Device for recycling vent natural gas by hydrate method

A technology for venting natural gas and hydrate, applied in gas fuel, petroleum industry, fuel and other directions, can solve the problems of long investment recovery period, complicated operation and maintenance, and can only be vented for a long time, and achieves simple transportation process, simple and easy process flow. effect of operation

Active Publication Date: 2013-08-21
南通东湖国际旅行社有限公司
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  • Abstract
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Problems solved by technology

2) In the gas-gathering station, the gas in the pipe must be vented due to in-station maintenance and equipment maintenance and replacement
3) Some oil fields have low associated gas content, are located in remote areas, and have inconvenient transportation. In addition, domestic oil and gas fields have been in rolling development and lack facilities for recovering natural gas from test

Method used

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  • Device for recycling vent natural gas by hydrate method

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Embodiment Construction

[0026] The implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] As shown in the accompanying drawings, the recovery method is: the device of the present invention consists of a filter 1, a one-way valve, a gas buffer tank 3, a self-operated pressure valve 5, a compressor, an evaporator, a hydration separation unit 10, a gas storage Tank 12, two-way air valve, stop valve, slurry pump, screw pump 32, Laval spray valve 33, surfactant storage tank 34, grinder 35; ice making device 36, vertical three-phase separator 40; storage 43. Air cooler 45, throttle valve 46, flow distributor, water pump 48, one-way valve; two-way valve 52; gas-liquid separator 55, hydration recovery unit and saturation stabilization unit composition 60.

[0028] It includes two processes of material circulation and refrigeration cycle; material circulation: the emptied natural gas enters the pipeline, and passes through the filter 1 t...

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Abstract

The invention relates to recycling of oil field vent natural gas, and particularly relates to a device for recycling vent natural gas in the production process of an oil-gas field. The device comprises a filter, a one-way gas valve, a gas buffer tank, a self-operated pressure valve, a compressor, an evaporator, a hydration separating unit, a gas storage tank, a bi-directional gas valve, a stop valve, a slurry pump, a screw pump, a laval spray valve, a surface active agent storage tank, a crusher, an ice-making device, a vertical type three-phase separator, a storage cavern, an air cooler, a throttle valve, a flow distributor, a water pump, a one-way valve, a bi-directional valve, a gas-liquid separator, a hydration recycling unit and a saturation stability unit. Through material cycle and refrigeration cycle of the device, the vent natural gas can be effectively recycled.

Description

technical field [0001] The invention relates to recovery of vented natural gas in an oil field, in particular a set of devices for recovering vented natural gas in the production process of an oil and gas field. Background technique [0002] During the production process of oil and gas fields, there is a lot of natural gas that is vented; according to incomplete statistics, the annual amount of natural gas vented by domestic oil and gas fields reaches 10×10 8 m 3 . In order to improve economic benefits, reduce energy waste, and achieve the goal of energy conservation and emission reduction, it is necessary to rationally recycle and utilize vented natural gas resources. [0003] The vented natural gas mainly comes from three aspects: 1) During the development of gas fields, in order to ensure safe production, the venting of natural gas is inevitable. 2) In the gas-gathering station, the gas in the pipe must be vented due to in-station maintenance and equipment maintenance ...

Claims

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Application Information

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IPC IPC(8): C10L3/10
Inventor 周诗岽余益松王树立李恩田吴志敏赵会军赵书华
Owner 南通东湖国际旅行社有限公司
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