CN111810050B - Drilling speed-up tool - Google Patents

Abstract

The invention provides a drilling acceleration tool, which comprises a shell, a driving assembly and an impact assembly, wherein the shell is provided with a flow passage, and the impact assembly comprises: a first connector connected to the housing, the first connector having an impingement cavity; the swinging piece is provided with a first swinging position and a second swinging position which are opposite to the first joint, is positioned in the impact cavity and divides the impact cavity into a first cavity and a second cavity; the flow guide piece is provided with a flow guide channel communicated with the circulation channel, the flow guide channel is selectively communicated with the first cavity or the second cavity, the driving assembly is in driving connection with the flow guide piece to drive the flow guide piece to rotate in the same direction relative to the shell, and the flow guide piece switches the communication state of the flow guide channel with the first cavity and the second cavity in the rotating process to drive the swinging piece to swing between the first swinging position and the second swinging position and collide with the first connector. Through the technical scheme that this application provided, can solve the problem that the drilling speed among the prior art is low.

Description

Drilling speed-up tool

Technical Field

The invention relates to the technical field of oil field exploration and development, in particular to a drilling acceleration tool.

Background

At present, a screw drill is generally used for drilling, and the screw drill can effectively control the track of a well hole. Specifically, the screw drill transmits the torque and the rotating speed required by the drill bit for rock breaking to the drill bit, and then drives the drill bit to break the rock.

However, in the prior art, the screw drill only depends on the rotation of the drill bit to break the rock, so that the screw drill has the problem of low drilling speed.

Disclosure of Invention

The invention provides a drilling speed-up tool, which aims to solve the problem of low drilling speed in the prior art.

The invention provides a drilling acceleration tool, which comprises a shell, a driving assembly and an impact assembly, wherein the shell is provided with a flow passage, and the impact assembly comprises: the first joint is connected with the shell and used for mounting a drill bit, and the first joint is provided with an impact cavity; the swinging piece is provided with a first swinging position and a second swinging position which are opposite to the first joint, the swinging piece collides with the first joint when swinging to the first swinging position and the second swinging position, and the swinging piece is positioned in the impact cavity and divides the impact cavity into a first cavity and a second cavity; the flow guide piece is provided with a flow guide channel communicated with the circulation channel, the flow guide channel is selectively communicated with the first cavity or the second cavity, the driving assembly is in driving connection with the flow guide piece to drive the flow guide piece to rotate relative to the shell in the same direction, and the flow guide piece switches the communication state of the flow guide channel with the first cavity and the second cavity in the rotating process to drive the swinging piece to swing between the first swinging position and the second swinging position.

Further, the first joint includes first section and second section, and first section is worn to establish in the casing and is connected with the casing, and the second section is used for being connected with the drill bit, and swing piece wears to establish in first section, has the impact groove on the lateral wall of first section, is provided with the swing convex part on swing piece's the outer wall, and the swing convex part is worn to establish in the impact groove, and the width size of swing convex part is less than the groove width in impact groove.

Further, the impact groove includes a third section and a fourth section arranged in a radial direction of the first joint, the third section is arranged near an outer wall of the first joint, a groove width of the third section is smaller than a groove width of the fourth section, and when the swinging member is located at the first swinging position or the second swinging position, a space is provided between a side wall of the swinging convex portion and a side wall of the fourth section.

Furthermore, a first circulation groove and a second circulation groove are formed in the side wall of the swinging piece and are respectively located on two sides of the swinging convex portion, the first circulation groove corresponds to the first cavity, the second circulation groove corresponds to the second cavity, the flow guide piece is rotatably arranged in the swinging piece in a penetrating mode, and an outlet of the flow guide channel is formed in the outer wall of the flow guide piece.

Furthermore, the driving assembly is in driving connection with the connecting end of the flow guide piece, the connecting end of the flow guide piece is of a closed structure, the flow guide channel extends along the axis direction of the flow guide piece, the inlet of the flow guide channel is formed in the outer wall of the flow guide piece, and the inlet and the outlet are arranged at intervals along the axis direction of the flow guide piece.

Further, the guide passage has two outlets symmetrically arranged in a radial direction of the guide member.

Further, drive assembly sets up in the casing, and drive assembly includes the stator and sets up the rotor in the stator, and the stator sets up with the casing is coaxial, and rotor and water conservancy diversion spare drive are connected, have the interval between rotor and the stator.

Further, the drilling speed-up tool also comprises a flow-through piece arranged on the upstream of the driving assembly, the flow-through piece is connected with the shell, one end of the flow-through piece is abutted to the rotor, the flow-through piece is provided with a flow hole, and the flow hole is communicated with the interval.

Furthermore, the overflowing part comprises a connecting section and a limiting section which are connected with each other, the connecting section is arranged in the shell in a penetrating mode and is in threaded connection with the shell, the limiting section is abutted to the rotor, the cross section of the limiting section is polygonal, the circulation hole penetrates through the connecting section and the limiting section, and the circulation hole is a fan-shaped hole.

Further, the casing includes first barrel and second barrel, and drive assembly sets up in first barrel, and the swinging member sets up in the second barrel, and first joint is connected with the one end of keeping away from first barrel of second barrel, and well drilling speed-raising instrument still includes: the second joint is connected with one end, far away from the second cylinder, of the first cylinder and is used for being connected with a drill string; the throttling element is arranged at the outlet end of the flow guide element; the bearing assembly is arranged between the outer wall of the flow guide piece and the inner wall of the shell; and the sealing ring is arranged between the flow guide piece and the throttling piece.

By applying the technical scheme of the invention, the drilling speed-up tool comprises a shell, a driving assembly and an impact assembly, wherein the impact assembly comprises a first joint, a swinging piece and a flow guide piece, and a flow guide channel of the flow guide piece is communicated with a flow channel of the shell. In the process that the driving assembly drives the flow guide piece to rotate relative to the shell in the same direction, the flow guide channel can be selectively communicated with the first cavity or the second cavity of the first joint, and then the communication state of the flow guide channel and the first cavity and the communication state of the flow guide channel and the second cavity are switched to drive the swinging piece to swing between the first swinging position and the second swinging position. All collide with first joint when swinging to first swing position and second swing position at the swing piece, because first joint is used for installing the drill bit, consequently first joint can provide the impact force for the drill bit under the collision of swing piece to the drill bit itself has moment of torsion and rotational speed, can promote the broken rock speed of drill bit under the effect of the supplementary broken rock of impact force, and then can promote the drilling speed of drilling tool.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a schematic diagram of a drilling acceleration tool provided in accordance with an embodiment of the present invention;

FIG. 2 shows a schematic structural view of the first joint of FIG. 1;

FIG. 3 shows a cross-sectional view of the first joint of FIG. 1;

FIG. 4 shows a left side view of the first joint of FIG. 1;

FIG. 5 shows a schematic structural view of the pendulum of FIG. 1;

FIG. 6 shows a top view of the pendulum of FIG. 1;

FIG. 7 shows a front view of the pendulum of FIG. 1;

FIG. 8 shows a cross-sectional view of the pendulum of FIG. 1;

FIG. 9 shows a cross-sectional view of the flow pass member of FIG. 1;

FIG. 10 illustrates a right side view of the flow pass member of FIG. 1;

FIG. 11 shows a left side view of the flow pass member of FIG. 1;

FIG. 12 illustrates a schematic view of a swing of a drilling acceleration tool provided in accordance with an embodiment of the present invention in a starting position;

FIG. 13 is a schematic diagram illustrating operation of a drilling acceleration tool provided in accordance with an embodiment of the present invention;

FIG. 14 is a schematic diagram illustrating operation of a drilling acceleration tool provided in accordance with an embodiment of the present invention;

FIG. 15 is a schematic diagram illustrating operation of a drilling acceleration tool provided in accordance with an embodiment of the present invention;

FIG. 16 is a schematic diagram illustrating operation of a drilling acceleration tool provided in accordance with an embodiment of the present invention;

fig. 17 shows a schematic view of the flow guide of fig. 1.

Wherein the figures include the following reference numerals:

10. a housing; 11. a flow-through channel; 12. a first cylinder; 13. a second cylinder; 20. a drive assembly; 21. a stator; 22. a rotor; 30. an impact assembly; 31. a first joint; 311. an impingement cavity; 3111. a first cavity; 3112. a second cavity; 312. a first stage; 3121. an impact groove; 31211. a third stage; 31212. a fourth stage; 313. a second stage; 32. a swinging member; 321. a swing protrusion; 322. a first circulation slot; 323. a second circulation groove; 33. a flow guide member; 331. a flow guide channel; 3311. an inlet; 3312. an outlet; 40. an overflowing part; 41. a flow-through hole; 42. a connecting section; 43. a limiting section; 50. a second joint; 60. a throttle member; 70. a bearing assembly; 80. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 17, the embodiment of the present invention provides a well acceleration tool, which includes a housing 10, a driving assembly 20 and an impact assembly 30, wherein the housing 10 has a flow passage 11, and the flow passage 11 is used for flowing drilling fluid. The percussion assembly 30 includes a first joint 31, an oscillating member 32 and a flow guide member 33, the first joint 31 is connected with the housing 10, and the first joint 31 is used for mounting a drill bit. In the present embodiment, the first joint 31 has an impact cavity 311, the oscillating member 32 is located in the impact cavity 311 and divides the impact cavity 311 into a first cavity 3111 and a second cavity 3112, the oscillating member 32 has a first oscillating position and a second oscillating position relative to the first joint 31, and the oscillating member 32 collides with the first joint 31 when oscillating to the first oscillating position and the second oscillating position. After the oscillating member 32 collides with the first joint 31, the oscillating member 32 may provide an impact force to the first joint 31, and the first joint 31 may provide an impact force to a drill bit disposed thereon, so that drilling efficiency can be improved by the impact force. The flow guide member 33 has a flow guide passage 331 communicating with the flow passage 11, and the flow guide passage 331 selectively communicates with the first cavity 3111 or the second cavity 3112. Specifically, the driving assembly 20 is in driving connection with the flow guide member 33, the driving assembly 20 drives the flow guide member 33 to rotate in the same direction relative to the housing 10, and the flow guide member 33 switches the communication state between the flow guide passage 331 and the first cavity 3111 and the second cavity 3112 during the rotation process to drive the oscillating member 32 to oscillate between the first oscillating position and the second oscillating position, so that the oscillating member 32 collides with the first joint 31 when oscillating to the first oscillating position and the second oscillating position.

With the drilling speed-up tool provided in this embodiment, during the process that the driving assembly 20 drives the diversion element 33 to rotate in the same direction relative to the housing 10, the diversion passage 331 selectively communicates with the first cavity 3111 or the second cavity 3112 of the first joint 31, and further switches the communication state between the diversion passage 331 and the first cavity 3111 and the second cavity 3112, so as to drive the oscillating element 32 to oscillate between the first oscillating position and the second oscillating position by the drilling fluid. The swinging piece 32 swings to the first swinging position and the second swinging position to collide with the first joint 31, and the first joint 31 is used for installing the drill bit, so that the first joint 31 can provide impact force for the drill bit under the collision of the swinging piece 32, the drill bit has torque and rotating speed, the rock breaking speed of the drill bit can be increased under the action of impact force assisted rock breaking, and the drilling speed of the drilling tool can be increased. By adopting the structure, the drilling speed can be increased by utilizing the drilling speed increasing tool, and the well track can be effectively controlled.

As shown in fig. 2 to 8, the first joint 31 includes a first section 312 and a second section 313, the first section 312 is disposed in the casing 10 and connected to the casing 10, and the second section 313 is used for connecting to a drill. Specifically, the oscillating piece 32 is swingably inserted into the first section 312, the side wall of the first section 312 has an impact groove 3121, the outer wall of the oscillating piece 32 is provided with an oscillating protrusion 321, the oscillating protrusion 321 is inserted into the impact groove 3121, the width of the oscillating protrusion 321 is smaller than the groove width of the impact groove 3121, and the oscillating protrusion 321 is swingably disposed in the impact groove 3121. When the swinging member 32 swings to the first swinging position and the second swinging position, the swinging protrusions 321 collide with the two side walls of the shock groove 3121, respectively, thereby providing a shock force to the first joint 31. Specifically, when the rocking protrusion 321 collides with one of the side walls of the shock groove 3121, there is a space between the rocking protrusion 321 and the other side wall of the shock groove 3121.

As shown in fig. 8, the cross-sectional shape of the oscillating protrusion 321 is a fan-shaped structure, and the side wall of the shock groove 3121 is inclined, so that when the oscillating protrusion 321 collides with the side wall of the shock groove 3121, the contact area between the oscillating protrusion 321 and the side wall of the shock groove 3121 can be increased, and the transfer of the shock force can be facilitated.

In the present embodiment, the shock groove 3121 is provided through the side wall of the first joint 31, and the swing protrusion 321 passes through the shock groove 3121 and abuts against the inner wall of the housing 10. In other embodiments, the shock groove 3121 may be provided as a sinking groove such that the swing protrusion 321 abuts against a groove bottom of the sinking groove.

As shown in fig. 5, the swing projection 321 extends in the axial direction of the swinging member 32, and both ends of the swing projection 321 are flush with both ends of the swinging member 32. Further, the contact boss is provided at the top of the swing protrusion 321, and the swing protrusion 321 is in contact with the inner wall of the housing 10 by the contact boss, so that the friction force of the swing protrusion 321 during the swing process can be reduced.

In this embodiment, the end of the first section 312 connected to the second section 313 is provided with an external thread and is screwed to the housing 10, and the end of the first section 312 remote from the second section 313 is provided with an impact groove 3121. Wherein, the second section 313 is provided with internal threads, and the drill bit is arranged in the second section 313 in a penetrating way and is connected with the second section 313 in a threaded way.

As shown in fig. 12, the shock groove 3121 includes a third segment 31211 and a fourth segment 31212 disposed in a radial direction of the first joint 31, the third segment 31211 is disposed adjacent to an outer wall of the first joint 31, a groove width of the third segment 31211 is smaller than a groove width of the fourth segment 31212, and a space is provided between a side wall of the swing protrusion 321 and a side wall of the fourth segment 31212 when the swing member 32 is located at the first swing position or the second swing position. With this interval, when the oscillating piece 32 is located at the first oscillating position or the second oscillating position, the volumes of the first cavity 3111 and the second cavity 3112 are not 0, so that the flow guide piece 33 can smoothly switch the communication state of the flow guide passage 331 with the first cavity 3111 and the second cavity 3112, and the drilling fluid can drive the oscillating protrusion 321 to move toward the other side through the interval to realize the oscillation of the oscillating protrusion 321. If the side wall of the swing protrusion 321 completely abuts against the side wall of the shock groove 3121 and there is no space between the side wall and the shock groove 3121 when the swinging member 32 is located at the first swinging position or the second swinging position, the communication state between the flow guide passage 331 and the first cavity 3111 and the second cavity 3112 cannot be switched by the flow guide member 33, and thus the swinging member 32 cannot be driven to swing between the first swinging position and the second swinging position by the drilling fluid.

As shown in fig. 6 and 8, a first flow through groove 322 and a second flow through groove 323 are disposed on a side wall of the oscillating member 32, the first flow through groove 322 and the second flow through groove 323 are respectively located at two sides of the oscillating protrusion 321, the first flow through groove 322 is disposed corresponding to the first cavity 3111, the second flow through groove 323 is disposed corresponding to the second cavity 3112, the baffle member 33 is rotatably disposed in the oscillating member 32, and an outlet 3312 of the baffle passage 331 is disposed on an outer wall of the baffle member 33. When the deflector 33 rotates relative to the oscillating member 32, the outlet 3312 of the deflector channel 331 is switched to communicate with the first communicating groove 322 and the second communicating groove 323, so that the drilling fluid in the deflector 33 can enter the first cavity 3111 through the outlet 3312 and the first communicating groove 322, or enter the second cavity 3112 through the outlet 3312 and the second communicating groove 323, and the oscillating member 32 oscillates under the driving of the drilling fluid. Wherein, the outlet 3312 of the flow guiding passage 331 is a kidney-shaped groove provided on the outer wall of the flow guiding member 33.

In this embodiment, the first flow channel 322 and the second flow channel 323 are both waist-shaped structures, so that erosion of drilling fluid to the device can be reduced, and the service life of the device can be prolonged. In this case, a plurality of first flow grooves 322 are formed at one side of the swing protrusion 321, and a plurality of second flow grooves 323 are formed at the other side of the swing protrusion 321, so that the flow capacity can be improved, and the swing member 32 can be quickly swung. Specifically, two first flow grooves 322 and two second flow grooves 323 are provided on both sides of the swing protrusion 321, respectively.

As shown in fig. 1 and 17, the driving assembly 20 is drivingly connected to the connecting end of the flow guide member 33, the connecting end of the flow guide member 33 is a closed structure, the flow guide passage 331 extends along the axial direction of the flow guide member 33, the inlet 3311 of the flow guide passage 331 is disposed on the outer wall of the flow guide member 33, and the inlet 3311 and the outlet 3312 are spaced apart along the axial direction of the flow guide member 33. The drilling fluid in the flow passage 11 of the housing 10 may enter the flow guide passage 331 through the inlet 3311 and then enter the first or second cavity 3111 or 3112 through the outlet 3312.

In this embodiment, the axis of the inlet 3311 is inclined, so that the drilling fluid can flow into the diversion passage 331 through the inlet 3311, erosion of the drilling fluid to the diversion member 33 is reduced, and the service life of the diversion member 33 is prolonged. Specifically, two inlets 3311 are provided at intervals on the outer wall of the guide member 33.

Among them, the outlet 3312 of the guide passage 331 may be provided in one or more. The use of multiple outlets 3312 increases the frequency of the reversing of the oscillating member 32, which in turn increases the frequency of the percussive impact to increase the drilling speed. Specifically, the number of outlets 3312 may be 2, 3, 4, 5, 6, etc., as long as smooth reversal of the oscillating member 32 is ensured.

As shown in fig. 12, in the present embodiment, the guide passage 331 has two outlets 3312 symmetrically arranged in the radial direction of the guide 33. During the rotation of the flow guide 33, the two outlets 3312 control the communication between the flow guide 331 and the first and second cavities 3111 and 3112. Also, the provision of two outlets 3312 increases the reversing frequency of the oscillating member 32, which in turn increases the percussion frequency to increase the drilling speed.

As shown in fig. 1, the driving assembly 20 is disposed in the housing 10, the driving assembly 20 includes a stator 21 and a rotor 22 disposed in the stator 21, the stator 21 is disposed coaxially with the housing 10, the rotor 22 is drivingly connected to the diversion member 33 by a screw connection, and a gap is formed between the rotor 22 and the stator 21. The space can be used for providing a circulation space for the drilling fluid. When drilling fluid is circulated in the space between the rotor 22 and the stator 21, the drilling fluid drives the rotor 22 and thus the deflector 33. Specifically, the drive assembly 20 is of a screw-driven construction. The stator 21 is made of rubber, and the stator 21 is arranged on an inner hole of the shell through a vulcanization process.

As shown in fig. 1, 9-11, the drilling acceleration tool further comprises a flow-passing member 40 disposed upstream of the driving assembly 20, the flow-passing member 40 is connected with the housing 10, and one end of the flow-passing member 40 abuts against the rotor 22 to limit the axial position of the rotor 22 in the housing 10. Wherein, the flow-through member 40 has a flow-through hole 41, the flow-through hole 41 is communicated with the space between the rotor 22 and the stator 21, and the drilling fluid can enter the space between the rotor 22 and the stator 21 through the flow-through hole 41. In this embodiment, two flow holes are symmetrically formed on the flow passage member 40, so that the rotation of the rotor 22 is smooth.

In the present embodiment, the flow passage 11 of the housing 10 includes the through hole of the housing 10, the flow hole 41 of the flow passage member 40, the space between the rotor 22 and the stator 21.

As shown in fig. 9, the flow passage member 40 includes a connecting section 42 and a limiting section 43 connected to each other, the connecting section 42 is inserted into the housing 10 and is in threaded connection with the housing 10, and the limiting section 43 abuts against the rotor 22 to limit the axial position of the rotor 22 in the housing 10. The cross section of the limiting section 43 is polygonal, so that the flow passage member 40 can be screwed on the housing 10 by using a tool such as a wrench. Wherein, circulation hole 41 runs through connecting section 42 and spacing section 43 setting, and circulation hole 41 is the fan-shaped hole, so can reduce the drilling fluid to overflowing piece and drive assembly's erosion to can improve device's life.

As shown in fig. 1, the housing 10 includes a first cylinder 12 and a second cylinder 13, the driving assembly 20 is disposed in the first cylinder 12, the swinging member 32 is disposed in the second cylinder 13, and the first joint 31 is screwed to an end of the second cylinder 13 far from the first cylinder 12.

As shown in fig. 1, the drilling acceleration tool further comprises a second connector 50, the second connector 50 is in threaded connection with an end of the first barrel 12 remote from the second barrel 13, and the second connector 50 is used for connection with a drill string.

As shown in fig. 1, the drilling acceleration tool further comprises a throttling element 60, the throttling element 60 is arranged at the outlet end of the flow guide element 33, and a part of the drilling fluid in the flow guide channel 331 of the flow guide element 33 flows out of the casing through the throttling element 60, so that a certain throttling pressure drop is generated, and under the action of the throttling pressure drop, the rest of the drilling fluid in the flow guide channel 331 drives the oscillating element 32 to strike the first connector 31. Specifically, the orifice member 60 is threadedly coupled to the flow guide member 33.

As shown in fig. 1, the drilling acceleration tool further comprises a bearing assembly 70, and the bearing assembly 70 is disposed between the outer wall of the flow guide 33 and the inner wall of the casing 10, so as to play a role of centering and supporting the rotation of the rotor.

As shown in fig. 1, the drilling acceleration tool further comprises a sealing ring 80, and the sealing ring 80 is arranged between the flow guide member 33 and the throttling member 60 to realize static sealing.

To facilitate understanding of the drilling acceleration tool provided in the present embodiment, the following is explained in conjunction with the working process:

(1) when drilling fluid enters the tool interior from the second connector 50, the drilling fluid drives the rotor 22 through the flow-through member 40 to produce high speed rotation. The function of overflowing the piece can guarantee the effective passing through of drilling fluid, can produce axial positioning to rotor 22 again, prevents the ascending of rotor 22 in the work in pit process.

(2) When the drilling fluid drives the rotor 22 to rotate at a high speed from the overflowing part 40, the rotor 22 drives the diversion part 33 to rotate at a high speed.

(3) The drilling fluid flows downwards through two symmetrical inlets on the flow guide element 33, one part of the drilling fluid directly enters the drill water hole through the throttling element 60 and generates a certain throttling pressure drop, and under the action of the throttling pressure drop, the other part of the drilling fluid enters an impact cavity between the swinging element 32 and the first joint 31 through two outlets designed on the flow guide element 33 and drives the swinging element 32 to generate reciprocating motion to impact the first joint 31.

(4) The swinging piece 32 performs reciprocating impact and directly acts on the first joint 31, the first joint 31 is directly connected with the drill bit, and the impact force is directly applied to the drill bit, so that the rock breaking efficiency of the drill bit is improved, and the drilling speed is increased.

As shown in fig. 12, the oscillating member 32 of the drilling acceleration tool is in the initial position, in which the outlet of the flow guide member 33 corresponds to the second cavity 3112, and the oscillating member 32 abuts against the left end surface of the impact slot of the first joint 31.

As shown in fig. 13 and 14, the flow guiding element 33 is driven by the rotor to rotate, and when the outlet of the flow guiding element 33 is aligned with the first cavity 3111, a certain pressure drop is generated due to the throttling action of the throttling element, so that the high-pressure fluid enters the first cavity 3111 between the oscillating element 32 and the first joint through the outlet on the flow guiding element 33 and the flow groove designed on the oscillating element 32. At this time, the oscillating member 32 is driven to rotate clockwise by the high-pressure fluid, and impacts the right end surface of the first joint 31, thereby completing the first impact.

As shown in fig. 15 and 16, when the outlet of the fluid guiding member 33 is rotated to align with the second cavity 3112, the high pressure fluid will enter the second cavity 3112 through the outlet of the fluid guiding member 33, and under the action of the high pressure fluid, the oscillating member 32 is driven to rotate counterclockwise and impact the left end surface of the first joint 31, thereby completing the second impact, which completes an impact cycle.

In the drilling process, the first connector 31 is continuously impacted in a reciprocating mode by the swinging piece 32, and the first connector 31 is connected with the drill bit, so that the vibration impact force is directly applied to the drill bit under the impact action of continuous high frequency, namely the impact force is directly applied to the blade of the drill bit, the rock breaking effect of the drill bit in the rock breaking process is enhanced, and the drilling speed is increased.

In order to further improve the well quality, a cushion block or a bent joint with a certain angle can be designed on the shell, and the effective control on the well track can be met in a sliding drilling mode. In particular, an angled block or elbow may be designed on the first cylinder.

The drilling acceleration tool provided by the embodiment has the following beneficial effects:

(1) because the screw driving part and the impact part are designed, the effective control of the well track can be ensured while the impact drilling speed is increased, the well quality is ensured, and the advantage of long service life is achieved;

(2) the plurality of components are connected in a threaded manner, so that the device has the advantages of simple structure and convenience in assembly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A well acceleration tool, characterized in that, the well acceleration tool comprises a housing (10), a drive assembly (20) and an impact assembly (30), the housing (10) having a flow through channel (11), the impact assembly (30) comprising:

a first adapter (31) connected to the housing (10), the first adapter (31) being for mounting a drill bit, the first adapter (31) having a percussion cavity (311);

a swinging piece (32) having a first swinging position and a second swinging position relative to the first joint (31), the swinging piece (32) colliding with the first joint (31) when swinging to the first swinging position and the second swinging position, the swinging piece (32) being located in the impact cavity (311) and dividing the impact cavity (311) into a first cavity (3111) and a second cavity (3112);

a flow guide member (33) having a flow guide passage (331) communicated with the flow passage (11), wherein the flow guide passage (331) is selectively communicated with the first cavity (3111) or the second cavity (3112), the driving assembly (20) is in driving connection with the flow guide member (33) to drive the flow guide member (33) to rotate in the same direction relative to the housing (10), and the flow guide member (33) switches the communication state of the flow guide passage (331) with the first cavity (3111) and the second cavity (3112) during the rotation process to drive the swinging member (32) to swing between the first swinging position and the second swinging position;

the first joint (31) comprises a first section (312) and a second section (313), the first section (312) is arranged in the shell (10) in a penetrating mode and is connected with the shell (10), the second section (313) is used for being connected with a drill bit, the swinging piece (32) is arranged in the first section (312) in a penetrating mode, an impact groove (3121) is formed in the side wall of the first section (312), a swinging convex part (321) is arranged on the outer wall of the swinging piece (32), the swinging convex part (321) is arranged in the impact groove (3121) in a penetrating mode, and the width of the swinging convex part (321) is smaller than the groove width of the impact groove (3121);

the shock groove (3121) includes a third section (31211) and a fourth section (31212) disposed in a radial direction of the first joint (31), the third section (31211) is disposed adjacent to an outer wall of the first joint (31), a groove width of the third section (31211) is smaller than a groove width of the fourth section (31212), and a space is provided between a side wall of the swing protrusion (321) and a side wall of the fourth section (31212) when the swing member (32) is located at the first swing position or the second swing position.

2. The drilling acceleration tool of claim 1, characterized in that, a first flow groove (322) and a second flow groove (323) are provided on the side wall of the oscillating member (32), the first flow groove (322) and the second flow groove (323) are respectively located on both sides of the oscillating protrusion (321), the first flow groove (322) is disposed corresponding to the first cavity (3111), the second flow groove (323) is disposed corresponding to the second cavity (3112), the deflector (33) is rotatably disposed through the oscillating member (32), and the outlet (3312) of the deflector channel (331) is disposed on the outer wall of the deflector (33).

3. The well drilling acceleration tool of claim 2, characterized in that, the driving assembly (20) is connected with the connecting end of the diversion member (33) in a driving manner, the connecting end of the diversion member (33) is a closed structure, the diversion passage (331) extends along the axial direction of the diversion member (33), the inlet (3311) of the diversion passage (331) is arranged on the outer wall of the diversion member (33), and the inlet (3311) and the outlet (3312) are arranged at intervals along the axial direction of the diversion member (33).

4. Drilling acceleration tool according to claim 2, characterized in, that the flow guiding channel (331) has two outlets (3312) symmetrically arranged in radial direction of the flow guiding member (33).

5. Drilling acceleration tool according to claim 1, characterized in, that the drive assembly (20) is arranged in the housing (10), the drive assembly (20) comprising a stator (21) and a rotor (22) arranged in the stator (21), the stator (21) being arranged coaxially with the housing (10), the rotor (22) being in driving connection with the flow guide (33), the rotor (22) being spaced from the stator (21).

6. The tool according to claim 5, further comprising a flow-through member (40) arranged upstream of the drive assembly (20), the flow-through member (40) being connected to the housing (10), one end of the flow-through member (40) abutting the rotor (22), the flow-through member (40) having a flow-through hole (41), the flow-through hole (41) being in communication with the gap.

7. The drilling speed-up tool according to claim 6, characterized in that the flow-through member (40) comprises a connecting section (42) and a limiting section (43) which are connected with each other, the connecting section (42) is arranged in the casing (10) in a penetrating way and is in threaded connection with the casing (10), the limiting section (43) is abutted against the rotor (22), the cross-sectional shape of the limiting section (43) is polygonal, the flow hole (41) is arranged through the connecting section (42) and the limiting section (43), and the flow hole (41) is a fan-shaped hole.

8. The well acceleration tool according to claim 1, characterized in that the housing (10) comprises a first cylinder (12) and a second cylinder (13), the driving assembly (20) being arranged within the first cylinder (12), the oscillating piece (32) being arranged within the second cylinder (13), the first joint (31) being connected with an end of the second cylinder (13) remote from the first cylinder (12), the well acceleration tool further comprising:

a second sub (50), the second sub (50) being connected to an end of the first barrel (12) remote from the second barrel (13), the second sub (50) being for connection to a drill string;

a throttle member (60), the throttle member (60) being disposed at an outlet end of the flow guide member (33);

a bearing assembly (70), the bearing assembly (70) being disposed between an outer wall of the flow guide (33) and an inner wall of the housing (10);

a sealing ring (80) arranged between the flow guide member (33) and the throttling member (60).

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