METHOD TO IMPROVE CONFORMANCE CONTROL IN CARBON DIOXIDE FLOODING

摘要

This invention generally relates to the field of oil recovery from reservoirs. More specifically, it relates to enhancing the recovery of oil using carbon dioxide flooding processes. In general, the invention provides a process to improve oil recovery from a reservoir by injecting through a well into a reservoir a heavy oil slug composition that includes heavy oil that is mixed carbon dioxide. Following injecting the heavy oil slug composition, a carbon dioxide slug that includes carbon dioxide is injected through the well into the reservoir.