ALKYL ALKOXYLATED CARBOXYLATE SALTS AS STEAM FOAM ADDITIVES FOR HEAVY OIL RECOVERY

摘要

Recovering heavy oil from a subterraneous formation penetrated by at least one injection well and one production well, by injecting into the injection well a mixture of steam and an alkyl alkoxylated carboxylate salt, increasing the apparent viscosity of the steam while at the same time lowering the steam mobility, and recovering oil from the subterranean formation.