HIGH-VISCOSITY OIL TREATMENT METHOD Russian patent published in 2015 - IPC C10G31/06 F17D1/16 

FIELD: oil and gas industry.

SUBSTANCE: oil is treated by heating in fee heat exchanger with further division of thermally treated oil flow into two parts, one part is sent to thermal cracking while the other is mixed with thermal cracking products, then the received raw mixture is cooled down up to temperature fit for transportation through a pipeline. Thermal cracking products are subject to division into gas and vapour-liquid phase and liquid phase in an evaporator, at that liquid phase from the evaporator is fed as heat medium to heat exchangers with further division of the cooled down liquid phase into two parts, one part is fed for quenching of thermal cracking products before delivery to the evaporator while the other one is fed for mixing with thermally treated part of oil, whereat gas and vapour-liquid phase of thermal cracking products is cooled and sent to division at a gas separator into gas used as fuel gas in the thermal cracking oven and distillate fed for mixing with the received raw mixture to the pipeline.

EFFECT: reduced oil viscosity with simultaneous reduction in power consumption by operations on high-viscosity oil treatment for transportation through a pipeline.

8 cl, 1 dwg, 1 ex