METHOD OF OIL POOL DEVELOPMENT Russian patent published in 2002 - IPC

FIELD: oil producing industry; applicable at late stage of oil pool development. SUBSTANCE: method includes singling-out of superreservoir layers in lower or middle in height part of oil pool; injection of working agent through injection wells into superreservoirs in lower or middle in height part of oil pool. Singled-out in pool upper part are superreservoirs which are used as natural oil accumulating vessels. Oil is withdrawn from producing wells drilled into superreservoirs in pool upper part with organization of oil displacement due to injection of working agent into lower or middle part of pool. EFFECT: higher oil recovery from pool. 3 cl, 2 ex