On the estimation of CO2 capillary entry pressure: Implications on geological CO2 storage

This newly developed model can be used to compute CO2 entry pressure and associated fluid configurations in realistic cap-rock pore spaces which can be extracted from 2D rock images from core samples located at various storage depths and under the examined storage site's pressure, temperature and brine ionic strength conditions. The proposed workflow for capillary entry pressure estimation and its relationship with depth can enhance our understanding and improve the design and safe storage of CO2 in geological formations.