CN205400674U - Multi -functional single current valve of oil recovery well head - Google Patents
Multi -functional single current valve of oil recovery well head Download PDFInfo
- Publication number
- CN205400674U CN205400674U CN201620244934.4U CN201620244934U CN205400674U CN 205400674 U CN205400674 U CN 205400674U CN 201620244934 U CN201620244934 U CN 201620244934U CN 205400674 U CN205400674 U CN 205400674U
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- CN
- China
- Prior art keywords
- valve
- ball
- valve body
- seat
- well
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- Expired - Fee Related
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Abstract
The utility model discloses a multi -functional single current valve of oil recovery well head, including the valve body to and the valve chamber of setting in the valve body, the one end of valve body be provided with with the valve chamber single current valve import that communicates with each other, be provided with on the valve body simultaneously and export with the communicating single current valve of valve chamber, the valve chamber in be close to single current valve import department and be provided with the ball seat, the relative single current valve of the valve body import other end, the end of valve body is provided with the plug promptly, plug and ball seat between set gradually spring and spheroid. The utility model discloses install between oil jacket intercommunication, except long -term effectual anti -return function, the device still has simple structure, it is convenient to change, and characteristics that maintenance cost is low also can be changed under the circumstances of well incessantly, improved greatly the oil well open the well time rate, can reduce the viscous crude well and lead to the fact ka jing's probability because of stopping the well for a long time. The utility model discloses the regulatory function of device has realized that the resistance of valve ball is adjusted, great increase sleeve pipe gas's output.
Description
Technical field
This utility model relates to a kind of well mouth of oil well ball-and-seat, is specially a kind of well mouth of oil well ball-and-seat being easy to remove and repair and have scalable function.
Background technology
Well mouth of oil well ball-and-seat is a kind of device being widely used in well mouth of oil well, is mostly installed between proof wellhead oil casing connection, it is therefore an objective to time in order to prevent casing pressure lower than oil pressure, the liquid measure of oil well output blows back in sleeve pipe.The well mouth check valve design that current oil field uses is simple, has only included the function of anti-return, it is impossible to carry out local replacing, and cost is high, stops the well time long.
Therefore it provides a kind of simple in construction, it is simple to local carries out maintenance and changes the multi-functional back-flow preventer used suitable in oil well, has been a good problem to study.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, this utility model provides valve chamber integrated technique, simplifies replacing program, increases valve ball resistance regulatory function, according to the pressure regulating spring tension force of casing gas, device can be made to be in the Multifunctional oil-well ball-and-seat of rational duty.
A kind of production wellhead Multifunctional single pass valve, including valve body 2, and is arranged on the valve chamber 8 in valve body, and one end of described valve body 2 is provided with the ball-and-seat import 1 that communicates with valve chamber 8, is provided with the ball-and-seat outlet 9 communicated with valve chamber 8 on valve body 2 simultaneously；In described valve chamber 8, ball-and-seat import 1 place is provided with ball seat 3；Described relative ball-and-seat import 1 other end of valve body 2, namely the end of valve body 2 is provided with plug 7, is disposed with spring 5 and spheroid 4 between described plug 7 and ball seat 3.
The central authorities of described plug 7 are provided with the adjusting rod 6 being connected with spring 5；
Described ball seat 3 is positioned at the valve chamber that ball-and-seat outlet 9 is middle with ball-and-seat import 1；
Described plug 7 is that external the threadeding arranged with valve body 2 end of external screw thread by disposed thread is fixed；
The described ball seat 3 in valve chamber 8, spheroid 4 are all integrated with spring 5.
Positive beneficial effect:This utility model is arranged between oil jacket connection, except permanently effective anti-return function, this device also has simple in construction, changes conveniently, the feature that maintenance cost is low, also can be replaced when not stopping well, substantially increase rate when driving a well of oil well, heavy oil wells can be reduced and cause the probability of Ka Jing because stopping well for a long time.Take valve chamber integrated design, simplify replacing program, increase valve ball resistance regulatory function, according to the pressure regulating spring tension force of casing gas, device can be made to be in the Multifunctional single pass valve of rational duty.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Figure is: ball-and-seat import 1, single current valve body 2, ball seat 3, spheroid 4, spring 5, adjusting rod 6, plug 7, valve chamber 8, ball-and-seat outlet 9.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further:
As it is shown in figure 1, production wellhead Multifunctional single pass valve, including valve body 2, and being arranged on the valve chamber 8 in valve body, one end of valve body 2 is provided with the ball-and-seat import 1 that communicates with valve chamber 8, is provided with the ball-and-seat outlet 9 communicated with valve chamber 8 on valve body 2 simultaneously；In valve chamber 8, ball-and-seat import 1 place is provided with ball seat 3；Relative ball-and-seat import 1 other end of valve body 2, namely the end of valve body 2 is provided with plug 7, is disposed with spring 5 and spheroid 4 between plug 7 and ball seat 3；
The central authorities of described plug 7 are provided with the adjusting rod 6 being connected with spring 5；
Described ball seat 3 is positioned at the valve chamber that ball-and-seat outlet 9 is middle with ball-and-seat import 1；
Described plug 7 is that external the threadeding arranged with valve body 2 end of external screw thread by disposed thread is fixed；
The described ball seat 3 in valve chamber 8, spheroid 4 are all integrated with spring 5.
Operation principle: in use, when casing gas pressure is more than oil pressure, casing gas enters ball-and-seat entrance 1 to this utility model production wellhead Multifunctional single pass valve, and after backing down spheroid 4, gas enters valve chamber 8,
Exporting 9 entrance oil pipe pipelines from ball-and-seat again, when casing gas pressure is lower than oil pressure, the spring 5 in valve chamber 8 withstands spheroid 4, it is prevented that the liquid in oil pipe is poured in oil jacket annular space, forms circulation.When the overtension of spring 5 or when weakening, adjusting rod 6 can be passed through and regulate the tension force of spring 5 and reach best use state.After raw ball-and-seat lost efficacy, can directly opening plug 7, take out valve chamber 8, spheroid 4 and spring 5 to valve chamber are replaced, need not by ball-and-seat overall pulling down.
When casing pressure changes, the adjusting rod on valve body end plug can be passed through, the tension force of spring is adjusted, reduce the resistance of valve ball, make casing gas be easier to output, add oil and gas production.
Above case study on implementation is merely to illustrate preferred implementation of the present utility model; but this utility model is not limited to above-mentioned embodiment; in the ken that described exercising ordinary skill possesses; the any amendment made within spirit of the present utility model and principle, equivalent replacement and improvement etc., be regarded as the protection domain of the application.
Claims (5)
1. a production wellhead Multifunctional single pass valve, including valve body (2), and it is arranged on the valve chamber (8) in valve body, one end of described valve body (2) is provided with the ball-and-seat import (1) that communicates with valve chamber (8), is provided with ball-and-seat outlet (9) communicated with valve chamber (8) on valve body (2) simultaneously；It is characterized in that: in described valve chamber (8), ball-and-seat import (1) place is provided with ball seat (3)；Described valve body (2) is ball-and-seat import (1) other end relatively, and namely the end of valve body (2) is provided with plug (7), is disposed with spring (5) and spheroid (4) between described plug (7) and ball seat (3).
2. a kind of production wellhead Multifunctional single pass valve according to claim 1, it is characterised in that: the central authorities of described plug (7) are provided with the adjusting rod (6) being connected with spring (5).
3. a kind of production wellhead Multifunctional single pass valve according to claim 1, it is characterised in that: described ball seat (3) is positioned at the valve chamber that ball-and-seat outlet (9) is middle with ball-and-seat import (1).
4. a kind of production wellhead Multifunctional single pass valve according to claim 1, it is characterised in that: external the threadeding that described plug (7) is arranged with the valve body of external screw thread (2) end by disposed thread is fixed.
5. a kind of production wellhead Multifunctional single pass valve according to claim 1, it is characterised in that: the described ball seat (3) in valve chamber (8), spheroid (4) are all integrated with spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620244934.4U CN205400674U (en) | 2016-03-28 | 2016-03-28 | Multi -functional single current valve of oil recovery well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620244934.4U CN205400674U (en) | 2016-03-28 | 2016-03-28 | Multi -functional single current valve of oil recovery well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400674U true CN205400674U (en) | 2016-07-27 |
Family
ID=56419086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620244934.4U Expired - Fee Related CN205400674U (en) | 2016-03-28 | 2016-03-28 | Multi -functional single current valve of oil recovery well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400674U (en) |
-
2016
- 2016-03-28 CN CN201620244934.4U patent/CN205400674U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20170328 |