Geology, geography and global energy

Scientific and Technical Journal

Genesis of North Caspian’s oil

2014. №4, pp. 52-57

Serebryakova Valentina I. - Senior Lecturer, Astrakhan Institute of Civil Engineering, 18b Tatishchev st., Astrakhan, 414056, Russian Federation, Geologi2007@yandex.ru

Serebryakov Oleg I. - D. Sc. in Geology and Mineralogy Professor, Astrakhan Institute of Civil Engineering, 18b Tatishchev st., Astrakhan, 414056, Russian Federation, Geologi2007@yandex.ru

Due to the active development of the northern Caspian Sea area, which occupies a considerable part of the southern regions of the Caspian depression, geochemical rationale of source complexes in Paleozoic subsalt is scientific and practical interest for lighting prospects of exploration for oil and gas in the northern regions of the Russian sector of the Caspian Sea area. Complex geochemical studies include traditional bituminologiyu (determination of TOC, chloroform and petroleum ether-bitumens), gas chromatography, infrared spectroscopy, and pyrolytic methods using Rock Eval. In geochemistry correlation hydrocarbon composition of oils and bitumens (organic substances) is considered one of the main qualitative methods to identify possible sources of oil formation. Comparative analysis naphthides reveals the link between oil and organic matter of source of certain strata and hydrocarbon fluids to differentiate genetic types. A detailed study and analysis bituminologicheskih materials and pyrolysis of organic matter can diagnose oil source rock sediments in the subsalt section. In the outer zone is a fat-nizhnefranskogo lives, Tournaisian and medium-verhnevizeyskogo complexes. Within the boundaries of the inner zone assigned to them Upper Devonian and Lower Permian rocks.

Key words: нефть, генезис, геохимия, Северный Прикаспий, битумоиды, породы, oil, genesis, geochemistry, North Caspian Sea, bitumens, rocks

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