How does geochemical alteration impact CO2 stability in the subsurface

This project aims to investigate the reactive behavior of carbon dioxide in sandstone rocks to improve the safety of carbon sequestration operations. Sequestration reduces carbon emissions to the atmosphere by pumping carbon dioxide fluid into underground rock formations for storage. However, reactions occur when sandstone rocks come into contact with carbon dioxide under high-pressure, high-temperature conditions; these reactions and the fluid flows affect one another, forming a complex feedback loop. This interaction will potentially impact the safety of sequestration operations. This interaction will be studied using innovative experiments based on cutting-edge 3D microscopy; results will lead to design of safer sequestration operations.