Influence of hydrodynamic cavitation on the rheological properties and microstructure of formulated crude oil
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The article presents the results of theoretical and experimental studies on the mechanical activation of viscous oil, which confirmed the effectiveness of cavitation on their rheological properties. The major making source of raw materials of oil branch stocks heavy and bituminous crude oils are. Improvement of technologies transportations it is, caused by their high resource potential. Capacity and economic efficiency of the oil pipeline depends on properties of the pumped-over oil. The main obstacle for ensuring necessary speed is viscosity. Recently the steady tendency to magnification of bulks of haul, oil and oil products was out lined. Thus, for problem solution on magnification of bulk of an oil pumping and oil products, developments new or optimization of applied technologies of haul of crude oil and crude oil products taking into account their rheological behavior and operating characteristics of pipelines are indispensable. With that, end in view the big practical and theoretical interest is, represented by working out of new methods of struggle against formation of paraffin adjournment. Considering problem urgency, from our party experiences on influence studying cavitation on formation asphaltene - pitch - paraffin adjournment on an internal surface of the pipeline have, been spent. The possibility of an intensification of process of influence of chemical reagent by cavitation for decrease in viscosity of oil is established. Results of pilot studies on complex influence of chemical reagents and cavitation on viscosity crude oil with various structural and group structure are received. As have shown experiments, as a result cavitation in oil there are irreversible changes of viscosity, pressure of sated steams, shares: paraffin, asphaltene and pitch hydrocarbons.
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