METHOD OF OIL POOL DEVELOPMENT Russian patent published in 2003 - IPC

FIELD: oil producing industry; applicable in development of oil pools at late stages. SUBSTANCE: method includes withdrawal of oil through producing wells and injection of working agent through injection wells. Pool is separated into sections of development by boundary lines running over rows of injection and/or producing well. Operation of development sections is modeled. In modeling, production rate and flow rate of wells on boundary lines are divided in proportion to values of angles of break of boundary lines in points of wells location. Values of production rate and flow rate of wells on boundary lines are related to corresponding development sections. Geological-mining models of development sections are adapted by history of pool development. Formation pressures on adjacent development sections obtained for the same time moment of development are compared. If formation pressures differ from each other, operation of adjacent development sections are modeled with use of false wells simulating crossflows between development sections. Values of floes of fluids are determined which equalize formation pressures between development sections. Geological-mining models of development sections are adapted with said flows on boundaries of development sections by history of pool development. Conditions of operation of wells are varied for control of filtration flows on development sections. Filtration oil flows through section boundaries are minimized or oil flows are directed to points of oil gathering. EFFECT: increased oil recovery from pool. 1 dwg