Experimental studies of the process of displacement of industrial oil with a viscosity of 55.2 and 88.3 mPa s from a homogeneous porous medium at pressures in the range of 8–14 MPa and temperatures of 313.333 and 353 K. It is shown that an increase in the dynamic viscosity of hydrocarbons leads to a decrease in the amount of displaced hydrocarbon from the porous medium. It has been suggested that the reduction in the amount of hydrocarbon displaced is due to the low solubility of carbon dioxide in both of the tested hydrocarbons. The dynamic viscosity of industrial oil was calculated in the pressure range of 8–14 MPa on isotherms of 313, 333, and 353 K. It is shown that the dynamic viscosity at pressures of 12 and 14 MPa decreases by 100–150%, which leads to an increase in the mobility of hydrocarbons in a porous medium.
Radaev et al. (Sun,) studied this question.