PROCESS OF DEVELOPMENT OF OIL DEPOSIT Russian patent published in 2004 - IPC

FIELD: oil industry. SUBSTANCE: process includes oil withdrawal through rows of producing wells and pumping-in of working agent through rows of injection wells. In correspondence with invention producing wells in rows are arranged in plan in compliance with displacement front of each injection well located opposite producing well when start of one producing well matches or is maximally brought closer to finish of adjacent producing well and has extent making it feasible to overlap displacement front. Rows themselves of producing wells are positioned along section from lower first row to upper last row from row of injection wells. In this case first row of producing wells is situated in lower part of oil deposit at distance from bottom of productive formation not more than 25% of height of productive formation. Second row of producing wells is arranged in middle part of oil deposit at distance from bottom of productive formation equal to 25-75% of height of productive formation. Third row of producing wells is located in upper part of oil deposit at distance of 75% and more of height of productive formation from bottom of productive formation. EFFECT: raised oil recovery from deposit.