CN103422814B - Oil drilling three-dimensional waterpower vibrator - Google Patents
Oil drilling three-dimensional waterpower vibrator Download PDFInfo
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- CN103422814B CN103422814B CN201210149117.7A CN201210149117A CN103422814B CN 103422814 B CN103422814 B CN 103422814B CN 201210149117 A CN201210149117 A CN 201210149117A CN 103422814 B CN103422814 B CN 103422814B
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Abstract
The present invention relates to a kind of oil drilling three-dimensional waterpower vibrator, belong to oil drilling tool design field, be made up of flow control valve, axial vibrator, transition joint, screw motor power sub, fluid power impulse generator; It is characterized in that flow control valve is used for regulating mud flow rate and the speed of inflow vibrator; Axial vibrator is used for producing the displacement of in axial direction going up; Transition joint is used for filtering thicker mud components; The mud entering vibrator forms certain pressure reduction inside screw motor power sub, and the rotor structure inside lead-screw motor rotates and eccentric vibrating; Fluid power impulse generator by the change of the area of passage circulation between PDC thrust bearing stationary ring and rotating ring, thus produces vibration circumferentially.The present invention simultaneously axially, the three-dimensional vibrating that circumferentially produces effectively can overcome extended reach well and the frictional resistance between drillstring in horizontal section and the borehole wall, reduce moment of torsion between drill string and the borehole wall, avoid the generation of lock of tool drilling, have and increase substantially drilling efficiency, reduce the feature of drilling cost.
Description
Technical field:
The present invention relates to a kind of oil drilling three-dimensional waterpower vibrator, belong to oil drilling tool design field.
Background technology:
In the process of oil drilling, particularly in the drilling process of extended reach well and horizontal well, the frictional resistance of tubing string is the key problem needing to solve, and it directly determines and affects the maximum extension of extended reach well and horizontal well.
Under normal circumstances, the displacement of extended reach well and horizontal well is greater than or equal to 2 with the ratio of vertical depth, and the lower limit of its hole angle must more than 63 °, and has a vertical section due to general extended reach well, then its maximum hole angle is generally more than 70 °; Tiltedly dark nearly a few km of extended reach well, for horizontal well, well track is approximate to be up to the standard, and well continues in oil reservoir, extend core intersection six times usually.Under these circumstances, the deadweight overwhelming majority of extended reach well and drillstring in horizontal section will press to the borehole wall, will produce very large frictional force between drill string and the borehole wall, thus it is difficult to cause drill string to slide, make drill string bear comparatively high pulling torque, make rate of penetration slow, also likely lock of tool drilling occurs.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of oil drilling three-dimensional waterpower vibrator, effectively can overcome extended reach well and the frictional resistance between drillstring in horizontal section and the borehole wall, reduce moment of torsion between drill string and the borehole wall, avoid the generation of lock of tool drilling, have and increase substantially drilling efficiency, reduce the feature of drilling cost.
The present invention realizes above-mentioned purpose by following technical solution.
In the structure of oil drilling three-dimensional waterpower vibrator, be provided with flow control valve, axial vibrator, transition joint, screw motor power sub, fluid power impulse generator; Described flow control valve is made up of valve body, spool, spring, valve seat; Spool, spring, valve seat are arranged in valve body; Spool is arranged on the top of spring, and the lower end of spring is arranged on valve seat, and valve seat is fixedly mounted on the inwall of valve body; Spool can move axially in valve body; The upper end of valve body is connected by screw thread with drill string; The lower end of valve body is connected by screw thread with the upper end of axle; Valve body has bypass valve opening relative to the position of spool and valve seat junction; Described axial vibrator is made up of axle, top connection, butterfly spring, hollow piston, lower contact; The upper end of axle is connected by screw thread with the lower end of valve body; The upper end of top connection is connected by spline with axle; The lower end of top connection is connected by screw thread with the upper end of lower contact; The lower end of lower contact is connected by screw thread with the upper end of transition joint shell; The lower end of axle is arranged in the cavity of top connection and lower contact, and in the cavity of lower contact, hollow piston is threaded connection the lower end being arranged on axle; Butterfly spring is arranged in the cavity between axle and lower contact, is arranged between the flange of axle and the shoulder of lower contact; Described transition joint is made up of sieves, anti-lost connecting rod, transition joint shell; The upper end of transition joint shell is connected by screw thread with the lower end of lower contact; The lower end of transition joint shell is connected by screw thread with the upper end of screw motor shell; Sieves, anti-lost connecting rod are arranged in transition joint shell; Sieves is arranged on the top of anti-lost connecting rod; The upper surface of anti-lost connecting rod has the flow that circular hole is used for increasing mud inflow; Sieves has filter bores solid particulate filters larger in mud to be fallen; Described screw motor power sub is made up of screw motor shell, elastomer stator, rotor; The upper end of screw motor shell is connected by screw thread with the lower end of transition joint shell; The lower end of screw motor shell is connected by screw thread with the upper end of generator shell; Elastomer stator, rotor are arranged in screw motor shell; Elastomer stator is fixedly mounted on the inwall of screw motor shell; Rotor is arranged in elastomer stator; The upper end of rotor is connected by screw thread with the lower end of anti-lost connecting rod; Described fluid power consists generator shell, connector, PDC bearing rotating ring, PDC bearing stationary ring, anchor tip form; The upper end of generator shell is connected by screw thread with the lower end of screw motor shell; Connector, PDC bearing rotating ring, PDC bearing stationary ring, anchor tip are arranged in generator shell; The upper end of connector is connected by screw thread with the lower end of rotor; The lower end of connector is connected by screw thread with PDC bearing rotating ring; The upper end of anchor tip is connected by screw thread with PDC bearing stationary ring; The lower end of anchor tip is connected by screw thread with generator shell; Flowing hole is had at the garden periphery of PDC bearing stationary ring; When rotor rotation and eccentric vibrating, it moves through connector and is directly delivered on PDC bearing rotating ring, thus makes the mud area of passage of the flowing hole flowed through on PDC bearing stationary ring produce the change of circulation, thus produces vibration circumferentially.
The present invention compared with prior art, can be controlled flow and the speed of mud flexibly, filter out solid particle larger in mud, be produced the displacement of in axial direction going up by axial vibrator; The eccentric vibrating power of circumferencial direction is produced by screw motor power sub, make the pulsation that the change of the area of passage of fluid power impulse generator is along the circumferential direction gone up to produce drill string, thus effectively overcome extended reach well and the frictional resistance between drillstring in horizontal section and the borehole wall, reduce moment of torsion between drill string and the borehole wall, avoid the generation of lock of tool drilling, have and increase substantially drilling efficiency, reduce the feature of drilling cost.
Accompanying drawing illustrates:
Fig. 1 is general structure schematic diagram of the present invention.
Fig. 2 is the structural representation that connector part of the present invention has flow channels.
In the drawings: 1. valve body, 2. spool, 3. spring, 4. valve seat, 5. axle, 6. top connection, 7. butterfly spring, 8. hollow piston, 9. lower contact, 10. sieves, 11. anti-lost connecting rods, 12. transition joint shells, 13. screw motor shells, 14. elastomer stators, 15. rotors, 16. connectors, 17. generator shells, 18.PDC bearing rotating ring, 19.PDC bearing stationary ring, 20. anchor tips, 21. bypass valve openings.
Detailed description of the invention:
Oil drilling three-dimensional waterpower vibrator of the present invention is made up of flow control valve, axial vibrator, transition joint, screw motor power sub, fluid power impulse generator; Described flow control valve is made up of valve body 1, spool 2, spring 3, valve seat 4; Spool 2, spring 3, valve seat 4 are arranged in valve body 1; Spool 2 is arranged on the top of spring 3, and the lower end of spring 3 is arranged on valve seat 4, and valve seat 4 is fixedly mounted on the inwall of valve body 1; Under the mud of inflow and the effect of spring force, spool 2 can move axially in valve body 1; Be used for regulating the inflow velocity of mud and flowing into total amount; The upper end of valve body 1 is connected by screw thread with drill string; The lower end of valve body 1 is connected by screw thread with the upper end of axle 5; Valve body 1 has bypass valve opening 21 relative to spool 2 and the position of valve seat 4 junction; When mud flow rate and pressure reach typical set value, spool 2 moves down, and flow control valve is closed, and namely bypass valve opening 21 is closed, and mud now all flows through valve seat 4 downwards by valve body 1; When slurry flows value is too small or termination of pumping time, when the insufficient pressure produced is to overcome elastic force and the stiction of spring 3, spring 3 is spool 2 upwards jack-up, flow control valve is opened, namely bypass valve opening 21 is in enable possition, part mud now can enter bypass valve opening 21 from the annular space between valve body 1 and the borehole wall, then flow through valve seat 4 downwards; Another part mud normally flows through valve seat 4 downwards from the axis of valve body 1; Described axial vibrator is made up of axle 5, top connection 6, butterfly spring 7, hollow piston 8, lower contact 9; The upper end of axle 5 is connected by screw thread with the lower end of valve body 1; The upper end of top connection 6 is connected by spline with axle 5; The lower end of top connection 6 is connected by screw thread with the upper end of lower contact 9; The lower end of lower contact 9 is connected by screw thread with the upper end of transition joint shell 12; The lower end of axle 5 is arranged in the cavity of top connection 6 and lower contact 9, and axle 5 can be slided in cavity; Positive pressure difference between the drilling liquid pressure of axial vibrator inside and outer shroud makes axle 5 can move up and down in cavity; In the cavity of lower contact 9, hollow piston 8 is threaded connection the lower end being arranged on axle 5; Butterfly spring 7 is arranged in the cavity between axle 5 and lower contact 9, is arranged between the flange of axle 5 and the shoulder of lower contact 9; Between the nipple end and hollow piston 8 of top connection 6, butterfly spring 7 is axially producing spring resistance, and is periodically compressed or extend; Due to from flow control valve flow into vibrator mud flow and speed constantly changes and butterfly spring 7 acts on, axle 5 is moved up and down in cavity, thus axial vibrator produces the displacement of in axial direction going up; Described transition joint is made up of sieves 10, anti-lost connecting rod 11, transition joint shell 12; The upper end of transition joint shell 12 is connected by screw thread with the lower end of lower contact 9; The lower end of transition joint shell 12 is connected by screw thread with the upper end of screw motor shell 13; Sieves 10, anti-lost connecting rod 11 are arranged in transition joint shell 12; Sieves 10 is arranged on the top of anti-lost connecting rod 11; The upper surface of anti-lost connecting rod 11 has the flow that circular hole is used for increasing mud inflow; Sieves 10 has filter bores solid particulate filters larger in mud to be fallen; Described screw motor power sub is made up of screw motor shell 13, elastomer stator 14, rotor 15; The upper end of screw motor shell 13 is connected by screw thread with the lower end of transition joint shell 12; The lower end of screw motor shell 13 is connected by screw thread with the upper end of generator shell 17; Elastomer stator 14, rotor 15 are arranged in screw motor shell 13; Elastomer stator 14 is fixedly mounted on the inwall of screw motor shell 13; Rotor 15 is arranged in elastomer stator 14; The upper end of rotor 15 is connected by screw thread with the lower end of anti-lost connecting rod 11; Effectively can stop rotor 15 slippage in the axial direction; The inner surface of elastomer stator 14, the external surface of rotor 15 have special helix structure; Rotor 15 adopts single head structure, and forms annular seal space structure between rotor 15 and elastomer stator 14; Slurry flows is fashionable, and annular seal space structure in axial direction has certain barometric gradient, and the pressure drive rotor 15 of gradient rotates, and forms a kind of eccentric vibrating; Rotor 15 makes eccentric rotary in elastomer stator 14; Described fluid power consists generator shell 17, connector 16, PDC bearing rotating ring 18, PDC bearing stationary ring 19, anchor tip 20 form; The upper end of generator shell 17 is connected by screw thread with the lower end of screw motor shell 13; The lower end of generator shell 17 is connected by screw thread with drill string below; Connector 16, PDC bearing rotating ring 18, PDC bearing stationary ring 19, anchor tip 20 are arranged in generator shell 17; The upper end of connector 16 is connected by screw thread with the lower end of rotor 15; The lower end of connector 16 is connected by screw thread with PDC bearing rotating ring 18; The upper end of anchor tip 20 is connected by screw thread with PDC bearing stationary ring 19; The lower end of anchor tip 20 is connected by screw thread with generator shell 17; Flowing hole is had at the garden periphery of PDC bearing stationary ring 19; When rotor 15 rotation and eccentric vibrating, it moves through connector 16 and is directly delivered on PDC bearing rotating ring 18, thus makes the mud area of passage of the flowing hole flowed through on PDC bearing stationary ring 19 produce the change of circulation, thus produces vibration circumferentially.
Connector 16 has flow channels, corresponding thereto, also has flowing hole at the center of PDC bearing rotating ring 18 and PDC bearing stationary ring 19; When rotor 15 rotation and eccentric vibrating, it moves through connector 16 and is directly delivered on PDC bearing rotating ring 18, and mud now passes through from the flowing hole of the flow channels connector 16, PDC bearing rotating ring 18 center and the flowing hole of PDC bearing stationary ring 19 center; The mud area of passage of the flowing hole flowed through on PDC bearing stationary ring 19 is made to produce the change of circulation.
Oil drilling three-dimensional waterpower vibrator of the present invention is made up of flow control valve, axial vibrator, transition joint, screw motor power sub, fluid power impulse generator; Flow control valve is used for regulating the flow of mud and speed that flow into vibrator; Axial vibrator is used for producing the displacement of in axial direction going up; Transition joint is used for filtering thicker mud components; The mud entering vibrator forms certain pressure reduction inside screw motor power sub, and the rotor structure inside lead-screw motor rotates, simultaneously rotor eccentric vibrating in elastomer stator; Fluid power impulse generator by the change of the area of passage circulation between PDC thrust bearing stationary ring and rotating ring, thus produces vibration circumferentially.
Drill string drill string in decentralization process that oil drilling three-dimensional waterpower vibrator of the present invention can improve extended reach well and horizontal well at three-dimensional vibrating that is axial, that circumferentially produce simultaneously overcomes the ability of the borehole wall to the resistance of drill string; Reduce the generation to down-hole accidents such as borehole wall backup and bit freezings of drill string that the difference due to drill string pressure and bottom pressure causes more greatly, the moment of torsion of the formation function of reduction suffered by drill string.
Claims (5)
1. oil drilling three-dimensional waterpower vibrator, is made up of flow control valve, axial vibrator, transition joint, screw motor power sub, fluid power impulse generator; It is characterized in that described flow control valve is made up of valve body (1), spool (2), spring (3), valve seat (4); Spool (2), spring (3), valve seat (4) are arranged in valve body (1); Spool (2) is arranged on the top of spring (3), and the lower end of spring (3) is arranged on valve seat (4), and valve seat (4) is fixedly mounted on the inwall of valve body (1); Spool (2) can move axially in valve body (1); The upper end of valve body (1) is connected by screw thread with drill string; The lower end of valve body (1) is connected by screw thread with the upper end of axle (5); Described axial vibrator is made up of axle (5), top connection (6), disk spring (7), hollow piston (8), lower contact (9); The upper end of axle (5) is connected by screw thread with the lower end of valve body (1); The upper end of top connection (6) is connected by spline with axle (5); The lower end of top connection (6) is connected by screw thread with the upper end of lower contact (9); The lower end of lower contact (9) is connected by screw thread with the upper end of transition joint shell (12); The lower end of axle (5) is arranged in the cavity of top connection (6) and lower contact (9), in the cavity of lower contact (9), hollow piston (8) is threaded connection the lower end being arranged on axle (5); Described transition joint is made up of sieves (10), anti-lost connecting rod (11), transition joint shell (12); The upper end of transition joint shell (12) is connected by screw thread with the lower end of lower contact (9); The lower end of transition joint shell (12) is connected by screw thread with the upper end of screw motor shell (13); Sieves (10), anti-lost connecting rod (11) are arranged in transition joint shell (12); Sieves (10) is arranged on the top of anti-lost connecting rod (11); Described screw motor power sub is made up of screw motor shell (13), elastomer stator (14), rotor (15); The upper end of screw motor shell (13) is connected by screw thread with the lower end of transition joint shell (12); The lower end of screw motor shell (13) is connected by screw thread with the upper end of generator shell (17); Elastomer stator (14), rotor (15) are arranged in screw motor shell (13); Elastomer stator (14) is fixedly mounted on the inwall of screw motor shell (13); Rotor (15) is arranged in elastomer stator (14); The upper end of rotor (15) is connected by screw thread with the lower end of anti-lost connecting rod (11); The inner surface of elastomer stator (14), the external surface of rotor (15) have helix structure; Described fluid power consists generator shell (17), connector (16), PDC bearing rotating ring (18), PDC bearing stationary ring (19), anchor tip (20) form; The upper end of generator shell (17) is connected by screw thread with the lower end of screw motor shell (13); Connector (16), PDC bearing rotating ring (18), PDC bearing stationary ring (19), anchor tip (20) are arranged in generator shell (17); The upper end of connector (16) is connected by screw thread with the lower end of rotor (15); The lower end of connector (16) is connected by screw thread with PDC bearing rotating ring (18); The upper end of anchor tip (20) is connected by screw thread with PDC bearing stationary ring (19); The lower end of anchor tip (20) is connected by screw thread with generator shell (17); Flowing hole is had at the garden periphery of PDC bearing stationary ring (19).
2. oil drilling three-dimensional waterpower vibrator according to claim 1, is characterized in that having bypass valve opening (21) relative to spool (2) and the position of valve seat (4) junction on valve body (1).
3. oil drilling three-dimensional waterpower vibrator according to claim 2, it is characterized in that, in the cavity that disk spring (7) is arranged between axle (5) and lower contact (9), being arranged between the flange of axle (5) and the shoulder of lower contact (9).
4. oil drilling three-dimensional waterpower vibrator according to claim 3, is characterized in that on the upper surface of anti-lost connecting rod (11), have the flow that circular hole is used for increasing mud inflow; Sieves (10) has filter bores solid particulate filters larger in mud to be fallen.
5. oil drilling three-dimensional waterpower vibrator according to claim 4, it is characterized in that having flow channels on connector (16), corresponding thereto, also flowing hole is had at the center of PDC bearing rotating ring (18) and PDC bearing stationary ring (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149117.7A CN103422814B (en) | 2012-05-15 | 2012-05-15 | Oil drilling three-dimensional waterpower vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149117.7A CN103422814B (en) | 2012-05-15 | 2012-05-15 | Oil drilling three-dimensional waterpower vibrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103422814A CN103422814A (en) | 2013-12-04 |
| CN103422814B true CN103422814B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210149117.7A Expired - Fee Related CN103422814B (en) | 2012-05-15 | 2012-05-15 | Oil drilling three-dimensional waterpower vibrator |
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| CN (1) | CN103422814B (en) |
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| CN112696163B (en) * | 2021-01-26 | 2024-07-16 | 中国石油大学(北京) | Down-hole friction-reducing hydraulic vibrator |
| CN113073938B (en) * | 2021-03-19 | 2022-01-11 | 四川宏华石油设备有限公司 | Rotary guide tool |
| CN114458228B (en) * | 2021-09-13 | 2024-05-14 | 中海油能源发展股份有限公司 | Vibration plugging tool and plugging method for well casing of abandoned well |
| CN114458229B (en) * | 2021-09-13 | 2024-05-14 | 中海油能源发展股份有限公司 | Vibration plugging tool for well shaft oil pipe of disposal well and plugging method thereof |
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