PROCESSO CICLOCO PARA ESPUMAMENTO COM VAPOR,PARA RECUPERAR HIDROCARBONETOS DE UMA FORMACAO SUBTERRANEA PENETRADA POR UM POCO

摘要

An improved cyclic steam injection process for recovering hydrocarbons from a subterranean formation. The process includes the use of alpha-olefin sulfonate dimer surfactants in the steam to form a foam-steam drive medium which is injected into the formation through an injection well to enhance the recovery of hydrocarbons from said well when it is in a production well mode of operation.