CN2675856Y - Degassing and recovering apparatus for oil well casing - Google Patents
Degassing and recovering apparatus for oil well casing Download PDFInfo
- Publication number
- CN2675856Y CN2675856Y CN 200420011547 CN200420011547U CN2675856Y CN 2675856 Y CN2675856 Y CN 2675856Y CN 200420011547 CN200420011547 CN 200420011547 CN 200420011547 U CN200420011547 U CN 200420011547U CN 2675856 Y CN2675856 Y CN 2675856Y
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- oil
- annular
- ring
- well casing
- 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
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model provides a degassing and recovering apparatus for oil well casing, belonging to the technical field of oil extraction. The degassing and recovering apparatus for oil well casing comprises an annular outer sleeve, an annular inner sleeve, adjusting nuts, adjusting leading screws, pressure adjusting springs and a pressure limiting ball valve. A totally enclosed annular space is sealed at a connecting position between two ends of the annular outer sleeve and the annular inner sleeve, the upper inner cavity of the annular inner sleeve is matched with the adjusting nuts provided with inner screw thread and outer screw thread, and the lower inner cavity of the annular inner sleeve is provided with the pressure adjusting springs acting on the pressure limiting ball valve. The centers of the inner screw thread via holes for matching with the adjusting leading screws passing through the via holes, and the lateral surface of the annular outer sleeve is provided with an upper oil inlet and a lower oil outlet. The lateral surface of the cavity of the annular inner sleeve with the pressure adjusting springs is provided with an exhaust port communicated with the lower oil outlet of the annular outer sleeve, and the center of the tail end of the annular inner sleeve is provided with an air inlet. The degassing and recovering apparatus for oil well casing can exhaust air automatically with labor saving, exhausted pressure can be optionally adjusted, exhausted gas can automatically mix in drained oil without backflow, the loss of gas is prevented, energy source is saved, and the degassing and recovering apparatus for oil well casing can preserve heat automatically for preventing from frosting.
Description
Technical field:
The utility model relates to a kind of venting retracting device, the device that especially relates to the natural gas in the relief sleeve annular space that a kind of producing well uses and reclaim.
Background technology:
When oil well recovers the oil, contain the higher oil well of natural gas and will from oil reservoir, discharge a large amount of natural gases.The natural gas that discharges is collected in the oil sets annular space and forms certain pressure that increases progressively gradually, impels the interior liquid level of well to descend along with the increasing of pressure, has seriously influenced the oil recovery producing pressure differential, and this just must install a discharging device of air at well head.Traditional way of past is manually to be thrown in the atmosphere on time, and not only contaminated environment also wastes energy, and because of containing certain moisture in the natural gas, very easily makes the gate valve valve freeze influence in the winter time and use.
Summary of the invention:
Technical problem to be solved in the utility model provide a kind of exhaust voluntarily, insulation voluntarily, and the gas that gives off can be sneaked into voluntarily in the liquid of discharge among, the contrary oil well casing venting retracting device that returns, prevents gas loss.
The technical solution of the utility model is achieved in that it comprises ring-shaped jacket, ring inner sleeve, adjust nut, adjust leading screw, pressure spring, the pressure limiting ball valve, junction, the two ends sealing of ring-shaped jacket and ring inner sleeve forms totally enclosed annular space, ring inner sleeve top inner chamber is processed with internal thread and is processed with externally threaded adjustment nut and cooperates, lower lumen is provided with pressure spring and acts on the pressure limiting ball valve, adjusting the nut center is processed with internal thread through hole and cooperates by the adjustment leading screw in it, the side of ring-shaped jacket has up and down, oil-out, the cavity side that ring inner sleeve is equipped with pressure spring has exhaust opening and communicates with the oil-out of ring-shaped jacket bottom, and the terminal center of ring inner sleeve has air inlet port.
The utility model is rational in infrastructure, easy for installation, and exhaust has voluntarily been saved manually, and blowdown presssure can arbitrarily be adjusted, and the gas that gives off can be sneaked among the fluid of discharge voluntarily, and contrary returning prevents gas loss, saved the energy, and insulation prevents to freeze voluntarily.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
With reference to accompanying drawing, the utility model comprises ring-shaped jacket 4, ring inner sleeve 3, adjust nut 5, adjust leading screw 6, pressure spring 2, pressure limiting ball valve 1, junction, the two ends welded seal of ring-shaped jacket 4 and ring inner sleeve 3 forms totally enclosed annular space, ring inner sleeve 3 top inner chambers are processed with internal thread and are processed with externally threaded adjustment nut 5 and cooperate, lower lumen is provided with pressure spring 2 and acts on pressure limiting ball valve 1, can apply different pressures to pressure limiting ball valve 1 by adjusting nut 5, thereby the startup of control pressure limiting ball valve, adjusting nut 5 centers is processed with internal thread through hole and cooperates by the adjustment leading screw 6 in it, adjust leading screw 6 and adjust the stroke of pressure limiting ball valve 1, limit its open gap, the side of ring-shaped jacket 4 has up and down, oil-out 8,10, the cavity side that ring inner sleeve 3 is equipped with pressure spring 2 has exhaust opening 9 and communicates with the oil-out 10 of ring-shaped jacket 4 bottoms, and the terminal center of ring inner sleeve 3 has air inlet port 11.
During work, enter in the annular space of interior overcoat formation from the oil pipe 13 interior fluid of extracting out from oil-in 8 via discharge line 7, discharge via outlet opening 10 afterwards and enter oil pipeline, behind the annular space of fluid by interior overcoat formation, utilize the oily temperature of itself can prevent that the pressure limiting ball valve from freezing, annular space between oil well casing 12 and the oil pipe 13 has the natural gas of some, under certain pressure, enter the exhaust chamber at pressure spring 2 places via pressure limiting ball valve 1, discharge to mix through exhaust opening 9 and together enter oil pipeline with fluid from oil-out 10 discharges from air inlet port 11.
Claims (1)
1, a kind of oil well casing venting retracting device, it is characterized in that: it comprises ring-shaped jacket, ring inner sleeve, adjust nut, adjust leading screw, pressure spring, the pressure limiting ball valve, junction, the two ends sealing of ring-shaped jacket and ring inner sleeve forms totally enclosed annular space, ring inner sleeve top inner chamber is processed with internal thread and is processed with externally threaded adjustment nut and cooperates, lower lumen is provided with pressure spring and acts on the pressure limiting ball valve, adjusting the nut center is processed with internal thread through hole and cooperates by the adjustment leading screw in it, the side of ring-shaped jacket has up and down, oil-out, the cavity side that ring inner sleeve is equipped with pressure spring has exhaust opening and communicates with the oil-out of ring-shaped jacket bottom, and the terminal center of ring inner sleeve has air inlet port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011547 CN2675856Y (en) | 2004-02-18 | 2004-02-18 | Degassing and recovering apparatus for oil well casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011547 CN2675856Y (en) | 2004-02-18 | 2004-02-18 | Degassing and recovering apparatus for oil well casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2675856Y true CN2675856Y (en) | 2005-02-02 |
Family
ID=34482645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420011547 Expired - Fee Related CN2675856Y (en) | 2004-02-18 | 2004-02-18 | Degassing and recovering apparatus for oil well casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2675856Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592024A (en) * | 2009-07-15 | 2009-12-02 | 中国海洋石油总公司 | Degassing system for closed production space of oil well |
-
2004
- 2004-02-18 CN CN 200420011547 patent/CN2675856Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592024A (en) * | 2009-07-15 | 2009-12-02 | 中国海洋石油总公司 | Degassing system for closed production space of oil well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201474664U (en) | Pressure-adjustable gas safety recovery unit | |
| EP2916001B1 (en) | High-pressure air pump | |
| CN204782942U (en) | Screw compression formula oil field gas recovery unit | |
| CN201218077Y (en) | Air bag type self-sealing blowout preventer | |
| CN2675856Y (en) | Degassing and recovering apparatus for oil well casing | |
| CN202348224U (en) | Piston air valve type automatic pressure release valve of thermal production well | |
| CN202441620U (en) | Vacuum set for adhesives production | |
| CN201568738U (en) | Seal gas recycling device of expansion machine | |
| CN203379640U (en) | Vacuumized oil-gas separation device for oil pump car | |
| CN2806769Y (en) | Coal-bed gas recovery system | |
| CN103357201A (en) | Oil pump vehicle evacuation oil-gas separator | |
| CN104047567A (en) | Automatic oil well exhaust valve, gas purifying device and method | |
| CN200975337Y (en) | Plunger type unpowered suction device | |
| CN2563299Y (en) | Underwell casing gas discharge valve | |
| CN202381057U (en) | Simple casing gas recovery device | |
| CN202629565U (en) | Adjustable ventilation device for water drainage valve | |
| CN201826347U (en) | Direct-type negative pressure-free current-stabilizing water supply device | |
| CN206035695U (en) | Fuel prefilter drainage structures | |
| CN2823545Y (en) | Oil well sleeve gas releasing recovering device | |
| CN101220881B (en) | Pressure breaking device | |
| CN200978841Y (en) | Pneumatic oil extraction device | |
| CN213746073U (en) | Engine oil pumping device | |
| CN203230549U (en) | Oil condensate recovery pump | |
| CN204138637U (en) | For the evaporation unit of grease condensing, freezing deodorization | |
| CN214533526U (en) | Pollution discharge screw vacuum pump for alcohol extraction process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050202 |