HYDRODYNAMIC CALCULATION OF OIL PIPELINE AT TRANSPORTATION OIL WITH NON-NEWTONIAN PROPERTIES AT LOW SHEAR RATES

As a result of processing the experimental data, it was found that the oil of dolina fields at temperatures up to 30 °C and a shear rate of up to 200 s-1 during pumping by an oil pipeline is characterized by the properties of a non-linear viscous-plastic fluid. A method was proposed for processing the flow curves of dolina oil to determine the coefficients of the Balkley-Herschel rheological model, and analytical dependences of these coefficients on temperature were obtained. A simplified method was been developed for the hydrodynamic calculation of an oil pipeline during the pumping of dolina oil at a structural regime.