FIELD: oil production. SUBSTANCE: invention deals with optimization of production of hydrocarbons thanks to determination of interaction between different wells effecting value of water fraction in outflowing fluids produced by one or several operating wells from certain zone of underground deposit of liquid hydrocarbons in process of exploitation of this deposit subjected to washing with the use of fluid under pressure pumped through one or several injection wells or to washing with the use of water from nearest water-bearing zone. Collection of significant data is selected proceeding from measurements obtained from history of injection of washing fluid into given deposit and from history of extraction of liquid product outflowing from assemblage of operating wells of given oil-bearing zone. Then some linear optimized model tying changes of these water fractions in time to changes in time of mentioned significant data related to parameters of other wells integrated in above-mentioned system of wells is established iteratively. EFFECT: improved reliability of method. 10 cl, 14 dwg
