Situations of the existing old salt cavern in china and stability of a new reconstruction scheme for underground gas storage
文献类型:期刊论文
作者 | Zhang, Guimin2,3; Wang, Tao2; Shi, Qing1; Liu, Yuxuan2; Zhang, Hao2 |
刊名 | ENVIRONMENTAL EARTH SCIENCES
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出版日期 | 2024-07-01 |
卷号 | 83期号:13页码:20 |
关键词 | Geotechnical feasibility Horizontal old salt cavern Underground gas storage Reconstruction Drilling new well |
ISSN号 | 1866-6280 |
DOI | 10.1007/s12665-024-11695-y |
英文摘要 | There are many dissolved salt caverns in China, but most of the existing caverns cannot be used for gas storage directly, especially the huge number of horizontal old caverns. First, situations of the main existing old salt caverns in China were investigated, including the burial depth, thickness of the salt formations, grade of the salt layer, number of existing caverns, mining methods and inferred cavern shapes. Then, a typical process for screening and evaluating existing salt caverns was proposed, and then a new reconstruction method by drilling new wells between injection and production wells was introduced. Thirdly, theoretical analysis methods that can be used to evaluate the geotechnical feasibility of horizontal salt caverns were summarized. Finally, numerical simulation was carried out to study the geotechnical feasibility of the reconstructed horizontal cavern and the influencing law of the specific reconstructed measures. Some conclusions were drawn as follows: (1) For the reconstruction of horizontal salt cavern by drilling a new well between injection and production wells, the size of the newly solved cavern, operation time and internal pressure are the three most important influence factors; (2) Combined with the numerical simulation results, the surrounding rock of the horizontal cavern should mainly focus on the tensile and shear failure around the cavern and the instability of the key roof; (3) Compared with the method of drilling new wells outside the cavern, drilling new wells between wells are different in the displacement scope, volume shrinkage and plastic zone distribution. In summary, the introduced reconstruction can enlarge the small volume of existing horizontal old caverns, but more in-depth research and field engineering practice are needed to optimize the reconstruction method. |
资助项目 | National Natural Science Foundation of China |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
语种 | 英语 |
WOS记录号 | WOS:001243850400002 |
出版者 | SPRINGER |
源URL | [http://119.78.100.198/handle/2S6PX9GI/41899] ![]() |
专题 | 中科院武汉岩土力学所 |
通讯作者 | Zhang, Guimin; Wang, Tao |
作者单位 | 1.Shanxian Energy Co Ltd, Feicheng Min Grp, Heze 274300, Shandong, Peoples R China 2.China Univ Min & Technol, Sch Mech & Civil Engn, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Guimin,Wang, Tao,Shi, Qing,et al. Situations of the existing old salt cavern in china and stability of a new reconstruction scheme for underground gas storage[J]. ENVIRONMENTAL EARTH SCIENCES,2024,83(13):20. |
APA | Zhang, Guimin,Wang, Tao,Shi, Qing,Liu, Yuxuan,&Zhang, Hao.(2024).Situations of the existing old salt cavern in china and stability of a new reconstruction scheme for underground gas storage.ENVIRONMENTAL EARTH SCIENCES,83(13),20. |
MLA | Zhang, Guimin,et al."Situations of the existing old salt cavern in china and stability of a new reconstruction scheme for underground gas storage".ENVIRONMENTAL EARTH SCIENCES 83.13(2024):20. |
入库方式: OAI收割
来源:武汉岩土力学研究所
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