CN105525875B - rotary steerable drilling device - Google Patents
rotary steerable drilling device Download PDFInfo
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- CN105525875B CN105525875B CN201410506210.8A CN201410506210A CN105525875B CN 105525875 B CN105525875 B CN 105525875B CN 201410506210 A CN201410506210 A CN 201410506210A CN 105525875 B CN105525875 B CN 105525875B
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- heart axle
- directional tube
- rotary steerable
- control
- control valve
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Abstract
Mainly it is made up of the present invention relates to a kind of rotary steerable drilling device in drilling tool field heart axle, directional tube, locator, positioning key, extension spring, control valve, control pin, compression spring, bias block, bearing, sealing device, heart axle is connected with drill string and drill bit.During deflecting, biasing mechanism stretches out, and drill string is eccentric with well, and directional tube does not rotate with biasing mechanism, and the pressure of the drill, moment of torsion are transferred to drill bit by heart axle, realizes that inclination section spin orientation is crept into；During hold angle, biasing mechanism is retracted, and drill string is concentric with well, and the pressure of the drill, moment of torsion are transferred to drill bit by heart axle, realize steady tilted section rotary drilling.Rotary steerable drilling device deflecting ability is strong, has a wide range of application, complex structural well drilling cost can be greatly reduced, while the features such as having that structure design is simple and reliable, easy to process, transmission moment of torsion is big, operate steadily.
Description
Technical field
The one of industry field is drilled the invention mainly relates to oil and gas well drilling, CBM Drilling, geological prospecting, mine
Plant rotary steerable drilling device.
Background technology
In order to meet the requirement of Oil And Gas Exploration And Development, extended reach well, three-dimensional multi target well, long horizontal sections horizontal well,
The complex structural wells such as Multilateral Wells are more and more, and although conventional slide drilling technology disclosure satisfy that the technical requirements of drilling technology, but
Drilling efficiency is significantly less than rotary drilling, and exist poor hole cleaning, poor hole quality, down hole problem take place frequently etc. it is many
Problem, directly affects the Efficient Development of oil-gas reservoir.Therefore rotary steerable drilling technology has been developed, i.e., using rotary steerable drilling
System realizes the adjustment in hole deviation and orientation under rotary drilling mode, coordinates drilling measuring technology and underground control technology, is entering
While row underground survey information Real-time Feedback, the deflecting ability of adjust automatically downhole tool realizes the company of bad hole track
Continue, automatically control, improve drilling efficiency and development benefit.Foreign petroleum company have developed multiple types according to various bias principles
The rotary steerable drilling system of type, and commercial applications have been successfully made, higher economic benefit is achieved, for example
The shaft bottom rotation closed-loop control tapered stabilizer tracks systems of philips companies, the remote-control diameter-variable of sperry-sun companies is steady
Determine device AGS systems and important function has been played in the drilling process of complex structural well, but can not be adjusted due to hole deviation can only be adjusted
Orientation, therefore be restricted using scope；The downhole closed loop rotary steering with geosteering of Baker Hughes companies is bored
Well system RCLS belongs to state type rotary steerable drilling system, and the rotary steerable drilling system SRD of camco companies belongs to adjustable type
Rotary steerable drilling system, sliding sleeve rotary steerable drilling system (patent No. 99127768.6), the liquid of Shi Lumoge companies
Pressure servo loop rotation steerable drilling system (patent No. 00104162.2), the rotation-controllable drilling system automatically controlled and side
Method (patent No. 99127889.5) etc., realizes Three dimensions control.On the basis of studies in China mechanism is according to foreign technology data
The research of rotary steerable drilling device, such as rudder plate formula bit guide (patent No. 96211800.1), eccentric stabilization are carried out
Device drilling guidance instrument (patent No. 91210649), borehole path controller (patent No. 96226289.6) etc., although Neng Goujin
Row directed drilling and orientation adjustment, but well track, and the monopolization due to key technology and member can not be continuously controlled in real time
The limitation of device, the research of domestic rotary steerable drilling technology is still in the desk research stage, it is difficult to meet Domestic Oil And Gas Fields high
Effect exploitation in the urgent need to.
The content of the invention
The problem of existing the present invention be directed to prior art, is proposed a kind of in the premise crept into using rotary drilling mode
Under, using hydraulic pressure, the pressure of the drill, and coordinate measurement while drilling instrument to carry out hole deviation and orientation control, realize that underground is continuously adjusted in real time, carry
The control ability of bad hole track is risen, drilling efficiency and security is improved, and can reach that structure design is simple, be applicable model
Enclose the rotary steerable drilling device that wide, smooth performance is reliable, maintenance is convenient, use cost is cheap.
The technical solution adopted for the present invention to solve the technical problems is：
Rotary steerable drilling device, heart axle 1 is arranged on inside directional tube 2, by being arranged between heart axle 1 and directional tube 2
Convex annular edge and the annular groove being arranged on the inwall of directional tube 2 are constituted to be axially moveable and rotate in a circumferential direction and matched somebody with somebody on the outer wall of heart axle 1
Close, the upper by-pass prot 9 being spaced apart, lower by-pass prot 19 are machined with heart axle 1, wherein the inwall of directional tube 2 on the upper top of by-pass prot 9
It is provided with circular orientation chamber, positioning chamber and is provided with locator 6 and positioning key 7, locator 6 and positioning key 7 is respectively fixedly connected in heart axle 1
On directional tube 2, locating and machining keyway 25 and inclined-plane on locator 6, positioning key 7 can be slided along the inclined-plane of locator 6 and with determining
The axial grafting of position keyway 25 coordinates, and control valve 12 is arranged between directional tube 2 and heart axle 1 in annular space, and can be relatively rotated, and is controlled
Machining control chute 13 on extension spring 10, the inwall of control valve 12 or outer wall is installed, therewith between the upper end of valve 12 processed and directional tube 2
Intrinsic control pin 14 on corresponding heart axle 1 or directional tube 2, control chute 13 and control pin 14 constitute the spacing of axial reciprocating movement
Coordinate, by-pass prot 9 is communicated with the top chamber of control valve 12 on heart axle 1, the lower end of control valve 12 processing intercommunicating pore 16, intercommunicating pore 16 exists
The reciprocating movement of 12 phase center roller of control valve 1 is closed or communicated with lower by-pass prot 19, the directional tube 2 in the lower bottom of by-pass prot 19
Barrel is radially provided with bias block 18, and compression spring 17, bias block 18, directional tube 2, the heart are installed between bias block 18 and directional tube 2
The outer wall of axle 1 formation annular seal space.
Such scheme further comprises：
Heart axle 1 is provided with floating bearing 4, floating bearing 22 and thrust bearing 5, thrust bearing 21 with the joint portion of directional tube 2.
Chute 13 is controlled provided with three axial displacement control stops；Bias block 18 is arranged on directional tube 2 close to drill bit
On one end and non-uniform Distribution directional tube 2.
Lubricating oil is full of in the chamber that heart axle 1, directional tube 2, locator 6, positioning key 7 are formed；Filled in control chute 13
Full lubricating oil.
The outer surface of bias block 18 processes straight rib, and and diameter parallel；Directional tube 2 is non-circular structure.
Sealing device is respectively mounted between heart axle 1 and directional tube 2, between control valve 12 and directional tube 2 and the outer wall of heart axle 1.
The rotary steerable drilling device of the present invention using hydraulic pressure, can be bored while being crept into using rotary drilling mode
Pressure, and coordinate measurement while drilling instrument to carry out hole deviation and orientation control, realize that underground is adjusted in real time, so as to improve bad hole track
Control ability, improve drilling efficiency and security, break foreign technology monopolization, reach and utilize low cost, high efficiency, high safety
Property drilling technology develop oil-gas reservoir purpose.
Meanwhile, rotary steerable drilling device is also with structure design is simple and reliable, easy to process, transmission moment of torsion is big, operation
It is steady the features such as, significant for the drilling efficiency and extension ability of raising complex structural well.
Brief description of the drawings
Fig. 1 is according to a kind of rotary steerable drilling apparatus structure schematic diagram proposed by the invention.
Fig. 2 is the schematic diagram that rotary steerable drilling device positioning key in Fig. 1 departs from locator.
Fig. 3 is the schematic diagram that rotary steerable drilling device positioning key in Fig. 1 enters locator.
Fig. 4 is the amplification expanded schematic diagram of the rotary steerable drilling device locating slot in Fig. 1.
Fig. 5 is A-A sectional schematic diagrams in Fig. 1.
In figure：1- hearts axle, 2- directional tubes, 3- sealing devices, 4- floating bearings, 5- thrust bearings, 6- locators, 7- positioning
Key, 8- sealing devices, 9- by-pass prots, 10- extension springs, 11- sealing devices, 12- control valves, 13- controls chute, 14- controls
Pin, 15- sealing devices, 16- intercommunicating pores, 17- compression springs, 18- bias blocks, 19- by-pass prots, 20- chambers, 21- thrust bearings,
22- floating bearings, 23- sealing devices, 24- centre bores, 25- positioning splines.
Embodiment
It is described in detail the present invention with reference to the accompanying drawings and examples.
Referring to the drawings 1, rotary steerable drilling device, heart axle 1 is arranged on inside directional tube 2, between heart axle 1 and directional tube 2
Be made up of the annular groove for being arranged on convex annular edge on the outer wall of heart axle 1 and being arranged on the inwall of directional tube 2 be axially moveable and
Rotated in a circumferential direction cooperation, and the upper by-pass prot 9 being spaced apart, lower by-pass prot 19 are machined with heart axle 1, wherein the upper top of by-pass prot 9
The inwall of directional tube 2, which is provided with circular orientation chamber, positioning chamber, is provided with locator 6 and positioning key 7, and locator 6 and positioning key 7 are distinguished
It is connected on heart axle 1 and directional tube 2, locating and machining keyway 25 and inclined-plane on locator 6, positioning key 7 can be along the inclined-plane of locator 6
Slide and coordinate (referring to the drawings 2 and 3) with the axial grafting of positioning spline 25, control valve 12 is arranged between directional tube 2 and heart axle 1
In annular space, and can relatively rotate, between the upper end of control valve 12 and directional tube 2 install extension spring 10, the inwall of control valve 12 or
Intrinsic control pin 14 on machining control chute 13 on outer wall, corresponding heart axle 1 or directional tube 2, control chute 13 and control
Pin 14 constitutes by-pass prot 9 on the spacing cooperation of axial reciprocating movement, heart axle 1 and communicated with the top chamber of control valve 12, control valve 12
Lower end processes intercommunicating pore 16, and intercommunicating pore 16 is closed or phase in the reciprocating movement of 12 phase center roller of control valve 1 with lower by-pass prot 19
Logical, the barrel of directional tube 2 in the lower bottom of by-pass prot 19 is radially provided with bias block 18, and pressure is installed between bias block 18 and directional tube 2
Contracting spring 17, bias block 18, directional tube 2, the outer wall of heart axle 1 formation annular seal space.
Above-described embodiment further comprises：
Heart axle 1 is provided with floating bearing 4, floating bearing 22 and thrust bearing 5, thrust bearing 21 with the joint portion of directional tube 2.
Referring to the drawings 4, control chute 13 is provided with three axial displacements control stops；5 bias blocks 18 are arranged on referring to the drawings
On directional tube 2 on one end of drill bit and non-uniform Distribution directional tube 2.
Lubricating oil is full of in the chamber that heart axle 1, directional tube 2, locator 6, positioning key 7 are formed；Filled in control chute 13
Full lubricating oil.
Referring to the drawings 5, the outer surface of bias block 18 processes straight rib, and and diameter parallel；Directional tube 2 is non-circular structure.
The application note of above-described embodiment：
Heart axle is connected with drill string and drill bit, and when carrying out angle buildup interval drilling, cleaner for high-pressure drilling fluid first passes around heart axle top
By-pass prot enters control valve top, and promotes control valve descending, when control valve intercommunicating pore is communicated with the bottom by-pass prot of heart axle, high
Press drilling fluid to enter bias block lower chamber, promote bias block to stretch out and contacted with the borehole wall, produce side force and nearly drill bit is bored
Tool combination forms bias with well, applies the pressure of the drill and causes positioning key to depart from locator, and then rotary drill column driving drill bit broken rock is bored
Enter；When carrying out hold angle well section drilling, termination of pumping, bias block is retracted, and control valve is up, and intercommunicating pore and the by-pass prot of heart axle bottom are closed
Close, simultaneously because the effect of control pin and control chute causes control valve descending locked in turn on pump, then turn on pump, applies and bore
Pressure, because cleaner for high-pressure drilling fluid will not enter bias block lower chamber, therefore will not stretch out, and nearly bit drilling tool combination is same with well
The heart, while rotary drill column driving drill bit broken rock drilling；When carrying out pendulum tool-face, termination of pumping above carries drill string, now the positioning of heart axle edge
Device inclined-plane enters locating slot, rotates drill string driving heart axle, positioning tube and rotates simultaneously, until design orientation.
Claims (6)
1. rotary steerable drilling device, it is characterized in that：Heart axle (1) is arranged on directional tube (2) inside, heart axle (1) and directional tube (2)
Between be made up of the annular groove for being arranged on convex annular edge on heart axle (1) outer wall and being arranged on directional tube (2) inwall along axle
To the mobile and cooperation that rotates in a circumferential direction, the upper by-pass prot (9) being spaced apart, lower by-pass prot (19) are machined with heart axle (1), wherein on
Directional tube (2) inwall on by-pass prot (9) top, which is provided with circular orientation chamber, positioning chamber, is provided with locator (6) and positioning key
(7), locator (6) and positioning key (7) are respectively fixedly connected on heart axle (1) and directional tube (2), locating and machining key on locator (6)
Groove (25) and inclined-plane, positioning key (7) can be slided along locator (6) inclined-plane and coordinated with the axial grafting of positioning spline (25), control
Valve (12) processed is arranged between directional tube (2) and heart axle (1) in annular space, and heart axle being capable of the rotation of relation control valve, control valve (12)
Machining control chute (13) on extension spring (10), control valve (12) inwall or outer wall is installed between upper end and directional tube (2), with
Corresponding heart axle (1) or directional tube (2) on be fixed with control pin (14), control chute (13) and control pin (14) constitute axial
By-pass prot (9) is communicated with control valve (12) top chamber on the spacing cooperation moved back and forth, heart axle (1), control valve (12) lower end
Intercommunicating pore (16) is processed, intercommunicating pore (16) is in control valve (12) phase center roller (1) reciprocating movement and lower by-pass prot (19) structure
Into closing or communicating cooperation, directional tube (2) barrel in lower by-pass prot (19) bottom is radially provided with bias block (18), bias block
(18) compression spring (17), bias block (18), directional tube (2), the formation sealing of heart axle (1) outer wall are installed between directional tube (2)
Chamber.
2. rotary steerable drilling device according to claim 1, it is characterized in that：Heart axle（1）Upper end and directional tube（2）Upper end
Between be provided with floating bearing（4）And thrust bearing（5）, heart axle（1）Lower end and directional tube（2）Floating bearing is provided between lower end
（22）And thrust bearing（21）.
3. rotary steerable drilling device according to claim 1 or 2, it is characterized in that：Chute (13) is controlled provided with three axles
To Bit andits control stop；One end that bias block (18) is arranged on directional tube (2) close to drill bit is not homogeneously distributed in directional tube
(2) on.
4. rotary steerable drilling device according to claim 3, it is characterized in that：By heart axle (1), directional tube (2), locator
(6), it is full of lubricating oil in the chamber of positioning key (7) formation；Control to be full of lubricating oil in chute (13).
5. rotary steerable drilling device according to claim 4, it is characterized in that：Bias block (18) outer surface processes straight rib,
And and diameter parallel；Directional tube (2) is non-circular structure.
6. rotary steerable drilling device according to claim 1, it is characterized in that：Between heart axle (1) and directional tube (2), control
Sealing device is respectively mounted between valve (12) processed and directional tube (2) and heart axle (1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506210.8A CN105525875B (en) | 2014-09-28 | 2014-09-28 | rotary steerable drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506210.8A CN105525875B (en) | 2014-09-28 | 2014-09-28 | rotary steerable drilling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105525875A CN105525875A (en) | 2016-04-27 |
| CN105525875B true CN105525875B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506210.8A Active CN105525875B (en) | 2014-09-28 | 2014-09-28 | rotary steerable drilling device |
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| Country | Link |
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| CN (1) | CN105525875B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152258B (en) * | 2017-06-05 | 2019-06-18 | 中国海洋石油集团有限公司 | A kind of controlling lost circulation valve |
| CN108343380B (en) * | 2018-01-23 | 2019-05-21 | 中煤科工集团西安研究院有限公司 | Underground coal mine nearly horizontal drilling directional type spin orientation boring means and method |
| CN108952575A (en) * | 2018-07-24 | 2018-12-07 | 徐芝香 | Torticollis static state directional type rotary steerable tool |
| CN108952572A (en) * | 2018-08-24 | 2018-12-07 | 广州海洋地质调查局 | A kind of adjustable guide drilling tool in continuous pipe drilling well underground |
| CN110094161B (en) * | 2019-05-28 | 2021-09-28 | 西南石油大学 | Mechanical rotary guiding tool |
| CN110067511B (en) * | 2019-05-28 | 2020-07-17 | 西南石油大学 | Impeller-driven rotary steering drilling tool |
| CN110067510B (en) * | 2019-05-28 | 2020-07-28 | 西南石油大学 | Push-against type rotary steering drilling tool |
| CN111827883B (en) * | 2020-05-29 | 2022-02-25 | 中国石油天然气集团有限公司 | Rotary guide tool |
| CN112832689B (en) * | 2021-03-25 | 2022-11-15 | 中国石油天然气集团有限公司 | Drill stem rotary directional control drilling tool |
| CN116624089B (en) * | 2023-07-17 | 2023-09-12 | 山东石油化工学院 | Double-bending directional motor |
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| US5467834A (en) * | 1994-08-08 | 1995-11-21 | Maverick Tool Company | Method and apparatus for short radius drilling of curved boreholes |
| CN2264801Y (en) * | 1996-05-13 | 1997-10-15 | 辽河石油勘探局钻井二公司 | Borehole path controller |
| US6092610A (en) * | 1998-02-05 | 2000-07-25 | Schlumberger Technology Corporation | Actively controlled rotary steerable system and method for drilling wells |
| US6158529A (en) * | 1998-12-11 | 2000-12-12 | Schlumberger Technology Corporation | Rotary steerable well drilling system utilizing sliding sleeve |
| US6109372A (en) * | 1999-03-15 | 2000-08-29 | Schlumberger Technology Corporation | Rotary steerable well drilling system utilizing hydraulic servo-loop |
| CA2345560C (en) * | 2000-11-03 | 2010-04-06 | Canadian Downhole Drill Systems Inc. | Rotary steerable drilling tool |
| CN2545352Y (en) * | 2002-04-19 | 2003-04-16 | 胜利石油管理局钻井工程技术公司 | Rotary guide for drilling |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN202220554U (en) * | 2011-08-31 | 2012-05-16 | 中国石油化工股份有限公司 | Inclined disk plunger type rotary guide well-drilling tool |
| CN103527083B (en) * | 2013-10-29 | 2018-03-02 | 中国石油化工集团公司 | Rotary steering drilling tool |
| CN103939017B (en) * | 2014-04-29 | 2015-10-07 | 重庆前卫科技集团有限公司 | Quiescent biasing pushing type rotary steering drilling tool |
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2014
- 2014-09-28 CN CN201410506210.8A patent/CN105525875B/en active Active
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| CN105525875A (en) | 2016-04-27 |
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