The quick assessment method calculates these brine displacement contributions in response to an estimated average pressure buildup in the storage reservoir.
The CO2 storage capacity and the transient domain-averaged pressure buildup estimated through the quick-assessment method were compared with the ‘‘true’’ values obtained using detailed numerical simulations of CO2 and brine transport in a two-dimensional radial system.
The good agreement indicates that the proposed method can produce reasonable approximations for storage–formation–seal systems of various geometric and hydrogeological properties.