JPT CO2-Foam Field Pilot Test in a Sandstone Reservoir

SPE.org 

Foam-assisted CO2 enhanced oil recovery (EOR), commonly referred to as CO2-foam EOR, has been proposed as an effective technology for correcting sweep inefficiencies caused by gravity segregation and reservoir heterogeneity. The central concept of CO2-foam EOR is the in-­situ generation of a viscous emulsion of CO2 and water stabilized by a surfactant at reservoir conditions.