Pressurized recovery unit for flash gas in water of sulfur-bearing gas fields

Abstract

The invention discloses a pressurized recovery device for flash gas in sulfur-containing gas field water, which comprises a gas buffer tank, a pressurization device, a dehydration device, a cold drying device and a return device; the inlet of the pressurization device is connected with the gas buffer tank, The outlet of the pressurization device is connected to the raw gas pipeline; the dehydration device is arranged between the gas buffer tank and the pressurization device; the cold drying device is arranged between the dehydration device and the gas buffer tank; the present invention collects the flash gas in the station, And transported back to the factory for desulfurization treatment, to ensure a uniform flow rate during the flash gas treatment process, thereby ensuring the treatment efficiency and quality of the flash gas, and no waste agent is generated during the treatment process, which can not only avoid environmental pollution caused by other treatment processes, but also Cost savings can be achieved; the invention dehydrates the flash gas first, and then pressurizes and transports the flash gas, avoiding the precipitation of free water during the pressurization process, thereby effectively protecting equipment and reducing production costs.

Description

Pressurized recovery unit for flash gas in water of sulfur-bearing gas fields technical field The present invention relates to natural gas exploitation technical field, especially a kind of pressurized return for flash steam in water of sulfur-containing gas field receiving device. Background technique In the exploitation process of sulphur-containing gas field, the high-pressure sulphur-bearing natural gas produced at the wellhead obtains the liquid part through gas-liquid separation. Sulfur-containing gas field water, the sulfur-containing gas field water is first stored in the gas field water tank in the station, and then transferred to the reinjection station or treatment station. Sour gas field water From the high-pressure separator to the gas field water tank near atmospheric pressure, a part of the water dissolved in the sulfur-containing gas field will be flashed out due to the pressure reduction. H in 2 S, CO 2 and hydrocarbons and other gases, coll...

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Problems solved by technology

[0004] Aiming at the traditional process of flash gas treatment in the station, affected by the characteristics of the flash gas, the purified gas tends to exceed the standard when the solution is absorbed and transferred to water, the operation is complicated, the operation cost is high, and the technical problems of waste agent disposal are difficult. Booster recovery device for flash steam in sour gas field water

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