Key Elements in Integrity Management of Underground Gas Storage: A Framework for Energy Safety

Shuyi Xie (), Bin He, Ligang Chen, Kangkai Xu, Jinheng Luo, Lifeng Li and Bohong Wang
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Shuyi Xie: State Key Laboratory of Oil and Gas Equipment, CNPC Tubular Goods Research Institute, Xi’an 710077, China
Bin He: Gas Storage Co., Ltd., PetroChina Xinjiang Oilfield Company, No. 5 North Tengfei Avenue, Changji Hi-Tech Industrial Development Zone, Changji City 831299, China
Ligang Chen: Gas Storage Co., Ltd., PetroChina Xinjiang Oilfield Company, No. 5 North Tengfei Avenue, Changji Hi-Tech Industrial Development Zone, Changji City 831299, China
Kangkai Xu: State Key Laboratory of Oil and Gas Equipment, CNPC Tubular Goods Research Institute, Xi’an 710077, China
Jinheng Luo: State Key Laboratory of Oil and Gas Equipment, CNPC Tubular Goods Research Institute, Xi’an 710077, China
Lifeng Li: State Key Laboratory of Oil and Gas Equipment, CNPC Tubular Goods Research Institute, Xi’an 710077, China
Bohong Wang: National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology/Zhejiang Key Laboratory of Pollution Control for Port-Petrochemical Industry, Zhejiang Ocean University, No. 1 Haida South Road, Zhoushan 316022, China

Energies, 2025, vol. 18, issue 2, 1-22

Abstract: Gas reservoir-type underground gas storage (UGS) plays a critical role in China’s natural gas reserves and peak shaving, serving as an essential component of the energy security system. Its unique cyclic injection and production operations not only stabilize the natural gas supply but also impose stringent requirements on the safety and integrity of geological structures, wellbores, and surface facilities. Weaknesses in current practices can cause accidents, directly threatening energy security. Therefore, continuously improving integrity management is the key to mitigating energy risks. Currently, the integrity management of gas storage faces challenges such as an abundance of standards and the complexity of management elements, which affect both operational safety and management efficiency. To address these issues, this study systematically analyzes domestic and international standards related to gas storage and establishes a technical system based on “three-in-one” integrity management (geological structure, wellbore, and surface facilities). Key elements of integrity management are identified and optimized, and recommended execution standards for critical factors are proposed to provide a theoretical basis and decision-making support for the safe operation of gas storage. This study not only offers a reference for optimizing and implementing integrity management standards but also has significant practical implications for enhancing energy security and reducing energy risks, ensuring the smooth execution of China’s natural gas reserve and peak shaving initiatives.

Keywords: depleted oil and gas reservoir-type UGS; natural gas; integrity management; energy security; energy risk (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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