CN104234672A - Compressor extraction system for natural gas well - Google Patents
Compressor extraction system for natural gas well Download PDFInfo
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- CN104234672A CN104234672A CN201410454344.XA CN201410454344A CN104234672A CN 104234672 A CN104234672 A CN 104234672A CN 201410454344 A CN201410454344 A CN 201410454344A CN 104234672 A CN104234672 A CN 104234672A
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- gas well
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Abstract
The invention discloses a compressor extraction system for a natural gas well, relates to the technical field of natural gas extraction, and solves the technical problems of low gas production rate and short life cycle of the gas well. The system comprises a compressor, a gas inlet pipe, a gas outlet pipe and a vent valve; a medium inlet of the compressor is connected with the natural gas well through the gas inlet pipe; a medium outlet of the compressor is connected to the inlet of the vent valve through the gas outlet pipe; the gas inlet pipe is provided with an inlet valve used for controlling the on or off of the gas inlet pipe. The compressor extraction system is characterized in that the medium outlet of the compressor is connected to the natural gas well through a reinjection pipe, and the reinjection pipe is provided with a reinjection valve used for controlling the on or off of the reinjection pipe. The system provided by the invention is suitable for extraction of the natural gas well.
Description
Technical field
The present invention relates to natural gas production technique, particularly relate to a kind of technology of compressor extraction system of natural gas gas well.
Background technology
At present, the collection volume increase pressure-increasing unit mode of natural gas well is all that natural gas is reduced well head back pressure by booster compressor, then carries after natural gas boosting, to reach the object of volume increase to pipe network.
The decay of output can be there is in natural gas well after collecting certain phase, aerogenesis pressure also can decrease, the natural gas flow prompt drop produced of natural gas well is low also can be decreased, the band liquid ability of gas flow also declines thereupon, thus make meeting progressively hydrops in natural gas well, the output of compacting natural gas further; Simultaneously, due to the aerogenesis pressure drop of natural gas well, natural gas cannot smooth delivery of power in gas line network, pressure in natural gas well can be raised, under high pressure, natural gas solubility in a liquid can raise, and output reduces further, under vicious circle like this, the complete shutoff natural gas well of hydrops can be caused, make it to become disused well.
Summary of the invention
For the defect existed in above-mentioned prior art, technical problem to be solved by this invention is to provide one can improve natural gas well output, and can extend the compressor extraction system of the natural gas gas well of natural gas well life cycle.
In order to solve the problems of the technologies described above, the compressor extraction system of a kind of natural gas gas well provided by the present invention, relate to natural gas gas well, this system comprises compressor, air inlet pipe, stack, outlet valve;
The medium entrance of described compressor is through air inlet pipe access natural gas gas well, and the media outlet of compressor receives the import of outlet valve through stack, air inlet pipe is equipped with the admission valve for controlling air inlet pipe break-make;
It is characterized in that: the media outlet of described compressor, through a re-injection pipe access natural gas gas well, re-injection pipe is equipped with the reinjection valve for controlling re-injection pipe break-make.
Further, this system also comprises air inlet side knockout drum, and the medium entrance of described air inlet side knockout drum taps into tracheae, and the medium entrance of compressor is received in the gas outlet of air inlet side knockout drum.
Further, this system also comprises give vent to anger side knockout drum, cooler;
Gas cooling line, oil cooling pipe road is built-in with in described cooler, the medium entrance of side knockout drum of giving vent to anger connects the media outlet of compressor, the leakage fluid dram of side knockout drum of giving vent to anger receives the lubricating oil inlet of compressor through the oil cooling pipe road of cooler, stack and re-injection pipe are received through the gas cooling line of cooler in the gas outlet of side knockout drum of giving vent to anger.
The compressor extraction system of natural gas gas well provided by the invention, can utilize re-injection pipe that high-pressure natural gas re-injection is entered natural gas gas well, thus the pressure promoted in natural gas gas well, and then promote air-flow band liquid ability, hydrops in well can be discharged rapidly, effectively can improve the output of natural gas well, the life cycle of natural gas well can also be extended.
Accompanying drawing explanation
Fig. 1 is the structural representation of the compressor extraction system of the natural gas gas well of the embodiment of the present invention.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and be described in further detail embodiments of the invention, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in.
As shown in Figure 1, the compressor extraction system of a kind of natural gas gas well that the embodiment of the present invention provides, relate to natural gas gas well 1, this system comprises compressor 2, air inlet pipe 3, stack 4, outlet valve 6;
The medium entrance of described compressor 2 accesses natural gas gas well 1 through air inlet pipe 3, and the media outlet of compressor 2 receives the import of outlet valve 6 through stack 4, air inlet pipe 3 is equipped with the admission valve 5 for controlling air inlet pipe break-make;
It is characterized in that: the media outlet of described compressor 2 accesses natural gas gas well 1 through a re-injection pipe 7, re-injection pipe 7 being equipped with the reinjection valve 8 for controlling re-injection pipe break-make.
In the embodiment of the present invention, also comprise air inlet side knockout drum 9, the medium entrance of described air inlet side knockout drum 9 taps into tracheae 3, and the medium entrance of compressor 2 is received in the gas outlet of air inlet side knockout drum 9.
In the embodiment of the present invention, also comprise side knockout drum 11 of giving vent to anger, cooler 10;
Gas cooling line, oil cooling pipe road is built-in with in described cooler 10, the medium entrance of side knockout drum 11 of giving vent to anger connects the media outlet of compressor 2, the leakage fluid dram of side knockout drum 11 of giving vent to anger receives the lubricating oil inlet of compressor 2 through the oil cooling pipe road of cooler 10, stack 4 and re-injection pipe 7 are received through the gas cooling line of cooler 10 in the gas outlet of side knockout drum 11 of giving vent to anger.
During embodiment of the present invention work, by the outlet of outlet valve 6 access gas line network, the aerogenesis of natural gas gas well 1 can be input to gas line network, its operating principle is as follows:
Under conventional aerogenesis state, admission valve 5 and outlet valve 6 are opened, and reinjection valve 8 is closed, now the aerogenesis of natural gas gas well 1 is introduced into air inlet side knockout drum 9 and carries out gas-liquid separation, isolated natural gas enters compressor 2, mix with lubrication oil in the working chamber of compressor, gas-liquid separation is carried out by transporting to side knockout drum 11 of giving vent to anger after compressor boost to the discharge pressure reaching gas line network, isolated lubrication oil participates in next circulation back into compressor after cooler 10 cools, isolated natural gas then enters gas line network by outlet valve 6 after cooler 10 cools,
In gas transmission process, the well head pressure of natural gas gas well 1 also decreases, thus natural gas solubility in a liquid can be reduced, make it further precipitation, can improve gas production, the pressurization of compressor can improve the flow velocity of well head natural gas, gas flow flow velocity is reached and is carried into ground critical flow velocity higher than liquid, the band liquid ability of air-flow can be improved, liquid is carried upper ground surface, reaches the object of discharge opeing volume increase and stable yields;
While the gas production of natural gas gas well 1 increases, its Liquid output also can increase, when on the lifting rate that the Liquid output of natural gas gas well 1 is greater than compressor in limited time, liquid in natural gas well can build up, gas production is pressed again, now relies on compressor cannot obtain good effect of increasing production completely, open reinjection valve 8 immediately, and close outlet valve 6, thus system is switched to back pressure re-injection state from conventional aerogenesis state;
Under back pressure re-injection state, natural gas gas well 1 is entered 7 times by re-injection pipe by the high-pressure natural gas after compressor boost, thus the pressure in natural gas gas well is got a promotion, and then make the critical flow velocity by liquid is carried into ground by air-flow require to reduce, the liquid being carried into ground by air-flow also increases thereupon, realize the discharge opeing of natural gas gas well, and while the pressure in natural gas gas well gets a promotion, the natural gas be dissolved in liquid also can increase, because the pressure in air inlet pipe 3 will lower than natural gas gas well, after liquid enters air inlet pipe 3 with air-flow, natural gas can be separated out from liquid, thus add the output of natural gas, further increase the band liquid ability of flow velocity and air-flow, reach the object of discharge opeing volume increase, after back pressure re-injection after a while, liquid level in natural gas well is reduced to compression function and normally increases production duty, now open outlet valve 6, and close reinjection valve 8, thus system is switched back conventional aerogenesis state from back pressure re-injection state, now can again to gas line network gas transmission.
The switching reciprocal between conventional aerogenesis state and back pressure re-injection state by system, the hydrops in natural gas well is made just progressively to take ground out of by daily production work, effectively can improve the output of natural gas well, reach the effect of discharge opeing volume increase and stable yields, greatly can extend the life cycle of natural gas well simultaneously, Gas Industry be had to the meaning of positive important.
Claims (3)
1. a compressor extraction system for natural gas gas well, relate to natural gas gas well, this system comprises compressor, air inlet pipe, stack, outlet valve;
The medium entrance of described compressor is through air inlet pipe access natural gas gas well, and the media outlet of compressor receives the import of outlet valve through stack, air inlet pipe is equipped with the admission valve for controlling air inlet pipe break-make;
It is characterized in that: the media outlet of described compressor, through a re-injection pipe access natural gas gas well, re-injection pipe is equipped with the reinjection valve for controlling re-injection pipe break-make.
2. the compressor extraction system of natural gas gas well according to claim 1, it is characterized in that: this system also comprises air inlet side knockout drum, the medium entrance of described air inlet side knockout drum taps into tracheae, and the medium entrance of compressor is received in the gas outlet of air inlet side knockout drum.
3. the compressor extraction system of natural gas gas well according to claim 1, is characterized in that: this system also comprises give vent to anger side knockout drum, cooler;
Gas cooling line, oil cooling pipe road is built-in with in described cooler, the medium entrance of side knockout drum of giving vent to anger connects the media outlet of compressor, the leakage fluid dram of side knockout drum of giving vent to anger receives the lubricating oil inlet of compressor through the oil cooling pipe road of cooler, stack and re-injection pipe are received through the gas cooling line of cooler in the gas outlet of side knockout drum of giving vent to anger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454344.XA CN104234672A (en) | 2014-09-09 | 2014-09-09 | Compressor extraction system for natural gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454344.XA CN104234672A (en) | 2014-09-09 | 2014-09-09 | Compressor extraction system for natural gas well |
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| Publication Number | Publication Date |
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| CN104234672A true CN104234672A (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410454344.XA Pending CN104234672A (en) | 2014-09-09 | 2014-09-09 | Compressor extraction system for natural gas well |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019190A (en) * | 2017-12-25 | 2018-05-11 | 中山乐满石油设备有限公司 | A kind of totally-enclosed mixes defeated decompression circulation gas lift system |
| CN111691837A (en) * | 2020-06-18 | 2020-09-22 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | System and method for prolonging life cycle of stratum energy-depleted gas well |
| CN112012702A (en) * | 2020-10-23 | 2020-12-01 | 盘锦华晨石油装备制造有限公司 | Pressurization and yield increase system for low-pressure gas well |
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| US20070151454A1 (en) * | 2005-07-19 | 2007-07-05 | Marwitz Herman T | Mobile nitrogen generation device |
| CN201884015U (en) * | 2010-12-10 | 2011-06-29 | 中国石油天然气股份有限公司 | Liquid drainage and gas production device for natural gas well |
| CN201963276U (en) * | 2011-03-10 | 2011-09-07 | 中国石油天然气股份有限公司 | Pressurized gas lift drainage gas production device |
| CN202832456U (en) * | 2012-07-26 | 2013-03-27 | 张振荣 | Pressure reduction and yield increase device for natural gas well mouth |
| CN203066945U (en) * | 2013-01-24 | 2013-07-17 | 张坤先 | Single-well pressurized gas production device |
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2014
- 2014-09-09 CN CN201410454344.XA patent/CN104234672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070151454A1 (en) * | 2005-07-19 | 2007-07-05 | Marwitz Herman T | Mobile nitrogen generation device |
| CN201884015U (en) * | 2010-12-10 | 2011-06-29 | 中国石油天然气股份有限公司 | Liquid drainage and gas production device for natural gas well |
| CN201963276U (en) * | 2011-03-10 | 2011-09-07 | 中国石油天然气股份有限公司 | Pressurized gas lift drainage gas production device |
| CN202832456U (en) * | 2012-07-26 | 2013-03-27 | 张振荣 | Pressure reduction and yield increase device for natural gas well mouth |
| CN203066945U (en) * | 2013-01-24 | 2013-07-17 | 张坤先 | Single-well pressurized gas production device |
Non-Patent Citations (1)
| Title |
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| 郁永章: "《压缩机工程手册》", 31 January 2012, 中国石化出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019190A (en) * | 2017-12-25 | 2018-05-11 | 中山乐满石油设备有限公司 | A kind of totally-enclosed mixes defeated decompression circulation gas lift system |
| CN111691837A (en) * | 2020-06-18 | 2020-09-22 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | System and method for prolonging life cycle of stratum energy-depleted gas well |
| CN112012702A (en) * | 2020-10-23 | 2020-12-01 | 盘锦华晨石油装备制造有限公司 | Pressurization and yield increase system for low-pressure gas well |
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Application publication date: 20141224 |