Engineering Physics Annotation << Back The Dynamic Viscosity of Hydrocarbons Saturated With Supercritical CO2 in a Wide Range of Pressures and Temperatures by the Rolling Ball Method Zakiev I.D., Radaev A.V., Sabirzyanov A.N., Salimyanov I.T., Shavaleev I.I. The dynamic viscosity of kerosene and transformer oil saturated with supercritical fl uid was measured in the pressure range up to 20 MPa, at isotherms 313 and 333 K by the rolling ball method. It has been shown that the decrease in dynamic viscosity of a hydrocarbon is greater the higher its initial viscosity. It has been shown that an increase in the temperature of a hydrocarbon saturated with supercritical CO2 in the entire studied pressure range leads to a decrease in the dynamic viscosity of the hydrocarbon. It has been found that an increase in pressure in the hydrocarbon-supercritical CO2 system leads to a decrease in the dynamic viscosity of the hydrocarbon. Theoretical substantiation of change of dynamic viscosity of hydrocarbons in wide range of pressures, temperatures, saturation with supercritical CO2 is proposed. The dynamic viscosity of hydrocarbons saturated with supercritical CO2 is described using the modifi ed Standing, Chew and Connelly and I.I. Dunyushkin equations. Empirical coeffi cients of equations were obtained by minimizing the error function. The standard deviation of the calculated data from the experimental data does not exceed 4.8%. Experimental and calculated results on the dynamic viscosity of hydrocarbons saturated with supercritical CO2 can be used to develop technical and economic recommendations for the design of oil fi elds. Keywords: supercritical fluid, dynamic viscosity of hydrocarbon, viscometry, rolling ball method. DOI: 10.25791/infi zik.3.2025.1468 Pp. 43-54.