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Feasibility Analysis of Compressed Air Energy Storage in Salt Caverns in the Yunying Area

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  • Jinrong Mou

    (China Energy Digital Technology Group Co., Ltd., Beijing 100044, China
    Hubei Chuyun Energy Storage Technology Co., Ltd., Xiaogan 432400, China)

  • Haoliang Shang

    (China Energy Digital Technology Group Co., Ltd., Beijing 100044, China)

  • Wendong Ji

    (China Energy Digital Technology Group Co., Ltd., Beijing 100044, China)

  • Jifang Wan

    (China Energy Digital Technology Group Co., Ltd., Beijing 100044, China)

  • Taigao Xing

    (China Energy Digital Technology Group Co., Ltd., Beijing 100044, China
    Hubei Chuyun Energy Storage Technology Co., Ltd., Xiaogan 432400, China)

  • Hongling Ma

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China)

  • Wei Peng

    (China Energy Digital Technology Group Co., Ltd., Beijing 100044, China)

Abstract

With the widespread recognition of underground salt cavern compressed air storage at home and abroad, how to choose and evaluate salt cavern resources has become a key issue in the construction of gas storage. This paper discussed the condition of building power plants, the collection of regional data and salt plant data, and the analysis of stability and tightness. Comprehensive analysis and evaluation methods were put forward from four aspects, including ground comprehensive conditions, regional geological conditions and formation lithology, salt mine characteristics, stability, and tightness of salt caverns. The limit equilibrium theory was applied to establish the limit equilibrium failure mode of salt caverns under operating pressure, and the stability coefficient calculation method of the target salt cavern was determined by combining the mechanical characteristics. Based on the physical and mechanical properties of salt rocks, it was found that salt rocks with enough thickness around the salt cavity could be used as sealing rings to ensure the tightness of the salt cavern. Combined with the field water sealing test, the tightness of the target salt cavern is verified. This method has been applied to the salt cavern screening and evaluation of a 300 MW compressed air energy storage power plant project in Yingcheng, Hubei Province, and remarkable results have been obtained, indicating the rationality of the method.

Suggested Citation

  • Jinrong Mou & Haoliang Shang & Wendong Ji & Jifang Wan & Taigao Xing & Hongling Ma & Wei Peng, 2023. "Feasibility Analysis of Compressed Air Energy Storage in Salt Caverns in the Yunying Area," Energies, MDPI, vol. 16(20), pages 1-22, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:20:p:7171-:d:1264131
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    References listed on IDEAS

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    1. Zhang, Jingtao & Hosseini Zadeh, Amin & Kim, Seunghee, 2021. "Geomechanical and energy analysis on the small- and medium-scale CAES in salt domes," Energy, Elsevier, vol. 221(C).
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    Cited by:

    1. Marcin Jankowski & Anna Pałac & Krzysztof Sornek & Wojciech Goryl & Maciej Żołądek & Maksymilian Homa & Mariusz Filipowicz, 2024. "Status and Development Perspectives of the Compressed Air Energy Storage (CAES) Technologies—A Literature Review," Energies, MDPI, vol. 17(9), pages 1-46, April.
    2. Jian Wang & Peng Li & Weizheng Bai & Jun Lu & Xinghui Fu & Yaping Fu & Xilin Shi, 2024. "Mechanical Behavior of Sediment-Type High-Impurity Salt Cavern Gas Storage during Long-Term Operation," Energies, MDPI, vol. 17(16), pages 1-14, August.

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