Academic Journal of Engineering and Technology Science, 2022, 5(2); doi: 10.25236/AJETS.2022.050208.
Chuangen Zheng1, Haiquan Zhong1, Daoyuan Liang1, Li Lin2, Tongjun He3
1State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
2Yunnan University of Finance and Economics, Kunming, China
3Shu'nan Gas Mine, Southwest Oil & Gas Field Branch Company, CNPC, Luzhou, China
Due to the particularity of its stratigraphic structure, Sichuan Basin is rich in natural gas resources. With the production of gas wells, effusion is bound to occur in the wellbore. Once water invasion occurs, it will lead to the decline of natural gas production and even shutdown of the wells. Therefore, timely drainage of water in the wellbore is the key to restoring gas well production. Because of the high sulfur content of natural gas in Sichuan Basin, the conventional gas well drainage measures are difficult to apply, and some special drainage measures need to be taken. This paper mainly reviews the development and present situation of drainage technology for gas wells with high sulfur content, and introduces four main types of high sulfur gas well drainage gas recovery technologies: plunger gas lift, tubing perforation, electrical submersible pump drainage gas recovery technology, and foam drainage gas recovery, and compares their applicability, advantages and disadvantages.
Sichuan Basin; Gas Well, Sulfur Content; Water Intrusion; Drainage Gas Recovery
Chuangen Zheng, Haiquan Zhong, Daoyuan Liang, Li Lin, Tongjun He. Development Status of Drainage Gas Recovery Technology in High Sulfur Gas Wells. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 2: 43-47. https://doi.org/10.25236/AJETS.2022.050208.
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