METHOD OF DEVELOPMENT OF OIL DEPOSIT PRESENTED BY POROUS-FRACTURED RESERVOIR Russian patent published in 2001 - IPC

FIELD: oil producing industry. SUBSTANCE: method includes injection of water through injection wells with control of water volume and pressure of injection. Oil is withdrawn through producing wells with control of volume of withdrawn product, formation pressure, water-oil ratio and forecasting of change of parameters. Water is injected through injection wells inside oil-pool outline. Before attaining the threshold values of parameters of water injection and oil withdrawal, within limits of profitable development, tracer researches are conducted to detect channels communicating injection wells with producing ones. Then, these channels are plugged, and new channels are formed by temporary increase of injection pressure. Volume of water injected into injection wells is equal to volume of oil withdrawal from producing wells under formation conditions. EFFECT: higher efficiency of method due to increased oil recovery from pool without increased water cutting of well production. 3 dwg