CN201209427Y - Temporary blocking single flow valve - Google Patents
Temporary blocking single flow valve Download PDFInfo
- Publication number
- CN201209427Y CN201209427Y CNU2008201185433U CN200820118543U CN201209427Y CN 201209427 Y CN201209427 Y CN 201209427Y CN U2008201185433 U CNU2008201185433 U CN U2008201185433U CN 200820118543 U CN200820118543 U CN 200820118543U CN 201209427 Y CN201209427 Y CN 201209427Y
- Authority
- CN
- China
- Prior art keywords
- seat
- valve
- locking ring
- valve body
- lock ring
- 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
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- Check Valves (AREA)
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a temporary clogging check valve which is composed of a valve cover, a valve ball group, a valve body, a spring, a shear pin, a one-way sleeve, a locking ring, a locking ring seat, an upper spring seat and a lower spring seat. The valve ball group is fixed in the valve body through the shear pin, the one-way sleeve is installed at the bottom of the valve ball group, the locking ring seat is installed at the bottom of the valve body, the one-way sleeve is locked and fixed on the locking ring seat through the locking ring, a one-way tooth is positioned at the outer side of the one-way sleeve to ensure that the one-way sleeve can only move downwards correspondingly to the locking ring seat and the one-way tooth is mutually buckled with the locking ring. The spring seat, the lower spring seat and the spring are installed inside the one-way sleeve, a sieve tube is installed inside the upper part of the valve body, and sieve holes are positioned on the sieve tube. While entering the well, the valve ball group is not provided with a moveable clearance, the inner hole of the upper spring seat is clogged, the fluid in the well can not enter a water injecting pipe, the pressure in the water injecting pipe is low, and a hydraulic packer can not be sealed during the work, thereby the operational success is ensured.
Description
One, technical field
The utility model belongs to oil field and the supporting downhole tool of hydraulic packer, is a kind of temporarily stifled ball-and-seat.
Two, background technology
Having down in the water injection string of hydraulic packer, will suppress in oil pipe behind the following intact tubing string, making hydraulic packer seat envelope, water injection string also will satisfy the requirement of anti-flushing well simultaneously, therefore, the essential ball-and-seat down of water injection string of hydraulic packer is arranged down.The water injection string of ball-and-seat is arranged because the speed of going into the well is too fast down, occur ball-and-seat internal pressure height easily, the ball-and-seat external pressure is low, makes hydraulic packer seat envelope midway, causes down water injection string unsuccessful.
Three, summary of the invention
The purpose of this utility model is a kind of temporarily stifled ball-and-seat of design, makes its no pressure in water injection pipe during water injection string down, prevent hydraulic packer midway seat seal.
The purpose of this utility model is achieved in that by valve bonnet, valve ball group, valve body, spring, shear pin, unidirectional cover, lock ring, lock ring seat, upper spring seat, lower spring cup to be formed, the valve ball group is fixed in the valve body by shear pin, unidirectional cover is installed under the valve ball group, the lock ring seat is under valve body, unidirectional cover is locked on the lock ring seat by lock ring, there is unidirectional tooth unidirectional cover outside, and unidirectional cover can only be walked downwards with respect to the lock ring seat, and unidirectional tooth and lock ring interlock.
Install spring base, lower spring cup, spring in the unidirectional cover.
Screen casing is installed in the valve body top, sieve aperture is arranged on the screen casing.
The beneficial effects of the utility model are: the valve ball group does not have the free gap when going into the well, and the upper spring seat endoporus is blocked, and borehole fluid can not enter in the water injection pipe, and the water injection pipe internal pressure is low, hydraulic packer can be not midway the seat envelope, guarantee job success.
Four, description of drawings
Accompanying drawing is the utility model embodiment assembling drawing.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.As shown in the figure, form by valve bonnet 1, valve ball group 2, valve body 3, spring 4, shear pin 5, unidirectional cover 6, lock ring 7, lock ring seat 8, upper spring seat 9, lower spring cup 10, valve ball group 2 is fixed in the valve body 3 by shear pin 5, the valve ball group is installed unidirectional cover 6 for 2 times, lock ring seat 8 is valve body 3 times, and unidirectional cover 6 is locked on the lock ring seat 8 by lock ring 7, and there is unidirectional tooth unidirectional cover 6 outsides, unidirectional cover 6 can only be walked downwards with respect to lock ring seat 8, and unidirectional tooth and lock ring 7 interlock.
Install spring base 9, lower spring cup 10, spring 4 in the unidirectional cover 6.
Screen casing 11 is installed in valve body 3 tops, on the screen casing 11 sieve aperture is arranged.
The valve ball group contacts with valve bonnet 1 with upper spring seat when going into the well, and the valve ball group does not have the free gap, and the upper spring seat endoporus is blocked, and borehole fluid can not enter in the water injection pipe, and the water injection pipe internal pressure is low, hydraulic packer can be not midway the seat envelope, guarantee job success.After having descended water injection pipe, in oil pipe, suppress, make valve ball group 2 produce downward thrust, cut off shear pin 5, lock ring 7 shrinks, and valve ball group 2 is descending, and valve ball group 2 is opened, the utility model recovers the ball-and-seat function, and normally water filling is during well-flushing, liquid stream enters in the ball-and-seat from the bottom, because unidirectional cover 6 can only walk downwards with respect to lock ring seat 8, so, well-flushing pressure reduction can not make valve ball group 2 up, guarantees that the well-flushing passage is unimpeded, during normal water filling, pressure reduction makes length of spring compressed, and valve ball group 2 is closed, normally water filling.Water injection pipe internal pressure and casing pressure balance when stopping water filling, spring 4 boosts upper spring seat 9, and water injection pipe is no longer airtight, water in the well can not carried to ground when playing water injection pipe.Screen casing 11 is installed in valve body 3 tops can be prevented that the foreign material in the water injection pipe from dropping on the valve ball group 2, guarantee that runner is unimpeded.
Claims (3)
1, a kind of temporarily stifled ball-and-seat, it is characterized in that: by valve bonnet (1), valve ball group (2), valve body (3), spring (4), shear pin (5), unidirectional cover (6), lock ring (7), lock ring seat (8), upper spring seat (9), lower spring cup (10) is formed, valve ball group (2) is fixed in the valve body (3) by shear pin (5), valve ball group (2) is installed unidirectional cover (6) down, lock ring seat (8) is under valve body (3), unidirectional cover (6) is locked on the lock ring seat (8) by lock ring (7), there is unidirectional tooth unidirectional cover (6) outside, unidirectional cover (6) can only be walked downwards with respect to lock ring seat (8), and unidirectional tooth and lock ring (7) interlock.
2, temporarily stifled ball-and-seat according to claim 1 is characterized in that: install spring base (9), lower spring cup (10), spring (4) in the unidirectional cover (6).
3, temporarily stifled ball-and-seat according to claim 1, it is characterized in that: screen casing (11) is installed in valve body (3) top, and screen casing has sieve aperture on (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201185433U CN201209427Y (en) | 2008-05-28 | 2008-05-28 | Temporary blocking single flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201185433U CN201209427Y (en) | 2008-05-28 | 2008-05-28 | Temporary blocking single flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201209427Y true CN201209427Y (en) | 2009-03-18 |
Family
ID=40480159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201185433U Expired - Fee Related CN201209427Y (en) | 2008-05-28 | 2008-05-28 | Temporary blocking single flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201209427Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695898A (en) * | 2013-12-09 | 2015-06-10 | 中国石油化工股份有限公司 | Wellhead anti-overflow valve in mechanized workover operation |
| CN109195234A (en) * | 2018-08-28 | 2019-01-11 | 扬中市国鹰电器有限公司 | A kind of sealing structure and processing method of electric heating tube |
| CN110130853A (en) * | 2019-06-12 | 2019-08-16 | 易鲁川 | A kind of water injection well ball-and-seat |
| CN111878036A (en) * | 2020-08-05 | 2020-11-03 | 中石化石油工程技术服务有限公司 | Multifunctional fluid one-way injection device and use method thereof |
-
2008
- 2008-05-28 CN CNU2008201185433U patent/CN201209427Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695898A (en) * | 2013-12-09 | 2015-06-10 | 中国石油化工股份有限公司 | Wellhead anti-overflow valve in mechanized workover operation |
| CN109195234A (en) * | 2018-08-28 | 2019-01-11 | 扬中市国鹰电器有限公司 | A kind of sealing structure and processing method of electric heating tube |
| CN110130853A (en) * | 2019-06-12 | 2019-08-16 | 易鲁川 | A kind of water injection well ball-and-seat |
| CN111878036A (en) * | 2020-08-05 | 2020-11-03 | 中石化石油工程技术服务有限公司 | Multifunctional fluid one-way injection device and use method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 |