Abstract
Summary The effectiveness of foam as a mobility-control agent has been tested by an immiscible CO2 coreflood displacement of a California heavy oil (14°API [0.97 g/cm3]). Foam was produced by simultaneous injection of 0.5 wt% surfactant solution and CO2. Foam injection recovered an incremental 33.6% of original oil in place (OOIP) by reducing CO2 mobility and diverting CO2.
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