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MODELING OF RHEOLOGICAL PROPERTIES MIXTURES OF CARBONS

Prof. Dr. Aleksandr Aleksandrov, Assoc. Prof. Artem Romashev

Abstract

Forecasting of viscosity value in blending of oil products is an important production task, settlement thereof influence the selection of its pumping mode and a number of other technological aspects. Quite high-precision models have been offered for the objects similar in viscosity, but at significantly different value of viscosity for the mixture components there is a great error. Graphic diagrams of interaction of petroleum-bitumen suspension-kerosene mixture viscosity at various ratios of its components and various temperatures have been developed in this work. Available models of viscosity forecasting for such a mixture have been analyzed and models considered have been classified. Required parameters and coefficients for construction of forecasting models on the basis of formulas have been calculated. Conformity of calculated expressions has been estimated. It has been established that the offered equations provide a significant error, when one attempts to apply them to high-viscous heavy oil. Based on the obtained data, an empirical model has been offered to forecast rheological properties of hydrocarbons and their mixtures. Coefficients comprised in the model have been calculated. It has been proved that the model suggested enables increasing accuracy of modeling, as well as reducing the number of experimental data for calculation of its parameters compared to well-known equations. A method of calculation of numerical coefficients for replication of the suggested approach to similar objects has been provided.

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DOI resolver: doi.org/10.5593/sgem2017/14/s06.092

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