CN202832456U - Pressure reduction and yield increase device for natural gas well mouth - Google Patents
Pressure reduction and yield increase device for natural gas well mouth Download PDFInfo
- Publication number
- CN202832456U CN202832456U CN 201220363904 CN201220363904U CN202832456U CN 202832456 U CN202832456 U CN 202832456U CN 201220363904 CN201220363904 CN 201220363904 CN 201220363904 U CN201220363904 U CN 201220363904U CN 202832456 U CN202832456 U CN 202832456U
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- liquid separator
- natural gas
- pressure
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Abstract
The utility model relates to a pressure reduction and yield increase device for a natural gas well mouth, which comprises a gas-liquid separator, an internal-combustion engine, a gas compressor and a pressure-stabilizing tank, wherein an inlet of the gas-liquid separator is connected with the well mouth by a liquid inlet pipe; a first gas outlet is formed at the top of the gas-liquid separator and connected with an inlet of the pressure-stabilizing tank by an exhaust pipe; a check valve is mounted on the exhaust pipe; an outlet of the pressure-stabilizing tank is connected with a fuel inlet of the internal-combustion engine by a pipe; a pressure-stabilizing regulating valve is arranged on the pipe; a second gas outlet is formed at the middle upper part of the gas-liquid separator and connected with a gas inlet of the gas compressor by a pipeline; a pressure regulating valve is mounted on the pipeline power supply between the second gas outlet and the gas inlet of the gas compressor; and the internal-combustion engine is a power source of the gas compressor. As outgoing natural gas is continuously compressed and transmitted, the pressure under a well is reduced, and the natural gas under the well is drawn out to achieve a yield increase purpose; raw materials are obtained locally; less yield is consumed; and a yield increase effect can be achieved.
Description
Technical field
The utility model relates to the oil-gas mining field, is specifically related to the increasing device of the natural gas well.
Background technology
In the recovery process of the natural gas well, carrying out along with exploitation, comprise free water, hydro carbons condensation hydrops at night and condensation water in the stratum etc. liquid can enter pit shaft and form pit shaft hydrops or gas well hydrops, cause the poor rapid decline of well head and bottom pressure, make output gas can't flow to well head, gas well output reduces rapidly.Along with the accumulation of hydrops, gas production gradually reduces, until there is not output.
In order to improve the gas well gas production, usually adopt drainage gas recovery, the principle of existing drainage gas recovery is exactly when the energy shortage of gas well self is taken ground out of with liquid in well, by artificially making the liquid in the gas well discharge well head to the gas well makeup energy.Existing water pumping gas production method comprises optimizes tubing string water pumping gas production, foam drainage gas recovery, plunger lift water pumping gas production and mechanical water pumping gas production.No matter adopt which kind of water pumping gas production method, final purpose is exactly the pressure differential that increases shaft bottom and well head, thereby increases the output that reservoir gas enters the tolerance increase gas well of pit shaft.In using at the scene, the machinery water pumping gas production is the method for comparatively commonly using, the method is exactly with at the bottom of the direct lower going-into-well of deep well pump, the shaft bottom hydrops is drawn into ground, the defective of this method is very obvious, being lowered to of pump is subjected to the impact of well depth, hole deviation factor obvious, and difficulty of construction is high and operating cost is high, and maintenance is inconvenient.
The utility model content
The purpose of this utility model is to provide a kind of natural gas well head decompression increasing device, by reducing well head pressure, thereby improves the pressure reduction of shaft bottom and well head, reaches draining and increases purpose and the effect of gas.
The technical solution of the utility model is: a kind of natural gas well head decompression increasing device comprises gas-liquid separator, internal combustion engine, gas compressor and vacuum tank; The entrance of gas-liquid separator links to each other with well head by the feed liquor pipeline; The top of gas-liquid separator is provided with the first gas outlet, and the first gas outlet is connected with the vacuum tank entrance by stack, and flap valve is housed on the stack, and the vacuum tank outlet is provided with controlling valve of voltage regulation by the fuel inlet of pipe connection internal combustion engine on the described pipe; The middle and upper part of gas-liquid separator is provided with the second gas outlet, and the second gas outlet is equipped with pressure-regulating valve through the air inlet port of pipeline connection gas compressor on the pipeline between the second gas outlet and the gas compressor air inlet port; Internal combustion engine is the power source of gas compressor.Described natural gas well head decompression increasing device also comprises the cooling unit that the natural gas after gas compressor and the supercharging is cooled off.Preferably, gas-liquid separator, internal combustion engine, gas compressor, vacuum tank are installed on the pedestal.Described internal combustion engine is gas internal-combustion engine.Internal combustion engine can be replaced with motor.
The utility model has the advantages that and utilize the interior output gas of well as the power source fuel of gas compressor, gather materials on the spot, consume the effect that less output gas just can obtain draining and volume increase, simultaneously, simple compact, the transportation and easy for installation of device of the present utility model.
Description of drawings
The schematic diagram of a kind of natural gas well head decompression of Fig. 1 increasing device
1 gas-liquid separator, 2 internal combustion engines, 3 gas compressors, 4 feed liquor pipelines, 5 well heads
13 second gas outlets, 6 stack 7 vacuum tanks, 8 pedestal 11 entrances, 12 first gas outlets
14 leakage fluid drams
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Natural gas well head decompression increasing device of the present utility model comprises gas-liquid separator 1, internal combustion engine 2, gas compressor 3.The entrance 11 of gas-liquid separator 1 links to each other with well head 5 by feed liquor pipeline 4, and the fluid (comprising hydrops and natural gas) of output enters gas-liquid separator 1 by feed liquor pipeline 4 in the pit shaft, and carries out gas-liquid separation in gas-liquid separator 1.Be provided with the first gas outlet 12 at the top of gas-liquid separator 1, the isolated natural gas of part enters stack 6 by the first gas outlet 12.The natural gas of being discharged by stack 6 enters vacuum tank 7 by vacuum tank 7 entrances, on the stack 6 flap valve is housed, vacuum tank 7 remains at the gaseous-pressure that is suitable for internal combustion engine 2 uses with the pressure of natural gas in it, the fuel inlet that the fuel that uses as internal combustion engine 2 from vacuum tank 7 outlets natural gas out enters internal combustion engine 2 through pipe is provided with controlling valve of voltage regulation on the described pipe.
The middle and upper part of gas-liquid separator 1 is provided with the second gas outlet 13, the second gas outlet 13 connects the air inlet port of gas compressor 3 through pipeline, the natural gas of discharging from the second gas outlet compresses supercharging in gas compressor 3, the natural gas after the compression supercharging is sent to measuring station.On the pipeline between the second gas outlet 13 and gas compressor 3 air inlet ports pressure-regulating valve is installed.
Internal combustion engine 2 utilizes the natural gas of vacuum tank 7 outputs to carry out work as power, and internal combustion engine 2 is the power source of gas compressor 3, and the power of generation is exported to gas compressor 3 with 3 work of driving gas compressor.Gas-liquid separator 1 isolated liquid is discharged by the leakage fluid dram 14 of bottom.
During gas compressor 3 work, 3 pairs of gas-liquid separators of gas compressor, 1 interior generation swabbing action, thereby well head is formed swabbing action, well head pressure is reduced, and then the hydrops in the pit shaft constantly is pumped in the gas-liquid separator 1, so just can increase the pressure reduction of the interior shaft bottom of pit shaft and well head, increase the gas production of gas well.
Other equipment that the power that internal combustion engine 2 produces also can be well head provide power, for example, and the cooling unit that the natural gas after gas compressor 3 and the supercharging is cooled off.
Can preferentially be, the equipment such as gas-liquid separator 1, internal combustion engine 2, gas compressor 3, vacuum tank 7, cooling unit can be installed on the pedestal 8, thereby form the skid-mounted type system, so that install and transportation.
Basic principle of the present utility model, principal character and advantage of the present utility model have more than been described.Those skilled in the art should understand; the utility model is not restricted to the described embodiments; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.
Claims (5)
1. a natural gas well head decompression increasing device is characterized in that: comprise gas-liquid separator (1), internal combustion engine (2), gas compressor (3) and vacuum tank (7); The entrance (11) of gas-liquid separator (1) links to each other with well head (5) by feed liquor pipeline (4); The top of gas-liquid separator (1) is provided with the first gas outlet (12), the first gas outlet (12) is connected with vacuum tank (7) entrance by stack (6), stack is equipped with flap valve on (6), vacuum tank (7) outlet is provided with controlling valve of voltage regulation by the fuel inlet of pipe connection internal combustion engine (2) on the described pipe; The middle and upper part of gas-liquid separator (1) is provided with the second gas outlet (13), the second gas outlet (13) is equipped with pressure-regulating valve through the air inlet port of pipeline connection gas compressor (3) on the pipeline between the second gas outlet (13) and gas compressor (3) air inlet port; Internal combustion engine (2) is the power source of gas compressor (3).
2. natural gas well head decompression increasing device as claimed in claim 1 is characterized in that: also comprise the cooling unit that the natural gas after gas compressor (3) and the supercharging is cooled off.
3. natural gas well head as claimed in claim 1 decompression increasing device, it is characterized in that: gas-liquid separator (1), internal combustion engine (2), gas compressor (3), vacuum tank (7) are installed on the pedestal (8).
4. such as claim 1,2 or 3 described natural gas well head decompression increasing devices, it is characterized in that: described internal combustion engine (2) is gas internal-combustion engine.
5. such as claim 1,2 or 3 described natural gas well head decompression increasing devices, it is characterized in that: described internal combustion engine (2) is replaced with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363904 CN202832456U (en) | 2012-07-26 | 2012-07-26 | Pressure reduction and yield increase device for natural gas well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363904 CN202832456U (en) | 2012-07-26 | 2012-07-26 | Pressure reduction and yield increase device for natural gas well mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832456U true CN202832456U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220363904 Expired - Fee Related CN202832456U (en) | 2012-07-26 | 2012-07-26 | Pressure reduction and yield increase device for natural gas well mouth |
Country Status (1)
| Country | Link |
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| CN (1) | CN202832456U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234672A (en) * | 2014-09-09 | 2014-12-24 | 汉纬尔机械(上海)有限公司 | Compressor extraction system for natural gas well |
| CN105089576A (en) * | 2015-09-14 | 2015-11-25 | 中国石油集团渤海石油装备制造有限公司 | Coalbed methane discharge and mining method and device |
| CN110318711A (en) * | 2019-07-11 | 2019-10-11 | 河南柴油机重工有限责任公司 | A kind of fluid-discharge method and device of the oil/gas well of low yield containing liquid |
| CN110761752A (en) * | 2019-11-21 | 2020-02-07 | 西安德林石油工程有限公司 | Natural gas wellhead pumping and pressurizing method and device |
-
2012
- 2012-07-26 CN CN 201220363904 patent/CN202832456U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234672A (en) * | 2014-09-09 | 2014-12-24 | 汉纬尔机械(上海)有限公司 | Compressor extraction system for natural gas well |
| CN105089576A (en) * | 2015-09-14 | 2015-11-25 | 中国石油集团渤海石油装备制造有限公司 | Coalbed methane discharge and mining method and device |
| CN110318711A (en) * | 2019-07-11 | 2019-10-11 | 河南柴油机重工有限责任公司 | A kind of fluid-discharge method and device of the oil/gas well of low yield containing liquid |
| CN110318711B (en) * | 2019-07-11 | 2023-06-30 | 河南柴油机重工有限责任公司 | Liquid draining method and device for liquid-containing low-yield oil-gas well |
| CN110761752A (en) * | 2019-11-21 | 2020-02-07 | 西安德林石油工程有限公司 | Natural gas wellhead pumping and pressurizing method and device |
| CN110761752B (en) * | 2019-11-21 | 2023-08-22 | 西安德林石油工程有限公司 | Natural gas wellhead air extraction pressurization method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130327 Termination date: 20170726 |