Allowable Pillar Width for Salt Cavern Gas Storage Based on Triangular Well Layout: A Case Study in China
文献类型：期刊论文
| 作者 | Cai, Rui1,2; Ma, Hongling1; Liang, Xiaopeng1,2; Zhao, Kai1,2; Yang, Chunhe1 |
| 刊名 | ENERGIES
 |
| 出版日期 | 2024 |
| 卷号 | 17期号:2页码:24 |
| 关键词 | rock salt pillar width triangular well pattern stability analysis evaluation tightness analysis evaluation numerical simulation |
| DOI | 10.3390/en17020324 |
| 英文摘要 | Salt rock, renowned for its remarkable energy storage capabilities, exists in deep underground environments characterized by high temperature and pressure. It possesses advantageous properties such as high deformability, low permeability, and self-healing from damage. When establishing a cluster of salt cavern gas storage facilities, the careful selection of ore column widths between these reservoirs is crucial for minimizing the risk of structural failure, optimizing salt rock resource utilization, and enhancing the construction and operation of gas storage reservoirs. In current practices, square triangular arrangements are commonly used in designing well layouts for reservoir groups to balance stability and economic considerations. This study, conducted in the context of the Jintan salt cavern gas storage project in Jiangsu Province, employed FLAC3D to create a finite element model for proposed gas storage configurations. A comprehensive analysis of the long-term operational safety of salt cavern gas storage with triangular well layouts was carried out. Various indices were examined, covering aspects such as cavern wall displacement, characteristics of the plastic zone, volume shrinkage, safety coefficients, seepage range, pore pressure fluctuations, and seepage volume. The study also considered the mechanical behavior of hexagonal columns within the surrounding rock during extended storage operations, leading to the optimization of allowable widths for these columns. The results indicate that, at operating pressures ranging from 6.5 to 17 MPa, the permissible column width should exceed 1.67 times the maximum cavern diameter to ensure compliance with criteria for long-term stability and containment within a square triangular layout. These findings provide valuable insights into determining the optimal allowable widths of salt cavern columns for positive triangular layouts. |
| 资助项目 | National Science Foundation for Excellent Young Scholars |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001149392800001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40429]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Cai, Rui |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Rui,Ma, Hongling,Liang, Xiaopeng,et al. Allowable Pillar Width for Salt Cavern Gas Storage Based on Triangular Well Layout: A Case Study in China[J]. ENERGIES,2024,17(2):24. |
| APA | Cai, Rui,Ma, Hongling,Liang, Xiaopeng,Zhao, Kai,&Yang, Chunhe.(2024).Allowable Pillar Width for Salt Cavern Gas Storage Based on Triangular Well Layout: A Case Study in China.ENERGIES,17(2),24. |
| MLA | Cai, Rui,et al."Allowable Pillar Width for Salt Cavern Gas Storage Based on Triangular Well Layout: A Case Study in China".ENERGIES 17.2(2024):24. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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