CN2637726Y - Antifreeze oil well natural gas recovery device - Google Patents
Antifreeze oil well natural gas recovery device Download PDFInfo
- Publication number
- CN2637726Y CN2637726Y CN 03277258 CN03277258U CN2637726Y CN 2637726 Y CN2637726 Y CN 2637726Y CN 03277258 CN03277258 CN 03277258 CN 03277258 U CN03277258 U CN 03277258U CN 2637726 Y CN2637726 Y CN 2637726Y
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- CN
- China
- Prior art keywords
- natural gas
- oil well
- hole
- valve
- lower contact
- 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 relates to an anti-freezing device for reclaiming the natural gas of oil well and is mainly to solve the problem that the existing natural gas reclamation device of the oil well is easy to be frozen. The utility model is characterized in that: a step hole (8) is opened at the side wall of a top joint (1), an one-way check valve (2) which is wound with a spring (6) and matches with a pressure cap (7) is arranged in the interior of the step hole (8); a cavity which is communicated with the step hole (8) and the bottom of which is communicated with the outside through an inclined hole (9) is opened on the side wall of a lower joint (5), a float valve (4) matching with a sealing ring (3) is arranged in the cavity which has a plurality of holes (10) on the outer wall; the top joint (1) and the lower joint (5) are fixed with each other. The anti-freezing device for reclaiming the natural gas of oil well has the characteristics of frost prevention and convenient installation.
Description
Technical field:
The utility model relates in the oil recovery field, oil field natural gas retracting device used on the oil pumper, belongs to anti-freeze type oil well natural gas retracting device.
Background technology:
Be dissolved with natural gas in the crude oil under the condition on stratum, in the crude oil transmission process, because temperature raises, pressure reduces, natural gas discharges, and casing pressure increases, and the valve discharging gas under certain pressure of installing in a kind of well head flow process of oilfield pumping well widespread usage is regulated casing pressure at present, and natural gas under the recovery well, because this device is positioned at ground, very easily freeze in the winter time to lose efficacy, influence the pump efficiency of rod-pumped well and be unfavorable for the recovery of natural gas.
The utility model content:
In order to overcome the deficiency that existing oil well natural gas retracting device easily freezes on ground, the utility model provides a kind of anti-freeze type oil well natural gas retracting device, and this anti-freeze type oil well natural gas retracting device has characteristics antifreeze, easy for installation.
The technical solution of the utility model is: this anti-freeze type oil well natural gas retracting device comprises top connection and lower contact, and the top connection sidewall has a shoulder hole, and the hole is built-in with the one way stop peturn valve that matches with pressure cap and reaches winding spring on flap valve; Have a chamber that communicates with the hole and its bottom in the lower contact sidewall and communicate with the external world by inclined hole, the chamber that outer wall has some holes is built-in with the float valve that matches with joint ring; Top connection and lower contact fix.
Above-mentioned float valve can be cavity.
The utlity model has following beneficial effect: owing to take such scheme, float valve is a free body, when liquid level is higher than control device, realizes sealing; When isolating gas pressure greater than the resistance of one way valve, natural gas promptly is recovered, play the effect of regulating the control casing pressure simultaneously, and it is easy for installation easy to operate, this device is gone up lower contact and linked to each other with oil pipe respectively, is lowered in the oil well with oil pipe, and is antifreeze when using in the winter time, reduce the workover workload, improved production efficiency.
Description of drawings:
Fig. 1 is a structure sectional view of the present utility model.
1-top connection among the figure, 2-one way stop peturn valve, 3-joint ring, 4-float valve, 5-lower contact, 6-spring, 7-pressure cap, 8-hole, 9-inclined hole, 10-hole.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in FIG., this anti-freeze type oil well natural gas retracting device, comprise top connection 1 and lower contact 5, top connection 1 fixes with lower contact 5 and is connected with tubing round thread respectively, easy for installation easy to operate, top connection 1 sidewall has a shoulder hole 8, be equipped with pressure cap 7 in the hole 8 successively, one way stop peturn valve 2 reaches winding spring 6 on flap valve 2, pressure cap 7 matches with one way stop peturn valve 2, have a chamber that communicates with hole 8 in lower contact 5 sidewalls, the chamber that outer wall has some air vents 10 is built-in with float valve 4 and joint ring with matching 3, and float valve 4 is the hollow sealing that helps floating, and the lower end in chamber communicates with the external world by inclined hole 9.
During actual the use, this device is lowered in the oil well with oil pipe, and is antifreeze when using in the winter time.When liquid level was higher than control device, liquid was entered in the chamber by inclined hole 9, and float valve 4 floats, and realized sealing; When isolating gas pressure greater than the resistance of 6 pairs of one way stop peturn valves 2 of spring, natural gas is entered by hole 10, flows out from top connection 1 promptly to be recovered, and plays the effect of regulating the control casing pressure simultaneously.
This shows that use this anti-freeze type oil well natural gas retracting device, the antifreeze in the winter time maintenance load that reduced has improved pump production efficiency, has reduced cost of production.
Claims (2)
1, a kind of anti-freeze type oil well natural gas retracting device, comprise top connection (1) and lower contact (5), it is characterized in that: top connection (1) sidewall has a shoulder hole (8), and hole (8) are built-in with the one way stop peturn valve (2) that matches with pressure cap (7) and go up winding spring (6) at flap valve (2); Have a chamber that communicates with hole (8) and its bottom in lower contact (5) sidewall and communicate with the external world by inclined hole (9), the chamber that outer wall has some holes (10) is built-in with the float valve (4) that matches with joint ring (3); Top connection (1) fixes with lower contact (5).
2, anti-freeze type oil well natural gas retracting device according to claim 1, it is characterized in that: float valve (4) can be cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277258 CN2637726Y (en) | 2003-07-22 | 2003-07-22 | Antifreeze oil well natural gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277258 CN2637726Y (en) | 2003-07-22 | 2003-07-22 | Antifreeze oil well natural gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637726Y true CN2637726Y (en) | 2004-09-01 |
Family
ID=34302695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277258 Expired - Fee Related CN2637726Y (en) | 2003-07-22 | 2003-07-22 | Antifreeze oil well natural gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637726Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638713A (en) * | 2020-04-27 | 2021-11-12 | 中国石油天然气股份有限公司 | Floating cylinder type valve for electric pump well and electric pump production pipe column |
-
2003
- 2003-07-22 CN CN 03277258 patent/CN2637726Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638713A (en) * | 2020-04-27 | 2021-11-12 | 中国石油天然气股份有限公司 | Floating cylinder type valve for electric pump well and electric pump production pipe column |
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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 |