Advanced Mineralization of CO2 in Basaltic formations: Implication for CO2 storage

In CO2 geo-storage applications, mineral trapping is considered as the safest trapping mechanism but the longest and the most complicated as it includes different physical and chemical processes (Xu et al., 2003; Rezk et al, 2023). However, in basaltic formations, this process is relatively faster to the presence of highly active minerals i.e., peridotite (Raza et al., 2022). The scope of this study is to investigate the mineral trapping of CO2 in basaltic formations using a numerical simulation approach as a function of the subsurface systems characteristics to help the industry in site selection and operations. While a score of publications investigated CO2 storage via structural, residual and dissolution trapping mechanisms, mineral trapping potential has not been investigated much, especially in basaltic formations. This paper thus provides new insights into the dynamics of CO2 storage by mineral trapping pertinent to basaltic formation. A thorough and systematic investigation of the influencing factors will be presented.