Case studies on the CO2 storage and EOR in heterogeneous, highly water-saturated, and extra-low permeability Chinese reservoirs

The CO2 storage and CO2 enhanced oil recovery (EOR) in reservoirs often face challenges due to a high heterogeneity, high levels of water saturation, or low permeability. Based on the evaluation method of the CO2 storage capacity and EOR, three typical reservoirs representing these challenges are introduced to study their effect on the CO2 EOR potentials and CO2 storage capacities. The properties of these reservoirs were analyzed in detail, and...