CN201635711U - Well mouth casing gas release device - Google Patents
Well mouth casing gas release device Download PDFInfo
- Publication number
- CN201635711U CN201635711U CN2010201548909U CN201020154890U CN201635711U CN 201635711 U CN201635711 U CN 201635711U CN 2010201548909 U CN2010201548909 U CN 2010201548909U CN 201020154890 U CN201020154890 U CN 201020154890U CN 201635711 U CN201635711 U CN 201635711U
- Authority
- CN
- China
- Prior art keywords
- well mouth
- casing gas
- pipeline
- release device
- well head
- 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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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model provides a well mouth casing gas release device which belongs to an oil field production device and comprises a protective casing mounted on the upper part of a well mouth cross joint, wherein a base body is mounted in the protective casing, the upper end of a pipeline penetrating through the base is communicated with an oil pipe, and the lower end of the pipeline is communicated with the inner cavity of the well mouth cross joint, and a check valve is mounted on the pipeline above the base body. The well mouth casing gas release device has simple and reasonable structure, can guide the casing gas into the oil pipe, ensure the crude oil and the casing gas to enter the extraction system together, accordingly realizes the recycle of casing gas, avoids waste and environmental pollution and improves the production safety.
Description
Technical field
The utility model provides the oil recovery of a kind of oil field to produce and has used device.
Background technology
In the oil extraction process, meeting extraction sleeve pipe gas is called for short cover gas between oil well casing and the oil pipe.Main component in the cover gas is a natural gas.At present, the extraction of this cover gas has caused environment pollution again after the direct emptying of the side pipe on the well head four-way had both produced waste, also possible initiation fire, influence safety in production.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of well head to put the cover device of air, to realize the recycling of cover gas.
The utility model is to realize like this, well head is put the cover device of air, and it has protective case to be installed in the top of well head four-way, and pedestal is installed in the protective case, the upper end of passing the pipeline of pedestal is connected with oil pipe, the lower end communicates with well head four-way inner chamber, on the pipeline of pedestal top one way valve is installed.
Adopt the well head of said structure to put the cover device of air, simple and reasonable, cover gas can be incorporated in the oil pipe, enter the production system with crude oil, realized the recycling of cover gas, avoided waste and environment pollution, improved the safety of producing.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.
As shown in drawings, the well head of the utility model is put the cover device of air, and it has protective case 4 to be installed in the top of well head four-way 8, and pedestal 5 is installed in the protective case, the upper end of passing the pipeline 7 of pedestal is connected with oil pipe 1, the lower end communicates with well head four-way inner chamber, on the pipeline 7 of pedestal top one way valve 2 is installed.
During use, the cover gas of down-hole extraction enters pipeline 7, enters at last in the oil pipe, enters the production system with crude oil.After this can crude oil and cover gas be separated by Oil-gas Separation, make cover be so incensed that recycling.The effect of one way valve is to prevent that the cover gas that enters oil pipe from turning back in the well head four-way.
On the pipeline 7 below described one way valve 2 stop valve 3 is installed also.Can pipeline be turn-offed by stop valve when needing.
Between pedestal and well head four-way upper surface, steel ring 6 can be arranged, to play sealing function.
Claims (2)
1. well head is put the cover device of air, it is characterized in that, it has protective case (4) to be installed in the top of well head four-way (8), pedestal (5) is installed in the protective case, the upper end of passing the pipeline (7) of pedestal is connected with oil pipe (1), the lower end communicates with well head four-way inner chamber, on the pipeline (7) of pedestal top one way valve (2) is installed.
2. well head as claimed in claim 1 is put the cover device of air, it is characterized in that, on the pipeline (7) below described one way valve (2) stop valve (3) is installed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201548909U CN201635711U (en) | 2010-04-05 | 2010-04-05 | Well mouth casing gas release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201548909U CN201635711U (en) | 2010-04-05 | 2010-04-05 | Well mouth casing gas release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635711U true CN201635711U (en) | 2010-11-17 |
Family
ID=43080200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201548909U Expired - Fee Related CN201635711U (en) | 2010-04-05 | 2010-04-05 | Well mouth casing gas release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075124A (en) * | 2011-10-25 | 2013-05-01 | 季会军 | Oil field wellhead with protection installation |
-
2010
- 2010-04-05 CN CN2010201548909U patent/CN201635711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075124A (en) * | 2011-10-25 | 2013-05-01 | 季会军 | Oil field wellhead with protection installation |
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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: 20101117 Termination date: 20110405 |