Abstract:

studying the processes of technologies for the production of high-viscosity hard-to-recover oils, natural bitumen in Russia, Venezuela. The article discusses information about associated non-ferrous metals, oil recovery factor, the reasons for the decline in oil recovery

Keywords: natural bitumen, high-viscosity oils, method of cold oil extraction with sand, Volga-Ural oil and gas province, East Siberian oil and gas province, Timan-Pechora oil and gas province, Venezuela