Abstract
The work is devoted to one of the urgent problems of the oil and gas complex - the transportation of high-viscosity oils. The object of the study was the high-viscosity high-sulphur mixed oil of the Ashalchinskoye field. The sonochemical treatment of oil made it possible to reduce the effective viscosity by 35-40% and the pour point by 15-20 °C. Pilot tests of the developed unit and sonochemical technology have shown the possibility of reducing the load on pumping stations of main pipelines, reducing the number of hot oil pumping stations, and reducing the amount of emissions of organic sulfur compounds into the atmosphere. Keywords: high-viscosity oil; petroleum dispersed systems; ultrasound; pour point depres-sants; sonochemical effect; effective viscosity; pour point.
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