METHOD FOR ASSIGNING INJECTION AND PRODUCTION WELLS AND CHANGING THEIR PERFORATION INTERVALS Russian patent published in 2018 - IPC E21B47/00 G06F17/50 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to analysis and simulation of the development of oil fields. Method of assigning injection and production wells and changing their perforation intervals at a known well location includes calculating the target functional using formation parameters such as porosity, permeability, effective thickness, volume, critical saturation of oil and water, viscosity of fluids. To take into account additional filtration resistance to the flow of a fluid in the wellbore space during hydrodynamic modeling of oil fields, as well as reducing the time costs for both calculations and implementation of the method, additionally use the skin factor, and the change in the target functional is calculated using a mathematical expression, using technical limitations on the work of the wells P_wk,min≤P_wk≤P_wk,max, Q_wk,min≤Q_wk≤Q_wk,max k=1, …, N_w., then pressure in inhomogeneous formation is found from the system of equations.

EFFECT: use of invention allows one of the most favorable variants of the development system or the position of the perforation intervals of the wells to be obtained at an acceptable design time.

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