CN102747987A - Sleeve gas collection device and method - Google Patents
Sleeve gas collection device and method Download PDFInfo
- Publication number
- CN102747987A CN102747987A CN2012102281918A CN201210228191A CN102747987A CN 102747987 A CN102747987 A CN 102747987A CN 2012102281918 A CN2012102281918 A CN 2012102281918A CN 201210228191 A CN201210228191 A CN 201210228191A CN 102747987 A CN102747987 A CN 102747987A
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- China
- Prior art keywords
- sleeve
- jet pump
- oil
- sleeve pipe
- well
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- 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.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003208 petroleum Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 abstract description 18
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 241000191291 Abies alba Species 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 241000201295 Euphrasia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The invention discloses a sleeve gas collection device and method. The sleeve gas collection device consists of a jet pump and a check valve, and is characterized in that the jet pump is mounted between a Christmas tree oil outlet valve and an oil conveying pipeline; a gas suction pipe and a sleeve valve are connected through a pipeline; the check valve is arranged in the gas suction pipe; and the fluid can pass only toward the jet pump rather than the opposite direction. The device and method are simple to implement, and meet the technical requirements of the safe production of an oil field; the device is applied to a common pumping unit well or an electric submersible pump well without adding other equipment, the sleeve gas can be effectively collected, and the environmental pollution and resource waste are reduced; and moreover, after the pumping of an oil well is stopped, the oil in the oil conveying pipeline does not flow back to the sleeve.
Description
Technical field
The present invention relates to a kind of apparatus and method that well casing gas is collected, relate in particular to a kind of apparatus and method of collecting in the face of well casing gas on ground.
Background technology
Contain a considerable amount of dissolved natural gas in the crude oil, in recovery process, these solution gas can decompose out with the form of gas gradually and form free natural gas, accumulate in the annular space (to call the oil jacket annular space in the following text) of oil pipe and sleeve pipe, are commonly called as sleeve pipe gas.If these sleeve pipe gas are not discharged, will influence the ordinary production of oil well; If directly be discharged in the atmosphere, will pollute environment, also caused the waste of resource.Chinese patent 200920146986.8 has been announced a kind of well casing gas gathering-device, can sleeve pipe gas be drawn in the production flow line, still; This device is used on the rod-pumped well; Because the rod-pumped well flow is interrupted shape, when oil pumper was descending, flow stopped in the pipeline; This device also just stops suction, and the fluid in the pipeline just can flow backwards in the sleeve pipe through air inlet port.In addition, when bumping off a well, the fluid in the pipeline will constantly flow backwards in the sleeve pipe.So this device is also impracticable aborning.
Summary of the invention
This make eye bright be exist fluid can blow back into the problem of sleeve pipe to the said well casing gas gathering-device of above-mentioned patent from air inlet port; A kind of sleeve pipe gas gathering-device and method are provided; Not only can effectively collect sleeve pipe gas, can also avoid the pipeline inner fluid to blow back in the sleeve pipe.
The present invention addresses the above problem the technical scheme that is adopted to be: this sleeve pipe gas gathering-device is made up of jet pump and one way valve; It is characterized in that jet pump is installed between fuel-displaced valve of production tree and the petroleum pipeline; Admission pipe is connected through pipeline with sleeve valve; Install one way valve in the suction line, fluid can only pass through to the jet pump direction, can not oppositely pass through.When oil well open take out after, the fluid with certain pressure and speed gets into jet pump, forms negative pressure in the jet pump; One-way valve opens in the admission pipe; Natural gas is inhaled in the jet pump through admission pipe in the sleeve pipe, after wherein fluid mixes, is discharged in the petroleum pipeline; When bumping off a well or oil pumper when descending, whole pipeline inner fluid stops to flow, and does not have fluid to get into jet pump, and jet pump quits work, closed check valve, and the petroleum pipeline inner fluid can not blow back in the sleeve pipe through admission pipe.
Preferably, said one way valve is provided with back-moving spring.
The invention has the beneficial effects as follows: this apparatus and method construction is simple; Meet the technical requirements that oilfield safety is produced, be used on conventional pumping unit well or the electric immersible pump well, need not to increase miscellaneous equipment; Ability effective collection sleeve pipe gas; Reduce the environment pollution and the wasting of resources, and after bumping off a well, the petroleum pipeline inner fluid can not flow backwards in sleeve pipe.
Description of drawings
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, below in conjunction with the accompanying drawing and the specific embodiment the present invention is further described.
Fig. 1 is the sketch map of this sleeve pipe gas gathering-device and method embodiment on electric immersible pump well.
Fig. 2 is the structure chart of an embodiment of this sleeve pipe gas gathering-device.
Among the figure: 1. fuel-displaced valve, 2. jet pump, 3. admission pipe, 4. sleeve valve, 5. sleeve pipe, 6. petroleum pipeline, 7. one way valve, 8. back-moving spring.
The specific embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is the scheme of installation of this sleeve pipe gas gathering-device embodiment on electric immersible pump well, and Fig. 2 is the structure chart of an embodiment of sleeve pipe gas gathering-device.One jet pump 2 is installed between fuel-displaced valve 1 of production tree and petroleum pipeline 5; Admission pipe 3 and sleeve valve 4 are connected through pipeline, install one way valve 7 in the admission pipe 3, install back-moving spring 8 in the one way valve 7; Fluid can only pass through to jet pump 2 directions, can not oppositely pass through.When oil well open take out after, the fluid with certain pressure and speed gets into jet pump 2, forms negative pressure in the jet pump 2; One way valve 7 in the admission pipe 3 is opened; Natural gases are inhaled in the jet pump 2 through admission pipe 3 in the sleeve pipe 5, after wherein fluid mixes, are discharged in the petroleum pipeline 6; When bumping off a well or oil pumper when descending, whole pipeline inner fluid stops to flow, and does not have fluid to get into jet pump 2, and jet pump 2 quits work, and one way valve 7 is closed, and petroleum pipeline 6 inner fluids can not blow back in the sleeve pipe 5 through admission pipe 3.
More than to sleeve pipe gas gathering-device provided by the present invention and method; Carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. sleeve pipe gas gathering-device and method; Sleeve pipe gas gathering-device is made up of jet pump and one way valve; It is characterized in that: jet pump is installed between fuel-displaced valve of production tree and the petroleum pipeline, and admission pipe is connected through pipeline with sleeve valve, installs one way valve in the suction line.
2. sleeve pipe gas gathering-device according to claim 1 and method is characterized in that: said one way valve is provided with back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102281918A CN102747987A (en) | 2012-07-04 | 2012-07-04 | Sleeve gas collection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102281918A CN102747987A (en) | 2012-07-04 | 2012-07-04 | Sleeve gas collection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102747987A true CN102747987A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102281918A Pending CN102747987A (en) | 2012-07-04 | 2012-07-04 | Sleeve gas collection device and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102747987A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN104775790A (en) * | 2015-04-02 | 2015-07-15 | 张果 | Sleeve gas exhausting device |
| 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 |
| CN111622718A (en) * | 2020-07-06 | 2020-09-04 | 山东嘉信德石油科技有限公司 | Unpowered maintenance-free casing pressure reduction device and mechanical production well comprising same |
| CN112145485A (en) * | 2020-09-07 | 2020-12-29 | 长江大学 | Ejector device with adjustable nozzle cross-sectional area |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741397A (en) * | 1986-12-15 | 1988-05-03 | Texas Independent Tools & Unlimited Services, Incorporated | Jet pump and technique for controlling pumping of a well |
| US6119781A (en) * | 1998-02-13 | 2000-09-19 | Elf Exploration Production | Method of operating an oil and gas production well activated by a pumping system |
| CN201041019Y (en) * | 2007-06-11 | 2008-03-26 | 蔺新良 | Oilfield Casing Gas Automatic Recovery System |
| CN201228539Y (en) * | 2008-07-29 | 2009-04-29 | 中国石化股份胜利油田分公司河口采油厂 | recovery system for well head oil gas |
| CN202081866U (en) * | 2011-04-06 | 2011-12-21 | 中国石油大学(华东) | Spray drainage type sleeve gas reclaiming device |
| CN202108480U (en) * | 2011-06-25 | 2012-01-11 | 吴娟 | Constant pressure gas discharge wellhead device of oil well sleeve |
-
2012
- 2012-07-04 CN CN2012102281918A patent/CN102747987A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741397A (en) * | 1986-12-15 | 1988-05-03 | Texas Independent Tools & Unlimited Services, Incorporated | Jet pump and technique for controlling pumping of a well |
| US6119781A (en) * | 1998-02-13 | 2000-09-19 | Elf Exploration Production | Method of operating an oil and gas production well activated by a pumping system |
| CN201041019Y (en) * | 2007-06-11 | 2008-03-26 | 蔺新良 | Oilfield Casing Gas Automatic Recovery System |
| CN201228539Y (en) * | 2008-07-29 | 2009-04-29 | 中国石化股份胜利油田分公司河口采油厂 | recovery system for well head oil gas |
| CN202081866U (en) * | 2011-04-06 | 2011-12-21 | 中国石油大学(华东) | Spray drainage type sleeve gas reclaiming device |
| CN202108480U (en) * | 2011-06-25 | 2012-01-11 | 吴娟 | Constant pressure gas discharge wellhead device of oil well sleeve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN104074494B (en) * | 2014-07-16 | 2016-06-22 | 檀长江 | Combination type well casing gas recovery device |
| CN104775790A (en) * | 2015-04-02 | 2015-07-15 | 张果 | Sleeve gas exhausting device |
| 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 |
| CN111622718A (en) * | 2020-07-06 | 2020-09-04 | 山东嘉信德石油科技有限公司 | Unpowered maintenance-free casing pressure reduction device and mechanical production well comprising same |
| CN111622718B (en) * | 2020-07-06 | 2024-10-18 | 山东嘉信德石油科技有限公司 | Unpowered maintenance-free casing depressurization device and mechanical production well comprising same |
| CN112145485A (en) * | 2020-09-07 | 2020-12-29 | 长江大学 | Ejector device with adjustable nozzle cross-sectional area |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |