METHOD FOR CO2 EOR AND STORAGE AND USE THEREOF

摘要

A method of Enhanced Oil Recovery from oil zones in a subterranean geological formation, and from oil zones, the method comprising: a first injecting step of injecting a first composition comprising CO2 into the subterranean geological formation for a period of time; a second injecting step of injecting a second composition comprising CO2 and a hydrocarbon into the subterranean geological formation for a period of time, wherein the first composition and the secondcomposition are different; and extracting oil from the subterranean geological formation.