CN202108469U - Well head pressure releasing device for sleeve of oil well - Google Patents
Well head pressure releasing device for sleeve of oil well Download PDFInfo
- Publication number
- CN202108469U CN202108469U CN2011202369154U CN201120236915U CN202108469U CN 202108469 U CN202108469 U CN 202108469U CN 2011202369154 U CN2011202369154 U CN 2011202369154U CN 201120236915 U CN201120236915 U CN 201120236915U CN 202108469 U CN202108469 U CN 202108469U
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- Prior art keywords
- valve
- sleeve
- big
- releasing device
- well head
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- Expired - Fee Related
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Abstract
The utility model discloses a well head pressure releasing device for a sleeve of an oil well, which comprises a well head sealer, an oil outlet three-way joint, a production valve, an oil outlet pipe, an upper flange, a big four-way joint, a lower flange, a sleeve valve and a constant pressure valve. The sealer, the oil outlet three-way joint, the upper flange, the big four-way joint and the lower flange are sequentially mounted from top to bottom; the production valve is mounted on the left side of the oil outlet three-way joint; the oil outlet pipe is mounted at the right end of the production valve; and the sleeve valve is mounted on the left side of the big four-way joint. The well head pressure releasing device is characterized in that the constant pressure valve is mounted at an outlet at the right end of the sleeve valve. By using the well head pressure releasing device, the pressure of the sleeve of a pumping well can be released, so that natural gas is recycled and cannot be stolen; the natural gas in the sleeve is prevented from influencing the pump efficiency of a defueling pump; and therefore, the well head pressure releasing device has an obvious economical benefit.
Description
Technical field
The utility model is the device of using on the oil well, is that a kind of oil well casing is put kill-job mouth device.
Background technology
In oil field pumping well, all to isolate natural gas in the sleeve pipe, natural gas easy stolen molecule in sleeve pipe connects away with simple and easy pipeline, causes the wasting of resources, also occurs security incident easily.If sleeve pipe is shut, the natural gas in the sleeve pipe is not drained, and can influence the pump efficiency of oil well pump, even can cause the oil well pump gas lock and can't normally pump, and makes oil well not fuel-displaced.
Summary of the invention
The purpose of the utility model is that a kind of oil well casing of design is put kill-job mouth device, and it can be discharged the casing pressure of pumpingh well, avoids natural gas stolen, avoids the gas influence oil well pump pump efficiency in the sleeve pipe.
The purpose of the utility model is achieved in that and comprises wellhead sealing device, flow tee, production valve, flowline, upper flange, big four, lower flange, sleeve valve, constant pressure valve; Sealer, flow tee, upper flange, big four, lower flange are installed from top to bottom successively; The production valve is installed in the left side of flow tee; Flowline is installed in the right-hand member of producing valve, and sleeve valve is installed in the left side of big four, it is characterized in that: constant pressure valve is installed in sleeve valve right-hand member exit.
The beneficial effect of the utility model is: the utility model can discharge the casing pressure of pumpingh well, makes natural gas obtain recycling, can be not stolen, avoid the gas influence oil well pump pump efficiency in the sleeve pipe, and therefore, the utlity model has remarkable economic efficiency.
Description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment
Below in conjunction with Fig. 1 the embodiment of the utility model is described.
Can know by figure; The embodiment of the utility model comprises wellhead sealing device 1, flow tee 2, produces valve 3, flowline 4, upper flange 5, big four 6, lower flange 7, sleeve valve 8, constant pressure valve 9; Sealer 1, flow tee 2, upper flange 5, big four 6, lower flange 7 are installed from top to bottom successively; Production valve 3 is installed in the left side of flow tee 2; Flowline 4 is installed in the right-hand member of producing valve 3, and sleeve valve 8 is installed in the left side of big four 6, and constant pressure valve 9 is installed in sleeve valve 8 right-hand member exits.
When casing pressure was higher than the pressure of flow line, constant pressure valve 9 was opened, and sleeve pipe gas is arranged through constant pressure valve 9, and recyclable.
Adopt clamp connection between wellhead sealing device 1, flow tee 2, production valve 3, the flowline 4; Flow tee 2 adopts clamp connection with upper flange 5; Big four 6 adopts clamp connection with sleeve valve 8, adopts flange to connect between upper flange 5, big four 6, the lower flange 7.
Claims (1)
1. an oil well casing is put kill-job mouth device; Comprise wellhead sealing device (1), flow tee (2), produce valve (3), flowline (4), upper flange (5), big four (6), lower flange (7), sleeve valve (8), constant pressure valve (9); Sealer (1), flow tee (2), upper flange (5), big four (6), lower flange (7) are installed from top to bottom successively; Production valve (3) is installed in the left side of flow tee (2); Flowline (4) is installed in the right-hand member of producing valve (3), and sleeve valve (8) is installed in the left side of big four (6), it is characterized in that: constant pressure valve (9) is installed in sleeve valve (8) right-hand member exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202369154U CN202108469U (en) | 2011-06-25 | 2011-06-25 | Well head pressure releasing device for sleeve of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202369154U CN202108469U (en) | 2011-06-25 | 2011-06-25 | Well head pressure releasing device for sleeve of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108469U true CN202108469U (en) | 2012-01-11 |
Family
ID=45433905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202369154U Expired - Fee Related CN202108469U (en) | 2011-06-25 | 2011-06-25 | Well head pressure releasing device for sleeve of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761739A (en) * | 2018-07-25 | 2020-02-07 | 中国石油天然气股份有限公司 | Pressure relief device and wellhead assembly with same |
-
2011
- 2011-06-25 CN CN2011202369154U patent/CN202108469U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761739A (en) * | 2018-07-25 | 2020-02-07 | 中国石油天然气股份有限公司 | Pressure relief device and wellhead assembly with same |
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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: 20120111 Termination date: 20120625 |