Nature – Punnam et al. (2025): Investigation of different caprock morphologies on CO₂ leakage and solubility trapping mechanism
Pradeep Reddy Punnam, Venkata Sai Teja Tatavarthi and Vikranth Kumar Surasani, IN: Nature, https://doi.org/10.1038/s41598-025-03416-7
A thorough understanding of subsurface formation zones is critical for safe and long-term storage using CO₂ geological sequestration (CGS). A major concern in CGS is the risk of CO₂ leakage due to plume migration through structural faults and cracks in the caprock. This research investigates the effects of caprock morphologies on CO₂ plume migration, solubility trapping, and leakage risks using multiphase multicomponent reactive transport simulations. Three synthetic domains with varying caprock morphologies are modelled, incorporating geological subsurface features.