CN2782924Y - High pressure resisting gas lift valve - Google Patents
High pressure resisting gas lift valve Download PDFInfo
- Publication number
- CN2782924Y CN2782924Y CN 200520030544 CN200520030544U CN2782924Y CN 2782924 Y CN2782924 Y CN 2782924Y CN 200520030544 CN200520030544 CN 200520030544 CN 200520030544 U CN200520030544 U CN 200520030544U CN 2782924 Y CN2782924 Y CN 2782924Y
- Authority
- CN
- China
- Prior art keywords
- valve
- lower seal
- high pressure
- gas lift
- seal body
- 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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Abstract
The utility model discloses a high pressure resisting gas lift valve. The inner wall of a middle valve body is provided with an upper seal body which is annular, a lower seal body is arranged on a valve head, and the lower seal body is a round table shape; the lower seal body is integrated with the valve head into a whole and can move up and down following the valve head. The upper and the lower seal bodies are arranged in the middle valve body by the utility model to avoid high pressure gas directly acting on a corrugated pipe, and the corrugated pipe is effectively protected, and thus, the goal of gas lift liquid discharging is achieved, and the problem of liquid accumulating of ultra-deep wells can be effectively solved.
Description
Technical field
The utility model relates to a kind of gas lift valve, the oil gas well of discharge opeing after being applicable to ultradeep well and needing pressure break, acidizing treatment.
Technical background
What oil field gas-lift production was at present used is that the patent No. is the ZL03284069.1 gas lift valve, as shown in Figure 1.This gas lift valve injects gas and acts directly on the bellows by injection hole in construction operation, when pressure surpassed the bearing capacity of bellows, bellows was damaged easily, therefore the application life of having reduced gas lift valve, does not reach the purpose of discharge opeing.
Goal of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of high pressure resistant gas lift valve is provided.
The purpose of this utility model is achieved in that high pressure resistant gas lift valve is on the inwall on the middle valve body 7 seal 3 to be housed, last seal 3 is an annular, and lower seal body 4 is housed on the valve head 2, and lower seal body 4 is a garden platform shape, lower seal body 4 is integral with valve head 2, and can move up and down with valve head 2.
The utility model has avoided gases at high pressure to act directly on the bellows by be provided with upper and lower seal in middle valve body, has protected bellows effectively, thereby reaches the purpose of gaslift discharge opeing, has solved the difficult problem of ultradeep well hydrops effectively.
Description of drawings:
Fig. 1 is existing gas lift valve structural representation; Fig. 2 is high pressure resistant gas lift valve structural representation;
Among the figure: valve body among 1-bellows, 2-valve head, the last seal of 3-, 4-lower seal body, 5-valve seat, 6-injection hole, the 7-;
The specific embodiment
As shown in Figure 2, high pressure resistant gas lift valve is to improve by the middle valve body 7 to existing gas lift valve to form.On the inwall seal 3 is being housed on the middle valve body 7, last seal 3 is an annular, and lower seal body 4 is housed on the valve head 2, and lower seal body 4 is a garden platform shape.Lower seal body 4 is integral with valve head 2, and can move up and down with valve head 2.
During work, inject gas and enter valve body, act on the lower seal body 4, promote the lower seal body and move up by injection hole 6, compress bellows contacts with last seal 3 until lower seal body 4, forms sealing, valve head 2 lifts off a seat 5, and gas enters oil pipe by valve seat orifice, reaches the purpose of discharge opeing.Do not act directly on the bellows because inject gas,, gas-lift production technology can both be played a role in ultradeep well and pressure break, acidifying well, widened the application of gas-lift production so protected bellows effectively.
Claims (1)
1, a kind of high pressure resistant gas lift valve, it is characterized in that: seal (3) is housed on the inwall on the middle valve body (7), last seal (3) is an annular, lower seal body (4) is housed on the valve head (2), lower seal body (4) is a garden platform shape, lower seal body (4) is integral with valve head (2), and can move up and down with valve head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030544 CN2782924Y (en) | 2005-04-20 | 2005-04-20 | High pressure resisting gas lift valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030544 CN2782924Y (en) | 2005-04-20 | 2005-04-20 | High pressure resisting gas lift valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782924Y true CN2782924Y (en) | 2006-05-24 |
Family
ID=36767910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030544 Expired - Fee Related CN2782924Y (en) | 2005-04-20 | 2005-04-20 | High pressure resisting gas lift valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782924Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688440B (en) * | 2007-05-23 | 2012-10-10 | 斯塔特伊石油公司 | Gas valve and production tubing with a gas valve |
| CN105350944A (en) * | 2015-12-06 | 2016-02-24 | 长江大学 | Gas injection tool for continuous oil tube gas jack |
-
2005
- 2005-04-20 CN CN 200520030544 patent/CN2782924Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688440B (en) * | 2007-05-23 | 2012-10-10 | 斯塔特伊石油公司 | Gas valve and production tubing with a gas valve |
| CN105350944A (en) * | 2015-12-06 | 2016-02-24 | 长江大学 | Gas injection tool for continuous oil tube gas jack |
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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 |