Combined type well drilling impactor based on hydraulic drive

Abstract

The utility model discloses a compound drilling impactor based on hydraulic drive, which comprises a shell, the inner surface of the shell is fixedly connected with a first bearing plate, the lower surface of the first bearing plate is movably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a rotating blade, the lower surface of the rotating shaft is fixedly connected with a repeated screw rod, and the repeated screw rod is fixedly connected with a piston rod. An impact hammer is movably connected to the outer surface of the repeated screw rod, a first connecting plate is fixedly connected to the lower surface of the impact hammer, an upper ball group is arranged on the lower surface of the first connecting plate, a second connecting plate is movably connected to the inner surface of the shell, and a lower ball group is arranged on the upper surface of the second connecting plate. Through the components, circumferential and axial impact can be generated on the drill bit, the stick-slip vibration phenomenon of the drill bit is reduced, the rock breaking efficiency is improved, the abrasion of the drill bit is reduced, drilling fluid can be input into the drill bit through the water leakage holes, the temperature of the drill bit is reduced, the lubricating effect of the drill bit is improved, and the drill bit is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling impactors, and particularly relates to a hydraulic-driven compound drilling impactor. Background Art

[0002] It is called "black gold". As the exploitation of shallow high-quality oil and gas resources in China has been exhausted, the oil and gas exploitation has gradually developed towards deep and ultra-deep layers. The strength and hardness of rocks have been greatly improved with the increase of drilling depth, and the difficulty of rock breaking has increased significantly. Improving the drilling speed of deep wells has become a key issue in drilling operations. When a PDC bit drills in high-hardness and difficult-to-drill formations, the cutting teeth of the bit may be difficult to cut in due to the too high hardness of the rock, unable to generate sufficient penetration depth, and the bit may also be unable to continuously break the rock due to too small torque, resulting in stick-slip vibration. Therefore, a technology that can increase the penetration depth of the bit, weaken or even eliminate the stick-slip vibration of the bit, and improve the drilling quality and penetration efficiency is needed. The Chinese Patent Network discloses a hydraulic-driven compound drilling impactor with the label "CN221002610U", which promotes the main body of the flow distribution shaft and the impact hammer to continuously reciprocate up and down through the pressure difference, and uses the force transmission mechanism formed by the combination of the upper impact teeth and the lower impact teeth to convert the axial impact of the impact hammer into axial and circumferential impact loads, forming an axial-torsional compound impact, promoting the breaking of rocks by the PDC bit, and improving the penetration efficiency. However, in use, the impact force generated by pushing the impact hammer by the tooth difference is small, resulting in low efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a hydraulic-driven compound drilling impactor. Through the cooperation of the housing, the first bearing plate, the rotating shaft, the rotating blade, the reciprocating screw rod, the impact hammer, the first connecting plate, the upper ball group, the second connecting plate, the lower ball group, the first water leakage hole, the second water leakage hole, the drainage groove, the drain pipe and the third water leakage hole, it can generate circumferential and axial impacts on the bit, reduce the stick-slip vibration phenomenon of the bit, improve the rock breaking efficiency, reduce the wear of the bit, and input the drilling fluid into the bit through the setting of multiple water leakage holes, reduce the temperature of the bit, improve the lubrication effect of the bit, and protect the bit.

[0004] The present utility model further provides a hydraulic-driven compound drilling impactor as described above, comprising: a housing, a first receiving plate fixedly connected to the inner surface of the housing, a first water leakage hole provided on the first receiving plate, a rotating shaft movably connected to the lower surface of the first receiving plate, a rotating blade fixedly connected to the outer surface of the rotating shaft, a reciprocating screw rod fixedly connected to the lower surface of the rotating shaft, a second water leakage hole provided on the inner surface of the reciprocating screw rod, a striking hammer movably connected to the outer surface of the reciprocating screw rod, a third water leakage hole provided in the striking hammer, a first connecting plate fixedly connected to the lower surface of the striking hammer, an upper ball group provided on the lower surface of the first connecting plate, a second connecting plate movably connected to the inner surface of the housing, and a lower ball group provided on the upper surface of the second connecting plate. Through the above components, circumferential and axial impacts can be generated on the drill bit, reducing the stick-slip vibration phenomenon of the drill bit, improving the rock-breaking efficiency, reducing the wear of the drill bit, and the drilling fluid can be input into the drill bit by providing a plurality of water leakage holes, reducing the temperature of the drill bit, improving the lubrication effect of the drill bit, and protecting the drill bit.

[0005] For the hydraulic-driven compound drilling impactor according to the present utility model, a second receiving plate is fixedly connected to the inner surface of the housing, and the rotating shaft is movably connected to the second receiving plate. Through the above components, the rotating shaft is supported to work.

[0006] For the hydraulic-driven compound drilling impactor according to the present utility model, a drainage groove is provided on the rotating shaft. Through the above components, the drilling fluid can be discharged.

[0007] For the hydraulic-driven compound drilling impactor according to the present utility model, a drain pipe is movably connected to the first connecting plate, and a drain pipe is movably connected to the second connecting plate 12. Through the above components, it is convenient to discharge the drilling fluid into the drill bit.

[0008] For the hydraulic-driven compound drilling impactor according to the present utility model, an upper joint is fixedly connected to the upper surface of the housing, and a first thread is provided on the outer surface of the upper joint. Through the above components, it is convenient to connect the drilling rig for drilling work.

[0009] For the hydraulic-driven compound drilling impactor according to the present utility model, a lower joint is fixedly connected to the lower surface of the housing, and a second thread is provided on the outer surface of the lower joint. Through the above components, it is convenient to connect the drill bit for rock drilling work.

[0010] For the hydraulic-driven compound drilling impactor according to the present utility model, a chute is provided on the inner surface of the housing, and the striking hammer is slidably connected to the chute. Through the above components, it is convenient to stably strike the hammer for cyclic impact.

[0011] Beneficial effects

[0012] 1. Compared with the prior art, for the hydraulic-driven compound drilling impactor, through the cooperation of the housing, the first bearing plate, the rotating shaft, the rotating blades, the reciprocating screw rod, the impact hammer, the first connecting plate, the upper ball group, the second connecting plate and the lower ball group, the drilling fluid can drive the rotating shaft to rotate, and the rotating shaft drives the impact hammer to move back and forth on the reciprocating screw rod to impact the second connecting plate, and transmit the circumferential and axial impacts through the ball group, improving the rock-breaking efficiency, reducing the stick-slip vibration phenomenon, and protecting the drill bit.

[0013] 2. Compared with the prior art, for the hydraulic-driven compound drilling impactor, through the cooperation of the first water leakage hole, the second water leakage hole, the drainage groove, the drain pipe and the third water leakage hole, the drilling fluid can flow into the inside of the drill bit of the oil drilling through the impactor, ensuring the lubrication effect of the drill bit of the oil drilling, improving the efficiency, and protecting the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 is the overall structure diagram of the hydraulic-driven compound drilling impactor of the present utility model;

[0016] Figure 2 is the schematic diagram of the sectional connection structure of the hydraulic-driven compound drilling impactor of the present utility model;

[0017] Figure 3 is the internal structure diagram of the hydraulic-driven compound drilling impactor of the present utility model;

[0018] Figure 4 is the schematic diagram of the drain pipe connection structure of the hydraulic-driven compound drilling impactor of the present utility model.

[0019] LEGEND DESCRIPTION:

[0020] 1. Housing; 2. First bearing plate; 3. First water leakage hole; 4. Rotating shaft; 5. Rotating blades; 6. Reciprocating screw rod; 7. Second water leakage hole; 8. Impact hammer; 9. Third water leakage hole; 10. First connecting plate; 11. Upper ball group; 12. Second connecting plate; 13. Lower ball group; 14. Second bearing plate; 15. Drainage groove; 16. Drain pipe; 17. Upper joint; 18. First thread; 19. Lower joint; 20. Second thread; 21. Chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The role of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0022] Referring to Figures 1-4 , the embodiment of the present utility model is based on a hydraulic-driven compound drilling impactor. As Figure 1 shown, it includes: a housing 1 for placing the device. A top joint 17 is fixedly connected to the upper surface of the housing 1 for connecting to a drilling rig. A first thread 18 is provided on the outer surface of the top joint 17. A bottom joint 19 is fixedly connected to the lower surface of the housing 1 for connecting to a drill bit. A second thread 20 is provided on the outer surface of the bottom joint 19.

[0023] A first bearing plate 2 is fixedly connected to the inner surface of the housing 1. First water leakage holes 3 are provided on the first bearing plate 2 for discharging drilling fluid. A rotating shaft 4 is movably connected to the lower surface of the first bearing plate 2 for driving the reciprocating lead screw 6 to rotate. A second bearing plate 14 is fixedly connected to the inner surface of the housing 1. The rotating shaft 4 is movably connected to the second bearing plate 14. Rotating blades 5 are fixedly connected to the outer surface of the rotating shaft 4 for driving the rotating shaft 4 to rotate. Drainage grooves 15 are provided on the rotating shaft 4 for discharging drilling fluid. A reciprocating lead screw 6 is fixedly connected to the lower surface of the rotating shaft 4 for driving the impact hammer 8 to move back and forth. Second water leakage holes 7 are provided on the inner surface of the reciprocating lead screw 6 for discharging drilling fluid. An impact hammer 8 is movably connected to the outer surface of the reciprocating lead screw 6 for providing axial impact by impact. A sliding groove 21 is provided on the inner surface of the housing 1 for the impact hammer 8 to slide. The impact hammer 8 is slidably connected to the sliding groove 21. Third water leakage holes 9 are provided in the impact hammer 8 for discharging drilling fluid. A first connecting plate 10 is fixedly connected to the lower surface of the impact hammer 8 for placing the upper ball group 11. The upper ball group 11 is provided on the lower surface of the first connecting plate 10 for driving the lower ball group 13 to roll. A second connecting plate 12 is movably connected to the inner surface of the housing 1. The lower ball group 13 is provided on the upper surface of the second connecting plate 12. A drain pipe 16 is movably connected to the first connecting plate 10 for discharging drilling fluid. The second connecting plate 12 is movably connected to the drain pipe 16.

[0024] Working principle: When using this device, first connect the upper joint 17 to the drilling rig of the oil well through the first thread 18, and connect the lower joint 19 to the drill bit of the oil well through the second thread 20. Then, discharge the drilling fluid into the internal part of this hydraulic impactor through the upper joint 17. The drilling fluid enters the interior of the housing 1 through the first water leakage holes 3 on the first bearing plate 2, driving the rotating blade 5 to rotate. The rotating blade 5 drives the rotating shaft 4 to rotate, thereby driving the reciprocating lead screw 6 to operate. The impact hammer 8 on the reciprocating lead screw 6 performs an up-and-down cyclic motion under the action of rotation. The first connecting plate 10 on the impact hammer 8 collides with the lower ball group 13 through the upper ball group 11, generating circumferential and axial impact forces on the drill bit to improve the efficiency of the drill bit. The drilling fluid enters the second water leakage hole 7 and the third water leakage hole 9 through the drainage groove 15 on the rotating shaft 4, and finally enters the interior of the drill bit through the drain pipe 16 for lubrication work.

[0025] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains, various changes can be made without departing from the gist of the present utility model.

Claims

1. A hydraulic-driven compound drilling impactor, characterized in that Comprising: A housing (1), a first receiving plate (2) is fixedly connected to the inner surface of the housing (1), a first water leakage hole (3) is provided on the first receiving plate (2), a rotating shaft (4) is movably connected to the lower surface of the first receiving plate (2), a rotating blade (5) is fixedly connected to the outer surface of the rotating shaft (4), a reciprocating lead screw (6) is fixedly connected to the lower surface of the rotating shaft (4), a second water leakage hole (7) is provided on the inner surface of the reciprocating lead screw (6), a striking hammer (8) is movably connected to the outer surface of the reciprocating lead screw (6), a third water leakage hole (9) is provided in the striking hammer (8), a first connecting plate (10) is fixedly connected to the lower surface of the striking hammer (8), an upper ball group (11) is provided on the lower surface of the first connecting plate (10), a second connecting plate (12) is movably connected to the inner surface of the housing (1), and a lower ball group (13) is provided on the upper surface of the second connecting plate (12).

2. The hydraulic-driven compound drilling impactor according to claim 1, characterized in that, A second receiving plate (14) is fixedly connected to the inner surface of the housing (1), and the second receiving plate (14) is movably connected to the rotating shaft (4).

3. The hydraulic-driven compound drilling impactor according to claim 1, wherein A drain groove (15) is provided on the rotating shaft (4).

4. The hydraulic-driven compound drilling impactor according to claim 1, wherein The first connecting plate (10) is movably connected to a drain pipe (16), and the second connecting plate (12) is movably connected to the drain pipe (16).

5. The hydraulic-driven compound drilling impactor according to claim 1, wherein An upper joint (17) is fixedly connected to the upper surface of the housing (1), and a first thread (18) is provided on the outer surface of the upper joint (17).

6. The hydraulic drive-based compound drilling impactor according to claim 1, wherein A lower joint (19) is fixedly connected to the lower surface of the housing (1), and a second thread (20) is provided on the outer surface of the lower joint (19).

7. The hydraulic-driven compound drilling impactor according to claim 1, characterized in that, A chute (21) is provided on the inner surface of the housing (1), and the striking hammer (8) is slidably connected to the chute (21).

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