FIELD: methods of evaluation of filtration-storage capacity of water-oil formations by means of underground hydraulics; applicable in control of oil recovery process by regulation of withdrawal of oil and water from oil filed wells. SUBSTANCE: method includes measurement of production rate of oil and water in all wells of pool and their viscosity under formation conditions. Measured additionally is cumulative production of oil for each period of production rate measurement and using known value of oil geological reserves, running values of formation water saturation and its change are determined. Then subject to determination are corresponding to them values of relative phase permeability for oil and water by offered mathematical formulas. EFFECT: determination of relative phase permeability of water-oil formations in their natural occurrence in selected system of development, and using of these data for designing of further operation of pool. 1 dwg
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