An experimental study of nanoparticle-polymer-stabilized CO2 foam

摘要

The results of foam flooding in enhanced oil recovery (EOR) practices depend largely on the stability of foam flow within reservoirs. To stabilize foam, polymers such as partially hydrolyzed polyacrylamide are added to the foaming agents. However, due to residual polymer, which tend to expand in volume within the porous medium, formation damage is inevitable. Thus, new foaming agents are required to stabilize foam without causing formation damage. Nanoparticle-stabilized foams offer promise as suitable substitutes for polymers as they do not damage the formation.