CN2426013Y - Hydraulic controlled casing valve for well cementing - Google Patents
Hydraulic controlled casing valve for well cementing Download PDFInfo
- Publication number
- CN2426013Y CN2426013Y CN 00208523 CN00208523U CN2426013Y CN 2426013 Y CN2426013 Y CN 2426013Y CN 00208523 CN00208523 CN 00208523 CN 00208523 U CN00208523 U CN 00208523U CN 2426013 Y CN2426013 Y CN 2426013Y
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- China
- Prior art keywords
- cover
- circulation port
- open
- sealing ring
- pin
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic controlled sleeve tube valve for well cementing, which solves the problem that outer annular spaces of a sleeve tube can not be continuous sealed or one layer of the annular spaces can not be sealed at times. The utility model is characterized in that a pin can be opened by using ground pressure shear, and circulation and the well cementing can be reached through a circulation port; the pin can be closed by using the ground pressure shear, which causes a lower line of a closing sleeve and an opening sleeve to be sealed to seal the circulation port, and permanent spacing can be reached by using clamp springs. Compared with the prior art, the sleeve tube valve has the advantages that rubber plugs do not need to drill, well completion time is shortened, effectiveness is improved, etc.
Description
The utility model relates to a kind of valve that utilizes hydraulic control to open, close, and belongs to reinforcing oil well hydraulic control casing valve.
After the oil drilling finishing drilling, carry out well cementing operation to oil-water well setting of casing and cement injection, make the casing annulus sealing; Because the needs of geologic structure and some special well-completing process, the annular space of sealing or certain one deck can not sealing continuously to require casing annulus sometimes, and this just need be at casing valve of a certain position connection of bunch tube.Casing valve in the past adopts the two stage cementing instrument, realizes but the opening and closing of two stage cementing instrument all need to throw plug in sleeve pipe, also need bore the plug operation like this after well cementation, incurs loss through delay the completion time, increases workload, and cost increases.
The purpose of this utility model is exactly to provide a kind of plug of need not throwing only to need to press the well cementation hydraulic control casing valve that can realize that casing valve opens and closes by spraining at well head at above-mentioned the deficiencies in the prior art.
The purpose of this utility model reaches by the following technical programs: this well cementation hydraulic control casing valve, by interior cover, close cover, open cover, jump ring and sealing ring form, be characterized in: the top of interior cover has the pressure transmission hole of equal portion, the bottom has uniform circulation port, in be enclosed within on the wall on the pressure transmission hole jump ring be housed; Interior cover is fixedly closed cover, is fixedly opened cover to open pin with closing pin; Close to put and be provided with the jump ring groove; In cover and close between the cover both sides up and down sealing ring all is housed at pressure transmission hole; Open cover at the circulation port upside and sealing ring is housed with closing between the cover, in the downside of circulation port, overlap and open sealing ring is housed between the cover.
The utility model compared with prior art has following advantage: because cover fixedly is opened cover to open pin in this casing valve, and the bottom is provided with circulation port, and its opening action only needs can realize in the well head pressure of spraining, thereby need not throw plug; Interior cover is fixedly closed cover with closing pin, and top has uniform pressure transmission hole, its closing motion only need carry out well head and sprain and press or drop into earlier to sprain behind the ball suitable with circulation port quantity and diameter again and press and can realize, also need not throw plug, so after using this casing valve construction, need not bore the plug operation, save operation, shorten the completion time, reduce workload, increase the benefit.
Accompanying drawing 1 is a structure chart of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this well cementation hydraulic control casing valve, by interior cover 1, close cover 2, open cover 3, jump ring 6 and sealing ring are formed, it is characterized in that: the top of interior cover 1 has uniform pressure transmission hole 4, the bottom has uniform circulation port 5, interior cover 1 is equipped with jump ring 6 on the wall on the pressure transmission hole 4; Interior cover 1 is fixedly closed cover 2, is fixedly opened cover 3 to open pin 9 with closing pin 7; Close cover 2 and be provided with jump ring groove 8; In cover 1 in the both sides up and down of pressure transmission hole 4 sealing ring is housed all between overlapping 2 with closing; Open cover 3 at circulation port 5 upsides and sealing ring is housed between 2, cover 1 and open and sealing ring is housed between overlapping 3 in the downside of circulation port 5 with closing cover.
During use, according to needs of cementing operations the hydraulic control casing valve is connected in the bunch tube down to the precalculated position, down-hole, when after the cement plug bruising is replaced in well cementation, needing casing valve to open, utilize the well cementation pump truck to make the sleeve pipe internal pressure raise to cut off on ground and open pin 9, make that to open cover 3 descending, circulation port 5 is communicated with annular space, and this moment can be by the annular space more than the circulation port 5 circulation well cleanup liquid irrigating sleeve pipe valves, or in sleeve pipe cement injection by the annular space more than the circulation port 5 sealing casing valves.After reaching with casing valve construction purpose, can utilize the big discharge capacity of moment of well cementation pump truck to sprain on ground to press or in sleeve pipe, drops into the choke pressure rising that the ball all suitable with circulation port 5 quantity and diameter makes circulation port 5 from well head, under pressure transmission hole 4 transmits, closing pin 7 is cut off, closing cover sealed circulation port 52 descending cooperations with sealing ring, it is one with interior cover 1 with closing cover 2 locks that while jump ring 6 enters jump ring groove 8, makes circulation port 5 be in permanent closed state.
Claims (1)
1, well cementation hydraulic control casing valve, by interior cover (1), close cover (2), open cover (3), jump ring (6) and sealing ring form, it is characterized in that: the top of interior cover (1) has uniform pressure transmission hole (4), the bottom has uniform circulation port (5), and interior cover (1) is equipped with jump ring (6) on the wall on the pressure transmission hole (4); Interior cover (1) is fixedly closed cover (2), is fixedly opened cover (3) to open pin (9) with closing pin (7); Close cover (2) and be provided with jump ring groove (8); In cover (1) and close between the cover (2) and sealing ring all is housed in the both sides up and down of pressure transmission hole (4); Open cover (3) and close between the cover (2) at circulation port (5) upside sealing ring is housed, cover (1) and open between the cover (3) sealing ring is housed in the downside of circulation port (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208523 CN2426013Y (en) | 2000-04-17 | 2000-04-17 | Hydraulic controlled casing valve for well cementing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208523 CN2426013Y (en) | 2000-04-17 | 2000-04-17 | Hydraulic controlled casing valve for well cementing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426013Y true CN2426013Y (en) | 2001-04-04 |
Family
ID=33575871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00208523 Expired - Lifetime CN2426013Y (en) | 2000-04-17 | 2000-04-17 | Hydraulic controlled casing valve for well cementing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426013Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832120A (en) * | 2010-04-28 | 2010-09-15 | 金湖富源机械有限公司 | Bidirectional slip insert mechanical casing valve |
| CN102102500A (en) * | 2010-12-17 | 2011-06-22 | 中国石油集团长城钻探工程有限公司 | Motor-driven worm gear transmission underground sleeve valve |
| CN101435318B (en) * | 2008-12-17 | 2013-01-23 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Non-drill cementing well method and pipe column |
| CN112253045A (en) * | 2020-12-08 | 2021-01-22 | 中国石油天然气集团有限公司 | Sliding sleeve type impacting seat |
-
2000
- 2000-04-17 CN CN 00208523 patent/CN2426013Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435318B (en) * | 2008-12-17 | 2013-01-23 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Non-drill cementing well method and pipe column |
| CN101832120A (en) * | 2010-04-28 | 2010-09-15 | 金湖富源机械有限公司 | Bidirectional slip insert mechanical casing valve |
| CN101832120B (en) * | 2010-04-28 | 2012-11-21 | 金湖富源机械有限公司 | Bidirectional slip insert mechanical casing valve |
| CN102102500A (en) * | 2010-12-17 | 2011-06-22 | 中国石油集团长城钻探工程有限公司 | Motor-driven worm gear transmission underground sleeve valve |
| CN102102500B (en) * | 2010-12-17 | 2013-11-06 | 中国石油集团长城钻探工程有限公司 | Motor-driven worm gear transmission underground sleeve valve |
| CN112253045A (en) * | 2020-12-08 | 2021-01-22 | 中国石油天然气集团有限公司 | Sliding sleeve type impacting seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010404 |