Multi-objective optimization for efficient CO2 storage under pressure buildup constraint in saline aquifer

Jianqiao Liu, Jia Liu, Yiheng Zhu, Wenyue Sun, Daowei Zhang and Huanquan Pan

Applied Energy, 2025, vol. 382, issue C, No S0306261924025595

Abstract: CO2 storage within saline aquifers represents a pivotal strategy for mitigating climate change. Continuous injection of CO2 into saline aquifers can lead to a sharp increase in formation pressure, potentially reducing storage efficiency and escalating the risks of CO2 leakage and seismic activities resulting from stress-induced changes. Developing an optimal injection strategy that maximizes CO2 storage while minimizing leakage risk is critical for storage projects. Current research primarily focuses on optimization tasks that incorporate geomechanical considerations, often necessitating extensive flow-geomechanics coupled forward simulations. These simulations are computationally intensive, posing challenges in convergence and making them impractical for field-scale CO2 storage deployments.

Keywords: Carbon dioxide capture and storage; Saline aquifer; Multi-objective optimization; Deep learning; Leakage risk (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.apenergy.2024.125175

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