.alpha. OLEFIN SULFONATE SURFACTANT ADDITIVES FOR GAS FOAM DRIVES AND A PROCESS OF STIMULATING HYDROCARBON RECOVERY FROM A SUBTERRANEAN FORMATION

摘要

An improved non-condensible gas injection process for recovering hydrocarbons from a subterranean formation. The process includes the use of alpha-olefin sulfonate surfactants along with the non-condensible gas to form a gas-foam drive medium which is injected into the formation through at least one injection well to enhance the recovery of hydrocarbons from at least one production well.