Experimental and numerical study of carbon dioxide injection enhanced oil recovery in low-permeability reservoirs
Carbon dioxide (CO2) flooding is the most viable enhanced oil recovery (EOR) process in intermediate and light oil reservoirs, both in sandstone and carbonate reservoirs. Low-salinity waterflood is a relatively new EOR process. By combining the two EOR processes, a new low-salinity-water-alternating-CO2 (LS-WACO2) EOR process is investigated. To optimize residual oil mobilization, surfactant diluted in low-salinity water is injected as an intermediate sequence to the LS-WACO2 process; hence the second EOR process investigated is low-salinity-water-surfactant-CO2 (LSS-WACO2). Coreflood, interfacial ...
(For more, see "View full record.")