METHOD OF OIL RECOVERY EMPLOYING ENRICHED GAS DRIVE WITH CONTROL OF EVOLVED GAS

摘要

METHOD OF OIL RECOVERY EMPLOYINGENRICHED GAS DRIVE WITH CONTROL OFEVOLVED GAS(D#73,702-F)ABSTRACT OF THE DISCLOSUREA method for the recovery of hydrocarbons from asubterranean hydrocarbon-bearing reservoir by an enriched gasdrive wherein lean gas, evolved from the miscible transitionzone, is produced ahead of the miscible transition zone andreinjected behind the solvent injection point whereby excessivegas production is utilized and a drive agent miscible withthe solvent is provided to displace the reservoir fluidsthrough the reservoir to a production well from which theyare produced.