METHOD OF HIGH VISCOUS OIL PREPARATION Russian patent published in 2017 - IPC C10G31/06 C10G7/02 F17D1/17 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to a method of high viscous oil preparation for pumping through a pipeline, the method can be used in oil industry. The method comprises oil heat treatment by heating in heat exchangers and thermal cracking oven, further separation of the thermal cracking products to gas/vapour/liquid and liquid phases in an evaporator, the later phase use as heating medium in the heat exchangers with further separation of the cooled liquid phase to two parts, one part is delivered for quenching cooling of the thermal cracking products prior to delivery to the evaporator, and another part after additional cooling is used as oil component pumped in the pipeline, further separation of gas/vapour/liquid phase of the thermal cracking products in a gas separator to hydrocarbon gas used as fuel of the thermal cracking oven and distillate. Wherein the distillate is subjected to additional separation to the hydrocarbon gas and stable distillate in a stabilization column having a nozzle, the hydrocarbon gas from the stabilization column is mixed with the hydrocarbon gas from the gas separator, and stable distillate after heating in heater is partially used as hot jet delivered to the bottom part of the stabilization column, and partially after cooling in cooler is used as live reflux delivered to the top part of the stabilization column, and balance quantity of the stable distillate is mixed with the cooled liquid phase of the evaporator and delivered for transfer.

EFFECT: method of high viscous oil preparation reducing losses during transport and storage by its physical stability increasing.

5 cl, 1 dwg, 2 tbl