CN201090797Y - Oil tube pressure testing control valve - Google Patents
Oil tube pressure testing control valve Download PDFInfo
- Publication number
- CN201090797Y CN201090797Y CNU2007200290175U CN200720029017U CN201090797Y CN 201090797 Y CN201090797 Y CN 201090797Y CN U2007200290175 U CNU2007200290175 U CN U2007200290175U CN 200720029017 U CN200720029017 U CN 200720029017U CN 201090797 Y CN201090797 Y CN 201090797Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- pressure testing
- tubing string
- spring
- 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
Disclosed is a control valve used for the pressure testing of an oil pipe, comprising a valve body, a valve ball, a closing spring and a spring base; the valve ball and the closing spring are arranged in the valve body; the diameter of the valve ball is bigger than the minimum inner diameter of the valve body; the valve ball is inversely arranged on the valve port of the valve body; the valve ball is supported by the closing spring which is sleeved on the spring base; a through hole is arranged in the spring base which is connected with the lower part of the valve body; a lateral outlet is arranged on the valve body. The utility model is arranged between a pressure testing device and a tubing string to make the fluid in the tubing string have unidirectional flow; when the device is closed down and the pressure increasing is stopped, the situation that whether the pressure in the tubing string is stable or not has nothing to do with the pressure testing device, so that the influence on the sealing state of the tubing string caused by the leakage of the pressure testing device is excluded; thereby, the purposes of judging the sealing state of the tubing string accurately, improving the well maintenance quality, reducing the well maintenance time and increasing the economic benefit are achieved.
Description
One, technical field
The utility model is the ground instrument that the oil field well workover is used, and is a kind of oil pipe pressure testing control valve.
Two, background technique
The oil field well workover in order to guarantee construction quality, all will be carried out pressure testing to oil pipe in a lot of flow charts.Method to the oil pipe pressure testing is that pressure testing equipment is connected at well head with the tubing string of G.I.H at present, pressure testing equipment boosts then, inject liquid in the tubing string of well inner sealing, closing device stopped to boost after fluid pressure raise, and watched the pressure stability situation to judge the sealing of OIH tubing string.Because pressure testing equipment not necessarily seals itself, might cause and stop pressing the back pressure instability, cause that pressure descends, cause erroneous judgement to judging whether tubing string seals, unnecessary operation often occurs and do over again, increase operating cost, prolong oil well well opening time again, reduce oil well output.
Three, summary of the invention
The purpose of this utility model is to overcome the deficiency that exists in the existing pressure testing, and a kind of pressure testing equipment is provided, and accurately judges the sealing of tubing string, improves the well workover quality, reduces the well workover time, increases economic benefit.
The purpose of this utility model is achieved in that by valve body, valve ball, closes spring, spring seat is formed, put into valve ball in the valve body, close spring, the diameter of valve ball is greater than the minimum diameter of valve body, valve ball falls seat on the valve port of valve body, valve ball supports by closing spring, closes spring housing and is contained on the spring seat, and through hole is arranged in the spring seat, spring seat connects with valve body lower portion, and side outlet is arranged on the valve body.
Further measure of the present utility model is to also have a side outlet on the valve body 1.
The beneficial effects of the utility model are: the utility model is installed between pressure testing equipment and the tubing string, making the liquid that enters in the tubing string is one-way flow, after closing device stops to boost, whether the pressure in the tubing string is stablized and the pressure testing device independent, can get rid of the influence of pressure testing equipment leakage, thereby reach the purpose of this utility model judging whether tubing string seals.
Four, description of drawings
Accompanying drawing is the utility model embodiment's a erection drawing.
Five, embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
As shown in the figure: the 1st, valve body, the 2nd, valve ball, the 3rd, close spring 3, the 5th, spring seat, be that the utility model is by valve body 1, valve ball 2, close spring 3, spring seat 5 is formed, and puts into valve ball 2 in the valve body 1, close spring 3, the diameter of valve ball 2 is greater than the minimum diameter of valve body 1, valve ball 2 falls seat on the valve port of valve body 1, valve ball 2 supports by closing spring 3, closes spring 3 and is sleeved on the spring seat 5, in the spring seat 5 through hole is arranged, spring seat 5 connects with valve body 1 bottom, side outlet 4 is arranged on the valve body 1, be used for the setting pressure meter connector, generally GAUGE CONNECTOR is welded on herein during use, liquid in the valve body enters in the pressure gauge through exporting 4, thereby watches the pressure in the tubing string.Also had side outlet 6 on valve body 1, be used to install pressure relief valve, pressure relief valve is welded on herein, the pressure in the tubing string can be emitted the step operation down of the carrying out of safety after pressure testing is intact.
Also can only open a side outlet on valve body 1, both setting pressure table outside this outlet is also installed Decompression valves.
Claims (2)
1. oil pipe pressure testing control valve, it is characterized in that: by valve body (1), valve ball (2), close spring (3), spring seat (5) is formed, put into valve ball (2) in the valve body (1), close spring (3), the diameter of valve ball (2) is greater than the minimum diameter of valve body (1), valve ball (2) falls seat on the valve port of valve body (1), valve ball (2) supports by closing spring (3), closing spring (3) is sleeved on the spring seat (5), spring seat has through hole in (5), spring seat (5) connects with valve body (1) bottom, and side outlet (4) is arranged on the valve body (1).
2. oil pipe pressure testing control valve according to claim 1 is characterized in that: side outlet (6) is arranged on the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200290175U CN201090797Y (en) | 2007-10-12 | 2007-10-12 | Oil tube pressure testing control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200290175U CN201090797Y (en) | 2007-10-12 | 2007-10-12 | Oil tube pressure testing control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090797Y true CN201090797Y (en) | 2008-07-23 |
Family
ID=39862557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200290175U Expired - Fee Related CN201090797Y (en) | 2007-10-12 | 2007-10-12 | Oil tube pressure testing control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090797Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956846A (en) * | 2010-09-11 | 2011-01-26 | 马新焕 | Stop valve |
| CN103415732A (en) * | 2011-03-07 | 2013-11-27 | 株式会社三国 | Means for mounting check valve into housing comprising fluid path therein |
-
2007
- 2007-10-12 CN CNU2007200290175U patent/CN201090797Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956846A (en) * | 2010-09-11 | 2011-01-26 | 马新焕 | Stop valve |
| CN101956846B (en) * | 2010-09-11 | 2012-09-05 | 马新焕 | Stop valve |
| CN103415732A (en) * | 2011-03-07 | 2013-11-27 | 株式会社三国 | Means for mounting check valve into housing comprising fluid path therein |
| CN103415732B (en) * | 2011-03-07 | 2015-03-11 | 株式会社三国 | Means for mounting check valve into housing comprising fluid path therein |
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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 |