Release:
2024. Vol. 10. № 3 (39)About the authors:
Mikhail A. Zagorovskiy, Specialist, Department of Scientific and Technological Development, Tyumen Petroleum Research Center, Tyumen, Russia; Postgraduate Student, Department of Applied and Technical Physics, School of Natural Science, University of Tyumen, Tyumen, Russia; mazagorovskiy2@tnnc.rosneft.ruAbstract:
The article describes the results of a search for multiparametric empirical correlations to determine the boundary values of the functions of the relative phase permeability (RPP) of the oil-water system — residual water saturation, residual oil saturation, phase permeability of oil with residual water saturation and phase permeability of water with residual oil saturation. The study was carried out by using a laboratory data on four groups of terrigenous rocks of oil field developed by PJSC Rosneft Oil Company, which differ from each other in characteristic features of the structure of the pore-space and the properties of reservoir fluids. Multiparametric dependencies were searched in a form of a combination of dimensionless influencing parameters in proper degrees. An analysis of the sensitivity of dependencies to the volume of the data sample was carried out. The obtained correlations can be used for a preliminary assessment of the boundary values of the functions of the RPP and can be refined as experimental data accumulate. On the basis of empirical correlations and a previous model of filtration of an oil-water mixture at the core scale, a fully calculated method for determining RPP has been implemented. Method can be used in conditions of shortage or absence of core material, including for reservoir zones in which core sampling has not been carried out.Keywords:
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