中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The Application of the Fuzzy Comprehensive Evaluation Method in the Sealing Evaluation of Caprocks in Underground Gas Storage

文献类型:期刊论文

作者Ban, Shengnan1,3; Liu, Hejuan1,3; Wei, Xinxing1,3; Shi, Xilin1,3; Mao, Haijun1,3; Song, Yujia1,3; Tan, Hongying2
刊名APPLIED SCIENCES-BASEL
出版日期2023-09-01
卷号13期号:17页码:16
关键词sealing underground gas storage caprock fuzzy comprehensive evaluation depleted gas reservoir
DOI10.3390/app13179753
英文摘要The good sealing caprocks are significant for the integrity of underground gas storage (UGS) in depleted natural gas reservoirs. The screening of parameters, weight assignment, and evaluation method are important for evaluating the sealing performance of caprocks. Many factors can affect the sealing performance of caprocks, including caprock thickness, lithology, brittleness, porosity and permeability, breakthrough pressure, etc. In this paper, the dominant factors in the sealing performance of caprocks in UGSs are systematically analyzed, and the weights of these factors are analyzed by the analytic hierarchy process (AHP). The fuzzy comprehensive evaluation method (FCEM) is applied in the sealing evaluation of caprocks in three typical underground gas reservoirs (i.e., Zhujiadun, Xu-2, and Xing-9) in China. The sandstone reservoir in the Zhujiadun gas field is only about 20 m, and the thickness of the overlying mudstone is about 600 m. The caprock of the Xu-2 gas reservoir in Zhongba gas field is well distributed and developed, and the breakthrough pressure is relatively large. The caprock of Xing-9 gas field is mudstone with a thickness of over 400 m. The results show that the breakthrough pressure and permeability are the key parameters affecting the sealing ability of caprocks, with weights of 0.4291 and 0.2157, respectively. Among these three examples of gas fields, the sealing performance of caprocks in Zhujiadun gas storage is the best. The evaluation procedure and methods proposed in this paper are valuable for the evaluation of the tightness of caprocks in depleted gas reservoirs.
资助项目CAS Pioneer Hundred Talents Program[Y826031C01] ; National Natural Science Foundation[U22A20166]
WOS研究方向Chemistry ; Engineering ; Materials Science ; Physics
语种英语
WOS记录号WOS:001060988400001
出版者MDPI
源URL[http://119.78.100.198/handle/2S6PX9GI/39340]  
专题中科院武汉岩土力学所
通讯作者Liu, Hejuan; Wei, Xinxing
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
2.Chongqing Univ, State Key Lab Coal Mine Disaster & Control, Chongqing 400044, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Ban, Shengnan,Liu, Hejuan,Wei, Xinxing,et al. The Application of the Fuzzy Comprehensive Evaluation Method in the Sealing Evaluation of Caprocks in Underground Gas Storage[J]. APPLIED SCIENCES-BASEL,2023,13(17):16.
APA Ban, Shengnan.,Liu, Hejuan.,Wei, Xinxing.,Shi, Xilin.,Mao, Haijun.,...&Tan, Hongying.(2023).The Application of the Fuzzy Comprehensive Evaluation Method in the Sealing Evaluation of Caprocks in Underground Gas Storage.APPLIED SCIENCES-BASEL,13(17),16.
MLA Ban, Shengnan,et al."The Application of the Fuzzy Comprehensive Evaluation Method in the Sealing Evaluation of Caprocks in Underground Gas Storage".APPLIED SCIENCES-BASEL 13.17(2023):16.

入库方式: OAI收割

来源:武汉岩土力学研究所

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