CN2310153Y - Constant-pressure heat washing valve - Google Patents
Constant-pressure heat washing valve Download PDFInfo
- Publication number
- CN2310153Y CN2310153Y CN 97243940 CN97243940U CN2310153Y CN 2310153 Y CN2310153 Y CN 2310153Y CN 97243940 CN97243940 CN 97243940 CN 97243940 U CN97243940 U CN 97243940U CN 2310153 Y CN2310153 Y CN 2310153Y
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- CN
- China
- Prior art keywords
- valve
- constant
- pressure heat
- washing
- 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
The utility model discloses a constant-pressure heat washing valve which is designed for the flow string of oil wells with low production, low permeability and low energy in oil fields. The constant-pressure heat washing valve can improve the problems of the back flow of washing fluid and the pollution of stratum existing in traditional flow strings; the constant-pressure heat washing valve can reduce the loss of idle work for pumping the washing fluid, and can save energy. The constant-pressure heat washing valve is composed of a main valve body, an adjusting screw bolt, an upper press cap, a guide barrel, a spring, a lower press cap, a valve ball and a valve seat. The constant-pressure heat washing valve has the advantages of simple structure and easy fabrication. The utility model can be used for disposable flow string for oil production and hot washing, so that the working amount of well washing can be reduced.
Description
The utility model belongs to the level pressure heated scrubing valve that the oil field is used for the producing well lower tubular column and belongs to the oil tool class.
The existing both at home and abroad heat mode of washing that adopts has two kinds, usually be divided into wash on the pump with pump under wash, heat is washed tubing string on the pump, to pump, wash when heat is washed under the packer, can not reach thorough cleaning performance less than pump, heat is washed under the tubing string packer under pump under the pump, general what adopt is slip-type packer, breaks pump barrel during because of deblocking easily, because of tubular column structure unreasonable.Simultaneously, cause flushing fluid to pour in down a chimney, pollute the stratum easily during well-flushing.The level pressure heated scrubing valve that this utility model provides is applicable to that low yield, oil recovery heat hypotonic, the low energy oil well washes disposable tubing string and be not reported through looking into domestic literature.The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, and a kind of level pressure heated scrubing valve of design.
The utility model is achieved in that
The level pressure heated scrubing valve is made up of main valve body (1), adjusting bolt (2), upper pressing cap (3), guide (4), spring (5), lower pressing cap (6), valve ball (7), valve seat (8).
Main valve body (1) perforate position and valve seat (8) are weldingly connected, valve seat (8) links to each other with guide (4) screw thread, guide (4) has two STHs, a ball seat is equipped with a valve ball (7) in the ball seat the inside, valve ball top is provided with lower pressing cap (6) and spring (5) by being equipped with successively on valve seat (8) top, and spring 5 lower ends are pressed in the lower pressing cap top; The upper end leans against upper pressing cap 3 tops, upper pressing cap (3) and regulate bolt (2) and be connected closely that bolt is regulated can the control spring tightness, and adjusting bolt (2) links to each other with guide (4) screw thread.
When the utility model used, main valve body and oil-well pump of oil well linked, and the lower end is attached at above the packer with screw thread, and when utilizing tubing string to recover the oil, the level pressure heated scrubing valve is closed; During clean-out service, flushing fluid enters the oil jacket annular space from sleeve gate, sets under the opening pressure one, and fluid enters oil pipe by the hole above the main valve body (1) by level pressure heated scrubing valve (2), returns to ground again.
The utility model compared with prior art has following advantage:
Because liquid can only one-way flow in the valve body, can not cause flushing fluid to pour in down a chimney during use, therefore can thoroughly clean oil well, can prevent also that simultaneously flushing fluid from pouring in down a chimney, make only oil layer pollution.
Because this valve can not influence normal oil recovery production again when hot clean-up well,, also can reduce the idle work loss of pumping flushing fluid, conserve energy in addition so can increase oil well output.
Provide embodiment and the utility model is described further below in conjunction with accompanying drawing.
Accompanying drawing: level pressure heated scrubing valve structure chart.
The main valve body (1) of the level pressure heated scrubing valve among the embodiment is to be made by the medium carbon steel material.Spring (5) is made, is regulated bolt (2), upper pressing cap (3), guide (4), spring (5), lower pressing cap (6), valve ball (7), valve seat (8) etc. by the 60sizmn material and forms, the construction of level pressure heated scrubing valve in need be used with tension force lock, sucker rod pump, anchor, packer, magnetic ball-and-seat etc.(not drawing among the figure)
Claims (3)
1. one kind is used for the level pressure heated scrubing valve, it is characterized in that perforate position and valve seat (8) in the main valve body (1) are weldingly connected, valve seat (8) and guide (4) are by threaded connection together, a STH is arranged above the guide (4), on valve seat (8) top a ball is installed, there is a valve spheroid (7) seat the inside, be provided with lower pressing cap (6) and spring (5) on valve ball top, spring (5) lower end is pressed in above the lower pressing cap, the spring upper end abuts against upper pressing cap top upper pressing cap (3) and closely links to each other with adjusting bolt (2), regulate by bolt, can the control spring elasticity, regulate bolt (2) and link to each other with screw thread with guide (4).
2. level pressure heated scrubing valve according to claim 1; It is characterized in that main valve body (1) is by the medium carbon steel material, spring (5) is made by the 60sizmn material.
3. level pressure heated scrubing valve according to claim 1; It is characterized in that guide (4) has two through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243940 CN2310153Y (en) | 1997-11-17 | 1997-11-17 | Constant-pressure heat washing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243940 CN2310153Y (en) | 1997-11-17 | 1997-11-17 | Constant-pressure heat washing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2310153Y true CN2310153Y (en) | 1999-03-10 |
Family
ID=33952798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97243940 Expired - Fee Related CN2310153Y (en) | 1997-11-17 | 1997-11-17 | Constant-pressure heat washing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2310153Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650204A (en) * | 2012-05-16 | 2012-08-29 | 中国石油天然气股份有限公司 | Hydraulic control check valve |
| CN101769141B (en) * | 2009-01-01 | 2012-11-14 | 黄石市汉威石油电子机械设备有限责任公司 | Localization hot washing device |
-
1997
- 1997-11-17 CN CN 97243940 patent/CN2310153Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769141B (en) * | 2009-01-01 | 2012-11-14 | 黄石市汉威石油电子机械设备有限责任公司 | Localization hot washing device |
| CN102650204A (en) * | 2012-05-16 | 2012-08-29 | 中国石油天然气股份有限公司 | Hydraulic control check valve |
| CN102650204B (en) * | 2012-05-16 | 2015-07-08 | 中国石油天然气股份有限公司 | Hydraulic control check valve |
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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 |