Exploitation system of natural gas with high concentration of hydrogen sulfide

Abstract

The invention discloses an exploitation system of natural gas with high concentration of hydrogen sulfide. The exploitation system of the natural gas with high concentration of hydrogen sulfide at least comprises the following steps that 1, treatment liquid is transported; 2, the natural gas containing hydrogen sulfide is transported; 3, purification treatment is performed; 4, treatment liquid containing hydrogen sulfide is discharged at the bottom of a well; 5, precipitation treatment is performed; 6, filtration purification is performed; 7, sulfur is recovered; 8, purification is performed;and 9, circulation is further performed. The exploitation system of the natural gas with high concentration of hydrogen sulfide can achieve exploitation and purification of the natural gas with high concentration of hydrogen sulfide, pipeline anti-corrosion and sulfur recovery and the like at a time, reduces the difficulty of exploitation and avoids the harm caused by hydrogen sulfide.

Description

technical field [0001] The invention relates to the technical field of application of natural gas extraction systems, in particular to an extraction system for natural gas with high hydrogen sulfide content. Background technique [0002] my country's high hydrogen sulfide natural gas resources are huge, accounting for about 1 / 6 of my country's total proven natural gas reserves, mainly distributed in Sichuan Basin and Bohai Bay Basin. With the intensification of exploration efforts, the proven reserves of natural gas with high hydrogen sulfide content in my country will increase rapidly. More than 90% of the natural gas in the Sichuan-Chongqing region contains hydrogen sulfide, and some gas wells have hydrogen sulfide as high as 17%. Hydrogen sulfide is one of the main pollutants in the atmosphere and the chief culprit of acid rain. It is a highly irritating and highly toxic gas that will seriously threaten personal safety. Under normal conditions, the safe limit of hydroge...

AI Technical Summary

Problems solved by technology

Foreign high-sulfur gas fields have been developed for more than half a century, and a set of relatively complete development technologies and complete systems have been gradually established. However, the development technology of high-sulfur gas fields in my country is not yet complete, and the safety and management systems need to be improved. great development difficulty

Especially for the purification of high-sulfur natural gas, there is no mature technology in China to learn from, and it has become a bottleneck in the development of high-sulfur natural gas

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