Experimental investigation of coupled processes affecting caprock seal integrity for CO2 sequestration

Geological storage of CO2 in deep aquifers or depleted oil/gas reservoirs is considered a solution for reducing excess CO2 currently being emitted to the atmosphere. Low permeability caprocks trap the CO2 that is stored in the underlying porous reservoir or aquifer rock. Although the caprock acts as a seal, its lower boundary is in contact with CO2 saturated fluids. The thermo-hydro-mechanical and chemical (THMC) interactions between the CO2,...