Experimental Study on Plugging of Micro-Leakage Interlayer (MLI) in Underground Salt Cavern Gas Storage (Jintan, China)
文献类型：期刊论文
| 作者 | Yin, Hongwu2,3; Ge, Xinbo1 |
| 刊名 | PROCESSES
 |
| 出版日期 | 2025-04-14 |
| 卷号 | 13期号:4页码:16 |
| 关键词 | micro-leakage interlayer underground salt cavern gas storage tightness brine crystallization cement-based sealing rock salt permeability |
| DOI | 10.3390/pr13041188 |
| 英文摘要 | The permeability of a certain mudstone interlayer in underground salt cavern gas storage (Jintan, China) is slightly high, as indicated by pressure tests (leakage rate of approximately 1 similar to 2 L/d). This layer is referred to as the "Micro-Leakage Interlayer (MLI)". The MLI significantly impacts the tightness of gas storage, potentially leading to substantial losses. To address this problem, an experimental study was conducted. Initially, a method utilizing brine crystallization to plug the micro-leakage interlayer (MLI) was proposed. After crystallization, the porosity of the MLI cores exhibited a notable increase, and the permeability of the MLI cores increased significantly, further exacerbating the risk of gas leakage. These results indicate that the plugging solution requires further exploration. Finally, a combined plugging solution utilizing brine crystallization and ultrafine cement was proposed. Using saturated brine and waterproof coatings, an ultrafine cement slurry was prepared, and specimens were created for testing. The results indicate that the specimens exhibited a porosity of approximately 3%, a permeability below 10(-19) m(2), and a uniaxial compressive strength of about 40 MPa. The ultrafine cement particles had an average particle size of 3 mu m, and the ultrafine cement slurry exhibited extremely low porosity and permeability, as well as high strength. The results indicate that this solution is highly feasible and can be applied to field engineering. |
| 资助项目 | China Scholarship Council ; National Natural Science Foundation of China[51774266] ; National Natural Science Foundation of China[51404241] ; National Natural Science Foundation of China[41602328] ; National Natural Science Foundation of China[52404060] ; [201704910741] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001476109300001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35862]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Ge, Xinbo |
| 作者单位 | 1.Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Guangzhou Expressway Co Ltd, Guangzhou 510555, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Hongwu,Ge, Xinbo. Experimental Study on Plugging of Micro-Leakage Interlayer (MLI) in Underground Salt Cavern Gas Storage (Jintan, China)[J]. PROCESSES,2025,13(4):16. |
| APA | Yin, Hongwu,&Ge, Xinbo.(2025).Experimental Study on Plugging of Micro-Leakage Interlayer (MLI) in Underground Salt Cavern Gas Storage (Jintan, China).PROCESSES,13(4),16. |
| MLA | Yin, Hongwu,et al."Experimental Study on Plugging of Micro-Leakage Interlayer (MLI) in Underground Salt Cavern Gas Storage (Jintan, China)".PROCESSES 13.4(2025):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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