ABSTRACT
This article discusses existing methods for increasing the efficiency of pipeline transport of viscous oils. In more detail, the authors considered a method for transporting viscous oil using various additives. It is known that the rheological properties of oil are the basic initial data for the selection of a rational method of transportation. In this regard, an analysis of rheological models of viscous fluids is presented. Also, this paper considers the calculation of the effectiveness of the use of additives and their influence on the rheological properties of viscous oil. Taking into account the parameters of the studied pipeline, an anti-turbulent additive was chosen. This additive reduces the coefficient of hydraulic resistance and increases the throughput of the pipeline. The results of experimental studies of the rheological properties of viscous oil are presented. Based on the results of the experiments, the authors obtained the dependence of the shear stress on the shear rate in the temperature range of 10-30 ℃ at different concentrations of the additive used and without it. Taking into account the obtained dependences, conclusions were drawn about the presence of non-Newtonian properties in the investigated oil. In addition, an analysis is made of the change in the rheological model when the concentration of the additive and the temperature of the transportation change. Based on the results of the studies, the authors performed the selection of the optimal pumping regime for the investigated oil.
