REGULATION OF THE SEQUENTIAL TRANSPORTATION MODE DIFFERENT SORTS OF OIL AT CHANGE OF ROTATIONAL FREQUENCY OF OIL PUMPING UNITS

Were established regularities at changes of flow capacity of the oil pipeline and the unit costs of electricity during the sequential pumping of different-grade oils. It was based on the results of mathematical modeling of the hydrodynamic processes of the joint operation of centrifugal pumping units and the pipeline. The technological and economic feasibility of the use of pumping units with a frequency-controlled drive to ensure a constant volume flow of oil during the displacement of one type of oil by another was proved.