One of the criteria for identification of near-critical hydrocarbon systems
UDC: 550.8
DOI: -
Authors:
MULYAVIN S.F.
1,
STESHENKO I.G.1,
BAZHENOVA O.A.1
1 Industrial University of Tyumen, Tyumen, Russia
Keywords: dynamic viscosity, hydrocarbon system, liquid, oil, hydrocarbon gas, pressure, temperature, viscosity of the liquid
Annotation:
The article considers a unique type of reservoir hydrocarbon systems in a near-critical phase state. Typical features of reservoir fluids found in deposits of natural hydrocarbons are presented, changes in the viscosity of hydrocarbon gases at temperatures of 0 and 200 °C are analyzed, and the effect of pressure on the viscosity of pure gases was studied, as well as the change in the viscosity of gaseous hydrocarbons at atmospheric pressure and various temperatures are considered, the formula for calculating the coefficient of dynamic viscosity of a mixture of hydrocarbons is given. Thus, it was found that hydrocarbon and non-hydrocarbon gases have a viscosity in the range from 0,001 to 0,1 mPa·s.
The viscosity of liquid hydrocarbon components was also analyzed, such as methane hydrocarbons (alkanes); hydrocarbons, derivatives of cyclopentane and cyclohexane (naphthenes); ethylene hydrocarbons (olefins); cyclohexene; diphenylmethane hydrocarbons (diolefins); aromatic hydrocarbons. For liquid hydrocarbon and non-hydrocarbon components, the viscosity varies from 0,1 mPa·s.
It is proposed to expand the characteristics of reservoir fluids of natural hydrocarbon deposits by including the dynamic viscosity of the fluid in the list of criteria.
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