Accelerating tool for petroleum drilling

Abstract

The invention 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. A flowing cavity is formed in the upper portion in the shell and communicated with the outside. A first arc-shaped cavity and a second arc-shaped cavity are symmetrically formed in the lower part in the shell; and the first arc-shaped cavity is communicated with the second arc-shaped cavity. The adapter is arranged in the shell in a one-way rotation mode. And the adapter is in sealing fit with the shell. The rotating plate is rotationally arranged in the shell, an arc-shaped through hole is formed in the rotating plate, and a notch is formed in the lower end of the rotating plate. Through the effect of the rotating plate, the first arc-shaped cavity and the second arc-shaped cavity alternately communicate with the circulation cavity, drilling fluid alternately flows into the first arc-shaped cavity and the second arc-shaped cavity, then the first sliding block and the second sliding block alternately push the adapter to rotate relative to the shell, and then the rotating speed of the drill bit is increased. And the adapter cannot rotate clockwise relative to the shell, so that the overall rotating speed of the drill bit cannot be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of oil extraction and relates to a speed-increasing tool used for oil drilling. Background Art

[0002] As oil resources gradually decrease, the focus of oil extraction has gradually shifted to deep well hard formations, and deep drilling encounters more and more complex formations. In complex formations, drill bits are more likely to be damaged, mechanical drilling speed is reduced, and the service life of drill bits is shortened. Therefore, increasing the oil drilling speed is of great significance to improving the efficiency of oil extraction.

[0003] The document with publication number CN109469445A discloses a bidirectional resonance drilling speed-up tool, which includes a tool housing, a drive shaft, and an axial cavity. The drilling fluid continuously enters the torsion cavity, and the liquid in the cavity continuously increases, which drives the drill bit seat to rotate. However, after the drill bit is driven to rotate a certain angle, the drill bit seat needs to be reversed and reset to enable the drill bit seat to rotate next time. In this way, the overall speed of the drill bit will be reduced during the reverse rotation of the drill bit seat.

[0004] In order to solve the above problems, the present invention proposes a speed-increasing tool for oil drilling. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention proposes a speed-increasing tool for oil drilling.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A speed-increasing tool for oil drilling, comprising: A housing, an adapter is sealably rotatably mounted in the housing, the housing and the adapter enclose a first arc cavity and a second arc cavity; the first arc cavity and the second arc cavity are symmetrical about the adapter; the first arc cavity and the second arc cavity are connected; The adapter is unidirectionally rotatably arranged in the housing; the adapter is connected to a first slider via a first one-way bearing, and the first slider is slidably matched with the first arc cavity; the adapter is connected to a second slider via a second one-way bearing, and the second slider is slidably matched with the second arc cavity; the first one-way bearing and the second one-way bearing drive the adapter to rotate in the same direction; at the same time point, the movement directions of the first slider and the second slider are opposite; A rotating plate, the rotating plate is sealed and rotatably arranged in the housing, an arc-shaped through hole is opened on the rotating plate, and a notch is provided at the lower end of the rotating plate; the rotating plate enables the first arc-shaped cavity and the second arc-shaped cavity to be alternately connected to the flow cavity through the arc-shaped through hole, and the rotating plate enables the second arc-shaped cavity and the first arc-shaped cavity to be alternately connected to the outside through the notch; The housing is provided with a turbine mechanism for driving the rotating plate to rotate under the action of drilling fluid; An upper joint is installed at the upper end of the shell; and a lower joint is installed at the lower end of the adapter.

[0007] Preferably, the turbine mechanism comprises a turbine structure and a rotating shaft; The turbine structure is fixed on the rotating shaft, and the rotating shaft is rotatably connected with the housing through a bearing; the rotating plate is coaxially fixed on the lower end of the rotating shaft.

[0008] Preferably, the rotating plate includes a circular plate and a sliding plate; The circular plate is fixedly arranged at the lower end of the rotating shaft, and the arc-shaped through hole is provided on the circular plate; the arc-shaped through hole is coaxial with the circular plate; The slide plate is fixedly arranged on the lower end of the edge of the circular plate, and the notch is located on the slide plate; the center angle of the arc-shaped through hole is equal to the center angle of the notch; The center angle of the arc-shaped through hole is less than 180 degrees.

[0009] Preferably, a slide groove is provided on the housing, and the slide groove is rotatably matched with the slide plate seal; 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 slide groove; A second side through hole is formed on the side wall of the second arc-shaped cavity; the second side through hole is communicated with the slide groove.

[0010] Preferably, a connecting channel is provided on the shell; a first end of the connecting channel is connected to the first arc-shaped cavity, and a 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.

[0011] Preferably, the housing is provided with first stoppers both above and below one end of the first arc-shaped cavity; the first stoppers are located at the end away from the first arc-shaped cavity and connected to the connecting channel; A first upper through hole is formed on the first upper stopper; A second stopper is fixedly provided above and below one end of the second arc-shaped cavity on the housing; the second stopper is located at the end away from the second arc-shaped cavity and connected to the connecting channel; The second upper stopper is provided with a second upper through hole.

[0012] Preferably, a liquid passage is provided in the shell; and the first side through hole and the second side through hole are both connected to the liquid passage.

[0013] Preferably, a first discharge hole connected to the liquid passage is provided on the shell; a second discharge hole connected to the first discharge hole is provided on the circumference of the lower part of the adapter; the first discharge hole 11 and the second discharge hole 17 are arranged in a one-to-one correspondence; a third discharge hole is provided on the axis of the lower part of the adapter, and the third discharge hole is connected to the second discharge hole.

[0014] Preferably, the shell and the rotating shaft enclose a flow cavity; a through hole is provided at the upper end of the upper joint; a flow groove is provided at the upper end of the rotating shaft, and a plurality of strip holes are provided on the inner wall of the flow groove, and the strip holes are connected to the flow cavity.

[0015] Compared with the prior art, the present invention has the following beneficial effects: through the action of the rotating plate, the first arc cavity and the second arc cavity are alternately connected with the circulation cavity, so that the drilling fluid alternately flows into the first arc cavity and the second arc cavity, and then the first slider and the second slider alternately push the adapter to rotate relative to the housing, thereby increasing the rotation speed of the drill bit. In addition, the adapter will not rotate in both directions relative to the housing, and will not reduce the overall rotation speed of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the present invention; Figure 2 is a partial cross-sectional view of the present invention; Figure 3 It is a connection schematic diagram of the connecting channel in the present invention; Figure 4 It is a schematic diagram of the connection relationship of the liquid passage in the present invention; Figure 5 is a partial cross-sectional view of the present invention; Figure 6 It is a schematic diagram of the external structure of the adapter in the present invention; Figure 7 It is a schematic diagram of the structure of the arc-shaped through hole in the present invention; Figure 8 It is a structural schematic diagram of the transfer plate of the present invention; Fig. 9 is a schematic diagram of the positions of the first stopper and the second stopper in the first state of the present invention; Fig.10 It is a schematic diagram of the positions of the first stopper and the second stopper in the second state of the present invention.

[0017] In the figure: 1, shell; 2, first arc cavity; 3, second arc cavity; 4, connecting channel; 5, first stopper; 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 joint; 20, rotating plate; 21, arc through hole; 22, notch; 23, rotating shaft; 24, turbine structure; 25, strip hole; 26, bearing; 27, flow cavity; 28, upper joint; 29, second stopper. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-Figure 10 As shown, the technical solution adopted by the present invention is as follows: a speed-increasing tool for oil drilling includes a housing 1, a rotating plate 20, and an adapter 12.

[0020] An upper joint 28 is fixedly mounted on the upper end of the housing 1 . The upper joint 28 is used to mount the tool on a driving device. A through hole is formed in the middle of the upper joint 28 .

[0021] The adapter 12 is located in the housing 1, and the housing 1 and the adapter 12 are sealed and rotated together, and the housing 1 and the adapter 12 enclose a first arc cavity 2 and a second arc cavity 3, and the first arc cavity 2 and the second arc cavity 3 are symmetrically arranged. A connecting channel 4 connecting the first arc cavity 2 and the second arc cavity 3 is provided in the housing 1, and a first end of the connecting channel 4 is connected to the first arc cavity 2, and a second end of the connecting channel 4 is connected to the second arc cavity 3. And the first end and the second end are symmetrical about the axis of the adapter 12.

[0022] A first stopper 5 is fixedly provided on the shell body 1 at the upper and lower parts of one end of the first arc-shaped cavity 2, and a first upper through hole 7 is provided on the first stopper 5 located at the upper part. The first stopper 5 is located in the first arc-shaped cavity 2 and away from the end where the first arc-shaped cavity 2 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, and the first side through hole 9 is located at the upper part of the first arc-shaped cavity 2.

[0023] A second stopper 29 is fixedly provided on the shell body 1 at the upper and lower parts of one end of the second arc-shaped cavity 3, and a second upper through hole 6 is provided on the second stopper 29 located at the upper part. The second stopper 29 is located in the second arc-shaped cavity 3 and away from the end where the second arc-shaped cavity 3 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 at the upper part of the second arc-shaped cavity 3. A liquid passage 10 is provided on the shell body 1, and the first side through hole 9 and the second side through hole 8 are both connected to the liquid passage 10.

[0024] The adapter 12 is unidirectionally rotatably arranged in the housing 1, and a first one-way bearing 13 and a second one-way bearing 14 are arranged on the adapter 12. The first one-way bearing 13 and the second one-way bearing 14 enable the adapter 12 to rotate in only one direction. Specifically, a first mounting groove and a second mounting groove are opened along the circumference of the adapter 12. The first one-way bearing 13 is installed in the first mounting groove. The inner ring of the first one-way bearing 13 is fixedly connected to the adapter 12. The outer ring of the first one-way bearing 13 is fixedly connected to a first slider 15. The first slider 15 is slidably matched with the first arc cavity 2. The second one-way bearing 14 is installed in the second mounting groove. The second one-way bearing 14 The inner ring 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 matched 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 movement 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, and 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.

[0025] In this embodiment, Figure 3 In the direction 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, the adapter 12 is driven to rotate counterclockwise through the first one-way bearing 13, and when the second slider 16 rotates counterclockwise, the adapter 12 is driven to rotate counterclockwise through the second one-way bearing 14, and when the first slider 15 rotates clockwise, the outer ring of the first one-way bearing 13 rotates clockwise relative to the inner ring, that is, when the first slider 15 rotates clockwise relative to the adapter 12, the first slider 15 cannot drive the adapter 12 to rotate, and when the second slider 16 rotates clockwise, the second slider 16 rotates clockwise relative to the adapter 12, and the second slider 16 cannot drive the adapter 12 to rotate.

[0026] The rotating plate 20 is rotatably disposed in the housing 1, and a seal is provided between the rotating plate 20 and the housing 1. The rotating plate 20 is provided with an arc-shaped through hole 21, and a notch 22 is provided at the lower end of the rotating plate 20. The rotating plate 20 enables the first arc-shaped cavity 2 and the second arc-shaped cavity 3 to be alternately connected to the flow cavity 27 through the arc-shaped through hole 21, and the rotating plate 20 enables the second arc-shaped cavity 3 and the first arc-shaped cavity 2 to be alternately connected to the liquid passage 10 through the notch 22. Specifically, the rotating plate 20 includes a circular plate and a slide plate, the arc-shaped through hole 21 is provided on the circular plate and is coaxial with the circular plate, a slide groove is provided on the housing 1, the slide plate is sealed and rotated with the slide groove, the first side through hole 9 and the second side through hole 8 are both connected to the slide groove, the slide plate is enclosed and fixed at the lower end of the edge of the circular plate, and the notch 22 is located on the slide plate. The center angle of the arc-shaped through hole 21 is less than 180 degrees, and the center angle of the arc-shaped through hole 21 is equal to the center angle of the notch 22.

[0027] In this way, the rotating plate 20 rotates along the slide groove, and when the arc-shaped through hole 21 on the rotating plate 20 is connected with the first upper through hole 7, the first side through hole 9 is blocked by the slide 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 is connected with the liquid passage 10, so that the flow chamber 27 is connected with the first arc chamber 2, and the second arc chamber 3 is connected with the liquid passage 10 through the second side through hole 8. When the arc-shaped through hole 21 on the rotating plate 20 is connected with the second upper through hole 6, the second side through hole 8 is blocked by the slide plate of the rotating plate 20, and the first upper through hole 7 is blocked by the circular plate, and the notch 22 of the rotating plate 20 cooperates with the first side through hole 9, so that the first side through hole 9 is connected with the liquid passage 10, so that the flow chamber 27 is connected with the second arc chamber 3, and the first arc chamber 2 is connected with the liquid passage 10 through the first side through hole 9.

[0028] A third discharge hole 18 is provided at the lower axis of the adapter 12, and a plurality of second discharge holes 17 are provided on the circumference of the lower part of the adapter 12. The second discharge holes 17 are connected to the third discharge holes 18, and the second discharge holes 17 are located at the top of the third discharge holes 18. A plurality of first discharge holes 11 are provided on the housing 1, and the first discharge holes 11 are arranged in a one-to-one correspondence with the second discharge holes 17. 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.

[0029] A turbine mechanism is arranged in the housing 1 to drive the rotating plate 20 to rotate under the action of the drilling fluid.

[0030] 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 on the lower end of the rotating shaft 23 .

[0031] The rotating shaft 23 and the shell 1 enclose a flow chamber 27, and the turbine structure 24 is in the flow chamber 27. A flow groove is provided at the upper end of the rotating shaft 23, and the flow groove is connected to the perforation. A plurality of strip holes 25 are provided on the inner wall of the flow groove, and the flow groove is connected to the flow chamber 27 through the strip holes 25, and the drilling fluid is injected into the flow chamber 27 through the perforation.

[0032] Working principle: like Figure 3 As shown, in the initial state, the first slider 15 contacts the first stopper 5 in the first arc-shaped cavity 2, the second slider 16 is located in the second arc-shaped cavity 3 at one end away from the second stopper 29, the first upper through hole 7 is communicated 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 is communicated with the end of the notch 22, the first arc-shaped cavity 2 and the connecting channel 4 are filled with extrusion liquid, before use, the upper joint 28 is connected to the external driving device, the drill bit is installed on the lower joint 19, the lower joint 19 is fixedly connected to the adapter 12, when in use, the external driving device is started to drive the tool to rotate as a whole, that is, the drill bit is driven to rotate, and the drill bit rotates counterclockwise, as shown in FIG. Figure 3 As shown, the housing 1 rotates counterclockwise, the housing 1 pushes the first slider 15 to rotate counterclockwise through the first stopper 5, and the first slider 15 drives the adapter 12 to rotate counterclockwise.

[0033] High-pressure drilling fluid is injected into the housing 1 through the perforations on the upper joint 28. The drilling fluid enters the flow chamber 27 through the perforations, flow grooves, and strip holes 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 chamber 2 through the arc 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 chamber 2 gradually increases, the drilling fluid pushes the first slider 15 to slide in the direction away from the first stopper 5, that is, rotates counterclockwise along the first arc chamber 2. Since the outer ring of the first one-way bearing 13 can only rotate clockwise relative to the inner ring, but not 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 driven by the external driving device, the rotation speed of the drill bit is increased. Under the push of the first slider 15, the extruded liquid in the first arc-shaped cavity 2 enters the second arc-shaped cavity 3 through the connecting channel 4, and drives 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.

[0034] During the above process, the arc-shaped through hole 21 on the rotating plate 20 is disengaged from the first upper through hole 7, the rotating plate 20 blocks the first upper through hole 7, and the notch 22 no longer cooperates with the second side through hole 8, that is, the second side through hole 8 is blocked, and at the same time, the second upper through hole 6 and the first side through hole 9 are still in a blocked state. At this time, when the first slider 15 rotates counterclockwise, it pushes the second slider 16 to rotate clockwise, and at the same time makes the adapter 12 rotate counterclockwise.

[0035] like Fig.10 As shown, when the first slider 15 moves to the end of the first arc-shaped cavity 2 away from the first stopper 5, the second slider 16 moves to the end of the second arc-shaped cavity 3 having the second stopper 29, and the second slider 16 abuts against the second stopper 29, the first slider 15 and the second slider 16 are in the second state, and the adapter 12 is in a short stationary state relative to the housing 1.

[0036] When the rotating plate 20 rotates 180 degrees relative to the initial state, the arcuate through hole 21 is connected with the second upper through hole 6, so that the flow chamber 27 is connected with the second arcuate chamber 3. At the same time, the first side through hole 9 is separated from the shielding of the rotating plate 20 and cooperates with the notch 22 of the rotating plate 20, so that the first arcuate chamber 2 is connected with the liquid passage 10 through the first side through hole 9, and the drilling fluid flowing through the turbine structure 24 flows into the second arcuate chamber 3 through the arcuate through hole 21 and the second upper through hole 6. As the drilling fluid in the second arcuate chamber 3 gradually increases, the second side through hole 8 is blocked by the rotating plate 20, and the drilling fluid in the second arcuate chamber 3 cannot flow out through the second side through hole 8.

[0037] 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, so that the adapter 12 rotates counterclockwise relative to the housing 1 on the basis of rotating counterclockwise with the housing 1, thereby increasing the speed of the adapter 12, that is, increasing the speed of the drill bit. When the second slider 16 rotates counterclockwise, it pushes the extruded liquid 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, which will not affect the movement of the adapter 12. When the first slider 15 rotates clockwise, the first slider 15 pushes the drilling fluid in the first arc-shaped cavity 2 into the liquid passage 10 through the first side through hole 9, and then flows out through the first discharge hole 11, the second discharge hole 17, and the third discharge hole 18 in sequence.

[0038] In the above process, the rotating plate 20 blocks the second upper through hole 6, the arcuate through hole 21 is no longer connected with the second upper through hole 6, and the first side through hole 9 is no longer matched with the notch 22 of the rotating plate 20, the rotating plate 20 blocks the first side through hole 9, and the first arcuate cavity 2 is not connected with the liquid passage 10. At the same time, the second side through hole 8 is still blocked by the rotating plate 20, that is, the second arcuate cavity 3 is not connected with the liquid passage 10, and the first upper through hole 7 is still in a state of being blocked by the rotating plate 20.

[0039] like Fig. 9 As shown, when the first slider 15 moves clockwise to contact the first stopper 5, it is blocked by the first stopper 5 and abuts against the first stopper 5. At this time, the second slider 16 abuts against the end of the second arc cavity 3 away from the second stopper 29, and the first slider 15 and the second slider 16 are in an initial state.

[0040] Next, the first stopper 5 will push the first sliding block 15 to rotate counterclockwise, thereby driving the adapter 12 to rotate counterclockwise, and the adapter 12 is in a stationary state relative to the housing 1 .

[0041] When the rotating plate 20 rotates 360 degrees relative to the initial position, the rotating plate 20 returns to the initial position, the first slider 15 and the second slider 16 return to the initial position, and 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 speed of the adapter 12 and the speed of the drill bit, and the adapter 12 will not rotate clockwise relative to the housing 1, and will not reduce the speed of the drill bit.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A speed-increasing tool for oil drilling, characterized in that: include: A shell (1), an adapter (12) is sealably rotatably mounted inside the shell (1), the shell (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 with respect to the adapter (12); the first arc-shaped cavity (2) and the second arc-shaped cavity (3) are in communication; The adapter (12) is unidirectionally rotatably arranged in 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 the 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 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 movement directions of the first slider (15) and the second slider (16) are opposite; A rotating plate (20), the rotating plate (20) being disposed in a sealed and rotatable manner in the housing (1), the rotating plate (20) being provided with an arc-shaped through hole (21), and a notch (22) being provided at the lower end of the rotating plate (20); the rotating plate (20) enables the first arc-shaped cavity (2) and the second arc-shaped cavity (3) to be alternately connected to the flow cavity (27) through the arc-shaped through hole (21), and the rotating plate (20) enables the second arc-shaped cavity (3) and the first arc-shaped cavity (2) to be alternately connected to the outside through the notch (22); The housing (1) is provided with a turbine mechanism for driving the rotating plate (20) to rotate under the action of drilling fluid; An upper joint (28) is installed at the upper end of the housing (1); and a lower joint (19) is installed at the lower end of the adapter (12).

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

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

4. A speed-increasing tool for oil drilling according to claim 3, characterized in that: The housing (1) is provided with a slide groove, and the slide groove is rotatably matched with the slide plate seal; A first side through hole (9) is provided on the inner wall of the first arc-shaped cavity (2); the first side through hole (9) is connected to the slide 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. The speed-increasing tool for oil drilling according to claim 1, characterized in that: The shell (1) is provided with a connecting channel (4); a first end of the connecting channel (4) is connected to the first arc-shaped cavity (2), and a 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-increasing tool for oil drilling according to claim 5, characterized in that: The housing (1) is provided with first stoppers (5) at the upper and lower parts of one end of the first arc-shaped cavity (2); the first stoppers (5) are located at the end away from the first arc-shaped cavity (2) and connected to the connecting passage (4); A first upper through hole (7) is formed on the first upper stopper (5); Second stoppers (29) are fixedly provided above and below one end of the second arc-shaped cavity (3) on the housing (1); the second stopper (29) is located at an end away from the second arc-shaped cavity (3) connected to the connecting channel (4); A second upper through hole (6) is formed on the second upper stopper (29).

7. The speed-increasing tool for oil drilling according to claim 4, characterized in that: A liquid passage (10) is provided in the shell (1); the first side through hole (9) and the second side through hole (8) are both in communication with the liquid passage (10).

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

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

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