CN208294498U - A kind of tapping equipment of adjustable well mouth of oil well casing gas - Google Patents
A kind of tapping equipment of adjustable well mouth of oil well casing gas Download PDFInfo
- Publication number
- CN208294498U CN208294498U CN201820639711.7U CN201820639711U CN208294498U CN 208294498 U CN208294498 U CN 208294498U CN 201820639711 U CN201820639711 U CN 201820639711U CN 208294498 U CN208294498 U CN 208294498U
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- pipeline
- gas
- oil
- tapping equipment
- valve
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Abstract
A kind of tapping equipment of adjustable well mouth of oil well casing gas disclosed by the utility model, including upper oil pipeline, upper gas pipeline and petroleum pipeline, petroleum pipeline are connected with the upper oil pipeline and upper gas pipeline respectively；It is characterized in that, being provided with jet pump on the petroleum pipeline, leads on the pipeline between jet pump in upper gas pipeline and be disposed with safety valve and upper gas pipeline check valve according to gas flow direction.A kind of tapping equipment of the adjustable well mouth of oil well casing gas of the utility model, pass through setting jet pump, check valve and safety valve, casing gas can be controlled in certain range of pressure values, and excessive gas then enters in petroleum pipeline with upper oil pipeline, it prevents the crude oil in oil pipeline to be back in oil jacket annulus simultaneously, achievees the purpose that effective use and control wellhead sleeve gas.
Description
Technical field
The utility model belongs to well casing gas tapping equipment technical field, and in particular to a kind of adjustable well mouth of oil well
The tapping equipment of casing gas.
Background technique
In oilfield exploitation operation, the hydrocarbon gas such as natural gas dissolved in crude oil can be decomposed gradually and be precipitated and formed certainly
By associated gas, these gases can be discharged from being pumped into oil pipe by oil well pump in upper oil pipeline 1, and there are also moiety aggregations in oil
Pipe is commonly called as casing gas in the annular space of casing, and casing gas, which gathers, excessively just will form biggish pressure, if control is bad
It causes stress excessive, then can form downward pressure to annulus liquid level, the submergence of oil pump is caused constantly to reduce, lower oil pumping
The pumping drain efficiency of pump, influences the normal production of oil well；But rationally keep certain pressure also to help to improve pump efficiency, so
Keep reasonable controllable casing atmospheric pressure most important to the exploitation of crude oil in well head.The casing gas complicated component of well head,
Mainly there are natural gas, hydrogen sulfide gas and other hydrocarbon gas, it is not only dirty if casing gas is directly discharged in atmosphere or burns
Contaminating environment, there is also security risks, also will cause the waste of resource.Therefore, it is necessary to a kind of safety, it is economic, practical can be to well
The device that the discharge of mouthful casing gas constant-pressure is collected, while can also prevent outer defeated crude oil from flowing backward in oil jacket annulus, thus effectively, close
Reason ground utilizes casing gas.
Utility model content
The purpose of this utility model is to provide a kind of tapping equipments of adjustable well mouth of oil well casing gas, can incite somebody to action
Casing gas controls in certain range of pressure values, and achievees the purpose that effective use and control wellhead sleeve gas.
The technical scheme adopted by the utility model is
A kind of tapping equipment of adjustable well mouth of oil well casing gas, including upper oil pipeline, upper gas pipeline and petroleum pipeline,
Petroleum pipeline is connected with the upper oil pipeline and upper gas pipeline respectively；It is characterized in that, being provided on the petroleum pipeline
Jet pump leads on the pipeline between jet pump in upper gas pipeline and is disposed with safety valve and upper gas according to gas flow direction
Pipeline check valve.
The utility model is also characterized by:
The jet pump includes jet pump ontology and is arranged in the intrinsic inner cavity spout of jet pump.
The top of the inner cavity spout be it is cylindric, lower part is rounding mesa-shaped.
The safety valve includes valve casing, valve ball, spring and handwheel, and valve ball, valve ball and spring are equipped in valve casing
One end connection, the other end of spring connects handwheel.
The upper gas pipeline check valve includes valve body and is mounted on the torque spring and loose-leaf board being connected in valve body.
It further include metering pipeline, metering pipeline is connected with the upper oil pipeline.
The beneficial effects of the utility model are: a kind of discharge of adjustable well mouth of oil well casing gas of the utility model fills
It sets, by setting jet pump, check valve and safety valve, casing gas can be controlled in certain range of pressure values, and it is excessive
Gas then entered in petroleum pipeline with upper oil pipeline, while the crude oil in oil pipeline being prevented to be back in oil jacket annulus,
Achieve the purpose that effective use and controls wellhead sleeve gas.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the tapping equipment of adjustable well mouth of oil well casing gas of the utility model；
Fig. 2 is the structural representation of jet pump in a kind of tapping equipment of adjustable well mouth of oil well casing gas of the utility model
Figure；
Fig. 3 is the structural representation of safety valve in a kind of tapping equipment of adjustable well mouth of oil well casing gas of the utility model
Figure；
Fig. 4 is upper gas pipeline check valve in a kind of tapping equipment of adjustable well mouth of oil well casing gas of the utility model
Structural schematic diagram.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
A kind of tapping equipment of adjustable well mouth of oil well casing gas of the utility model, including upper oil pipeline 1, upper gas pipeline
2 and petroleum pipeline 3, petroleum pipeline 3 be connected respectively with the upper oil pipeline 1 and upper gas pipeline 2；On the petroleum pipeline 3
It is provided with jet pump 4, is disposed with peace according to gas flow direction on the pipeline that upper gas pipeline 2 leads between jet pump 4
Full valve 5 and upper gas pipeline check valve 6.
The safety valve 5 includes valve casing 51, valve ball 52, spring 53 and handwheel 54, is equipped with valve ball 52 in valve casing 51,
Valve ball 52 is connect with one end of spring 53, and the other end of spring 53 connects handwheel 54.
The upper gas pipeline check valve 6 is including valve body 61 and is mounted on the torque spring 62 and loose-leaf being connected in valve body 61
Plate 63.
The jet pump 4 includes jet pump ontology 41 and the inner cavity spout 42 being arranged in jet pump ontology 41；In described
The top of chamber spout 42 be it is cylindric, lower part is up big and down small rounding mesa-shaped.
It further include metering pipeline 7, metering pipeline 7 is connected with the upper oil pipeline 1.Measuring pipeline 7, mainly there are two make
With: first is that using metering pipeline 7 when the defeated wellblock of pipe needs one-well metering mouthful well；Second is that if petroleum pipeline 3 has damage to need
Metering pipeline 7 is enabled when repairing or safeguarding.
A kind of tapping equipment of adjustable well mouth of oil well casing gas of the utility model, flows through upper oil pipeline from oil pipe mouth
The crude oil for the ball-and-seat 8 being arranged on 1 is flowed into petroleum pipeline 3 by jet pump 4, in the process, if in oil jacket annulus
Casing gas be more than preset safety valve 5 threshold value, extra gas is then discharged, is collected in pipeline；Upper oil pipeline 1
In crude oil negative pressuren zone can be formed in pump chamber when flowing out by jet pump 4 from inner cavity spout 42, upper gas pipeline check valve 6 at this time
Loose-leaf board 63 opened and be inhaled into 4 in jet pump by the high pressure gas on upper gas pipeline 2, and converge crude oil and flow into together
Drain in petroleum pipeline 3, flows ultimately into gathering station point.
The crude oil that upper oil pipeline 1 is come in is accessed in 4 upper end of jet pump of the utility model, flows through the inner cavity spout of jet pump 4
After 42, because section mouthful reduces, flow velocity increases, certain negative pressure can be formed around the inner cavity of jet pump 4, so suck casing gas
It is flowed into transfer line together in jet pump 4 with crude oil.Preferably, the inlet of jet pump 4 and the outer diameter D of leakage fluid dram
It is consistent with the outer diameter of upper oil pipeline 1 for 50mm；The outside diameter d of air entry is 20mm, consistent with the outer diameter of upper gas pipeline 2.
Safety valve 5 is equipped with handwheel 54 at top, the engaging pressure size of valve ball 52 inside adjustable safety valve, from
And the casing gas pressure that can be controlled needs is preset, and mixes up opening pressure of safety valve.Casing gas is limited by safety valve 5
It controls, can be the unlatching threshold value of regulation safety valve 5 by 54 people of handwheel according to needs of production, so that in oil jacket annulus
Gas pressure be in controllable range.Preferably, the air inlet of safety valve 5 and the outer diameter of exhaust outlet are
20mm, it is consistent with the outer diameter of upper gas pipeline.
A upper gas pipeline check valve 6, the inside of upper gas pipeline check valve 6 are also equipped between safety valve 5 and jet pump 4
It is provided with torque spring 62 and loose-leaf board 63, it is ensured that gas unidirectional outflow prevents the crude oil in oil pipeline 1 from flowing back and flows backward
Into sleeve opening, safety valve 5 is caused to block and lead to 5 failure of safety valve.
A kind of tapping equipment of adjustable well mouth of oil well casing gas of the utility model passes through setting jet pump 4, safety
Valve 5 and check valve 6, can by casing gas control in certain range of pressure values, and excessive gas then with upper oil pipeline into
Enter into petroleum pipeline, while preventing the crude oil in oil pipeline to be back in oil jacket annulus, reach effective use and controlling well
The purpose of mouth casing gas.
Claims (6)
1. a kind of tapping equipment of adjustable well mouth of oil well casing gas, including upper oil pipeline, upper gas pipeline and petroleum pipeline, defeated
Oil pipeline is connected with the upper oil pipeline and upper gas pipeline respectively；It is penetrated it is characterized in that, being provided on the petroleum pipeline
Stream pump, leads on the pipeline between jet pump in upper gas pipeline and is disposed with safety valve and upper tracheae according to gas flow direction
Line check valve.
2. a kind of tapping equipment of adjustable well mouth of oil well casing gas as described in claim 1, which is characterized in that described to penetrate
Stream pump includes jet pump ontology and is arranged in the intrinsic inner cavity spout of jet pump.
3. a kind of tapping equipment of adjustable well mouth of oil well casing gas as claimed in claim 2, which is characterized in that in described
The top of chamber spout be it is cylindric, lower part is rounding mesa-shaped.
4. a kind of tapping equipment of adjustable well mouth of oil well casing gas as described in claim 1, which is characterized in that the peace
Full valve includes valve casing, valve ball, spring and handwheel, and valve ball, one end connection of valve ball and spring, spring are equipped in valve casing
The other end connect handwheel.
5. a kind of tapping equipment of adjustable well mouth of oil well casing gas as described in claim 1, which is characterized in that on described
Gas pipeline check valve includes valve body and is mounted on the torque spring and loose-leaf board being connected in valve body.
6. a kind of tapping equipment of adjustable well mouth of oil well casing gas according to any one of claims 1 to 5, feature
It is, further includes metering pipeline, metering pipeline is connected with the upper oil pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639711.7U CN208294498U (en) | 2018-05-02 | 2018-05-02 | A kind of tapping equipment of adjustable well mouth of oil well casing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639711.7U CN208294498U (en) | 2018-05-02 | 2018-05-02 | A kind of tapping equipment of adjustable well mouth of oil well casing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294498U true CN208294498U (en) | 2018-12-28 |
Family
ID=64703976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639711.7U Expired - Fee Related CN208294498U (en) | 2018-05-02 | 2018-05-02 | A kind of tapping equipment of adjustable well mouth of oil well casing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294498U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826594A (en) * | 2019-01-28 | 2019-05-31 | 河北宏龙环保科技有限公司 | Casing gas collection device and application method |
| CN111425181A (en) * | 2020-05-09 | 2020-07-17 | 新疆华隆油田科技股份有限公司 | Method for treating and recycling poisonous and flammable gas in oil well produced liquid and special device |
| CN112145485A (en) * | 2020-09-07 | 2020-12-29 | 长江大学 | Ejector device with adjustable nozzle cross-sectional area |
| CN114427530A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Device and method for reducing back pressure in cooperative work with mechanical oil production well |
-
2018
- 2018-05-02 CN CN201820639711.7U patent/CN208294498U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826594A (en) * | 2019-01-28 | 2019-05-31 | 河北宏龙环保科技有限公司 | Casing gas collection device and application method |
| CN111425181A (en) * | 2020-05-09 | 2020-07-17 | 新疆华隆油田科技股份有限公司 | Method for treating and recycling poisonous and flammable gas in oil well produced liquid and special device |
| CN111425181B (en) * | 2020-05-09 | 2023-07-14 | 新疆华隆油田科技股份有限公司 | Method and special device for treating and reutilizing poisonous and inflammable gas in oil well produced liquid |
| CN112145485A (en) * | 2020-09-07 | 2020-12-29 | 长江大学 | Ejector device with adjustable nozzle cross-sectional area |
| CN114427530A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Device and method for reducing back pressure in cooperative work with mechanical oil production well |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181228 Termination date: 20190502 |