CONTROL METHOD OF OIL PRODUCTION AT MATURE SEPARATE OIL DEPOSIT Russian patent published in 2019 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil producing industry and relates, in particular, to method of control of oil production and pumping of liquid into reservoir of separate mature oil deposit, as well as method of oil production rate forecasting. Method consists in that, first, pressure is measured in bottomhole of pressure well of mature field by means of pressure measuring device, rate of working agent injection into injection well and total production rate of oil in previous period is determined for all producers, wherein the pressure in the well bottom and the working fluid injection rate are measured during the whole previous period, then the obtained data are used to obtain a statistical predictive model implemented in the form of a software and hardware system, which serves to predict oil production rate in the field as a whole and for each production well separately for a period of up to 6 months, based on the obtained data based on the predicted rate of oil production and interference of wells on each other, optimal injection modes are set at injection wells, namely pressure in the face of injection well and rate of working agent pumping.

EFFECT: possibility of obtaining reliable forecast of oil production rate at all production wells of a separate deposit and selection of optimum injection modes for implementation of this forecast.

1 cl, 3 dwg