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In connection with finding - out of a question about probable feeding of deposits by hydrocarbons, acting from the basement, the results of integrated geologicalgeochemical research of the dynamics of variation of chemical and geochemical parameters of oils and bitumen from the rocks of sedimentary cover and basement in the zones of probable inflow of hydrocarbons at the central areas of the Romashkino oil field are presented in this work. Also the results of researches on comparative studying of changes in organi...

The paper reveals the distinctive features of the change in the composition of natural bitumen - asphaltite from from the sandstones of the Permian sediments of the Spiridonovsky field in the territory of Tatarstan, in model experiments at a temperature of 250 пїЅC, characteristic for steam-thermal impact on the formation, and the pressure in the system of not more than 2 MPa. The choice of low pressure is due to the fact that bituminous rocks in the Permian sediments occur at relatively shallow depths in the near...

Depositions of the Domanic type in the territory of Tatarstan are stratigraphically associated with carbonate-siliceous deposits of the Upper Devonian part of the section. These deposits, enriched with organic matter, are characterized by the ability to generate liquid and gaseous hydrocarbons and accumulate them in the form of deposits of unconventional type. In this paper, the results of geochemical studies of rock samples from the depth interval 1705-1728 m of the Semi-Bug-Buregian deposits of the Berezovskaya ...

Based on a comparative analysis of biomarker data of the bituminous of the rocks of different ages located near the Sarayli and Altunino-Shunak troughs, various sources of their formation are shown. It is established that disjunctive rocks in the development zone of the Sarailin trough serve as ways for lateral and vertical migration of hydrocarbons of the one degree of catagenetic maturity to places of productive deposits. In the case of the Altunino-Shunak trough, two types of hydrocarbons are observed, differin...

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 250-350пїЅC, at which it is possible to achieve an in-situ oil upgrading through the low-temperature oxidation reactions of petroleum hydrocarbons. Usual...

The objects of the study were samples of Domanik rock from Upper Devonian siliceous-carbonate and carbonate sediments of the Romashkin? oil field, which occurs in the central part of the South Tatarian arch in Tatarstan. The composition of organic matter and mineral rock components and bitumoids extracted from them was studied by thermal analysis, X-ray diffraction analysis, SARA analysis and gas chromatography. Significant differences in the mineralogical composition and content of organic matter are found in sam...