An improved simplified analytical model for CO2 plume movement and pressure buildup in deep saline formations

► Rigorous evaluation of the 3-region model by benchmarking with results from STOMP. ► Evaluation led to the incorporation of the following 3 improvements in the model. ► Specification of pressures at which fluid properties should be calculated. ► Improved representative average 2-phase mobility based on actual mobility profile. ► Infinite-acting outer boundary represented using transient radius of investigation.