CN102392618A - Pressure difference opening self-locking sliding sleeve - Google Patents
Pressure difference opening self-locking sliding sleeve Download PDFInfo
- Publication number
- CN102392618A CN102392618A CN2011103861780A CN201110386178A CN102392618A CN 102392618 A CN102392618 A CN 102392618A CN 2011103861780 A CN2011103861780 A CN 2011103861780A CN 201110386178 A CN201110386178 A CN 201110386178A CN 102392618 A CN102392618 A CN 102392618A
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- Prior art keywords
- sliding sleeve
- cylinder sliding
- urceolus
- hydraulic cylinder
- fluid cylinder
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- 239000012530 fluid Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to the technical field of horizontal well open hole completion and staged fracturing, in particular to a differential pressure opening self-locking sliding sleeve. The device's urceolus upper end is opened there is circulation channel, be equipped with the hydraulic cylinder sliding sleeve in top connection and the urceolus, fix and sealed circulation channel through the shear pin between hydraulic cylinder sliding sleeve and the urceolus, hydraulic cylinder sliding sleeve outside cover is equipped with the spring, the cooperation installation switching round pin on the lower extreme step of hydraulic cylinder sliding sleeve, the protruding card in the inner wall step department of urceolus of outer end of switching round pin, the spring lower extreme top is by compression state on the inclined plane of switching round pin, when the switching round pin landing is to the groove on the hydraulic cylinder sliding sleeve step, the spring lower extreme can push up on the lower extreme step of hydraulic cylinder sliding sleeve. The invention realizes the monopoly of foreign open hole well completion staged fracturing technology of the horizontal well, and reduces the implementation cost of the process. The defects that the existing pressure opening sliding sleeve belongs to foreign imported tools and the process implementation cost is high are overcome.
Description
Technical field:
The present invention relates to a kind of horizontal well barefoot completion and staged fracturing technical field, particularly a kind of pressure reduction is opened the self-locking sliding sleeve.
Background technology:
Present employed opened by pressure sliding sleeve belongs to external import instrument, and sends special messenger's execute-in-place to be implemented.Because horizontal well barefoot completion staged fracturing technology is in the starting stage, the domestic kit that does not also have special use, it is very necessary to develop pressure reduction unlatching self-locking sliding sleeve instrument.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of pressure reduction and opens the self-locking sliding sleeve, and this sliding sleeve has realized breaking away from external monopolization to horizontal well barefoot completion staged fracturing technology, reduces the process implementing cost.Overcome existing opened by pressure sliding sleeve and belonged to external import instrument, the deficiency that the process implementing cost is high.
The technical scheme that the present invention taked is: a kind of pressure reduction is opened the self-locking sliding sleeve, comprises top connection, urceolus and lower contact; Top connection, urceolus, lower contact be buckle in order; Urceolus upper end has circulation canal, and the fluid cylinder sliding sleeve is housed in top connection and urceolus, fixes and seal circulation canal between fluid cylinder sliding sleeve and the urceolus through shear pin; The fluid cylinder sliding sleeve outside is set with spring; Conversion pin cooperate to be installed on the lower end step of fluid cylinder sliding sleeve, and the outer end convexity of conversion pin is stuck in the inwall step place of urceolus, and the spring lower end withstands on the inclined-plane of conversion pin and is confined state; When conversion pin was slipped to the groove of fluid cylinder sliding sleeve step upper end, the spring lower end can be pushed up on the lower end step of fluid cylinder sliding sleeve.
The invention has the beneficial effects as follows: the present invention is because the mode that has adopted fluid cylinder sliding sleeve, conversion pin, spring to cooperatively interact; Thereby has a function that satisfies horizontal well barefoot completion and staged fracturing, produces the technical requirements of each link; Only need the ground hydraulic complete opening that just can make tool, and realize self-locking synchronously, guarantee pressure break and produce the unimpeded of passage; Break away from external monopolization, reduce the process implementing cost horizontal well barefoot completion staged fracturing technology.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment:
Shown in accompanying drawing, a kind of pressure reduction is opened the self-locking sliding sleeve, comprises top connection 1, urceolus 2 and lower contact 6; Top connection 1, urceolus 2, lower contact 6 be buckle in order; Urceolus 2 upper ends have circulation canal, in top connection 1 and urceolus 2, fluid cylinder sliding sleeve 3 are housed, and fix and seal circulation canal through shear pin between fluid cylinder sliding sleeve 3 and the urceolus 2; Fluid cylinder sliding sleeve 3 outsides are set with spring 4; Conversion pin 5 cooperate to be installed on the lower end step of fluid cylinder sliding sleeve 3, and the outer end convexity of conversion pin 5 is stuck in the inwall step place of urceolus 2, and spring 4 lower ends withstand on the inclined-plane of conversion pin 5 and are confined state; When conversion pin 5 was slipped to the groove of fluid cylinder sliding sleeve 3 steps upper end, spring 4 lower ends can be pushed up on the lower end step of fluid cylinder sliding sleeve 3.
The present invention is connected with completion tubular column through the tubing thread of top connection 1, lower contact 6.When tubing string internal pressure during less than the instrument opening pressure, 3 pairs of circulation canals of fluid cylinder sliding sleeve have good sealing effectiveness, guarantee other Job Operations demands of completion tubular column; When the tubing string internal pressure surpasses the instrument opening pressure; It is descending that shear pin is cut off fluid cylinder sliding sleeve 3; When conversion pin 5 was slipped to the groove of fluid cylinder sliding sleeve 3 steps upper end, pushed up on the lower end step of fluid cylinder sliding sleeve 3 spring 4 lower ends, and elastic force discharges and promotes fluid cylinder sliding sleeve 3 and continues descending; Fluid cylinder sliding sleeve 3 is realized opening self-locking, and circulation canal is opened fully.
It is understandable that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (1)
1. a pressure reduction is opened the self-locking sliding sleeve, comprises top connection (1), urceolus (2) and lower contact (6); It is characterized in that: top connection (1), urceolus (2), lower contact (6) be buckle in order; Urceolus (2) upper end has circulation canal; In top connection (1) and urceolus (2), fluid cylinder sliding sleeve (3) is housed; Fix and seal circulation canal through shear pin between fluid cylinder sliding sleeve (3) and the urceolus (2), fluid cylinder sliding sleeve (3) outside is set with spring (4), cooperates on the lower end step of fluid cylinder sliding sleeve (3) conversion pin (5) is installed; The outer end convexity of conversion pin (5) is stuck in the inwall step place of urceolus (2); Spring (4) lower end withstands on the inclined-plane of conversion pin (5) and is confined state, and when conversion pin (5) was slipped to the groove of fluid cylinder sliding sleeve (3) step upper end, spring (4) lower end can be pushed up on the lower end step of fluid cylinder sliding sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110386178.0A CN102392618B (en) | 2011-11-29 | 2011-11-29 | Pressure difference opening self-locking sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110386178.0A CN102392618B (en) | 2011-11-29 | 2011-11-29 | Pressure difference opening self-locking sliding sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392618A true CN102392618A (en) | 2012-03-28 |
| CN102392618B CN102392618B (en) | 2014-10-01 |
Family
ID=45859988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110386178.0A Expired - Fee Related CN102392618B (en) | 2011-11-29 | 2011-11-29 | Pressure difference opening self-locking sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392618B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733786A (en) * | 2012-07-04 | 2012-10-17 | 湖南唯科拓石油科技服务有限公司 | Sliding sleeve for mining oil-gas well in layering manner |
| CN102979481A (en) * | 2012-12-18 | 2013-03-20 | 中国石油天然气股份有限公司 | Anti-blocking constant pressure switch of water injection string |
| CN103321628A (en) * | 2013-06-09 | 2013-09-25 | 中国石油化工股份有限公司 | Electric intelligent switching sliding sleeve |
| CN103334733A (en) * | 2013-07-18 | 2013-10-02 | 中国石油集团长城钻探工程有限公司 | Sliding sleeve for fast fracturing |
| CN104088614A (en) * | 2014-06-30 | 2014-10-08 | 中国石油集团川庆钻探工程有限公司 | Excitation type differential pressure sliding sleeve |
| CN104100232A (en) * | 2013-04-15 | 2014-10-15 | 中国石油化工股份有限公司 | Double-piston hydraulic switch and application thereof |
| CN104854301A (en) * | 2013-09-20 | 2015-08-19 | 弗洛泊威尔技术公司 | System and method for fracturing of oil and gas wells |
| CN107143307A (en) * | 2017-07-20 | 2017-09-08 | 中国石油化工股份有限公司 | A kind of sliding sleeve fracturing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4602684A (en) * | 1984-11-13 | 1986-07-29 | Hughes Tool Company | Well cementing valve |
| CN2284296Y (en) * | 1997-01-30 | 1998-06-17 | 胜利石油管理局胜利采油厂 | Oil discharger of electrical submersible pump |
| CN201381812Y (en) * | 2009-03-13 | 2010-01-13 | 东营市兆鑫工贸有限责任公司 | Well flushing tool |
| CN202000962U (en) * | 2010-12-17 | 2011-10-05 | 中国石油集团长城钻探工程有限公司 | Control sliding sleeve switch for segmented exploitation of oil and gas well |
-
2011
- 2011-11-29 CN CN201110386178.0A patent/CN102392618B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4602684A (en) * | 1984-11-13 | 1986-07-29 | Hughes Tool Company | Well cementing valve |
| CN2284296Y (en) * | 1997-01-30 | 1998-06-17 | 胜利石油管理局胜利采油厂 | Oil discharger of electrical submersible pump |
| CN201381812Y (en) * | 2009-03-13 | 2010-01-13 | 东营市兆鑫工贸有限责任公司 | Well flushing tool |
| CN202000962U (en) * | 2010-12-17 | 2011-10-05 | 中国石油集团长城钻探工程有限公司 | Control sliding sleeve switch for segmented exploitation of oil and gas well |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733786A (en) * | 2012-07-04 | 2012-10-17 | 湖南唯科拓石油科技服务有限公司 | Sliding sleeve for mining oil-gas well in layering manner |
| CN102979481A (en) * | 2012-12-18 | 2013-03-20 | 中国石油天然气股份有限公司 | Anti-blocking constant pressure switch of water injection string |
| CN104100232A (en) * | 2013-04-15 | 2014-10-15 | 中国石油化工股份有限公司 | Double-piston hydraulic switch and application thereof |
| CN103321628A (en) * | 2013-06-09 | 2013-09-25 | 中国石油化工股份有限公司 | Electric intelligent switching sliding sleeve |
| CN103321628B (en) * | 2013-06-09 | 2015-10-07 | 中国石油化工股份有限公司 | Intelligent electric switching sliding sleeve |
| CN103334733A (en) * | 2013-07-18 | 2013-10-02 | 中国石油集团长城钻探工程有限公司 | Sliding sleeve for fast fracturing |
| CN104854301A (en) * | 2013-09-20 | 2015-08-19 | 弗洛泊威尔技术公司 | System and method for fracturing of oil and gas wells |
| CN104854301B (en) * | 2013-09-20 | 2018-09-25 | 弗洛泊威尔技术公司 | System and method for pressure break oil and natural gas well |
| CN104088614A (en) * | 2014-06-30 | 2014-10-08 | 中国石油集团川庆钻探工程有限公司 | Excitation type differential pressure sliding sleeve |
| CN107143307A (en) * | 2017-07-20 | 2017-09-08 | 中国石油化工股份有限公司 | A kind of sliding sleeve fracturing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102392618B (en) | 2014-10-01 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20141129 |
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| EXPY | Termination of patent right or utility model |