A comprehensive review of hydrogen storage in depleted oil and gas reservoirs: Parameters, experiments, and challenges

Khanjani M. Omirbekov S. Riazi M.
January 2026 Elsevier Ltd

Renewable and Sustainable Energy Reviews
2026 #225

Nowadays, the demand for hydrogen as a clean energy source for various sectors, including households and factories, has been rising. Accordingly, underground hydrogen storage is one of the most effective methods for safely storing huge amounts of hydrogen. This review gathered underground hydrogen storage projects around the world and summarized the advantages and disadvantages of each reservoir type. It is worth mentioning that depleted/depleted oil and gas reservoirs, especially CO₂-EOR reservoirs, have significant hydrogen storage potential. However, few studies and reviews exist in this regard, which is due to the complexity of the fluid-fluid-rock interactions. Another highlight of this review is the consideration of CO₂ gas (as CG) and the brief comparison of the principal differences between underground hydrogen storage and geological carbon storage. Hence, this review comprehensively collects the effective fluid and solid parameters of hydrogen storage in oil and gas reservoirs that are depleted/depleted. This review collected and summarized the most recent experiments and numerical simulations, which may be insightful and useful for future studies and field projects. Furthermore, it is worth mentioning that this review observed and collected most of the related surface accidents (laboratory) regarding hydrogen and set an HSE requirement for a safe laboratory. Generally, this comprehensive review provides an insightful vision to utilize depleted/depleting oil and gas reservoirs to efficiently store long-term hydrogen for the future.

CO₂ emission , Depleted oil & gas reservoirs , Hydrogen trapping mechanisms , Numerical simulation , Potential storage sites , Risk assessment , Storage principal parameters , Underground hydrogen storage

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School of Mining and Geosciences, Nazarbayev University, Astana, 010000, Kazakhstan
National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan

School of Mining and Geosciences
National Laboratory Astana

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026