METHOD FOR DEVELOPMENT OF OIL DEPOSIT BY MEANS OF INTEGRATION OF WELL OPERATION MODES OPTIMIZATION TECHNOLOGY AND PHYSICAL AND CHEMICAL METHODS OF FORMATION STIMULATION Russian patent published in 2025 - IPC E21B43/20 

FIELD: oil industry.

SUBSTANCE: invention relates to the oil industry and is intended to activate the development of residual recoverable oil reserves from deposits at 3rd and 4th stages of development. Method includes pumping water into the productive formation through injection wells and extracting oil to the surface through production wells, pumping insulating compositions into the formation in combination with changing the operating modes of production and injection wells, wherein optimum modes providing maximum effect of injected water flow kinematics change in flooding elements are selected by machine learning methods. In the injection wells, for which the optimal water injection mode is less than the current one, the isolating compositions are injected. For injection wells, the optimal water injection mode in which is higher than the current one, treatment of the bottomhole formation zone, injection of water viscosity reducers or surfactants capable of being adsorbed on the phase boundary surface with corresponding reduction of their surface tension. According to the method, in the presence of an inactive well located between the injection well, in which the optimal water injection mode is less than the current one, and the production well, chemical compositions are injected into an inactive well in order to create watertight screens on the path of movement of the watering front.

EFFECT: invention provides higher efficiency of development of oil deposits and increased oil recovery of formations.

1 cl, 5 dwg, 2 tbl