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CN201358754Y - Horizontal well hydraulic layer-change switch - Google Patents

Horizontal well hydraulic layer-change switch Download PDF

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Publication number
CN201358754Y
CN201358754Y CNU2009200223729U CN200920022372U CN201358754Y CN 201358754 Y CN201358754 Y CN 201358754Y CN U2009200223729 U CNU2009200223729 U CN U2009200223729U CN 200920022372 U CN200920022372 U CN 200920022372U CN 201358754 Y CN201358754 Y CN 201358754Y
Authority
CN
China
Prior art keywords
horizontal well
change switch
spring
hydraulic pressure
liquid flow
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.)
Expired - Fee Related
Application number
CNU2009200223729U
Other languages
Chinese (zh)
Inventor
宋相隆
吕玮
吕芳蕾
董社霞
李文波
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.)
Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
Original Assignee
Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
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.)
Filing date
Publication date
Application filed by Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co filed Critical Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
Priority to CNU2009200223729U priority Critical patent/CN201358754Y/en
Application granted granted Critical
Publication of CN201358754Y publication Critical patent/CN201358754Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a horizontal well hydraulic layer-change switch used in the petroleum industry, which is applied to a down-hole string of a horizontal well by matching with other tools for realizing the conversion of single-layer or multilayer production measures, such as production purposes of water plugging, water-surveying, laying oil production and the like. The horizontal well hydraulic layer-change switch comprises a track control mechanism, a lower casing and a spring energy-storage mechanism, wherein a liquid flow hole is arranged on the lower casing. The hydraulic layer-change switch is further provided with a flow dividing system which is arranged in the lower casing and located between the track control mechanism and the spring energy-storage mechanism, and the flow dividing system can control the open-close of the switch. The hydraulic layer-change switch can guarantee the full open-close conversion when pressurizing under the horizontal state. The hydraulic layer-change switch has flexible open and close, stable open-close changeover pressure difference and excellent repeated working performance, can be used by combining multiple stages, guarantees the normal production of the horizontal well, and effectively reduces the production cost.

Description

Horizontal well hydraulic pressure seam change switch
Technical field
The utility model belongs to the downhole tool of petroleum industry horizontal well, particularly horizontal well hydraulic pressure seam change switch is used in the down-hole string of horizontal well, with the supporting use of other instrument, realize the conversion of single or multiple lift production measure, as production purposes such as water blockoff, water detection and layering productions.
Background technology
Present hydraulic pressure seam change switch only is applicable to straight well, if the hydraulic pressure seam change switch of using in the straight well is applied in the horizontal well, steel ball can arbitrarily roll at the switch inner chamber, can not form confined space during pressurization, the pressure of can not dying, cause the transfer trajectory disabler of instrument, can not realize opening and closing function of hydraulic selector, also just can not realize the conversion of production measure.Along with the increase of horizontal well quantity in recent years, and newly throw the horizontal well factors such as the moisture rising in back is fast of going into operation, for at utmost slowing down the horizontal well interlayer contradiction, the well capacity of improving the standard, solve the water blockoff of horizontal well, control shipwreck topic, need the novel horizontal well hydraulic pressure seam change switch of development, by in pipe, adopting multiple-string packer that net horizontal section is separated, the unlatching of each layer hydraulic control switch rationally is set, closing presure, realization multilayer system, closing of multistage adopted or the selectivity exploitation, thereby solves the horizontal well water and oil control, improve the horizontal well interlayer contradiction, reduce the horizontal well production operating cost, improve problems such as horizontal well bottom water coning.
Summary of the invention
The purpose of this utility model provides horizontal well hydraulic pressure seam change switch, is used in the flow string of horizontal well, realizes opening or closing motion by hydraulic way, uses the conversion as horizontal well production measure to provide safeguard with other instrument is supporting.
Use the present technique solution can reach above-mentioned purpose: horizontal well hydraulic pressure seam change switch comprises track controlling organization, lower house and spring energy agency, and lower house is provided with liquid flow hole.This instrument also is provided with diffluence system, and diffluence system is installed in the lower house, and between track controlling organization and spring energy agency, diffluence system is controlled the Push And Release of this instrument.
The utlity model has following innovative point and obvious effects: this instrument is the key tool of water plugging of horizontal well, control water, layering production tubing string, when this instrument can guarantee to suppress under level, steel ball in the diffluence system can the sealing fluid discharge orifice in net horizontal section, make instrument play pressure, guarantee that switch transition puts in place.The open and close flexible movements, switch commutation pressure reduction is stable, repeats favorable working performance, and can multistagely be used in combination, and can control the combination of a plurality of oil reservoirs and change layer production.Guaranteed normally carrying out of horizontal well production, effectively reduced cost of production, the carrying out of other technological measure such as this instrument hollow design helps testing, salvaging.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to accompanying drawing, horizontal well hydraulic pressure seam change switch comprises track controlling organization 1, lower house 7 and spring energy agency 8, and lower house 7 is provided with liquid flow hole.This instrument also is provided with diffluence system, and diffluence system is installed in the lower house 7, and between track controlling organization 1 and spring energy agency 8, diffluence system is controlled the Push And Release of this instrument.Diffluence system comprises little spring 3, steel ball 4, spring housing 5 and divides fluid 6 that little spring 3 is contained in the spring housing 5; Steel ball 4 is positioned at the below of little spring 3.Spring housing 5 is provided with centre bore, the spring eye that distributes on the body wall of periphery, interior dress little spring 3.Divide fluid 6 to be provided with centre bore, the liquid flow hole that distributes on the body wall of periphery, the design of liquid flow hole upper end is in the upper surface of minute fluid 6, and the lower end is positioned on the body wall of branch fluid 6 of piston 2 belows, divides on the cylindrical of liquid flow holes below, fluid 6 lower end, and seal is installed.Hole count on the corresponding spring housing 5 of the number of steel ball 4, the number of little spring 3 and the number of dividing the liquid flow hole of fluid 6.Stop up the last liquid flow hole that divides fluid 6 by steel ball 4, also just stopped up fluid course.The piston 2 bottom cylindricals of track controlling organization 1 are installed seal, guarantee sealing, guarantee that pressure reaches setting value.
When the seal of this instrument piston 2 bottoms is in the top of lower house 7 inlet openings in the use, this moment, this instrument was in open mode, liquid is from the inlet opening feed liquor of lower house 7, promote steel ball 4, little spring 3 by the liquid flow hole in minute fluid 6, the liquid flow hole of opening branch fluid 6 upper ends enters interior discharge of centre bore of this instrument; When if the seal of piston 2 bottoms is in the bottom of lower house 7 inlet openings, then this moment, this instrument was in closed condition, and the inlet opening of lower house 7 is sealed.
When the down-hole string of horizontal well changes layer production, add hydraulic pressure from this tool focus hole, track controlling organization 1 is descending compression spring energy agency 8 under action of hydraulic force.Steel ball 4 is descending under the effect of little spring 3 and hydraulic pressure, the sealing fluid discharge orifice, and making between branch fluid 6 and the lower house 7 does not have hydraulic coupling, and piston 2 lower seal can come downwards to the below of lower house 7 inlet openings smoothly.Pressure release this moment, track controlling organization 1 is up under the effect of spring energy agency 8, track controlling organization 1 carries out the conversion of track simultaneously, thereby makes the seal on the piston 2 still be in the lower position of lower house 7 inlet openings, and then realizes closing motion of the present utility model.When once suppress again, during pressure release, track controlling organization 1 transfer trajectory, thus make the seal on the piston 2 be in the upper position of lower house 7 inlet openings, and then realize the action that the hydraulic pressure seam change switch is opened.This instrument can realize repeatedly opening conversion with closed condition by pressurization, pressure release.
Construction sequence:
Connect other instrument and connected tubing string, make the corresponding destination layer of horizontal well hydraulic pressure seam change switch in the down-hole string, the utility model at this moment and down-hole string all are levels, press the normal procedure construction.Regulate open and close state of the present utility model during construction, be lowered to design attitude.Below fashionable, this instrument is that open mode is an example, well head connects the pump truck pipeline in the time of need changing layer, full well is suppressed to operating pressure and was not fallen in steady 10 minutes, illustrates that this instrument is closed, and changes layer success, can produce.

Claims (6)

1, horizontal well hydraulic pressure seam change switch, comprise track controlling organization (1), lower house (7) and spring energy agency (8), lower house (7) is provided with liquid flow hole, it is characterized in that this instrument also is provided with diffluence system, diffluence system is installed in the lower house (7), is positioned between track controlling organization (1) and the spring energy agency (8).
2, horizontal well hydraulic pressure seam change switch according to claim 1 is characterized in that diffluence system comprises little spring (3), steel ball (4), spring housing (5) and divides fluid (6), and little spring (3) is contained in the spring housing (5); Steel ball (4) is positioned at the below of little spring (3).
3, horizontal well hydraulic pressure seam change switch according to claim 2 is characterized in that spring housing (5) is provided with centre bore, the spring eye that distributes on the body wall of periphery, interior dress little spring (3).
4, horizontal well hydraulic pressure seam change switch according to claim 2, it is characterized in that branch fluid (6) is provided with centre bore, liquid flow hole distributes on the body wall of periphery, the design of liquid flow hole upper end is in the upper surface of a minute fluid (6), the lower end is positioned on the body wall of the branch fluid (6) below the piston (2), divide on the cylindrical of liquid flow hole below, fluid (6) lower end, seal is installed.
5, horizontal well hydraulic pressure seam change switch according to claim 2 is characterized in that the number of hole count, little spring (3) and branch fluid (6) liquid flow hole on the corresponding spring housing of number (5) of steel ball (4).
6, horizontal well hydraulic pressure seam change switch according to claim 1 is characterized in that piston (2) the bottom cylindrical of track controlling organization (1) is installed seal.
CNU2009200223729U 2009-02-25 2009-02-25 Horizontal well hydraulic layer-change switch Expired - Fee Related CN201358754Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200223729U CN201358754Y (en) 2009-02-25 2009-02-25 Horizontal well hydraulic layer-change switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200223729U CN201358754Y (en) 2009-02-25 2009-02-25 Horizontal well hydraulic layer-change switch

Publications (1)

Publication Number Publication Date
CN201358754Y true CN201358754Y (en) 2009-12-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2009200223729U Expired - Fee Related CN201358754Y (en) 2009-02-25 2009-02-25 Horizontal well hydraulic layer-change switch

Country Status (1)

Country Link
CN (1) CN201358754Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926722A (en) * 2012-10-29 2013-02-13 中国石油化工股份有限公司 Layering oil production system
CN103266867A (en) * 2013-05-31 2013-08-28 中国石油集团川庆钻探工程有限公司 Horizontal well water exploration valve
CN104213884A (en) * 2013-06-05 2014-12-17 中国石油天然气股份有限公司 Pumping well rod-controlled layer-changing switch and layer-changing oil production method thereof
CN108825168A (en) * 2018-08-08 2018-11-16 东营市昌瑞石油机械配件有限责任公司 A kind of liquid flow control valve
CN112177575A (en) * 2019-07-02 2021-01-05 中国石油化工股份有限公司 Sand-proof hydraulic layer-changing mining pipe column and using method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926722A (en) * 2012-10-29 2013-02-13 中国石油化工股份有限公司 Layering oil production system
CN102926722B (en) * 2012-10-29 2015-06-17 中国石油化工股份有限公司 Layering oil production system
CN103266867A (en) * 2013-05-31 2013-08-28 中国石油集团川庆钻探工程有限公司 Horizontal well water exploration valve
CN103266867B (en) * 2013-05-31 2015-10-21 中国石油集团川庆钻探工程有限公司 Horizontal well water exploration valve
CN104213884A (en) * 2013-06-05 2014-12-17 中国石油天然气股份有限公司 Pumping well rod-controlled layer-changing switch and layer-changing oil production method thereof
CN104213884B (en) * 2013-06-05 2016-05-11 中国石油天然气股份有限公司 Pumping well rod-controlled layer-changing switch and layer-changing oil production method thereof
CN108825168A (en) * 2018-08-08 2018-11-16 东营市昌瑞石油机械配件有限责任公司 A kind of liquid flow control valve
CN112177575A (en) * 2019-07-02 2021-01-05 中国石油化工股份有限公司 Sand-proof hydraulic layer-changing mining pipe column and using method
CN112177575B (en) * 2019-07-02 2023-12-29 中国石油化工股份有限公司 Sand mould-proof hydraulic layer-changing exploitation pipe column and use method thereof

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091209

Termination date: 20150225

EXPY Termination of patent right or utility model