CN219316882U

CN219316882U - Swing impact tool

Info

Publication number: CN219316882U
Application number: CN202320146598.XU
Authority: CN
Inventors: 童力峰
Original assignee: Shenzhen Atela Energy Technology Co ltd
Current assignee: Shenzhen Atela Energy Technology Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-07-07
Anticipated expiration: 2033-01-13

Abstract

The present utility model provides a swing impact tool comprising: an outer tube, a seat, a power hammer, and a power valve, the seat fixedly mounted in the outer tube, the power hammer pivotally mounted in the seat, the power valve pivotally mounted in the power hammer; the power valve is provided with a central hole serving as a high-pressure cavity; the outer surface of the occupying seat is provided with a first cavity used as a secondary pressure cavity, and the inner surface of the occupying seat is provided with a second cavity and a third cavity used as a low pressure cavity. The swing impact tool can form an included angle with the vertical direction on the resultant force of the tangential impact force generated by the drill bit and the bit pressure born by the drill bit, so that the drill bit has a lateral impact force on the rock stratum in the drilling process, thereby improving the drilling capability of the drill bit and being not easy to jam.

Description

Swing impact tool

Technical Field

The utility model relates to the field of petroleum drilling, in particular to a swing impact tool.

Background

In the prior drilling tool combination, no swing impact tool is installed, and the power applied to the drill bit in the drilling process is only the weight on bit and the torsion force of the drill rod, and the reaction force from the rock layer. Thus, the drilling speed is low, the rock stratum is not impacted and vibrated by the drill bit, the rock breaking capacity is weak, the production efficiency is low, and the drill sticking phenomenon is easy to occur.

Disclosure of Invention

The present utility model provides a swing impact tool to solve at least one of the above-mentioned technical problems.

In order to solve the above-described problems, as an aspect of the present utility model, there is provided a swing impact tool comprising: an outer tube, a seat, a power hammer, and a power valve, the seat fixedly mounted in the outer tube, the power hammer pivotally mounted in the seat, the power valve pivotally mounted in the power hammer;

the power valve is provided with a central hole serving as a high-pressure cavity;

the outer surface of the occupying seat is provided with a first cavity used as a secondary pressure cavity, and the inner surface of the occupying seat is provided with a second cavity and a third cavity used as a low pressure cavity;

the periphery of the power hammer is provided with a hammer block in a protruding mode, the hammer block is movably arranged in the third cavity and divides the third cavity into a power hammer left cavity and a power hammer right cavity, and the inner wall of the power hammer is provided with a stop block in a protruding mode;

a fourth cavity and a fifth cavity serving as a low-pressure cavity are formed on the outer surface of the power valve, and the stop block is movably arranged in the fourth cavity and divides the fourth cavity into a power valve left cavity and a power valve right cavity;

when the secondary pressure cavity is communicated with the power valve left cavity, the power valve right cavity is communicated with the second cavity so as to drive the power valve to rotate in a direction that the volume of the power valve right cavity is gradually reduced;

when the volume of the right cavity of the power valve is reduced to the minimum, the high-pressure cavity is communicated with the left cavity of the power hammer, and the right cavity of the power hammer is communicated with the fifth cavity so as to drive the power hammer to rotate in the direction of gradually reducing the volume of the right cavity of the power hammer;

when the volume of the right cavity of the power hammer is reduced to the minimum, the high-pressure cavity is communicated with the right cavity of the power hammer, and the left cavity of the power hammer is communicated with the fifth cavity so as to drive the power hammer to rotate in the direction that the volume of the left cavity of the power hammer is gradually reduced.

Preferably, the power hammer comprises two symmetrically arranged hammer blocks and two corresponding stop blocks, and the hammer blocks and the stop blocks are arranged in a crossing manner.

Preferably, four first cavities are formed on the outer surface of the occupying seat, two second cavities and two third cavities are formed on the inner surface of the occupying seat, and one first cavity is arranged between the adjacent second cavities and the third cavities.

Preferably, the power valve is provided with two fourth cavities, the circumference of the power valve is divided into two sections of circumferential side walls by the two fourth cavities, and each section of circumferential side wall is provided with two fifth cavities.

Preferably, the occupying seat is provided with an occupying seat through hole on the bottom surface of the first cavity;

the power hammer is provided with a left through hole of the hammer block on the left side of the hammer block, a right through hole of the hammer block on the right side of the hammer block, and a left through hole of the stop block on the left side of the stop block and a right through hole of the stop block on the right side of the stop block;

a first valve core through hole and a second valve core through hole are arranged between the two continuously arranged fifth cavities of the power valve;

the secondary pressure cavity is communicated with the power valve left cavity through the left through hole of the stop block, and the power valve right cavity is communicated with the second cavity through the right through hole of the stop block;

the high-pressure cavity is communicated with the power hammer left cavity through the first valve core through hole and the hammer block left through hole, and the power hammer right cavity is communicated with the fifth cavity through the hammer block right through hole;

the high-pressure cavity is communicated with the power hammer right cavity through the second valve core through hole and the hammer block right through hole, and the power hammer left cavity is communicated with the fifth cavity through the hammer block left through hole.

Preferably, a water hole bracket is further arranged in the occupation seat, and the water hole bracket is arranged on the outlet side of the central hole of the power valve.

Preferably, the seat is provided with a communication hole for communicating the first cavity with an outlet end of the seat downstream of the water hole bracket.

Preferably, the outlet ends of every two first cavities are mutually communicated so as to form two U-shaped groove structures on the outer surface of the occupying seat, and the communication holes are formed in the U-shaped groove structures.

Preferably, an upper cover is arranged at the inlet end of the occupation seat, and the power hammer and the power valve are arranged in a space surrounded by the occupation seat and the upper cover.

By adopting the technical scheme, the swing impact tool can form an included angle with the vertical direction on the resultant force of tangential impact force generated by the drill bit and the bit pressure born by the drill bit, so that the drill bit has a lateral impact force on the rock stratum in the drilling process, thereby improving the drilling capability of the drill bit and being not easy to jam.

Drawings

Fig. 1 schematically shows a front view of the present utility model;

FIG. 2 schematically shows a cross-sectional view of the present utility model;

FIG. 3 schematically illustrates an exploded view of the present utility model;

FIG. 4 schematically shows a cross-sectional view of the hammer block of FIG. 1 at A-A on the left;

FIG. 5 schematically shows a cross-sectional view of the hammer block of FIG. 1 at A-A on the right;

fig. 6 schematically shows a perspective view of a power valve;

FIG. 7 schematically illustrates a cross-sectional view of a power valve;

fig. 8 schematically shows a perspective view of the footprint;

FIG. 9 schematically illustrates a cross-sectional view of a footprint;

fig. 10 schematically illustrates a perspective view of the power hammer.

Reference numerals in the drawings: 1. an outer tube; 2. occupying a seat; 3. a power hammer; 4. a power valve; 5. a central bore; 6. a first cavity; 7. a second cavity; 8. a third cavity; 9. a hammer block; 10. a power hammer left cavity; 11. a power hammer right cavity; 12. a stop block; 13. a fourth cavity; 14. a fifth cavity; 15. a power valve left cavity; 16. a right cavity of the power valve; 17. occupying the seat through hole; 18. a left through hole of the hammer block; 19. a right through hole of the hammer block; 20. a left through hole of the stop block; 21. a right through hole of the stop block; 22. a first spool through hole; 23. a second spool through hole; 24. a water hole bracket; 25. a communication hole; 26. a U-shaped groove structure; 27. an upper cover; 28. a shaft cylinder; 29. and (5) briquetting.

Detailed Description

The following describes embodiments of the utility model in detail, but the utility model may be practiced in a variety of different ways, as defined and covered by the claims.

As one aspect of the present utility model, there is provided a swing impact tool comprising: an outer tube 1, a seat 2, a power hammer 3, and a power valve 4, the seat 2 being fixedly mounted in the outer tube 1, the power hammer 3 being pivotably mounted in the seat 2, the power valve 4 being pivotably mounted in the power hammer 3;

the power valve 4 is provided with a central hole 5 serving as a high-pressure cavity;

the outer surface of the occupation seat 2 is provided with a first cavity 6 used as a secondary pressure cavity, and the inner surface of the occupation seat 2 is provided with a second cavity 7 and a third cavity 8 used as low pressure cavities;

a hammer block 9 is formed on the periphery of the power hammer 3 in a protruding manner, the hammer block 9 is movably arranged in the third cavity 8 and divides the third cavity 8 into a power hammer left cavity 10 and a power hammer right cavity 11, and a stop block 12 is formed on the inner wall of the power hammer 3 in a protruding manner;

a fourth cavity 13 and a fifth cavity 14 serving as a low-pressure cavity are formed on the outer surface of the power valve 4, and the stop block 12 is movably arranged in the fourth cavity 13 and divides the fourth cavity 13 into a power valve left cavity 15 and a power valve right cavity 16;

when the secondary pressure cavity is communicated with the power valve left cavity 15, the power valve right cavity 16 is communicated with the second cavity 7 so as to drive the power valve 4 to rotate in a direction that the volume of the power valve right cavity 16 is gradually reduced;

when the volume of the power valve right cavity 16 is reduced to the minimum, the high-pressure cavity is communicated with the power hammer left cavity 10, and the power hammer right cavity 11 is communicated with the fifth cavity 14, so as to drive the power hammer 3 to rotate in the direction of gradually reducing the volume of the power hammer right cavity 11;

when the volume of the power hammer right cavity 11 is reduced to the minimum, the high-pressure cavity is communicated with the power hammer right cavity 11, and the power hammer left cavity 10 is communicated with the fifth cavity 14, so that the power hammer 3 is driven to rotate in the direction that the volume of the power hammer left cavity 10 is gradually reduced.

Preferably, the power hammer 3 comprises two symmetrically arranged hammer blocks 9 and two corresponding stoppers 12, and the hammer blocks 9 are arranged to cross the stoppers 12.

Preferably, four first cavities 6 are formed on the outer surface of the base 2, two second cavities 7 and two third cavities 8 are formed on the inner surface of the base 2, and one first cavity 6 is disposed between the second cavity 7 and the third cavity 8.

Preferably, the power valve 4 has two fourth cavities 13, the circumference of the power valve 4 is divided into two sections of circumferential side walls by the two fourth cavities 13, and two fifth cavities 14 are respectively arranged on each section of circumferential side walls.

Preferably, the occupying seat 2 is provided with an occupying seat through hole 17 on the bottom surface of the first cavity 6;

the power hammer 3 is provided with a left through hole 18 of a hammer block on the left side of the hammer block 9, a right through hole 19 of the hammer block on the right side, the power hammer 3 is provided with a left through hole 20 of a block on the left side of the block 12, and a right through hole 21 of the block on the right side;

the power valve 4 is provided with a first valve core through hole 22 and a second valve core through hole 23 between two continuously arranged fifth cavities 14;

the secondary pressure cavity is communicated with the power valve left cavity 15 through the block left through hole 20, and the power valve right cavity 16 is communicated with the second cavity 7 through the block right through hole 21;

the high-pressure cavity is communicated with the power hammer left cavity 10 through the first valve core through hole 22 and the hammer block left through hole 18, and the power hammer right cavity 11 is communicated with the fifth cavity 14 through the hammer block right through hole 19;

the high-pressure cavity is communicated with the power hammer right cavity 11 through the second valve core through hole 23 and the hammer block right through hole 19, and the power hammer left cavity 10 is communicated with the fifth cavity 14 through the hammer block left through hole 18.

Preferably, a water hole bracket 24 is further disposed in the seat 2, and the water hole bracket 24 is disposed at the outlet side of the central hole 5 of the power valve 4. The power source is provided by a slurry pump, the displacement of the slurry pump can be adjusted, and the flow of slurry can be controlled. The high-pressure slurry provided by the slurry pump flows into the power valve 4, when the slurry flows through the water hole bracket 24, a liquid jet phenomenon is generated, certain pressure consumption is generated, and under the condition that the flow area of the water hole bracket 24 is certain, the larger the displacement of the slurry pump is, the larger the resistance of the slurry passing through the water hole is, and the generated pressure consumption is higher.

Preferably, the seat 2 is provided with a communication hole 25 for communicating the first cavity 6 with the outlet end of the seat 2, downstream of the water hole bracket 24. Preferably, the outlet ends of every two first cavities 6 are mutually communicated so as to form two U-shaped groove structures 26 on the outer surface of the occupation seat 2, and the communication holes 25 are formed in the U-shaped groove structures 26. In this embodiment, 2U-shaped groove structures 26 are distributed on the outer circumferential surfaces of the occupation seat 2 and the upper cover 27, 8 long occupation seat through holes 17 are processed on the outer circumference of the occupation seat 2 in total and communicated with the U-shaped groove structures 26, and 4 occupation seat through holes 17 are distributed on each U-shaped groove structure 26 and symmetrically distributed. When the slurry is reversed, the slurry enters from the central hole 5 on the left side of the utility model and flows through the U-shaped groove structure 26, one part of the slurry flows into the U-shaped groove structure 26 from the occupied through hole 17 for reversing, the reversing pressure is P2, and the other part of the slurry is discharged from the communication hole 25 on the right side of the U-shaped groove structure 26 and is communicated with the outlet.

Preferably, an upper cover 27 is arranged at the inlet end of the occupation seat 2, and the power hammer 3 and the power valve 4 are arranged in a space surrounded by the occupation seat 2 and the upper cover 27. In this embodiment, the upper cover 27 is screwed to the seat 2, and a positioning spigot is formed in the end face of the connection. The power hammer 3 is arranged in a cavity formed by the upper cover 27 and the base 2. The outer circle of the upper end of the power hammer 3 is matched with the inner hole of the upper cover 27, and the outer circle of the lower end of the power hammer 3 is matched with the inner hole of the occupying seat 2. The power hammer 3 is installed between the seat accounting for 2 and the upper cover 27, the power valve 4 is installed to the hole of power hammer 3, and the excircle of power valve 4 cooperates with the hole of power hammer 3. The outer circle of the upper end of the power valve 4 is arranged in the inner hole of the upper cover 27, the outer circle of the lower end of the power valve 4 is arranged in the inner hole of the water hole bracket 24, and the outer circle of the water hole bracket 24 is arranged in the inner hole of the occupation seat 2. The power valve 4 is arranged between the upper cover 27 and the water hole bracket 24 and is positioned by means of the upper and lower outer circles. Preferably, a pressing block 29 is mounted on the left end surface of the power valve 4.

The working principle of the utility model is as follows.

Referring to fig. 2, the slurry flows from the left side to the present utility model and from the right side, wherein the slurry pressure entering the center hole of the power valve 4 is P1, and the slurry pressure flowing out of the present utility model is P0. The slurry flows through the present utility model to generate a pressure difference, thereby driving the power hammer 3 to swing to generate impact.

Referring to fig. 3, the utility model mainly comprises a power valve 4, a power hammer 3, a seat 2, a shaft cylinder 28, a shell 1 and other parts. The occupation seat 2 is in threaded connection with the shaft cylinder 28, an inner hole of the shaft cylinder 28 is connected with a drill bit, an outer circle of the shaft cylinder 28 is connected with the outer tube 1, rectangular tooth grooves are machined on the end face of the outer tube 1 connected with the shaft cylinder 28, and the rectangular tooth grooves are meshed with each other to transmit torque from the outer tube 1. The utility model is arranged at the near-bit end so as to directly transmit power to the bit and reduce power loss.

Referring to fig. 4, when the power hammer 3 is located near the left position shown in fig. 4, the pressure of the slurry is P1> P2> P0. Wherein P0 is communicated with the low pressure cavity, high pressure slurry P1 enters a cavity formed by a central hole 5 of the power valve, another part of high pressure slurry P1 enters a first cavity 6 formed between the occupation seat 2 and the outer tube 1 to form sub-pressure slurry P2, and enters a left cavity 15 of the power valve through a occupation seat through hole 17 and a left through hole 20 of the stop block, and the pressure of a right cavity 16 of the power valve is P0 and is communicated with the low pressure cavity. At this time, the pressure difference applied to the power valve 4 is P2-P0, and since P2> P0, the power valve 4 rotates counterclockwise until it comes into surface contact with the power hammer 3 at N3 under the pressure difference between P2 and P0.

Then, the high-pressure chamber P1 of the power valve 4 communicates with the power hammer left cavity 10 of the power hammer 3 through the first spool through hole 22 and the hammer block left through hole 18. Therefore, the mud pressure P1 enters the power hammer left cavity 10 of the power hammer 3 through the high-pressure area where the center hole of the power valve 4 is located, and at this time, the mud at the power hammer right cavity 11 of the power hammer is communicated with the low-pressure cavity (fifth cavity 14) of the power valve 4 through the hammer block right through hole 19 on the power hammer 3. The low pressure chamber pressure is P0, and therefore, the left side pressure of the hammer block 9 is P1, the right side pressure is P0, and the hammer block 9 (power hammer) is driven to rotate clockwise about its rotation center in the arrow direction shown in the figure by the high-low pressure difference between P1 and P0. Meanwhile, as the power hammer 3 is abutted with the power valve 4 at the position N3, the power hammer 3 rotates and drives the power valve 4 to rotate clockwise together until the hammer block 9 of the power hammer 3 directly strikes the right side wall of the third cavity 8 occupying the seat 2, so that one impact vibration is formed.

Referring to fig. 4, then, the power valve left cavity 15 of the power valve 3 is communicated with the first cavity 6 where the secondary pressure cavity P2 is located through the occupying seat through hole 17, and the power valve right cavity 16 is communicated with the low pressure cavity P0, so that the power valve 4 rotates clockwise to the position shown in fig. 5 under the action of the pressure difference of the power valve 4.

Referring to fig. 5, the power valve 4 contacts the power hammer 3 at the end face N4, at this time, the pressure P1 at the center hole 5 of the power valve 4 communicates with the power hammer right cavity 11 of the power hammer 3, the slurry in the power hammer left cavity 10 of the power hammer 3 flows into the low pressure cavity P0 of the power valve 4 through the hammer block left through hole 18, and under the action of the pressure difference, the power hammer 3 rotates counterclockwise in the direction shown by the arrow in fig. 5, so as to realize reversing until an impact force is applied to the left end of the third cavity 8 of the seat 2, thereby forming an impact shock.

The occupation seat 2 is connected with a drill bit (not shown) through the shaft barrel 2, so that impact vibration force can be transmitted to the drill bit, and the drill bit is subjected to reciprocating cyclic rotation swing, so that continuous impact vibration power is generated for the drill bit.

When the swing impact tool is applied to the test on the well, the swing impact tool is arranged at the power end of the drill bit, generally at the power end of the drill bit of a screw drilling tool or a rotary steering drilling tool, and provides impact vibration power for the drill bit. Under the condition that the parameters of the stratum and the drilling site of the drilling tool combination are unchanged, the swing impact tool is not added, the drilling speed is 2.5M/H, and after the swing impact tool is arranged on the drilling tool combination, the drilling speed is 4-5M/H, and the drilling speed is improved by 1.6-2 times. As can be seen from the laboratory data, the pump pressure in the test system was 0.7MPa and the displacement was 15M ³ In the case of/H, the test nozzle 16/32 is used, the pressure loss of the tool is 4.6Mpa, the tool can work normally, high-frequency impact vibration is output, the vibration frequency is 25-30HZ/S, and additional power and impact vibration can be provided for the drill bit.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A swing impact tool, comprising: an outer tube (1), a seat (2), a power hammer (3), and a power valve (4), the seat (2) being fixedly mounted in the outer tube (1), the power hammer (3) being pivotably mounted in the seat (2), the power valve (4) being pivotably mounted in the power hammer (3);

a central hole (5) serving as a high-pressure cavity is formed in the power valve (4);

the outer surface of the occupied seat (2) is provided with a first cavity (6) used as a secondary pressure cavity, and the inner surface of the occupied seat (2) is provided with a second cavity (7) and a third cavity (8) used as low pressure cavities;

a hammer block (9) is formed on the periphery of the power hammer (3) in a protruding manner, the hammer block (9) is movably arranged in the third cavity (8) and divides the third cavity (8) into a power hammer left cavity (10) and a power hammer right cavity (11), and a stop block (12) is formed on the inner wall of the power hammer (3) in a protruding manner;

a fourth cavity (13) and a fifth cavity (14) serving as a low-pressure cavity are formed on the outer surface of the power valve (4), and the stop block (12) is movably arranged in the fourth cavity (13) and divides the fourth cavity (13) into a power valve left cavity (15) and a power valve right cavity (16);

when the secondary pressure cavity is communicated with the power valve left cavity (15), the power valve right cavity (16) is communicated with the second cavity (7) so as to drive the power valve (4) to rotate in a direction that the volume of the power valve right cavity (16) is gradually reduced;

when the volume of the power valve right cavity (16) is reduced to the minimum, the high-pressure cavity is communicated with the power hammer left cavity (10), and the power hammer right cavity (11) is communicated with the fifth cavity (14) so as to drive the power hammer (3) to rotate in the direction of gradually reducing the volume of the power hammer right cavity (11);

when the volume of the power hammer right cavity (11) is reduced to the minimum, the high-pressure cavity is communicated with the power hammer right cavity (11), and the power hammer left cavity (10) is communicated with the fifth cavity (14) so as to drive the power hammer (3) to rotate in the direction that the volume of the power hammer left cavity (10) is gradually reduced.

2. A swinging impact tool according to claim 1, characterized in that the power hammer (3) comprises two symmetrically arranged hammer blocks (9) and two correspondingly arranged stops (12), the hammer blocks (9) being arranged crosswise to the stops (12).

3. A swinging impact tool according to claim 2, characterized in that the outer surface of the foot rest (2) is formed with four first cavities (6), the inner surface of the foot rest (2) is formed with two symmetrically arranged second cavities (7) and two symmetrically arranged third cavities (8), and one first cavity (6) is arranged between the adjacent second cavity (7) and third cavity (8).

4. A swing impact tool according to claim 3, characterized in that the power valve (4) has two said fourth cavities (13), the circumference of the power valve (4) being divided by two said fourth cavities (13) into two circumferential side walls, two said fifth cavities (14) being provided on each of said circumferential side walls.

5. The swing impact tool according to claim 4, wherein,

the occupying seat (2) is provided with an occupying seat through hole (17) on the bottom surface of the first cavity (6);

the power hammer (3) is provided with a left hammer block through hole (18) on the left side of the hammer block (9), a right hammer block through hole (19) on the right side, the power hammer (3) is provided with a left stopper through hole (20) on the left side of the stopper (12), and a right stopper through hole (21) on the right side;

the power valve (4) is provided with a first valve core through hole (22) and a second valve core through hole (23) between two continuously arranged fifth cavities (14);

the secondary pressure cavity is communicated with the power valve left cavity (15) through the stop block left through hole (20), and the power valve right cavity (16) is communicated with the second cavity (7) through the stop block right through hole (21);

the high-pressure cavity is communicated with the power hammer left cavity (10) through the first valve core through hole (22) and the hammer block left through hole (18), and the power hammer right cavity (11) is communicated with the fifth cavity (14) through the hammer block right through hole (19);

the high-pressure cavity is communicated with the power hammer right cavity (11) through the second valve core through hole (23) and the hammer block right through hole (19), and the power hammer left cavity (10) is communicated with the fifth cavity (14) through the hammer block left through hole (18).

6. A swinging impact tool according to claim 3, characterized in that a water eye socket (24) is also provided in the foot rest (2), which water eye socket (24) is provided on the outlet side of the central hole (5) of the power valve (4).

7. A swinging impact tool according to claim 6, characterized in that the foot rest (2) is provided with a communication hole (25) downstream of the port holder (24) for communicating the first cavity (6) with the outlet end of the foot rest (2).

8. A swinging impact tool according to claim 7, characterized in that the outlet ends of every two of said first cavities (6) are mutually communicating so as to form two U-shaped groove structures (26) in the outer surface of said foot print (2), said communication holes (25) being open in said U-shaped groove structures (26).

9. The oscillating-impact tool as claimed in claim 1, characterized in that the inlet end of the foot rest (2) is provided with an upper cover (27), and the power hammer (3) and the power valve (4) are arranged in a space enclosed by the foot rest (2) and the upper cover (27).