CN201843582U - Hydraulic sliding sleeve for well completion - Google Patents
Hydraulic sliding sleeve for well completion Download PDFInfo
- Publication number
- CN201843582U CN201843582U CN2010205800886U CN201020580088U CN201843582U CN 201843582 U CN201843582 U CN 201843582U CN 2010205800886 U CN2010205800886 U CN 2010205800886U CN 201020580088 U CN201020580088 U CN 201020580088U CN 201843582 U CN201843582 U CN 201843582U
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- sliding sleeve
- urceolus
- inner sliding
- hydraulic
- joint ring
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Abstract
A hydraulic sliding sleeve for well completion is applied to the completion construction of an oil gas well in an oil patch. A lower joint is in threaded connection with the lower end of an outer cylinder, and an inner sliding sleeve is arranged in the interior space of an upper joint, the outer cylinder, and the lower joint; two hydraulic passages parallel to a center line are arranged at the upper part of the outer cylinder, and are communicated with an upper hydraulic cavity and a lower hydraulic cavity respectively; a sealing ring III is fixed at the lower end of the lower hydraulic cavity and in the ring-shaped space between the outer cylinder and the inner sliding sleeve; a cylinder-shaped positioning sleeve is arranged at the lower part of the sealing ring III; a sealing ring IV is fixed at the upper end of the lower joint; strip-shaped holes are uniformly distributed on the walls of the outer cylinder and the positioning sleeve; and the strip-shaped holes on the outer cylinder and that on the positioning sleeve are opposite to each other; and holes are uniformly distributed on the wall at the lower part of the inner sliding sleeve. The hydraulic sliding sleeve has the effects that the passage between the hydraulic sliding sleeve and the ring-shaped space of the oil well can be controlled to open, and one or more reservoir beds of the oil well can be closed, opened or throttled to adjust the pressure and fluid flow velocity among the reservoir beds.
Description
Technical field
The utility model relates to oil and gas wells in oil fields completion field, and particularly a kind of completion construction down-hole special tool is the hydraulic pressure sliding sleeve on a kind of completion tubular column.
Background technology
At present, same well different layers position or a lot of in the oilfield development process at home with the moisture different situation of one deck different layers section, conventional completion technique can't be adjusted the producing zone position, can not control the water gas coning of commingling production, and exploitation effect is poor.In addition, a lot of oilfield exploitations have entered late high water content period, and the oil bearing formation property gap is big, and the ordinary production that can not satisfy high water-cut well because of conventional completion technique requires to cause closing well.Done a large amount of research in order to solve the domestic and international personnel of above these problems, the intelligent completion technique that someone proposes can responding curve of well be adjusted producing zone position, the gas coning of commingling production control water, realize separate zone production, divide the well exploitation, the exploitation rate of control different layers position or different wells, the overall efficiency of the well of improving the standard/Multilateral Wells exploitation.Sliding sleeve is the key tool in the intelligent completion, the predominant use of sliding sleeve be close, unlatching or the one or more reservoirs of throttling, or remove to adjust pressure between reservoir, rate of flow of fluid etc.The domestic intelligent completion system that does not also have at present moulding has just begun to carry out some preliminary researchs in intelligent well technologies, with its approximate technology mainly be separate zone production and some technology such as sliding sleeve by steel wire or coiled tubing switch.
The utility model content
The purpose of this utility model is: a kind of hydraulic pressure sliding sleeve that is used for completion is provided, is used for that completion is closed, unlatching or the one or more reservoirs of throttling, adjust pressure, rate of flow of fluid between reservoir, improve ultimate recovery.
The technical solution adopted in the utility model is: the hydraulic pressure sliding sleeve that is used for completion, mainly form by top connection, urceolus, joint ring I, inner sliding sleeve, joint ring II, seal stopper ring, joint ring III, positioning sleeve, dog screw, joint ring IV and lower contact, the lower end of the cylindrical shape top connection urceolus that is threaded, it is characterized in that: the lower contact that is threaded in the lower end of urceolus has an inner sliding sleeve in top connection, urceolus and lower contact inner space; Between outer tube inner wall and inner sliding sleeve outer wall, annular space is arranged, on the outer wall of inner sliding sleeve, annular piston is arranged, in the annular space of the position of annular piston between urceolus and inner sliding sleeve, annular piston is divided into hydraulic cavities and lower hydraulic pressure chamber with the annular space between urceolus and the inner sliding sleeve; Heavy wall section top on urceolus top is drilled with two hydraulic channels parallel with center line, and hydraulic channel is communicated with last hydraulic cavities and lower hydraulic pressure chamber respectively, is fixed with hydraulic joint on urceolus, and hydraulic joint is communicated with hydraulic channel respectively; Hydraulic joint can connect 1/4 " hydraulic line to ground, slide up and down by applying the hydraulic drive inner sliding sleeve.In the lower end of lower hydraulic pressure chamber and the annular space between urceolus and inner sliding sleeve, be fixed with joint ring III, in the bottom of joint ring III and the annular space between urceolus and inner sliding sleeve, the cylindrical shape positioning sleeve is arranged, positioning sleeve is fixed on the inwall of urceolus by dog screw; In the upper end of lower contact and the annular space between urceolus and inner sliding sleeve, be fixed with joint ring IV; Be evenly distributed with bar hole on the wall of urceolus and positioning sleeve, the bar hole on the urceolus is relative with the bar hole of positioning sleeve; On the inner sliding sleeve lower part wall, be evenly distributed with the hole; After inner sliding sleeve upwards slided, the bar hole of urceolus and positioning sleeve and the hole on the inner sliding sleeve were communicated with, and outer liquid can enter in the hydraulic pressure sliding sleeve by urceolus, positioning sleeve and inner sliding sleeve.
Cai in order to make inner sliding sleeve only removable under the certain pressure effect, pawl in the oriented outer lug in the two ends of inner sliding sleeve, the annular claw groove is arranged on the inwall of top connection, the annular claw groove is arranged on the inwall of lower contact, when inner sliding sleeve moved up, the pawl of inner sliding sleeve upper end projection opened and falls into and has in the annular claw groove on the top connection inwall; When inner sliding sleeve moved down, the pawl of inner sliding sleeve lower end projection opens and falls on the lower contact inwall to be had in the annular claw groove.
Annular piston bottom at inner sliding sleeve is fixed with joint ring II and seal stopper ring, in joint ring II and the seal stopper ring annular space between urceolus and inner sliding sleeve.
In order to improve sealing, in the lower end of top connection and joint ring I arranged between urceolus and inner sliding sleeve.
Described bar hole is a slot, and the long limit of bar hole is parallel with center line.
The beneficial effects of the utility model: the utility model is used for the hydraulic pressure sliding sleeve of completion, by upwards hydraulic cavities and lower hydraulic pressure chamber pump into highly pressurised liquid, sliding up and down of inner sliding sleeve, realize controlledly opening the passage of hydraulic pressure sliding sleeve inside and oil well annular space, realization is closed, unlatching or the one or more reservoirs of throttling oil well, adjusts pressure, flow rate of fluid between reservoir.This device has characteristics such as simple in structure, easy to operate.
Description of drawings
Fig. 1 is hydraulic pressure sliding sleeve the first half structural profile schematic diagram that the utility model is used for completion.
Fig. 2 is the hydraulic pressure sliding sleeve the latter half structural profile schematic diagram that is used for completion.
Among the figure, 1. box cupling, 2. top connection, 3. urceolus, 4. joint ring I, 5. inner sliding sleeve, 6. joint ring II, 7. seal stopper ring, 8. joint ring III, 9. positioning sleeve, 10. dog screw, 11. joint ring IV, 12. lower contacts.
The specific embodiment
Embodiment 1: with a hydraulic pressure sliding sleeve that is used for completion is example, and the utility model is described in further detail.
Consult Fig. 1 and Fig. 2.The utility model is used for the hydraulic pressure sliding sleeve of completion, mainly is made up of top connection 2, urceolus 3, joint ring I 4, inner sliding sleeve 5, joint ring II 6, seal stopper ring 7, joint ring III8, positioning sleeve 9, dog screw 10, joint ring IV11 and lower contact 12.The box cupling 1 that is threaded in the upper end of top connection 2, the lower end of cylindrical shape top connection 2 urceolus 3 that is threaded.The lower contact 12 that is threaded in the lower end of urceolus 3 has an inner sliding sleeve 5 in top connection 2, urceolus 3 and lower contact 12 inner spaces; In the lower end of top connection 2 and between urceolus 3 and inner sliding sleeve 5, joint ring I4 is arranged.Between urceolus 3 inwalls and inner sliding sleeve 5 outer walls, annular space is arranged, on the outer wall of inner sliding sleeve 5, annular piston is arranged, in the annular space of the position of annular piston between urceolus 3 and inner sliding sleeve 5, annular piston is divided into hydraulic cavities and lower hydraulic pressure chamber with the annular space between urceolus 3 and the inner sliding sleeve 5; Be fixed with one group of joint ring II 6 and a seal stopper ring 7 in the annular piston bottom of inner sliding sleeve 5, in joint ring II6 and seal stopper ring 7 annular space between urceolus 3 and inner sliding sleeve 5.Heavy wall section top on urceolus 3 tops is drilled with two hydraulic channels parallel with center line, and hydraulic channel is communicated with last hydraulic cavities and lower hydraulic pressure chamber respectively, is fixed with hydraulic joint on urceolus 3, and hydraulic joint is communicated with hydraulic channel respectively; In the lower end of lower hydraulic pressure chamber and the annular space between urceolus 3 and inner sliding sleeve 5, be fixed with joint ring III8, in the bottom of joint ring III8 and the annular space between urceolus 3 and inner sliding sleeve 5, cylindrical shape positioning sleeve 9 is arranged, positioning sleeve 9 is fixed on the inwall of urceolus 3 by four dog screws 10; In the upper end of lower contact 12 and the annular space between urceolus 3 and inner sliding sleeve 5, be fixed with joint ring IV11; Be evenly distributed with six bar holes on the wall of urceolus 3 and positioning sleeve 9 respectively, the bar hole on the urceolus 3 is relative with the bar hole of positioning sleeve 9; Bar hole is a slot, and the long limit of bar hole is parallel with center line.On inner sliding sleeve 5 lower part walls, be evenly distributed with the hole.
At the annular claw of the oriented outer lug in the two ends of inner sliding sleeve 5, an annular claw groove is arranged on the inwall of top connection 2, an annular claw groove is arranged on the inwall of lower contact 12.The edge of annular claw groove and annular claw groove is processed with 45 ° chamfering.
Claims (5)
1. hydraulic pressure sliding sleeve that is used for completion, mainly form by top connection (2), urceolus (3), joint ring I (4), inner sliding sleeve (5), joint ring II (6), seal stopper ring (7), joint ring III (8), positioning sleeve (9), dog screw (10), joint ring IV (11) and lower contact (12), the lower end of cylindrical shape top connection (2) urceolus (3) that is threaded, it is characterized in that: the lower contact (12) that is threaded in the lower end of urceolus (3) has an inner sliding sleeve (5) in top connection (2), urceolus (3) and lower contact (12) inner space; Between urceolus (3) inwall and inner sliding sleeve (5) outer wall, annular space is arranged, on the outer wall of inner sliding sleeve (5), annular piston is arranged, in the annular space of the position of annular piston between urceolus (3) and inner sliding sleeve (5), annular piston is divided into hydraulic cavities and lower hydraulic pressure chamber with the annular space between urceolus (3) and the inner sliding sleeve (5); Heavy wall section top on urceolus (3) top is drilled with two hydraulic channels parallel with center line, and hydraulic channel is communicated with last hydraulic cavities and lower hydraulic pressure chamber respectively, is fixed with hydraulic joint on urceolus (3), and hydraulic joint is communicated with hydraulic channel respectively; In the lower end of lower hydraulic pressure chamber and the annular space between urceolus (3) and inner sliding sleeve (5), be fixed with joint ring III (8), in the bottom of joint ring III (8) and the annular space between urceolus (3) and inner sliding sleeve (5), cylindrical shape positioning sleeve (9) is arranged, positioning sleeve (9) is fixed on the inwall of urceolus (3) by dog screw (10); In the upper end of lower contact (12) and the annular space between urceolus (3) and inner sliding sleeve (5), be fixed with joint ring IV (11); Be evenly distributed with bar hole on the wall of urceolus (3) and positioning sleeve (9), the bar hole on the urceolus (3) is relative with the bar hole of positioning sleeve (9); On inner sliding sleeve (5) lower part wall, be evenly distributed with the hole.
2. the hydraulic pressure sliding sleeve that is used for completion according to claim 1 is characterized in that: the pawl in the oriented outer lug in two ends of inner sliding sleeve (5), the annular claw groove is arranged on the inwall of top connection (2), and the annular claw groove is arranged on the inwall of lower contact (12).
3. the hydraulic pressure sliding sleeve that is used for completion according to claim 1, it is characterized in that: be fixed with joint ring II (6) and seal stopper ring (7) in the annular piston bottom of inner sliding sleeve (5), in joint ring II (6) and seal stopper ring (7) annular space between urceolus (3) and inner sliding sleeve (5).
4. the hydraulic pressure sliding sleeve that is used for completion according to claim 1 is characterized in that: in the lower end of top connection (2) and between urceolus (3) and inner sliding sleeve (5) joint ring I (4) is arranged.
5. according to claim 1,2, the 3 or 4 described hydraulic pressure sliding sleeves that are used for completion, it is characterized in that: described bar hole is a slot, and the long limit of bar hole is parallel with center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205800886U CN201843582U (en) | 2010-10-22 | 2010-10-22 | Hydraulic sliding sleeve for well completion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205800886U CN201843582U (en) | 2010-10-22 | 2010-10-22 | Hydraulic sliding sleeve for well completion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843582U true CN201843582U (en) | 2011-05-25 |
Family
ID=44038475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205800886U Expired - Lifetime CN201843582U (en) | 2010-10-22 | 2010-10-22 | Hydraulic sliding sleeve for well completion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843582U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278091A (en) * | 2011-07-11 | 2011-12-14 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102337862A (en) * | 2011-10-17 | 2012-02-01 | 中国石油天然气股份有限公司 | Variable-diameter fracturing valve |
| CN103375147A (en) * | 2012-04-24 | 2013-10-30 | 中国石油天然气股份有限公司 | Underground multistage voltage division switch device |
| CN103883280A (en) * | 2014-03-25 | 2014-06-25 | 中国石油集团渤海钻探工程有限公司 | Multistage fracturing and exploitation control sliding sleeve and well completion tail pipe string structure |
| CN104405347A (en) * | 2014-12-03 | 2015-03-11 | 东营市福利德石油科技开发有限责任公司 | Intelligent hydraulic stepless flow regulating and controlling device |
| CN106014336A (en) * | 2016-06-29 | 2016-10-12 | 西南石油大学 | Intelligent switch sliding sleeve based on electrohydraulic control |
| CN113006738A (en) * | 2021-05-10 | 2021-06-22 | 中国石油大学(北京) | Sliding sleeve |
-
2010
- 2010-10-22 CN CN2010205800886U patent/CN201843582U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278091A (en) * | 2011-07-11 | 2011-12-14 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102278091B (en) * | 2011-07-11 | 2013-12-18 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102337862A (en) * | 2011-10-17 | 2012-02-01 | 中国石油天然气股份有限公司 | Variable-diameter fracturing valve |
| CN103375147A (en) * | 2012-04-24 | 2013-10-30 | 中国石油天然气股份有限公司 | Underground multistage voltage division switch device |
| CN103883280A (en) * | 2014-03-25 | 2014-06-25 | 中国石油集团渤海钻探工程有限公司 | Multistage fracturing and exploitation control sliding sleeve and well completion tail pipe string structure |
| CN103883280B (en) * | 2014-03-25 | 2017-06-16 | 中国石油集团渤海钻探工程有限公司 | Multistage fracturing and controlling sliding sleeve and completion tail pipe string structure |
| CN104405347A (en) * | 2014-12-03 | 2015-03-11 | 东营市福利德石油科技开发有限责任公司 | Intelligent hydraulic stepless flow regulating and controlling device |
| CN106014336A (en) * | 2016-06-29 | 2016-10-12 | 西南石油大学 | Intelligent switch sliding sleeve based on electrohydraulic control |
| CN113006738A (en) * | 2021-05-10 | 2021-06-22 | 中国石油大学(北京) | Sliding sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |
|
| CX01 | Expiry of patent term |