METHOD OF REAL-TIME CONTROL OF RESERVOIR FLOODING Russian patent published in 2017 - IPC E21B47/10 E21B43/20 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to petroleum industry, namely to control of oil reservoir flooding. Method involves oil sampling through producer wells and working agent injection through injection wells, evaluation of impact of production and injection wells. In order to determine the optimum values of injectivity of injection wells a mathematical model of the field is used, and the initial data for each production well and injection wells potentially affecting it the parameters in the form of the date of measurement, injectability, flow rate of fluid and oil fraction are taken. The mathematical model is comprised by functions, reflecting the change in fluid flow rate and the share of oil production wells at change of injectivity of injection wells, also, the mathematical model is adapted by obtaining the minimum difference of actual and estimated data of fluid flow rate and the share of work of each oil production well. The optimum values of regulated parameters of fluid flow rate of functions of fluid flow rate and the share of oil are determined, and the mixed function of daily oil production of producing well is made depending on the injectability of injection wells around. Then the maximization of total oil production of the field as a whole is perfoemd through the redeployment of injectivity of injection wells, with imposition of restrictions on the volume of injection for efficient organizing of system of displacement of oil with water and maintaining the reservoir pressure.

EFFECT: invention provides efficient organizing of the system of displacement of oil with water and maintenance of reservoir pressure.

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