Effect of Nanofluids on Geologic Storage of Carbon Dioxide: A Critical Review

Abstract:

In this review paper, the role of nanofluids in enhancing the geologic storage of carbon dioxide and hydrogen is examined, with a focus on their impact on wettability (the ability of liquids to spread on or adhere to surfaces) and storage stability. Recent studies that investigate the effects of various nanofluids, including alumina and silica, on different geologic substrates systematically analyzed. It is highlighted how these nanofluids can reverse the wettability changes that are induced by organic acids, thereby enhancing the hydrophilicity (water-attracting nature) of reservoir rocks and improving the efficiency of CO₂ and H₂ trapping mechanisms (processes that confine these gases within the geological formations). It has been shown that optimal concentrations of nanofluids significantly improve the residual and structural trapping capacities of CO₂. Additionally, the potential of nanofluids to facilitate CO₂ mineralization on shale surfaces is discussed, further contributing to storage security. By synthesizing findings from multiple studies, a comprehensive understanding of the current advancements in nanofluid applications for geologic storage is provided, and key areas for future research to optimize their use in large-scale carbon and hydrogen sequestration projects are identified.

• Periodical: Advanced Engineering Forum (Volume 55)
• Pages: 51-63
• DOI: https://doi.org/10.4028/p-x4MeHD
• Online since: May 2025
• Authors: Nadia Darougheh, Ali J. Chamkha, Abbas Biglar*, Mohammad Hashem Emami
• Keywords: Carbon Capture, CO₂ Mineralization, Geologic Storage, Nanofluids, Wettability Alteration

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