Research and Application on Optimization of Injection Production Process for Underground Gas Storage

doi:10.11885/j.issn.1674-5086.2022.05.17.03

Abstract

Abstract: The construction of gas storage is of great strategic significance to the safe and balanced gas supply of the gas supply pipeline network, and plays a pivotal role in natural gas peak shaving. At present, there are some problems in the process of gas storage, such as the potential safety hazard of compressor unit venting to air emission, the exceeding of booster gas lubricating oil, the exceeding of light hydrocarbon of produced gas, emission of tail gas from glycol regeneration system to air, salt accumulation corrosion of gathering and transmission pipeline and so on. For the venting of the middle body, a venting ejection device is set to lead the emissions to the flare for centralized discharge, avoiding the hidden dangers of the accumulation of combustible gas in the station; For excessive lubricating oil content (volume ratio of 16×10^-6), set high-pressure degreaser to reduce the lubricating oil content of booster gas, and eliminate secondary pollution; by optimizing the absorption tower and regeneration device of the dehydration unit the foaming and deactivation of glycol is avoided; through the modification of the glycol regeneration gas system, the regeneration gas can be recycled, reducing environmental pollution and saving energy consumption.

Key words: gas storage, reciprocating compressor unit, lubricating oil, middle body venting, glycol

CLC Number:

TE82

GAO Jifeng, YIN Yongming, GONG Mingming, SUN Juan, WU Jiawei. Research and Application on Optimization of Injection Production Process for Underground Gas Storage[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(1): 126-135.

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