A Review of Coupled Geochemical–Geomechanical Impacts in Subsurface CO 2, H 2, and Air Storage Systems

Zhuofan Shi, Dejene L. Driba, Nora Lopez Rivera, Mohammad Kariminasab and Lauren E. Beckingham ()
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Zhuofan Shi: Department of Civil and Environmental Engineering, Auburn University, Auburn, AL 36849, USA
Dejene L. Driba: Department of Civil and Environmental Engineering, Auburn University, Auburn, AL 36849, USA
Nora Lopez Rivera: Department of Geosciences, Auburn University, Auburn, AL 36849, USA
Mohammad Kariminasab: Department of Civil and Environmental Engineering, Auburn University, Auburn, AL 36849, USA
Lauren E. Beckingham: Department of Civil and Environmental Engineering, Auburn University, Auburn, AL 36849, USA

Energies, 2024, vol. 17, issue 12, 1-27

Abstract: Increased demand for decarbonization and renewable energy has led to increasing interest in engineered subsurface storage systems for large-scale carbon reduction and energy storage. In these applications, a working fluid (CO 2 , H 2 , air, etc.) is injected into a deep formation for permanent sequestration or seasonal energy storage. The heterogeneous nature of the porous formation and the fluid–rock interactions introduce complexity and uncertainty in the fate of the injected component and host formations in these applications. Interactions between the working gas, native brine, and formation mineralogy must be adequately assessed to evaluate the efficiency, risk, and viability of a particular storage site and operational regime. This study reviews the current state of knowledge about coupled geochemical–geomechanical impacts in geologic carbon sequestration (GCS), underground hydrogen storage (UHS), and compressed air energy storage (CAES) systems involving the injection of CO 2 , H 2 , and air. Specific review topics include (1) existing injection induced geochemical reactions in these systems; (2) the impact of these reactions on the porosity and permeability of host formation; (3) the impact of these reactions on the mechanical properties of host formation; and (4) the investigation of geochemical-geomechanical process in pilot scale GCS. This study helps to facilitate an understanding of the potential geochemical–geomechanical risks involved in different subsurface energy storage systems and highlights future research needs.

Keywords: fluid–rock interactions; geologic carbon sequestration; underground hydrogen storage; compressed air energy storage; geomechanical properties; porosity; permeability (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: 2024
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