CN101975059B - Mark-guide underground operation process - Google Patents

Mark-guide underground operation process Download PDF

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Publication number
CN101975059B
CN101975059B CN201010525368.1A CN201010525368A CN101975059B CN 101975059 B CN101975059 B CN 101975059B CN 201010525368 A CN201010525368 A CN 201010525368A CN 101975059 B CN101975059 B CN 101975059B
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CN
China
Prior art keywords
mark
underground
guide
operation process
perforation
Prior art date
Application number
CN201010525368.1A
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Chinese (zh)
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CN101975059A (en
Inventor
不公告发明人
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刘玉明
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Publication date
Application filed by 刘玉明 filed Critical 刘玉明
Priority to CN201010525368.1A priority Critical patent/CN101975059B/en
Publication of CN101975059A publication Critical patent/CN101975059A/en
Application granted granted Critical
Publication of CN101975059B publication Critical patent/CN101975059B/en

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Abstract

The invention relates to a mark-guide underground operation process. In the mark-guide underground operation process, marks are manufactured at one side of the inner wall of a sleeve and used as underground operation reference coordinates, and subsequent operations of perforating, fracturing, acidizing, injecting, and the like, which require guide, are carried out through a guide connecting device by taking the marks as references; the marks can be obtained through the methods of explosive energy flow cutting, mechanical cutting or laser cutting, and the like before or during normal construction operations; and the underground coordinate parameters of the marks, which are measured once, can be used for permanently providing a position support for the design, the construction and the matched tools of subsequent operations so as to solve the problems that the underground operations need marking, positioning and guiding. The method has the advantages of novel conception and reliable work, is easy to construct, forms a brand-new operation process mode by utilizing underground mark original points and can improve the operation precision and reduce operation errors. The process technology developed on perforation operations can be used for replacing complicated construction technologies of oil pipe conveying directional perforation, module perforation, and the like, reduces the construction cost, improves the working efficiency, and can be combined with operations of perforating, testing, fracturing, acidizing, injecting, and the like to form respectively independent processes and provide more choices for the production and benefit increase of oil fields.

Description

Mark-guide underground operation process

Technical field

The present invention relates to a kind of for the oil-gas mining process of oil gas water well underground work particularly.

Background technology

In the underground work process of oil-gas mining, to the operation of target zone, be from ground spreading, the instrument adopting and instrument are to take ground as basic engineering, construction parameter be take ground as origin of coordinates calculating.Due to tester and technique, make some downhole parameters obtain difficulty, subsequent job cannot carry out or executory cost high.The wherein perforating job before fracturing work, perforator can arbitrarily rotate in down-hole, causes the eyelet direction of perforation also with the rotation of perforator, to change, the random fluctuation of perforation direction coordinate.If make each preforation tunnel there is definite direction, must by oil pipe conveying-type oriented perforation technology or modularization perforating technology completes, wherein relate to the equipment of complex and expensive and complicated construction sequence, even if like this after perforation, also cannot accurately indicate the position in duct, down-hole, this has just caused great obstacle to the construction operation that needs duct coordinate parameters to carry out.In addition, in old well fracturing yield increasing transformation process, many situations wish to seal original duct, perforate pressure break new direction.For meeting this requirement, before perforation, must predict the direction of original perforation, could when perforation, avoid previous duct, new pressure break direction and previous pressure break direction are staggered, and current duct parameter is incomplete, cannot be for lower correlations operation provides guiding, and existing instrument and the original duct of locating difficulty very, thereby make such scheme be difficult to realize.

Under existing well in operation technique, every repetition perforation etc. of relating in the form, minute direction pressure break, duct of measuring perforation tunnel needs down-hole to identify the guiding of conduct and the operation of indication, is all that prior art cannot realize or realize exceedingly difficult.

Summary of the invention

While the object of the present invention is to provide the underground work such as a kind of perforation carrying out, pressure break, acidifying in sleeve pipe, can indicate accurately the mark-guide underground operation process with direct subsequent operation.

Technical scheme of the present invention is as follows: this kind of mark-guide underground operation process made indelible mark by inwall one side of near the inwall of sleeve pipe target zone or the sleeve pipe of target zone, as underground work reference coordinate, and with this, be labeled as benchmark and implement subsequent job by guiding connection device.This mark can be before formal construction operation or simultaneously, and the methods such as energy flow cutting, machine cuts or laser cutting by blast obtain, and are generally circular hole.By measuring the once down-hole coordinate parameters of this mark, forever design, construction and the kit for subsequent job provides orientation support, thereby solves the problem that underground work needs sign, location and guiding.

Mark-guide underground operation process provided by the invention is novel, easy to implement, reliable operation, utilize the method by set up a mark initial point in down-hole, and with this, be labeled as starting point and form brand-new technology pattern, can improve homework precision, reduce operation error.The alternative oil pipe of technology that the method forms in perforating job is carried the complicated construction technology such as oriented perforating, module perforation, reduces its operating expenses, improves work efficiency; Can be a minute direction pressure break, duct and measure, repeat that perforation, acidifying, survey bore, filling operation provides oriented identification, be combined with perforation, test, pressure break, acidifying and form separately independently technique, for oilfield stimulation synergy provides more selection.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.

Fig. 1 is operating principle schematic diagram of the present invention.

In figure, 1 is sleeve pipe, and 2 is mark, and 3 is location key pin, and 4 for there being the guiding device of location key pin, and 5 is power tool, 6 stratum.

The specific embodiment

Below in conjunction with accompanying drawing, embodiments of the invention are further described.

Embodiment 1: for minute direction pressure break etc., do not need definite azimuthal operation, specifically in perforation for the first time, in the bottom of one direction perforator, be furnished with the punching bullet that can output regulation mark 2 holes on sleeve pipe 1, punching direction is identical with perforation direction, rear this direction is carried out to pressure break.After exploitation certain hour, seal the duct of this direction, be lowered to guiding device 4, and be fixed on mark 2 holes by location key pin 3, carry out other direction perforation, rear to this direction pressure break.This kind of mode once obtained good effect in the coal-bed gas exploitation operation of somewhere.

Embodiment 2: for oriented perforation, use cable that Tapper is lowered to target zone below, and make mark 2 on sleeve pipe 1 inwall, be lowered to again guiding device 4 and be fixed on hole shape mark 2 by location key pin 3, the gathering sill of guiding device 4 (face) becomes to determine angle with mark 2 directions, then with gyroscope, measures mark 2 directions.According to mark 2 directions, the guide holder of power tool (perforator) 5 is adjusted to the direction of wanting on the ground, the perforation of going into the well, the common fishing tool of rear use trips out guiding device 4; When wanting again, with a layer different directions perforation, only guiding device 4 still need to be fixed on mark 2, can be to the orientation perforation of wanting according to mark 2 coordinates.This kind of method be for the directional well operation in certain oil field, the cost that improved loss of efficiency.

Claims (2)

1. a mark-guide underground operation process, it is characterized in that: this kind of mark-guide underground operation process is to make permanent marks by inwall one side of near the inwall of sleeve pipe target zone or the sleeve pipe of target zone, and be labeled as benchmark with this, by there being the guiding device of location key pin to implement subsequent job, thereby solve in underground construction the problem without sign and guidance difficulties;
Described sleeve pipe is cast in stratum by cement, is a part for the borehole wall;
Described permanent marks can be before formal construction operation or simultaneously, by the energy flow cutting of exploding, machine cuts or laser cutting casing wall, is obtained;
Described location key pin is scalable, and angled with the spigot surface on guiding device.
2. the mark-guide underground operation process as described in claim 1, is characterized in that: guiding device is thrown in by special tool, and is fixed on mark by location key pin, transmits the coordinate information of mark to subsequent job.
CN201010525368.1A 2010-10-31 2010-10-31 Mark-guide underground operation process CN101975059B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010525368.1A CN101975059B (en) 2010-10-31 2010-10-31 Mark-guide underground operation process

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Application Number Priority Date Filing Date Title
CN201010525368.1A CN101975059B (en) 2010-10-31 2010-10-31 Mark-guide underground operation process

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CN101975059A CN101975059A (en) 2011-02-16
CN101975059B true CN101975059B (en) 2014-02-26

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418515B (en) * 2011-09-08 2014-04-23 中铁上海工程局市政工程有限公司 Method for performing shaft orientation survey by using optical plummet
CN104747168B (en) * 2013-12-31 2017-10-10 中国石油化工集团公司 A kind of method of direct measurement directional well engineering angular difference

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083165A (en) * 1993-03-30 1994-03-02 雷豫生 Suspended digital control marking device for well logging cable
CN201106439Y (en) * 2007-12-19 2008-08-27 吉林石油集团有限责任公司 Orientation mechanism for high-precision perforating
CN101435323A (en) * 2008-11-24 2009-05-20 中国石油集团长城钻探工程有限公司 Technological process of making position gun perforation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6499537B1 (en) * 1999-05-19 2002-12-31 Smith International, Inc. Well reference apparatus and method
US8172007B2 (en) * 2007-12-13 2012-05-08 Intelliserv, LLC. System and method of monitoring flow in a wellbore

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083165A (en) * 1993-03-30 1994-03-02 雷豫生 Suspended digital control marking device for well logging cable
CN201106439Y (en) * 2007-12-19 2008-08-27 吉林石油集团有限责任公司 Orientation mechanism for high-precision perforating
CN101435323A (en) * 2008-11-24 2009-05-20 中国石油集团长城钻探工程有限公司 Technological process of making position gun perforation

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