CN202611591U - Three-dimensional waterpower vibrator for petroleum drilling - Google Patents

Three-dimensional waterpower vibrator for petroleum drilling Download PDF

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Publication number
CN202611591U
CN202611591U CN 201220216521 CN201220216521U CN202611591U CN 202611591 U CN202611591 U CN 202611591U CN 201220216521 CN201220216521 CN 201220216521 CN 201220216521 U CN201220216521 U CN 201220216521U CN 202611591 U CN202611591 U CN 202611591U
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CN
China
Prior art keywords
screw thread
shell
valve
vibrator
axle
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Application number
CN 201220216521
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Chinese (zh)
Inventor
易先中
张军锋
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长江大学
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Priority to CN 201220216521 priority Critical patent/CN202611591U/en
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Publication of CN202611591U publication Critical patent/CN202611591U/en

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Abstract

The utility model relates to a three-dimensional waterpower vibrator for petroleum drilling and belongs to the technical field of petroleum drilling tool design. The three-dimensional waterpower vibrator is composed of a flow control valve, an axial vibrator, a filter connector, a threaded rod motor power connector and a fluid force impulse generator. The three-dimensional waterpower vibrator is characterized in that the flow control valve is used for adjusting flow and speed of slurry flowing into the vibrator. The axial vibrator is used for generating displacement along the axial direction. The filter connector is used for filtering rough slurry ingredients. The slurry entering the vibrator generates certain pressure differences in the threaded rod motor power connector to drive a rotor structure in the threaded rod motor to rotate and eccentrically vibrate. The fluid force impulse generator generates vibrations on the circumferential direction through recycling changes of a flowing area between a static ring and a moving ring of a primary domain controller (PDC) pushing force bearing. The three-dimensional waterpower vibrator simultaneously generates three-dimensional vibrations on the axial direction and the circumferential direction. Therefore, the three-dimensional vibrations can effectively overcome frictional resistance between drill columns of a large displacement well and a level well and a well wall, and reduce torsion between the drilling columns and the well wall. Consequently, accidents of drilling sticking can be prevented, drilling efficiency is greatly improved, and drilling cost is reduced.

Description

Oil drilling is with three-dimensional hydraulic vibration device

Technical field:

The utility model relates to a kind of oil drilling with three-dimensional hydraulic vibration device, belongs to the 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 that needs solution, and it directly determines and influence the maximum extension of extended reach well and horizontal well.

Generally, 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 surpass 63 °, and because general extended reach well all has a vertical section, then its maximum hole angle is generally more than 70 °; Extended reach well tiltedly reach several kms deeply, for horizontal well, well track is approximate to be up to the standard, well continues in oil reservoir, to extend six times of core intersection usually.Under these circumstances, the deadweight overwhelming majority of extended reach well and horizontal well drill string will be pressed to the borehole wall, will produce very big frictional force between the drill string and the borehole wall; Thereby it is difficult to cause drill string to slide; Drill string is born than high pulling torque, make rate of penetration slow, also lock of tool drilling might take place.

Summary of the invention:

In order to overcome the deficiency of prior art; The purpose of the utility model is to provide a kind of oil drilling with three-dimensional hydraulic vibration device; Can effectively overcome the moment of torsion between frictional resistance, reduction drill string and the borehole wall between extended reach well and the horizontal well drill string and the borehole wall; Avoid the generation of lock of tool drilling, have the drilling efficiency of increasing substantially, reduce the characteristics of drilling cost.

The utility model is realized above-mentioned purpose through following technical scheme.

In the structure of oil drilling, be provided with flow control valve, axial vibration device, transition joint, screw motor power sub, fluid power impulse generator with three-dimensional hydraulic vibration device; Described flow control valve is made up of valve body, spool, spring, valve seat; Spool, spring, valve seat are installed in the valve body; Spool is installed in the top of spring, and the lower end of spring is installed on the 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 through screw thread with drill string; The lower end of valve body is connected through screw thread with the upper end of axle; Position with respect to spool and valve seat junction on valve body has the bypass valve opening; Described axial vibration device is made up of axle, top connection, butterfly spring, hollow piston, lower contact; The upper end of axle is connected through screw thread with the lower end of valve body; The upper end of top connection is connected through spline with axle; The lower end of top connection is connected through screw thread with the upper end of lower contact; The lower end of lower contact is connected through screw thread with the upper end of transition joint shell; The lower end of axle is installed in the cavity of top connection and lower contact, and in the cavity of lower contact, hollow piston is installed in the lower end of axle through being threaded; Butterfly spring is installed in the cavity between axle and the lower contact, is installed between the shoulder of flange and lower contact of axle; Described transition joint is made up of sieves, anti-lost connecting rod, transition joint shell; The upper end of transition joint shell is connected through screw thread with the lower end of lower contact; The lower end of transition joint shell is connected through screw thread with the upper end of screw motor shell; Sieves, anti-lost connecting rod are installed in the transition joint shell; Sieves is installed in the top of anti-lost connecting rod; On the upper surface of anti-lost connecting rod, have circular hole and be used for increasing the flow that mud flows into; On sieves, having filtering holes can filter out solid particle bigger in the mud; Described screw motor power sub is made up of screw motor shell, elastomer stator, rotor; The upper end of screw motor shell is connected through screw thread with the lower end of transition joint shell; The lower end of screw motor shell is connected through screw thread with the upper end of generator shell; Elastomer stator, rotor are installed in the screw motor shell; Elastomer stator is fixedly mounted on the inwall of screw motor shell; Rotor is installed in the elastomer stator; The upper end of rotor is connected through screw thread with the lower end of anti-lost connecting rod; Described fluid power impulse generator is made up of generator shell, connector, PDC bearing rotating ring, PDC bearing stationary ring, anchor tip; The upper end of generator shell is connected through screw thread with the lower end of screw motor shell; Connector, PDC bearing rotating ring, PDC bearing stationary ring, anchor tip are installed in the generator shell; The upper end of connector is connected through screw thread with the lower end of rotor; The lower end of connector is connected through screw thread with PDC bearing rotating ring; The upper end of anchor tip is connected through screw thread with PDC bearing stationary ring; The lower end of anchor tip is connected through screw thread with generator shell; Circumferential edge at PDC bearing stationary ring has flowing hole; When the rotor rotation was vibrated with off-centre, it moved through connector and is directly delivered on the PDC bearing rotating ring, thereby made the mud area of passage of the flowing hole on the PDC bearing stationary ring of flowing through produce the variation of circulation, thereby produced the vibration on the circumferencial direction.

The utility model can be controlled the flow and the speed of mud compared with prior art flexibly, filters out solid particle bigger in the mud, produces the displacement of in axial direction going up through the axial vibration device; Produce the eccentric vibration force of circumferencial direction through the screw motor power sub; Make the variation of the area of passage of fluid power impulse generator produce the pulsation that drill string is along the circumferential direction gone up; Thereby effectively overcome the moment of torsion between frictional resistance, reduction drill string and the borehole wall between extended reach well and the horizontal well drill string and the borehole wall; Avoid the generation of lock of tool drilling, have the drilling efficiency of increasing substantially, reduce the characteristics of drilling cost.

Description of drawings:

Fig. 1 is the general structure sketch map of the utility model.

Fig. 2 has the structural representation of flow channels for the connector part of the utility model.

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.

The specific embodiment:

The utility model oil drilling is made up of flow control valve, axial vibration device, transition joint, screw motor power sub, fluid power impulse generator with three-dimensional hydraulic vibration device; 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 installed in the valve body 1; Spool 2 is installed in the top of spring 3, and the lower end of spring 3 is installed on the valve seat 4, and valve seat 4 is fixedly mounted on the inwall of valve body 1; Under the effect of mud that flows into and spring force, spool 2 can move axially in valve body 1; Be used for regulating the inflow velocity and inflow total amount of mud; The upper end of valve body 1 is connected through screw thread with drill string; The lower end of valve body 1 is connected through screw thread with the upper end of axle 5; Position with respect to spool 2 and valve seat 4 junctions on valve body 1 has bypass valve opening 21; When mud flow rate and pressure reached typical set value, spool 2 moved down, and flow control valve is closed, and promptly bypass valve opening 21 is closed, and the mud of this moment is all by valve body 1 valve seat 4 of flowing through downwards; When the slurry flows value during too small or termination of pumping; The insufficient pressure that is produced is during with the elastic force that overcomes spring 3 and stiction; Spring 3 is spool 2 jack-up upwards, and flow control valve is opened, and promptly bypass valve opening 21 is in the enable possition; The part mud of this moment can get into bypass valve opening 21, the valve seat 4 of flowing through then downwards from the annular space between the valve body 1 and the borehole wall; Another part mud is from the valve seat 4 of axially normally flowing through downwards of valve body 1; Described axial vibration device 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 through screw thread with the lower end of valve body 1; The upper end of top connection 6 and axle 5 are connected through spline; The lower end of top connection 6 is connected through screw thread with the upper end of lower contact 9; The lower end of lower contact 9 is connected through screw thread with the upper end of transition joint shell 12; The lower end of axle 5 is installed in the cavity of top connection 6 and lower contact 9, and axle 5 can be slided in cavity; Inner drilling liquid pressure and the positive pressure difference between the outer shroud of axial vibration device makes axle 5 in cavity, can move up and down; In the cavity of lower contact 9, hollow piston 8 is installed in the lower end of axle 5 through being threaded; Butterfly spring 7 is installed in the cavity between axle 5 and the lower contact 9, is installed between the shoulder of flange and lower contact 9 of axle 5; Between the nipple end and hollow piston 8 of top connection 6, butterfly spring 7 is axially producing the spring resistance, and periodically is compressed or extends; Owing to flow into the flow and the constantly variation and butterfly spring 7 effects of speed of the mud of vibrator from flow control valve, make axle 5 in cavity, move up and down, thereby the axial vibration device produce 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 through screw thread with the lower end of lower contact 9; The lower end of transition joint shell 12 is connected through screw thread with the upper end of screw motor shell 13; Sieves 10, anti-lost connecting rod 11 are installed in the transition joint shell 12; Sieves 10 is installed in the top of anti-lost connecting rod 11; On the upper surface of anti-lost connecting rod 11, have circular hole and be used for increasing the flow that mud flows into; On sieves 10, have filtering holes can be with mud in bigger solid particle filter out; 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 through screw thread with the lower end of transition joint shell 12; The lower end of screw motor shell 13 is connected through screw thread with the upper end of generator shell 17; Elastomer stator 14, rotor 15 are installed in the screw motor shell 13; Elastomer stator 14 is fixedly mounted on the inwall of screw motor shell 13; Rotor 15 is installed in the elastomer stator 14; The upper end of rotor 15 is connected through screw thread with the lower end of anti-lost connecting rod 11; Can effectively stop the slippage of rotor 15 on axial direction; The external surface of the inner surface of elastomer stator 14, rotor 15 has special helix structure; Rotor 15 adopts the single head structure, and forms the annular seal space structure between rotor 15 and the elastomer stator 14; Slurry flows is fashionable, and the annular seal space structure in axial direction has certain barometric gradient, force rotor 15 rotations of gradient property, and form a kind of eccentric vibration; Rotor 15 is made eccentric rotary in elastomer stator 14; Described fluid power impulse generator is made up of generator shell 17, connector 16, PDC bearing rotating ring 18, PDC bearing stationary ring 19, anchor tip 20; The upper end of generator shell 17 is connected through screw thread with the lower end of screw motor shell 13; The lower end of generator shell 17 is connected through screw thread with following drill string; Connector 16, PDC bearing rotating ring 18, PDC bearing stationary ring 19, anchor tip 20 are installed in the generator shell 17; The upper end of connector 16 is connected through screw thread with the lower end of rotor 15; The lower end of connector 16 and PDC bearing rotating ring 18 are connected through screw thread; The upper end of anchor tip 20 and PDC bearing stationary ring 19 are connected through screw thread; The lower end of anchor tip 20 and generator shell 17 are connected through screw thread; Circumferential edge at PDC bearing stationary ring 19 has flowing hole; When rotor 15 rotations were vibrated with off-centre, it moved through connector 16 and is directly delivered on the PDC bearing rotating ring 18, thereby made the mud area of passage of the flowing hole on the PDC bearing stationary ring 19 of flowing through produce the variation of circulation, thereby produced the vibration on the circumferencial direction.

On connector 16, have flow channels, corresponding with it, also have flowing hole at the center of PDC bearing rotating ring 18 and PDC bearing stationary ring 19; When rotor 15 rotations are vibrated with off-centre; It moves through connector 16 and is directly delivered on the PDC bearing rotating ring 18, passes through the flowing hole of the flow channels of mud from connector 16 of this moment, the flowing hole of PDC bearing rotating ring 18 centers and PDC bearing stationary ring 19 centers; The mud area of passage of the flowing hole on the feasible PDC bearing stationary ring 19 of flowing through produces the variation of circulation.

The oil drilling of the utility model is made up of flow control valve, axial vibration device, transition joint, screw motor power sub, fluid power impulse generator with three-dimensional hydraulic vibration device; Flow control valve is used for regulating the flow and the speed of the mud that flows into vibrator; The axial vibration device is used for producing the displacement of in axial direction going up; Transition joint is used for filtering thicker mud composition; The mud that gets into vibrator forms certain pressure reduction in screw motor power sub the inside, the rotor structure rotation of lead-screw motor the inside, rotor eccentric vibration in elastomer stator simultaneously; The fluid power impulse generator is through the variation of the circulation of the area of passage between PDC thrust bearing stationary ring and the rotating ring, thus the vibration on the generation circumferencial direction.

The drill string that the three-dimensional vibrating that the oil drilling of the utility model produces on axial, circumferencial direction with three-dimensional hydraulic vibration device simultaneously can improve extended reach well and horizontal well is transferring that drill string overcomes the ability of the borehole wall to the resistance of drill string in the process; Reduce because the drill string that the difference of drill string pressure and bottom pressure causes more greatly to the generation of down-hole accidents such as borehole wall backup and bit freezing, reduces the moment of torsion that the suffered stratum of drill string acts on.

Claims (5)

1. oil drilling is made up of flow control valve, axial vibration device, transition joint, screw motor power sub, fluid power impulse generator with three-dimensional hydraulic vibration device; 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 installed in the valve body (1); Spool (2) is installed in the top of spring (3), and the lower end of spring (3) is installed on the 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 through screw thread with drill string; The lower end of valve body (1) is connected through screw thread with the upper end of axle (5); Described axial vibration device 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 through screw thread with the lower end of valve body (1); The upper end of top connection (6) is connected through spline with axle (5); The lower end of top connection (6) is connected through screw thread with the upper end of lower contact (9); The lower end of lower contact (9) is connected through screw thread with the upper end of transition joint shell (12); The lower end of axle (5) is installed in the cavity of top connection (6) and lower contact (9), and in the cavity of lower contact (9), hollow piston (8) is installed in the lower end of axle (5) through being threaded; 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 through screw thread with the lower end of lower contact (9); The lower end of transition joint shell (12) is connected through screw thread with the upper end of screw motor shell (13); Sieves (10), anti-lost connecting rod (11) are installed in the transition joint shell (12); Sieves (10) is installed in 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 through screw thread with the lower end of transition joint shell (12); The lower end of screw motor shell (13) is connected through screw thread with the upper end of generator shell (17); Elastomer stator (14), rotor (15) are installed in the screw motor shell (13); Elastomer stator (14) is fixedly mounted on the inwall of screw motor shell (13); Rotor (15) is installed in the elastomer stator (14); The upper end of rotor (15) is connected through screw thread with the lower end of anti-lost connecting rod (11); Described fluid power impulse generator is made up of generator shell (17), connector (16), PDC bearing rotating ring (18), PDC bearing stationary ring (19), anchor tip (20); The upper end of generator shell (17) is connected through 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 installed in the generator shell (17); The upper end of connector (16) is connected through screw thread with the lower end of rotor (15); The lower end of connector (16) is connected through screw thread with PDC bearing rotating ring (18); The upper end of anchor tip (20) is connected through screw thread with PDC bearing stationary ring (19); The lower end of anchor tip (20) is connected through screw thread with generator shell (17); Circumferential edge at PDC bearing stationary ring (19) has flowing hole.
2. oil drilling according to claim 1 is characterized in that having bypass valve opening (21) in the position that valve body (1) is gone up with respect to spool (2) and valve seat (4) junction with three-dimensional hydraulic vibration device.
3. oil drilling according to claim 2 is characterized in that with three-dimensional hydraulic vibration device butterfly spring (7) is installed in the cavity between axle (5) and the lower contact (9), is installed between the shoulder of flange and lower contact (9) of axle (5).
4. oil drilling according to claim 3 is characterized in that on the upper surface of anti-lost connecting rod (11), having circular hole and is used for increasing the flow that mud flows into three-dimensional hydraulic vibration device; On sieves (10), have filtering holes can be with mud in bigger solid particle filter out.
5. oil drilling according to claim 4 is characterized in that on connector (16), having flow channels with three-dimensional hydraulic vibration device, and is corresponding with it, also has flowing hole at the center of PDC bearing rotating ring (18) and PDC bearing stationary ring (19).
CN 201220216521 2012-05-15 2012-05-15 Three-dimensional waterpower vibrator for petroleum drilling CN202611591U (en)

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CN 201220216521 CN202611591U (en) 2012-05-15 2012-05-15 Three-dimensional waterpower vibrator for petroleum drilling

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321576A (en) * 2013-07-17 2013-09-25 西南石油大学 Tubular column lowering power tractor with well grinding and repairing function
CN103422814A (en) * 2012-05-15 2013-12-04 长江大学 Three-dimensional waterpower vibrator for petroleum drilling
CN103527124A (en) * 2013-10-12 2014-01-22 王岳 Unlimitedly-opened/closed by-pass valve and well drilling system
CN103696692A (en) * 2013-12-19 2014-04-02 西安长庆石油工具制造有限责任公司 Radial hydraulic vibrator
CN103835654A (en) * 2014-03-03 2014-06-04 西南石油大学 Friction-reduction and amplitude-increasing downhole tool
CN104165027A (en) * 2013-05-16 2014-11-26 长江大学 Three-dimensional turbine vibrator for petroleum drilling
CN104314481A (en) * 2014-10-16 2015-01-28 中国石油大学(华东) Drill column bionic friction reducing method and self-pull drill tool assembly
CN104499958A (en) * 2014-10-16 2015-04-08 中国石油大学(华东) Method and device for reducing friction of multipoint excitation drill stem
CN105937378A (en) * 2016-06-21 2016-09-14 中国石油天然气集团公司 Downhole screw motor two-way vibration cementing tool and method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422814A (en) * 2012-05-15 2013-12-04 长江大学 Three-dimensional waterpower vibrator for petroleum drilling
CN103422814B (en) * 2012-05-15 2015-10-21 长江大学 Oil drilling three-dimensional waterpower vibrator
CN104165027A (en) * 2013-05-16 2014-11-26 长江大学 Three-dimensional turbine vibrator for petroleum drilling
CN103321576A (en) * 2013-07-17 2013-09-25 西南石油大学 Tubular column lowering power tractor with well grinding and repairing function
CN103527124B (en) * 2013-10-12 2016-06-29 王岳 Infinite switch bypass valve and well system
CN103527124A (en) * 2013-10-12 2014-01-22 王岳 Unlimitedly-opened/closed by-pass valve and well drilling system
CN103696692A (en) * 2013-12-19 2014-04-02 西安长庆石油工具制造有限责任公司 Radial hydraulic vibrator
CN103835654A (en) * 2014-03-03 2014-06-04 西南石油大学 Friction-reduction and amplitude-increasing downhole tool
CN103835654B (en) * 2014-03-03 2016-04-13 西南石油大学 A kind of antifriction resistance increases amplitude downhole tool
CN104314481A (en) * 2014-10-16 2015-01-28 中国石油大学(华东) Drill column bionic friction reducing method and self-pull drill tool assembly
CN104499958A (en) * 2014-10-16 2015-04-08 中国石油大学(华东) Method and device for reducing friction of multipoint excitation drill stem
CN105937378A (en) * 2016-06-21 2016-09-14 中国石油天然气集团公司 Downhole screw motor two-way vibration cementing tool and method
CN105937378B (en) * 2016-06-21 2019-12-10 中国石油天然气集团有限公司 Downhole screw motor bidirectional vibration cementing tool and method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121219

Termination date: 20130515

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