 15 slides within the first arc-shaped cavity 2. The second one-way bearing 14 is installed in the second mounting groove. The inner ring of the first one-way bearing 13 is fixedly connected to the adapter 12. The outer ring of the second one-way bearing 14 is fixedly connected to the second slider 16. The second slider 16 is slidably engaged with the second arc-shaped cavity 3. The first one-way bearing 13 and the second one-way bearing 14 drive the adapter 12 to rotate in the same direction. At the same time point, the first slider 15 and the second slider 16 have opposite motion trends. That is, when the first slider 15 rotates counterclockwise around the axis of the adapter 12, the second slider 16 rotates clockwise around the axis of the adapter 12. When the first slider 15 rotates clockwise around the axis of the adapter 12, the second slider 16 rotates counterclockwise around the axis of the adapter 12.

[0049] In this embodiment, with Figure 3As shown, the outer ring of the first one-way bearing 13 can rotate clockwise relative to the inner ring, and the outer ring of the second one-way bearing 14 can rotate clockwise relative to the inner ring. That is, when the first slider 15 rotates counterclockwise, it drives the adapter 12 to rotate counterclockwise via the first one-way bearing 13; when the second slider 16 rotates counterclockwise, it drives the adapter 12 to rotate counterclockwise via the second one-way bearing 14. Conversely, when the first slider 15 rotates clockwise, the outer ring of the first one-way bearing 13 rotates clockwise relative to the inner ring, meaning the first slider 15 rotates clockwise relative to the adapter 12, but cannot drive the adapter 12 to rotate. Similarly, when the second slider 16 rotates clockwise, it rotates clockwise relative to the adapter 12, but cannot drive the adapter 12 to rotate.

[0050] The rotating plate 20 is rotatably mounted inside the housing 1, and a sealed connection is established between the rotating plate 20 and the housing 1. The rotating plate 20 has an arc-shaped through hole 21 and a notch 22 at its lower end. The rotating plate 20, through the arc-shaped through hole 21, allows the first arc-shaped cavity 2 and the second arc-shaped cavity 3 to alternately communicate with the flow chamber 27. Simultaneously, the rotating plate 20, through the notch 22, allows the second arc-shaped cavity 3 and the first arc-shaped cavity 2 to alternately communicate with the liquid passage 10.

[0051] Specifically, the rotating plate 20 includes a circular plate and a sliding plate. An arc-shaped through hole 21 is formed on the circular plate and is coaxial with the circular plate. A sliding groove is formed on the housing 1. The sliding plate is sealed and rotates with the sliding groove. The first side through hole 9 and the second side through hole 8 are both connected to the sliding groove. The sliding plate is fixedly mounted on the lower edge of the circular plate. The notch 22 is located on the sliding plate. The central angle of the arc-shaped through hole 21 is less than 180 degrees, and the central angle of the arc-shaped through hole 21 is equal to the central angle of the notch 22.

[0052] As the rotating plate 20 rotates along the slide, when the arc-shaped through hole 21 on the rotating plate 20 connects with the first upper through hole 7, the first side through hole 9 is blocked by the sliding plate of the rotating plate 20, and the second upper through hole 6 is blocked by the rotating plate 20. The notch 22 of the rotating plate 20 is located at the second side through hole 8, so that the second side through hole 8 connects with the liquid passage 10. In this way, the flow cavity 27 connects with the first arc-shaped cavity 2, and the second arc-shaped cavity 3 connects with the liquid passage 10 through the second side through hole 8. When the arc-shaped through hole 21 on the rotating plate 20 connects with the second upper through hole 6, the second side through hole 8 is blocked by the sliding plate of the rotating plate 20, and at the same time, the first upper through hole 7 is blocked by the circular plate. The notch 22 of the rotating plate 20 cooperates with the first side through hole 9, so that the first side through hole 9 connects with the liquid passage 10. In this way, the flow cavity 27 connects with the second arc-shaped cavity 3, and at the same time, the first arc-shaped cavity 2 connects with the liquid passage 10 through the first side through hole 9.

[0053] The adapter 12 has a third discharge hole 18 at the lower axis, and multiple second discharge holes 17 are provided on the lower circumference of the adapter 12. The second discharge holes 17 are connected to the third discharge hole 18, and the second discharge hole 17 is located at the top of the third discharge hole 18. Multiple first discharge holes 11 are provided on the housing 1. The first discharge holes 11 and the second discharge holes 17 are arranged in a one-to-one correspondence. One end of the first discharge hole 11 is connected to the liquid passage 10, and the other end of the first discharge hole 11 is connected to the corresponding second discharge hole 17.

[0054] The housing 1 is equipped with a turbine mechanism that drives the rotating plate 20 to rotate under the action of drilling fluid.

[0055] The turbine mechanism includes a turbine structure 24 and a rotating shaft 23. The turbine structure 24 is fixed on the rotating shaft 23. The rotating shaft 23 is rotatably connected to the housing 1 through a bearing 26. The rotating plate 20 is fixed at the lower end of the rotating shaft 23.

[0056] The rotating shaft 23 and the housing 1 form a flow cavity 27. The turbine structure 24 is located inside the flow cavity 27. A flow groove is provided at the upper end of the rotating shaft 23. The flow groove is connected to the perforation. Multiple strip holes 25 are provided on the inner wall of the flow groove. The flow groove is connected to the flow cavity 27 through the strip holes 25. Drilling fluid is injected into the flow cavity 27 through the perforation.

[0057] Working principle:

[0058] like Figure 3 As shown, in the initial state, the first slider 15 is in contact with the first stop 5 in the first arc-shaped cavity 2, the second slider 16 is located at the end of the second arc-shaped cavity 3 away from the second stop 29, the first upper through hole 7 communicates with the end of the arc-shaped through hole 21, the second upper through hole 6 is blocked by the rotating plate 20, the first side through hole 9 is blocked by the rotating plate 20, the second side through hole 8 communicates with the end of the notch 22, the first arc-shaped cavity 2 and the connecting channel 4 are filled with extrusion fluid. Before use, connect the upper connector 28 to the external drive device, install the drill bit on the lower connector 19, and fix the lower connector 19 to the adapter 12. When in use, start the external drive device to drive the tool as a whole to rotate, that is, drive the drill bit to rotate, and the drill bit rotates counterclockwise. Figure 3 As shown, the housing 1 rotates counterclockwise, and the housing 1 pushes the first slider 15 to rotate counterclockwise through the first stop 5. The first slider 15 drives the adapter 12 to rotate counterclockwise.

[0059] High-pressure drilling fluid is injected into the housing 1 through the perforation on the upper connector 28. The drilling fluid enters the flow chamber 27 through the perforation, flow groove, and strip hole 25, and acts on the turbine structure 24, causing the turbine structure 24 to rotate counterclockwise. The turbine structure 24 drives the rotating shaft 23 to rotate counterclockwise, and the rotating shaft 23 drives the rotating plate 20 to rotate counterclockwise. The drilling fluid enters the lower part of the flow chamber 27 through the turbine structure 24, and then enters the first arc-shaped cavity 2 through the arc-shaped through hole 21 and the first upper through hole 7. At this time, the first side through hole 9 is blocked by the rotating plate 20, and the drilling fluid cannot enter the fluid passage 10 through the first side through hole 9. As the drilling fluid in the first arc-shaped cavity 2 gradually increases, the drilling fluid pushes the first slider 15 to slide away from the first stop block 5, that is, to rotate counterclockwise along the first arc-shaped cavity 2. Since the outer ring of the first one-way bearing 13 can only rotate clockwise relative to the inner ring and cannot rotate counterclockwise, the first slider 15 passes through the first one-way bearing 13. The bearing 13 drives the adapter 12 to rotate counterclockwise, and the adapter 12 drives the drill bit to rotate counterclockwise relative to the housing 1. Since the drill bit itself rotates with the housing 1 under the drive of the external drive device, the rotation speed of the drill bit is increased. Under the push of the first slider 15, the extrusion fluid in the first arc-shaped cavity 2 enters the second arc-shaped cavity 3 through the connecting channel 4, and pushes the second slider 16 to rotate clockwise in the second arc-shaped cavity 3. Since the outer ring of the second one-way bearing 14 can rotate clockwise relative to the inner ring, the second slider 16 rotates clockwise around the adapter 12 without affecting the movement of the adapter 12.

[0060] During the above process, the arc-shaped through hole 21 on the rotating plate 20 disengages from the first upper through hole 7, the rotating plate 20 blocks the first upper through hole 7, and the notch 22 no longer engages with the second side through hole 8, that is, the second side through hole 8 is blocked. At the same time, the second upper through hole 6 and the first side through hole 9 are still blocked. When the first slider 15 rotates counterclockwise, it pushes the second slider 16 to rotate clockwise, and at the same time causes the adapter 12 to rotate counterclockwise.

[0061] like Figure 10 As shown, when the first slider 15 moves to the end of the first arc-shaped cavity 2 away from the first stop 5, the second slider 16 moves to the end of the second arc-shaped cavity 3 with the second stop 29, and the second slider 16 abuts against the second stop 29. The first slider 15 and the second slider 16 are in the second state, and the adapter 12 is in a brief static state relative to the outer shell 1.

[0062] When the rotating plate 20 rotates 180 degrees relative to its initial state, the arc-shaped through hole 21 connects with the second upper through hole 6, making the flow cavity 27 connect with the second arc-shaped cavity 3. At the same time, the first side through hole 9 disengages from the obstruction of the rotating plate 20 and engages with the notch 22 of the rotating plate 20, allowing the first arc-shaped cavity 2 to connect with the fluid passage 10 through the first side through hole 9. The drilling fluid flowing through the turbine structure 24 flows into the second arc-shaped cavity 3 through the arc-shaped through hole 21 and the second upper through hole 6. As the amount of drilling fluid in the second arc-shaped cavity 3 gradually increases, the second side through hole 8 is blocked by the rotating plate 20, and the drilling fluid in the second arc-shaped cavity 3 cannot flow out through the second side through hole 8.

[0063] like Figure 3 As shown, the drilling fluid flowing into the second arc-shaped cavity 3 pushes the second slider 16 to rotate counterclockwise along the second arc-shaped cavity 3. The second slider 16 drives the adapter 12 to rotate through the second one-way bearing 14, causing the adapter 12 to rotate counterclockwise relative to the housing 1 while rotating counterclockwise with it, thereby increasing the speed of the adapter 12, which in turn increases the speed of the drill bit. When the second slider 16 rotates counterclockwise, it pushes the extruded fluid in the second arc-shaped cavity 3 into the first arc-shaped cavity 2 through the connecting channel 4, and pushes the first slider 15 to rotate clockwise. The first slider 15 drives the outer ring of the first one-way bearing 13 to rotate clockwise relative to the inner ring, without affecting the movement of the adapter 12. When the first slider 15 rotates clockwise, it pushes the drilling fluid in the first arc-shaped cavity 2 into the fluid passage 10 through the first side through hole 9, and then flows out sequentially through the first discharge hole 11, the second discharge hole 17, and the third discharge hole 18.

[0064] During the above process, the rotating plate 20 blocks the second upper through hole 6, and the arc-shaped through hole 21 is no longer connected to the second upper through hole 6. At the same time, the first side through hole 9 no longer engages with the notch 22 of the rotating plate 20. The rotating plate 20 blocks the first side through hole 9, and the first arc-shaped cavity 2 is no longer connected to the liquid passage 10. Meanwhile, the second side through hole 8 is still blocked by the rotating plate 20, that is, the second arc-shaped cavity 3 is no longer connected to the liquid passage 10, and the first upper through hole 7 is still blocked by the rotating plate 20.

[0065] like Figure 9 As shown, when the first slider 15 moves clockwise to contact the first stop 5, it is blocked by the first stop 5 and abuts against the first stop 5. At this time, the second slider 16 abuts against the end of the second arc cavity 3 away from the second stop 29. The first slider 15 and the second slider 16 are in the initial state.

[0066] Next, the first stop 5 will push the first slider 15 to rotate counterclockwise, thereby causing the adapter 12 to rotate counterclockwise, and the adapter 12 will be stationary relative to the housing 1.

[0067] When the rotating plate 20 rotates 360 degrees relative to its initial position, the rotating plate 20 returns to its initial position, and both the first slider 15 and the second slider 16 return to their initial positions. Then, the above process is repeated. The first slider 15 and the second slider 16 alternately push the adapter 12 to rotate relative to the housing 1, thereby increasing the rotational speed of the adapter 12 and thus increasing the rotational speed of the drill bit. The adapter 12 does not rotate clockwise relative to the housing 1, and therefore does not reduce the rotational speed of the drill bit.

[0068] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A speed-up tool for oil drilling, characterized in that, include: The housing (1) has an adapter (12) sealed and rotatably fitted inside it. The housing (1) and the adapter (12) enclose a first arc-shaped cavity (2) and a second arc-shaped cavity (3). The first arc-shaped cavity (2) and the second arc-shaped cavity (3) are symmetrical about the adapter (12). The first arc-shaped cavity (2) and the second arc-shaped cavity (3) are connected. The adapter (12) is unidirectionally rotatable inside the housing (1); the adapter (12) is connected to a first slider (15) via a first one-way bearing (13), and the first slider (15) is slidably engaged with a first arc-shaped cavity (2); the adapter (12) is connected to a second slider (16) via a second one-way bearing (14), and the second slider (16) is slidably engaged with a second arc-shaped cavity (3); the first one-way bearing (13) and the second one-way bearing (14) drive the adapter (12) to rotate in the same direction; at the same time point, the first slider (15) and the second slider (16) move in opposite directions; A rotating plate (20) is rotatably and sealed inside the housing (1). The rotating plate (20) has an arc-shaped through hole (21) and a notch (22) at the lower end. The rotating plate (20) allows the first arc-shaped cavity (2) and the second arc-shaped cavity (3) to alternately communicate with the flow cavity (27) through the arc-shaped through hole (21). At the same time, the rotating plate (20) allows the second arc-shaped cavity (3) and the first arc-shaped cavity (2) to alternately communicate with the outside through the notch (22). The housing (1) is equipped with a turbine mechanism that drives the rotating plate (20) to rotate under the action of drilling fluid; The upper end of the housing (1) is fitted with an upper connector (28); the lower end of the adapter (12) is fitted with a lower connector (19).

2. The speed-up tool for oil drilling according to claim 1, characterized in that: The turbine mechanism includes a turbine structure (24) and a rotating shaft (23). The turbine structure (24) is fixed on the rotating shaft (23), which is rotatably connected to the housing (1) through the bearing (26); the rotating plate (20) is coaxially fixed at the lower end of the rotating shaft (23).

3. A speed-up tool for oil drilling according to claim 2, characterized in that: The rotating plate (20) includes a circular plate and a sliding plate; The circular plate is fixed at the lower end of the rotating shaft (23), and the arc-shaped through hole (21) is opened on the circular plate; the arc-shaped through hole (21) is coaxial with the circular plate; The sliding plate is fixedly mounted on the lower edge of the circular plate, and the notch (22) is located on the sliding plate; the central angle of the arc-shaped through hole (21) is equal to the central angle of the notch (22); The central angle of the arc-shaped through hole (21) is less than 180 degrees.

4. A speed-up tool for oil drilling according to claim 3, characterized in that: The housing (1) is provided with a sliding groove, which is in a sealed rotational fit with the sliding plate; The inner wall of the first arc-shaped cavity (2) is provided with a first side through hole (9); the first side through hole (9) is connected to the sliding groove; A second side through hole (8) is provided on the side wall of the second arc-shaped cavity (3); the second side through hole (8) is connected to the slide groove.

5. A speed-up tool for oil drilling according to claim 1, characterized in that: The housing (1) has a connecting channel (4); the first end of the connecting channel (4) is connected to the first arc-shaped cavity (2), and the second end of the connecting channel (4) is connected to the second arc-shaped cavity (3); the first end and the second end are symmetrical about the axis of the adapter (12).

6. A speed-up tool for oil drilling according to claim 5, characterized in that: The housing (1) is fixed with a first stop block (5) above and below one end of the first arc-shaped cavity (2); the first stop block (5) is located at the end away from the first arc-shaped cavity (2) and the connecting channel (4); The first upper through hole (7) is provided on the first upper stop (5); A second stop (29) is fixed above and below one end of the second arc-shaped cavity (3) on the housing (1); the second stop (29) is located at the end away from the second arc-shaped cavity (3) and the connecting channel (4); The second upper stop (29) is provided with a second upper through hole (6).

7. A speed-up tool for oil drilling according to claim 4, characterized in that: The housing (1) has a liquid passage (10); the first side through hole (9) and the second side through hole (8) are both connected to the liquid passage (10).

8. A speed-up tool for oil drilling according to claim 7, characterized in that: The housing (1) has a first discharge hole (11) that communicates with the liquid passage (10); the adapter (12) has a second discharge hole (17) that communicates with the first discharge hole (11) on its lower circumference; the first discharge hole (11) and the second discharge hole (17) are arranged in a one-to-one correspondence; the adapter (12) has a third discharge hole (18) on its lower axis, and the third discharge hole (18) communicates with the second discharge hole (17).

9. A speed-up tool for oil drilling according to claim 2, characterized in that: The housing (1) and the rotating shaft (23) form a flow cavity (27); the upper end of the upper connector (28) is provided with a through hole; the upper end of the rotating shaft (23) is provided with a flow groove, and a plurality of strip holes (25) are provided on the inner wall of the flow groove, and the strip holes (25) are connected to the flow cavity (27).

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