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With the decrease of conventional oil production, the role of heavy hydrocarbons in the world energy balance will continue to increase in the near future. Heavy oil and natural bitumen as two of the alternative sources are perhaps the most readily available to meet short- and long-term needs. Intrastratal oxidation requires a formation temperature in the range of 250-350°C, at which it is possible to achieve an in-situ oil upgrading through the low-temperature oxidation reactions of petroleum hydrocarbons. Usually...

Bitumen deposits in Permian sediments in the Volga-Ural region are interesting as sources of unconventional oil. The reservoir rocks in the bituminous deposits are sand and sandstone of varying degrees of strength. For the prognosis of productive areas, it is important to study the peculiarities of the composition of bitumen-containing rocks and the mechanisms of localization of oil matter in them. These processes are closely related to the conditions of formation of the surrounding rocks. We examined samples of b...