CN203050662U - Hydraulic sliding sleeve switch - Google Patents

Hydraulic sliding sleeve switch Download PDF

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Publication number
CN203050662U
CN203050662U CN 201220665439 CN201220665439U CN203050662U CN 203050662 U CN203050662 U CN 203050662U CN 201220665439 CN201220665439 CN 201220665439 CN 201220665439 U CN201220665439 U CN 201220665439U CN 203050662 U CN203050662 U CN 203050662U
Authority
CN
China
Prior art keywords
tube
linkage
sliding sleeve
unicom
over pipe
Prior art date
Application number
CN 201220665439
Other languages
Chinese (zh)
Inventor
曲绍琨
王中华
马宝龙
曲哲
杨永刚
荣雷
刘林涛
相辉
Original Assignee
东营市兆鑫工贸有限责任公司
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 东营市兆鑫工贸有限责任公司 filed Critical 东营市兆鑫工贸有限责任公司
Priority to CN 201220665439 priority Critical patent/CN203050662U/en
Application granted granted Critical
Publication of CN203050662U publication Critical patent/CN203050662U/en

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Abstract

The utility model discloses a hydraulic sliding sleeve switch, the lower portion of an upper connector is connected with upper threads of an outer tube, the upper portion of an upper linkage tube is inserted into the lower portion of the upper connector, a linkage sliding sleeve is installed between the outer tube and the upper linkage tube, the linkage sliding sleeve is connected on the outer tube through control shear pins, an inner linkage hole is formed in the upper linkage tube, an outer linkage hole is formed in the outer tube, the linkage sliding sleeve covers the inner linkage hole and the outer linkage hole, a linkage groove is formed in the upper portion of the linkage sliding sleeve, the lower portion of the upper linkage tube is connected with the upper portion of a lower linkage tube, and a pressure transmission hole is formed in the position, corresponding to a hohlraum, on the upper linkage tube, so that the pressure in the upper linkage tube can be transmitted to a diameter-changeable shoulder which is arranged inside the linkage sliding sleeve. A piston is installed on the lower portion of the linkage sliding sleeve, a linkage hole is formed in the lower linkage tube and located above the piston, the lower portion of the outer tube is connected with the upper portion of the lower connector, the lower portion of the lower linkage tube is inserted into the lower connector, so that the upper linkage tube can be communicated with the outer tube, tubular columns for pressing fracture are communicated with ground levels needing to be fractured in a pressed mode, construction processes are reduced, the upper linkage tube can also be closed after being communicated with the outer tube, and pressing fracture layer by layer is achieved.

Description

The fluid pressure type sliding sleeve switch

Technical field

The utility model is the downhole tool that the oil field compression fracture stratum is used, and is a kind of fluid pressure type sliding sleeve switch.

Background technology

To carry out pressure break to the low stratum of permeability during oil field development, increase the connectivity on stratum, improve output.The layer that has needs pressure break, and the layer that has does not need pressure break, thus to be lowered to the separate stratum fracfturing tubing string, each layer separately.Being lowered to the separate stratum fracfturing tubing string will separate with the pressure break packer, and the pressure break packer need be suppressed the seat envelope.So the separate stratum fracfturing tubing string must be airtight, in airtight tubing string, suppress earlier, make pressure break packer work closed casing, separate on the stratum that needs are separated, and then with separate stratum fracfturing tubing string and the stratum UNICOM that needs pressure break, could squeeze into fracturing fluid in the stratum pressure break is carried out on the stratum.Be that UNICOM is suppressed in pitching step by step with the separate stratum fracfturing tubing string with needing the way of the stratum UNICOM of pressure break at present, this that the separate stratum fracfturing tubing string is many with the way operation of the stratum UNICOM that needs pressure break, construction is complicated, and the engineering time is long, and after sliding sleeve is opened, can not close again, can not carry out pressure break successively.

Summary of the invention

The purpose of this utility model provides a kind of fluid pressure type sliding sleeve switch, can make fracturing string and the stratum UNICOM that needs pressure break, reduces working procedure, simplifies construction, reduces the engineering time, and can close again, realizes pressure break successively.

The purpose of this utility model is achieved in that and comprises top connection, the control shear pin, UNICOM's sliding sleeve, last cross over pipe, following cross over pipe, piston, outer tube, lower contact, the top connection bottom is threaded with outer tube top, insert in the top connection bottom on last cross over pipe top, UNICOM's sliding sleeve is installed between outer tube and the last cross over pipe, UNICOM's sliding sleeve is connected on the outer tube by the control shear pin, interior linked hole is arranged on the last cross over pipe, outer linked hole is arranged on the outer tube, interior linked hole, outer linked hole is covered by UNICOM's sliding sleeve, UNICOM's groove is arranged at UNICOM sliding sleeve top, the reducing shoulder of UNICOM sliding sleeve inside makes between UNICOM's sliding sleeve and the last cross over pipe and forms annular space, last cross over pipe bottom is connected with following cross over pipe top, with the annular space corresponding position pressure transmission hole is arranged on the last cross over pipe, pressure in the cross over pipe can be delivered on the reducing shoulder of UNICOM sliding sleeve inside, piston is installed in UNICOM sliding sleeve bottom, on the following cross over pipe linked hole is arranged, linked hole is on the piston, pressure in the cross over pipe can be delivered on the piston upper surface, the outer tube bottom is connected with lower contact top, and insert in the lower contact following cross over pipe bottom.

The beneficial effects of the utility model are: can make cross over pipe and outer tube UNICOM, can make fracturing string and the stratum UNICOM that needs pressure break, reduce working procedure, simplify construction, reduce the engineering time, close again after also making cross over pipe and outer tube UNICOM, realize pressure break successively.

Description of drawings

Accompanying drawing is structure assembling drawing of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described.

As shown in the figure, embodiment of the present utility model comprises top connection 1, control shear pin 5, UNICOM's sliding sleeve 6, last cross over pipe 8, following cross over pipe 9, piston 11, outer tube 12, lower contact 13, top connection 1 bottom is threaded with outer tube 12 tops, insert in top connection 1 bottom on last cross over pipe 8 tops, UNICOM's sliding sleeve 6 is installed between outer tube 12 and the last cross over pipe 8, UNICOM's sliding sleeve 6 is connected on the outer tube 12 by control shear pin 5, interior linked hole 3 is arranged on the last cross over pipe 8, outer linked hole 4 is arranged on the outer tube 12, interior linked hole 3, outer linked hole 4 is covered by UNICOM's sliding sleeve 6, UNICOM's groove 2 is arranged at UNICOM's sliding sleeve 6 tops, the reducing shoulder of UNICOM's sliding sleeve 6 inside makes and forms annular space 14 between UNICOM's sliding sleeve 6 and the last cross over pipe 8, last cross over pipe 8 bottoms are connected with following cross over pipe 9 tops, with annular space 14 corresponding positions pressure transmission hole 7 is arranged on the last cross over pipe 8, pressure in the cross over pipe can be delivered on the reducing shoulder of UNICOM's sliding sleeve 6 inside, piston 11 is installed in UNICOM's sliding sleeve 6 bottoms, on the following cross over pipe 9 linked hole 10 is arranged, linked hole 10 is on the piston 11, pressure in the cross over pipe 9 can be delivered on piston 11 upper surfaces, outer tube 12 bottoms are connected with lower contact 13 tops, and insert in the lower contact 13 following cross over pipe 9 bottoms.

When needing fracturing string and needing the stratum UNICOM of pressure break, the instrument of being lowered to seals pressure transmission hole 7, in fracturing string, suppress, pressure is delivered on piston 11 upper surfaces from linked hole 10, control shear pin 5 is cut off, and UNICOM's sliding sleeve 6 is descending, and UNICOM's groove 2 on UNICOM's sliding sleeve 6 tops aligns with interior linked hole 3, outer linked hole 4, make fracturing string and the stratum UNICOM that needs pressure break, can carry out pressure break to the stratum.Need fracturing string and the stratum that needs pressure break not during UNICOM, the instrument that will be lowered to seals linked hole 10, in fracturing string, suppress, pressure is delivered on the reducing shoulder of UNICOM's sliding sleeve 6 from pressure transmission hole 7, UNICOM's sliding sleeve 6 up interior linked holes 3, outer linked hole 4 are capped again, fracturing string and the stratum that needs pressure break be UNICOM not, can carry out pressure break to other stratum.

Claims (1)

1. fluid pressure type sliding sleeve switch, it is characterized in that: comprise top connection (1), control shear pin (5), UNICOM's sliding sleeve (6), last cross over pipe (8), following cross over pipe (9), piston (11), outer tube (12), lower contact (13), top connection (1) bottom is threaded with outer tube (12) top, insert in top connection (1) bottom on last cross over pipe (8) top, UNICOM's sliding sleeve (6) is installed between outer tube (12) and the last cross over pipe (8), UNICOM's sliding sleeve (6) is connected on the outer tube (12) by control shear pin (5), interior linked hole (3) is arranged on the last cross over pipe (8), outer linked hole (4) is arranged on the outer tube (12), interior linked hole (3), outer linked hole (4) is covered by UNICOM's sliding sleeve (6), UNICOM's groove (2) is arranged at UNICOM's sliding sleeve (6) top, the inner reducing shoulder of UNICOM's sliding sleeve (6) makes between UNICOM's sliding sleeve (6) and the last cross over pipe (8) and forms annular space (14), last cross over pipe (8) bottom is connected with following cross over pipe (9) top, last cross over pipe (8) is gone up and there is pressure transmission hole (7) annular space (14) corresponding position, pressure in the cross over pipe (8) can be delivered on the inner reducing shoulder of UNICOM's sliding sleeve (6), piston (11) is installed in UNICOM's sliding sleeve (6) bottom, linked hole (10) is arranged on the following cross over pipe (9), linked hole (10) is on the piston (11), pressure in the cross over pipe (9) can be delivered on piston (11) upper surface, outer tube (12) bottom is connected with lower contact (13) top, and insert in the lower contact (13) following cross over pipe (9) bottom.
CN 201220665439 2012-11-26 2012-11-26 Hydraulic sliding sleeve switch CN203050662U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220665439 CN203050662U (en) 2012-11-26 2012-11-26 Hydraulic sliding sleeve switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220665439 CN203050662U (en) 2012-11-26 2012-11-26 Hydraulic sliding sleeve switch

Publications (1)

Publication Number Publication Date
CN203050662U true CN203050662U (en) 2013-07-10

Family

ID=48733627

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220665439 CN203050662U (en) 2012-11-26 2012-11-26 Hydraulic sliding sleeve switch

Country Status (1)

Country Link
CN (1) CN203050662U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806867A (en) * 2014-02-10 2014-05-21 中国石油集团西部钻探工程有限公司 Flow-controllable sliding sleeve
CN104234684A (en) * 2014-09-15 2014-12-24 能新科(西安)油气技术有限公司 Pressure-controlled opening type fracturing sliding sleeve
CN104563957A (en) * 2014-12-24 2015-04-29 中国石油天然气集团公司 Horizontal well cementing sleeve and method for measuring well cementing quality
CN107288602A (en) * 2017-05-31 2017-10-24 中国石油天然气股份有限公司 A kind of automatically controlled toe-end fracturing sliding bush
CN108729895A (en) * 2017-04-18 2018-11-02 中国石油天然气股份有限公司 A kind of casing ball seat Multistage fracturing tool

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806867A (en) * 2014-02-10 2014-05-21 中国石油集团西部钻探工程有限公司 Flow-controllable sliding sleeve
CN103806867B (en) * 2014-02-10 2017-01-11 中国石油集团西部钻探工程有限公司 Flow-controllable sliding sleeve
CN104234684A (en) * 2014-09-15 2014-12-24 能新科(西安)油气技术有限公司 Pressure-controlled opening type fracturing sliding sleeve
CN104563957A (en) * 2014-12-24 2015-04-29 中国石油天然气集团公司 Horizontal well cementing sleeve and method for measuring well cementing quality
CN104563957B (en) * 2014-12-24 2017-07-07 中国石油天然气集团公司 Horizontal cementing sleeve pipe and the method for surveying cementing quality
CN108729895A (en) * 2017-04-18 2018-11-02 中国石油天然气股份有限公司 A kind of casing ball seat Multistage fracturing tool
CN107288602A (en) * 2017-05-31 2017-10-24 中国石油天然气股份有限公司 A kind of automatically controlled toe-end fracturing sliding bush
CN107288602B (en) * 2017-05-31 2019-11-12 中国石油天然气股份有限公司 A kind of automatically controlled toe-end fracturing sliding bush

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20131126