CN2493739Y - Gas recovery valve for oil well sleeve - Google Patents
Gas recovery valve for oil well sleeve Download PDFInfo
- Publication number
- CN2493739Y CN2493739Y CN 01248443 CN01248443U CN2493739Y CN 2493739 Y CN2493739 Y CN 2493739Y CN 01248443 CN01248443 CN 01248443 CN 01248443 U CN01248443 U CN 01248443U CN 2493739 Y CN2493739 Y CN 2493739Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve ball
- valve body
- pressure release
- pressure
- 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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- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
A gas recovery valve for oil well sleeve belongs to the technical field of oil production. The recovery valve changes an original valve body from an elbow form to a triple form. The original structure of the lower section of the valve body is reserved. The upper section of the valve body is provided with a relief plug, a pressure setting spring, a relief ball valve and a relief ball valve seat. Double-direction gettering or pressure relief to annular space of an oil pumping when the valve is closed by the relative position switch of the pressure setting spring and the relief ball valve.
Description
The utility model belongs to the oil exploration equipment technical field.
During the oil well ordinary production, mix living natural gas at oil well and the gathering of oil pick-up tube annular space, if pressure is elevated to a certain degree, to make the oil well can not ordinary production, the gas that will overlap be in the past put into atmosphere, has polluted environment, wasted resource, the applicant had once designed a kind of cover gas recovering device that will overlap in the crude oil that gas is recovered to institute's extraction, saw Chinese patent: application number 93215503.0 is existing above-mentioned pumpingh well cover gas recovering device, and its function ratio is more single.Cover gas can only be recovered in the crude oil.
The purpose of this utility model is the structure that changes the cover gas recovering device, makes it increase double-vane getter function or oil well pressure release function.
The technical solution of the utility model is to change original valve body the valve body of threeway form into by the form of elbow, has gas passage, hypomere that the valve ball of original technology, valve ball backing pin, valve ball seat plug are installed at the middle part of valve body.In the end of valve body epimere the pressure release plug is arranged.Have level pressure spring and pressure release valve ball, pressure release valve ball to be positioned under the pressure release plug to be located on the ball seat of valve ball at valve body middle part.When need increased diplopore getter function, valve ball was last, and spring is following, and during as selection oil pipe pressure release function, valve ball is following, and spring is last.No. 93215503.0, the installation site of the utility model in oil well and mode and Chinese patent are identical.
Using good effect of the present utility model is not only can reclaim the natural gas that accumulates in the well but also can be backed down valve two ends getter by the valve ball of upper end when the cover atmospheric pressure is increased to the numerical value of level pressure spring setting in crude oil.When selecting the pressure release function, to be closed by the people when the well mouth of oil well valve, oil pick-up tube builds the pressure, and pressure reaches this valve through gas passage, and the pressure release valve ball is backed down, and makes pressure leak into wellbore annulus, and the protection import does not damage.
Accompanying drawing is a structural representation of the present utility model.
Embodiment makes the valve body 2 of threeway form with metal material and existing processing method, horizontal gas passage 6 and the valve ball 8 that is installed in hypomere, and valve ball backing pin 7, valve ball seat plug 9 is identical with prior art.Set up the pressure release plug 1 that is installed in the epimere end at the valve body epimere, setting pressure is set in the level pressure spring 3 of 4.0MPa under the pressure release plug.Spring is pressure release valve ball 43 times.Ball seat 5 is arranged under the pressure release valve ball.
As what utilize is two-way getter function, only needs spring 3 and valve ball 4 reversing of position.
Below promptly finish the making of the utility model self structure.No. 93215503.0, the installation site of the utility model in well and method and Chinese patent are identical.
The course of work of present embodiment is that when oil well was normally pumped, the cover gas that is collected at annular space backed down valve ball 8 by the lower end of valve and enters oil pick-up tube through gas passage 6, recovery set gas.When head valve is closed, oil pick-up tube builds the pressure, and when pressure surpassed the pressure that the level pressure spring sets, pressure release valve ball 4 was by jack-up, and pressure leaks into annular space.
Claims (1)
1, a kind of pumpingh well cover gas reclaims valve, comprise gas passage (6), valve ball (8), valve ball backing pin (7), valve ball seat plug (9), it is characterized in that: valve body (2) changes the threeway form into by the elbow form, in the epimere end of valve body installation level pressure spring (3) and pressure release valve ball (4) under pressure release plug (1), the pressure release plug are housed, the pressure release valve ball is positioned on the ball seat (5) of the valve ball that is located at the valve body middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248443 CN2493739Y (en) | 2001-06-26 | 2001-06-26 | Gas recovery valve for oil well sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248443 CN2493739Y (en) | 2001-06-26 | 2001-06-26 | Gas recovery valve for oil well sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2493739Y true CN2493739Y (en) | 2002-05-29 |
Family
ID=33659085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248443 Expired - Fee Related CN2493739Y (en) | 2001-06-26 | 2001-06-26 | Gas recovery valve for oil well sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2493739Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108828A (en) * | 2010-06-24 | 2013-05-15 | 西尔维娅·罗曼娜·马拉比尼 | Recyclable valve closure for keg |
| CN105019860A (en) * | 2014-04-28 | 2015-11-04 | 中国石油化工股份有限公司 | Vertical gravity high-pressure check valve string |
-
2001
- 2001-06-26 CN CN 01248443 patent/CN2493739Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108828A (en) * | 2010-06-24 | 2013-05-15 | 西尔维娅·罗曼娜·马拉比尼 | Recyclable valve closure for keg |
| CN105019860A (en) * | 2014-04-28 | 2015-11-04 | 中国石油化工股份有限公司 | Vertical gravity high-pressure check valve string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |