CN108625780A - A kind of eccentric location device suitable for radial bore - Google Patents

A kind of eccentric location device suitable for radial bore Download PDF

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Publication number
CN108625780A
CN108625780A CN201710176783.2A CN201710176783A CN108625780A CN 108625780 A CN108625780 A CN 108625780A CN 201710176783 A CN201710176783 A CN 201710176783A CN 108625780 A CN108625780 A CN 108625780A
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CN
China
Prior art keywords
steering gear
eccentric
drilling
radial bore
location device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710176783.2A
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Chinese (zh)
Other versions
CN108625780B (en
Inventor
陈勇
聂云飞
吴仲华
田宗正
于文涛
陈忠帅
赵宗锋
庄伟�
张锐
宁仁磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Original Assignee
Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Sinopec Oilfield Service Corp, Sinopec Shengli Petroleum Engineering Corp, Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp filed Critical Sinopec Oilfield Service Corp
Priority to CN201710176783.2A priority Critical patent/CN108625780B/en
Publication of CN108625780A publication Critical patent/CN108625780A/en
Application granted granted Critical
Publication of CN108625780B publication Critical patent/CN108625780B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling

Abstract

The present invention relates to petroleum gas oil producing operation field of tool, it is a kind of eccentric location device suitable for radial bore, including upper and lower sequentially connected drilling steering gear 1, eccentric joint 6, wherein, drilling steering gear 1 is configured with drill bit supporting positive cover 2, lower contact is an eccentric structure not on an axis on the eccentric joint 6;It is also connected with articulation 3 between drilling steering gear 1 and eccentric joint 6;The articulation 3 includes establishing the top connection of connection with drilling steering gear 1 and establishing the lower contact of connection with eccentric joint 6, and constitute rotational positioning locking by rotation stop gasket 4 and holding screw 5 between upper and lower connector.The device can efficiently use the steering gear suitable for small size casing, in large scale casing inner diameter to without needing to change steering gear, making drill bit supporting positive cover close to large scale casing wall when drilling by eccentric location device, complete radial bore construction.

Description

A kind of eccentric location device suitable for radial bore
Technical field
The eccentric location device of the present invention is related to production string drilling field, so that hose is passed through by hydraulic action after drilling The collar aperture bored enters oil reservoir, it is established that oil flow channel.Specifically, the present invention makes radial bore tool in large scale oil reservoir set Guan Zhong still can make drill bit supporting positive cover be close to production string, drill convenient for production string.
Background technology
Radial bore technology is an important measures of well production increment, for having in the storey increase design of Low permeable oil and gas reservoirs Good effect.It is commonly available to the steering gear of casing radial bore, during radial bore, drill bit supporting positive cover needs always It is close to casing wall, could drills on casing in this way.But when carrying out radial bore construction in large scale casing, due to casing Internal diameter increases, and drill bit supporting positive cover cannot can not be suitable for construction in large scale casing close to casing, original radial bore tool.
Common solution this method be replace large scale radial bore steering gear, but this method cannot efficiently use it is existing Small size steering gear, cause to waste.
Invention content
The purpose of the present invention in view of the problems of the existing technology, provide it is a kind of be suitable for various sizes of casing inner diameter into The eccentric location device suitable for radial bore of row drilling construction.Using the eccentric location device, steering gear is needed to change in nothing In the case of complete the radial bore constructions of different size casings, for large-sized casing inner diameter to drilling construction provide it is a kind of simply Effective device.
To achieve the goals above, the present invention takes following technical scheme:
A kind of eccentric location device suitable for radial bore, including sequentially connected drilling steering gear 1, eccentric joint 6 up and down, In, drilling steering gear 1 is configured with drill bit supporting positive cover 2, and lower contact is one not on an axis on the eccentric joint 6 Eccentric structure;It is also connected with articulation 3 between drilling steering gear 1 and eccentric joint 6;The articulation 3 includes turning with drilling The top connection of connection is established to device 1 and establishes the lower contact of connection with eccentric joint 6, and passes through rotation stop pad between upper and lower connector Piece 4 and holding screw 5 constitute rotational positioning locking.
The structure of rotation stop gasket 4 includes the pincers tooth being mutually twisted on upper and lower two faces and two faces.
It includes trapezoidal or triangular pyramidal to clamp thread form shape.
The device of the invention mainly by drilling steering gear, drill bit supporting positive cover, articulation, rotation stop gasket, holding screw and partially The components such as heart connector are constituted.Articulation is added between drilling steering gear and eccentric joint, unclamps holding screw and rotation stop gasket, Articulation is adjusted, the eccentric side of eccentric joint is made to be aligned in one direction with drill bit supporting positive cover, tightens holding screw.
The advantage of the invention is that:Realize that drill bit supporting positive cover pastes in large scale casing the case where nothing needs to change steering gear Nearly casing wall completes the radial bore construction of different size casings, reduces construction cost, improve the steering gear scope of application.
Description of the drawings
Fig. 1 is a kind of eccentric location device structural schematic diagram suitable for radial bore;
Wherein 1 drilling steering gear, 2 drill bit supporting positive covers, 3 articulations, 4 rotation stop gaskets, 5 holding screws, 6 eccentric joints, 7 casings, 8 Tubing anchor.
Fig. 2 is the pincers tooth schematic shapes of rotation stop gasket;
There are many tooth forms for pincers tooth on rotation stop gasket two sides, there is trapezoidal tooth or triangle tooth.
Specific implementation mode
The present invention will be further described by Fig. 1 in illustrating below in conjunction with the accompanying drawings.
Shown in Fig. 1 is a kind of eccentric location device suitable for radial bore, including sequentially connected from top to bottom Drill steering gear 1, eccentric joint 6 and tubing anchor 8, wherein drilling steering gear 1 is configured with drill bit supporting positive cover 2, and the bias connects Lower contact is an eccentric structure not on an axis on first 6;It is also connected between drilling steering gear 1 and eccentric joint 6 Articulation 3;The articulation 3 includes establishing the top connection of connection with drilling steering gear 1 and being established under connection with eccentric joint 6 Connector, and rotational positioning locking is constituted by rotation stop gasket 4 and holding screw 5 between upper and lower connector.
The structure of rotation stop gasket 4 includes the pincers tooth being mutually twisted on upper and lower two faces and two faces.
It includes yi shaped ladder shape or triangular pyramidal to clamp thread form shape.
A kind of position fixing process of eccentric location device suitable for radial bore is:It will drilling steering gear and eccentric joint phase Even, tubing anchor is connect below eccentric joint;After connecting, in one direction whether observation drill bit supporting positive cover and eccentric joint eccentric side On;If in one direction, not unclamping holding screw, articulation is adjusted, the eccentric side of eccentric joint is made to exist with drill bit supporting positive cover One direction alignment, tightens holding screw, so that it is fixed by rotation stop gasket.Under get into predetermined well depth, sit and hang tubing anchor, casing Drilling.
The eccentric location device of above-described embodiment can be realized without the feelings for needing to change large-sized radial bore steering gear Under condition, the steering gear of existing radial bore can be efficiently used, it is made to be applicable in various sizes of casing radial bore construction.

Claims (3)

1. a kind of eccentric location device suitable for radial bore, including drilling steering gear(1)And eccentric joint(6), wherein drilling Steering gear(1)It is configured with drill bit supporting positive cover(2), the eccentric joint(6)Upper lower contact is not one inclined on an axis Core structure;It is characterized in that:In drilling steering gear(1)And eccentric joint(6)Between be connected with articulation(3);The articulation(3) Including with drilling steering gear(1)Establish top connection and and the eccentric joint of connection(6)The lower contact of connection is established, and is connect above and below Pass through rotation stop gasket between head(4)And holding screw(5)Constitute rotational positioning locking.
2. the eccentric location device according to claim 1 suitable for radial bore, it is characterized in that:Rotation stop gasket(4)Knot Structure includes the pincers tooth being mutually twisted on upper and lower two faces and two faces.
3. the eccentric location device according to claim 2 suitable for radial bore, it is characterized in that:It includes trapezoidal to clamp thread form shape Or triangular pyramidal.
CN201710176783.2A 2017-03-23 2017-03-23 Eccentric positioning device suitable for radial drilling Active CN108625780B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710176783.2A CN108625780B (en) 2017-03-23 2017-03-23 Eccentric positioning device suitable for radial drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710176783.2A CN108625780B (en) 2017-03-23 2017-03-23 Eccentric positioning device suitable for radial drilling

Publications (2)

Publication Number Publication Date
CN108625780A true CN108625780A (en) 2018-10-09
CN108625780B CN108625780B (en) 2024-02-23

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CN201710176783.2A Active CN108625780B (en) 2017-03-23 2017-03-23 Eccentric positioning device suitable for radial drilling

Country Status (1)

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CN (1) CN108625780B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113027343A (en) * 2021-04-12 2021-06-25 西华大学 Eccentric rotary positioning tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040619A (en) * 1990-04-12 1991-08-20 Halliburton Logging Services, Inc. Wireline supported perforating gun enabling oriented perforations
CN102135011A (en) * 2011-02-15 2011-07-27 上海宏睿油气田径向井技术服务有限公司 Device for pumping coal bed gas through underground radial drilling
CN202023504U (en) * 2011-01-31 2011-11-02 中国石油化工集团公司 Rotary eccentric casing drilling device
CN104165027A (en) * 2013-05-16 2014-11-26 长江大学 Three-dimensional turbine vibrator for petroleum drilling
CN104481399A (en) * 2014-11-20 2015-04-01 西南石油大学 Near-bit well track control tool and control method thereof
CN106285472A (en) * 2015-05-29 2017-01-04 中石化胜利石油工程有限公司钻井工艺研究院 A kind of elastic orienting device being applicable to radial bore construction
CN206769809U (en) * 2017-03-23 2017-12-19 中石化石油工程技术服务有限公司 A kind of eccentric location device suitable for radial bore

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040619A (en) * 1990-04-12 1991-08-20 Halliburton Logging Services, Inc. Wireline supported perforating gun enabling oriented perforations
CN202023504U (en) * 2011-01-31 2011-11-02 中国石油化工集团公司 Rotary eccentric casing drilling device
CN102135011A (en) * 2011-02-15 2011-07-27 上海宏睿油气田径向井技术服务有限公司 Device for pumping coal bed gas through underground radial drilling
CN104165027A (en) * 2013-05-16 2014-11-26 长江大学 Three-dimensional turbine vibrator for petroleum drilling
CN104481399A (en) * 2014-11-20 2015-04-01 西南石油大学 Near-bit well track control tool and control method thereof
CN106285472A (en) * 2015-05-29 2017-01-04 中石化胜利石油工程有限公司钻井工艺研究院 A kind of elastic orienting device being applicable to radial bore construction
CN206769809U (en) * 2017-03-23 2017-12-19 中石化石油工程技术服务有限公司 A kind of eccentric location device suitable for radial bore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113027343A (en) * 2021-04-12 2021-06-25 西华大学 Eccentric rotary positioning tool
CN113027343B (en) * 2021-04-12 2023-09-29 定边县泽林石油工程有限公司 Eccentric rotary positioning tool

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