CN201672252U - Emptied natural gas injection recovery device for gas gathering station - Google Patents
Emptied natural gas injection recovery device for gas gathering station Download PDFInfo
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- CN201672252U CN201672252U CN2010201648199U CN201020164819U CN201672252U CN 201672252 U CN201672252 U CN 201672252U CN 2010201648199 U CN2010201648199 U CN 2010201648199U CN 201020164819 U CN201020164819 U CN 201020164819U CN 201672252 U CN201672252 U CN 201672252U
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Abstract
The utility model relates to an emptied natural gas injection recovery device for a gas gathering station, which is used for natural gas which need to be emptied by a low-pressure gas well for extraction and recovery of a natural gas field. The low-pressing gas well and a high-pressure gas are connected with plug valves by pipelines. The plug valves are connected with throttle valves by pipelines. The throttle valves are connected with throttle needle valves by pipelines. The throttle needle valve connected with the low-pressure gas well and the throttle needle valve connected with the high-pressure gas well are connected in parallel and are connected an inlet of a separator by pipelines. An outlet of the separator is connected with a natural gas gathering pipeline. The pipeline between the throttle valve and the throttle needle valve of the high-pressure gas well is provided with a high-pressure gas inlet which is connected with an injection drainage device by a pipeline. The plug valve connected with the low-pressure gas well is connected with a low-pressure suction inlet of the injection drainage device by a pipeline. An outlet of the injection drainage device is provided with a pipeline which is connected on a pipeline at an inlet of the separator. The utility model has the advantage that the emptied natural gas injection recovery device for the gas gathering station does not use external energy, is used for recovering natural gas emptied by the gas gathering station and realizes recovery of the natural gas which is emptied in the gas gathering station.
Description
Technical field
The utility model relates to the gas-field exploitation technical field, and particularly the gas gathering station field utilizes the high-pressure gas well self-energy in the gas gathering station, and realize reclaiming the remaining part well of calming the anger needs the device of the rock gas of emptying.
Background technique
At present, in the gas field development process, gas gathering station is because maintenance in the station, device maintenance and replacing and the de-plugging of gas well hydrate etc. need, rock gas emptying is inevitable, although the rock gas of emptying is all lighted, the pollution of environment has been dropped to minimum, resource is not fully used.Needing the rock gas of emptying by spray reclaiming the remaining part well of calming the anger, promptly utilizing station inner high voltage gas well, reduce rapidly and treat blow-down pipe pressure, realize the recovery of 70% above emptying rock gas.
The model utility content
The purpose of this utility model is: a kind of gas gathering station emptying natural gas injection recovering device is provided, and the recovery that is used to reclaim gas gathering station emptying rock gas not by the external energy, is reclaimed technology by adopting to spray, and realizes that the emptying rock gas reclaims in the gas gathering station.Utilize the energy of station inner high voltage gas well, reclaim and treat the emptying rock gas.
The technical solution adopted in the utility model is: gas gathering station emptying natural gas injection recovering device, mainly form by stopcock, throttle valve, Throttle needle valve, injection drainage system, separator and pipeline.Low-pressure gas well connects stopcock by pipeline, and stopcock connects throttle valve by pipeline, and throttle valve connects Throttle needle valve by pipeline; High-pressure gas well connects stopcock by pipeline, and stopcock connects throttle valve by pipeline, and throttle valve connects Throttle needle valve by pipeline; The Throttle needle valve parallel connection that the Throttle needle valve that low-pressure gas well connects is connected with high-pressure gas well and be connected the outlet connection gas gathering pipeline of separator with the inlet of separator by pipeline.It is characterized in that: on the throttle valve and the pipeline between the Throttle needle valve of high-pressure gas well, have pipeline to connect the high pressure air inlet of injection drainage system; The stopcock that low-pressure gas well connects connects the low pressure suction port that sprays drainage system by pipeline; The outlet of spraying drainage system has pipeline to be connected on the separator inlet pipeline.
The operating process of summary gas gathering station emptying natural gas injection recovering device: consult Fig. 1.When certain low-pressure gas well need carry out the emptying operation, at first close the Throttle needle valve 3 of high-pressure gas well, pressurized gas enter and spray drainage system 5 high pressure entries, open the stopcock 1 of low-pressure gas well to be dropped a hint simultaneously, close the throttle valve 2 of low-pressure gas well to be dropped a hint; Treat that the emptying rock gas enters and spray drainage system 5 low-pressure inlets, enter separator 4 through spraying drainage system 5 mixed rock gases, outer defeated after the gas-liquid separation, thus realize reducing fast the low-pressure gas well line pressure for the treatment of emptying, the rock gas in can recovery line.When normal gas production is produced, do not enable and spray drainage system 5.
The beneficial effects of the utility model: the utility model gas gathering station emptying natural gas injection recovering device, after being applied to gas field production, have the following advantages: when low-pressure gas well needs the emptying operation, can reduce the low-pressure gas well line pressure for the treatment of emptying fast, thereby reclaim the rock gas for the treatment of in the blow-down pipe, need not make full use of gas gathering station inner high voltage gas well energy by the external energy.Save primary energy, protected environment.Whole operation safety, simple, convenient.
Description of drawings
Fig. 1 is a gas gathering station emptying natural gas injection recovering device schematic representation.
Among the figure, 1. stopcock, 2. throttle valve, 3. Throttle needle valve, 4. separator 5. sprays drainage system.
Embodiment
Embodiment 1: with a gas gathering station emptying natural gas injection recovering device is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model gas gathering station emptying natural gas injection recovering device mainly is made up of stopcock 1, throttle valve 2, Throttle needle valve 3, injection drainage system 5, separator 4 and pipeline.
The four-hole low-pressure gas well is arranged, and every mouthful of low-pressure gas well connects stopcock 1 by pipeline, and stopcock 1 connects throttle valve 2 by pipeline, and throttle valve 2 connects Throttle needle valve 3 by pipeline;
A bite high-pressure gas well is arranged, and high-pressure gas well connects stopcock 1 by pipeline, and stopcock 1 connects throttle valve 2 by pipeline, and throttle valve 2 connects Throttle needle valve 3 by pipeline;
Be connected with pipeline on the throttle valve 2 of high-pressure gas well and the pipeline between the Throttle needle valve 3, this pipeline is connected to the high pressure air inlet that sprays drainage system 5; The stopcock 1 that low-pressure gas well connects connects the low pressure suction port that sprays drainage system 5 by pipeline; The outlet of spraying drainage system 5 has pipeline to be connected on separator 4 suction lines.
Claims (1)
1. gas gathering station emptying natural gas injection recovering device, mainly form by stopcock (1), throttle valve (2), Throttle needle valve (3), injection drainage system (5), separator (4) and pipeline, low-pressure gas well connects stopcock (1) by pipeline, stopcock (1) connects throttle valve (2) by pipeline, and throttle valve (2) connects Throttle needle valve (3) by pipeline; High-pressure gas well connects stopcock (1) by pipeline, and stopcock (1) connects throttle valve (2) by pipeline, and throttle valve (2) connects Throttle needle valve (3) by pipeline; Throttle needle valve (3) parallel connection that the Throttle needle valve (3) that low-pressure gas well connects is connected with high-pressure gas well and be connected the outlet connection gas gathering pipeline of separator (4) by the inlet of pipeline with separator (4); It is characterized in that: the high pressure air inlet that on the pipeline between the throttle valve (2) of high-pressure gas well and the Throttle needle valve (3), has pipeline to be connected to spray drainage system (5); The stopcock (1) that low-pressure gas well connects connects the low pressure suction port that sprays drainage system (5) by pipeline; The outlet of spraying drainage system (5) has pipeline to be connected on separator (4) suction line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201648199U CN201672252U (en) | 2010-04-16 | 2010-04-16 | Emptied natural gas injection recovery device for gas gathering station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201648199U CN201672252U (en) | 2010-04-16 | 2010-04-16 | Emptied natural gas injection recovery device for gas gathering station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672252U true CN201672252U (en) | 2010-12-15 |
Family
ID=43329664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201648199U Expired - Lifetime CN201672252U (en) | 2010-04-16 | 2010-04-16 | Emptied natural gas injection recovery device for gas gathering station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672252U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763403A (en) * | 2015-03-26 | 2015-07-08 | 西安长庆科技工程有限责任公司 | Ground high-low pressure mixed gas-liquid separation system based on multi-reservoir commingling production gas field |
| CN105570685A (en) * | 2015-12-16 | 2016-05-11 | 中国石油大学(北京) | Recovery system and recovery process for vent natural gas of gas gathering station |
| CN112013273A (en) * | 2020-07-30 | 2020-12-01 | 重庆科技学院 | Injection recovery system for planned emptying natural gas of gas transmission station |
-
2010
- 2010-04-16 CN CN2010201648199U patent/CN201672252U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763403A (en) * | 2015-03-26 | 2015-07-08 | 西安长庆科技工程有限责任公司 | Ground high-low pressure mixed gas-liquid separation system based on multi-reservoir commingling production gas field |
| CN104763403B (en) * | 2015-03-26 | 2017-07-25 | 西安长庆科技工程有限责任公司 | A kind of ground high-low pressure gas-liquid mixture piece-rate system that gas production field is closed based on multi-reservoir |
| CN105570685A (en) * | 2015-12-16 | 2016-05-11 | 中国石油大学(北京) | Recovery system and recovery process for vent natural gas of gas gathering station |
| CN112013273A (en) * | 2020-07-30 | 2020-12-01 | 重庆科技学院 | Injection recovery system for planned emptying natural gas of gas transmission station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |