CN102913186A - Gas injection valve - Google Patents
Gas injection valve Download PDFInfo
- Publication number
- CN102913186A CN102913186A CN 201210422363 CN201210422363A CN102913186A CN 102913186 A CN102913186 A CN 102913186A CN 201210422363 CN201210422363 CN 201210422363 CN 201210422363 A CN201210422363 A CN 201210422363A CN 102913186 A CN102913186 A CN 102913186A
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- CN
- China
- Prior art keywords
- valve
- gas injection
- valve rod
- injection valve
- valve seat
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- 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.)
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- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The invention provides a gas injection valve and relates to a valve device used in the exploitation of an oil and gas field. The gas injection valve comprises a valve seat and a valve rod arranged on the valve seat; and a lower joint is mounted on the other end of the valve rod in a sleeving manner. The gas injection valve is characterized in that a copper sleeve is also arranged between the valve rod and the lower joint. The valve seat has maximum deformation of 0.00117 mm and maximum stress of 17.594 MPa occurring at an inner ring of the valve seat. The valve rod has maximum deformation of 0.003556 mm and maximum stress of 12.5284 MPa. The gas injection valve has the benefits that the demands of a gas injection development process can be satisfied, and the wear degree of the valve rod of the gas injection valve is small, so that the service life can be effectively prolonged.
Description
Technical field
The present invention relates to a kind of a kind of valving that when exploitation of oil-gas field, uses.
Background technology
The oil gas field major part that China has developed enters the middle and later periods, obtained remarkable effect although take the series of measures such as water filling, but in the water injection in low-permeability oilfield exploitation, reflect the series of problems such as water injection pressure is high, cost is high, permeability is low, production capacity is low in recent years, have quite a few crude oil at underground mining not out, it is particularly important that the exploitation of remaining oil and complex reservoir just seems.In order to improve oil recovery factor, the oil production technology technology such as gas injection are more and more used.Because gas has easily the effect of flowing, reducing viscosity, volume expansion, reduction interfacial tension, oil reservoir kind, the degree of depth and scope that gas injection is suitable for are comparatively extensive, and be not subjected to the impact of formation temperature and salinity, therefore in development of low-permeability oil reservoir, have a clear superiority in.And the design of gas injection valve is just most important in gas injection development technique.
Summary of the invention
The present invention aims to provide a kind of not easy to wear, the gas injection valve of long service life.
Gas injection valve of the present invention comprises valve seat and the valve rod that is arranged on the valve seat, has been socketed lower contact on the valve rod other end, it is characterized in that also being provided with between valve rod and the lower contact copper sheathing.
Preferably, cover has spring on the lower end of valve rod and copper sheathing contact position.
Perhaps preferably, valve rod and valve seat contact position cover has spring.
The maximum distortion of valve seat of the present invention is 0.00117mm, and maximum stress is 17.594MPa, appears at ring in the valve seat.The maximum distortion of valve rod is 0.003556mm, and maximum stress is 12.5284MPa.Can satisfy the needs of gas injection development technique.And the wear intensity of its valve rod is little, can effectively increase the service life.
Description of drawings
Fig. 1 is the cut-away view of embodiment one.
The specific embodiment
Embodiment one.
Gas injection valve of the present invention comprises valve seat 1, valve rod 2, lower contact 5 and copper sheathing 4.Valve rod 2 is arranged on the valve seat 1, and copper sheathing 4 and lower contact 5 inner hollow have been socketed copper sheathing 4 on valve rod 2 other ends, and then valve rod 2 these ends are positioned at the inner hollow place of lower contact 5 with copper sheathing 4.
In addition, cover has spring 3 on the lower end of valve rod 2 and copper sheathing 4 contact positions.Valve rod 2 also overlaps with valve seat 1 contact position spring 3.
Contact continually with lower contact 5 under the gas effect owing to valve rod 2 during use, so wear and tear easily between valve rod 2 and the lower contact 5, affect service behaviour and the application life of gas injection valve.So the present invention is provided with a copper sheathing 4 between lower contact 5 and valve rod 2, can play good cushioning and protection to valve rod 2 and lower contact 5.
Claims (3)
1. gas injection valve comprises valve seat (1) and is arranged on valve rod (2) on the valve seat (1), has been socketed lower contact (5) on valve rod (2) other end, it is characterized in that also being provided with copper sheathing (4) between valve rod (2) and the lower contact (5).
2. gas injection valve as claimed in claim 1 is characterized in that cover has spring (3) on the lower end of valve rod (2) and copper sheathing (4) contact position.
3. gas injection valve as claimed in claim 1 is characterized in that valve rod (2) and valve seat (1) contact position cover have spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210422363 CN102913186A (en) | 2012-10-30 | 2012-10-30 | Gas injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210422363 CN102913186A (en) | 2012-10-30 | 2012-10-30 | Gas injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102913186A true CN102913186A (en) | 2013-02-06 |
Family
ID=47611729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210422363 Pending CN102913186A (en) | 2012-10-30 | 2012-10-30 | Gas injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102913186A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481301A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of limit-type Underwell anti-injection sand washing blanking plug of monomer |
| CN107208823A (en) * | 2014-09-01 | 2017-09-26 | 维尔纳·萨拉斯 | Method for determining the degree of wear of a valve and device for carrying out the method |
| CN108119098A (en) * | 2017-11-15 | 2018-06-05 | 中国石油天然气集团公司 | Well-head wax removal device and method |
| CN112392450A (en) * | 2019-08-15 | 2021-02-23 | 中国石油天然气股份有限公司 | Layered quantitative gas injection method and device for horizontal well |
-
2012
- 2012-10-30 CN CN 201210422363 patent/CN102913186A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208823A (en) * | 2014-09-01 | 2017-09-26 | 维尔纳·萨拉斯 | Method for determining the degree of wear of a valve and device for carrying out the method |
| CN107208823B (en) * | 2014-09-01 | 2019-08-09 | 维尔纳·萨拉斯 | Method for determining the degree of wear of a valve and device for carrying out the method |
| CN106481301A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of limit-type Underwell anti-injection sand washing blanking plug of monomer |
| CN108119098A (en) * | 2017-11-15 | 2018-06-05 | 中国石油天然气集团公司 | Well-head wax removal device and method |
| CN108119098B (en) * | 2017-11-15 | 2020-07-10 | 中国石油天然气集团公司 | Wellhead paraffin removal device and method |
| CN112392450A (en) * | 2019-08-15 | 2021-02-23 | 中国石油天然气股份有限公司 | Layered quantitative gas injection method and device for horizontal well |
| CN112392450B (en) * | 2019-08-15 | 2022-12-02 | 中国石油天然气股份有限公司 | Layered and quantitative gas injection method and device for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |