METHOD OF DEVELOPMENT OF NONUNIFORM OIL POOL Russian patent published in 1997 - IPC

FIELD: oil producing industry. SUBSTANCE: the offered method includes injection of working agent through injection wells, oil withdrawal through producing wells and shutin of producing wells with limit water cutting of well production. Revealed on pool are development sections located in zone of effect of injection wells supplied from one source of working agent. Revealed on these section are low-production rate producing wells and injection wells with high and low intake capacities. Then, bottom-hole pressure in low-production rate wells is reduced by 20-45%, and injection wells with high intake capacities are shutin. Injection pressure in injection wells with low intake capacities is increased by 10-20% with preservation of ratio of volumes of injection and withdrawal with in the development section. producing wells with limit water cutting of production may be periodically shutin for 5-7 months and operated 5-7 months in cyclic mode: shutin 0.5-1 month and 0.5-1 month of operation. EFFECT: higher efficiency. 2 cl