Viscous oils and heat flux level in territories of the Volga-Urals, West - Siberian and Timan-Pechora oil-bearing basins

Paper is devoted to review of general properties of viscous oils of oil-bearing territories of Volga-Urals, West- Siberian and Timan-Pechora depending on heat flux level. Analysis of spatial structure of heat flux by its level was carried out on oil-bearings territories. The relationship between heat flux level and viscosity of oil in oil bearing territories was established. It is shown that increase of heat flux level is accompanied by viscosity of oil decrease. The relationship between heat flux level and contents of sulfur, paraffins, resins and asphaltenes in oils are studied. It is shown that content of sulfur, resins and asphaltenes decreases under heat flux level grow and contents of paraffins increases.