Impact of rock-collectors wettability on oil recovery factor
Representative statistical data served the basis for performing analysis of rocks wettability in the main oil producing regions of Perm region. Wettability is proved to be a complex function of lithological-physical characteristics of a formation and oil viscosity. Express-method of calculation of oil recovery factor is developed and tested; this method can be applied at the initial stage of development and exploitation of small oil deposits, when the required technological parameters are lacking.