Key words: residual oil saturation, displacement efficiency, oil viscosity, permeability, porosity, initial oil saturation.
The laboratory data on the residual oil saturation and efficiency of waterflood high-viscosity oil displacement from the А4 layer of Bashkirian stage by the fields of the Samara and Ulyanovsk regions are generalized. The rectified correlation dependences of residual oil saturation and waterflood oil displacement efficiency on the reservoir rock permeability and mobility are proposed on the basis of the analysis of laboratory data and values, accepted in the works on the calculation of the oil and gas reserves and the design documents.
