Regional control factors of formation and deposition of petroleum accumulation in ancient sequences of the Siberian Platform

Regional petroleum geology

Section editor – PhD in geology and mineralogy Makarevich V.N.

Article # 42_2017	submitted on 11/24/2017 displayed on website on 12/11/2017
9 p.	Archegov V.B., Nefedov Yu.V.
pdf	Regional control factors of formation and deposition of petroleum accumulation in ancient sequences of the Siberian Platform
	The general picture of Siberian Platform petroleum accumulation distribution is their spatial connection with the basement faults, namely: the confinement to the ancient basement anteclise slopes, facing the conjugate one-age bends; number of accumulations confinement with interblock systems and zones that separate geological structures of different ages; the adjoining of sequences to the zones of large transverse grabens, which complicate the structures of these sections. A geological structure characteristic feature of all the accumulations is that the distribution of productive oil and gas potential over the area of the accumulation is determined by the lithological variability of the enclosing sediments regardless of what structural type they would not be confined, and fault tectonics significantly affects the conditions of collectors distribution of and the occurrence of additional fracture permeability. Analysis of hydrodynamic and thermobaric processes occurring in the accumulations sections makes it possible to draw conclusions about the great role of vertical redistribution of hydrocarbons in the process of reservoir formation in their state of the art and the youth of the accumulations reformation process in the Post-Pliocene period. Keywords: geological structure, basement faults, formation of accumulation, petroleum accumulation, vertical distribution of hydrocarbons, Siberian Platform.
article citation	Archegov V.B., Nefedov Yu.V. Faktory regional'nogo kontrolya formirovaniya i razmeshcheniya zalezhey nefti i gaza v drevnikh kompleksakh Sibirskoy platformy [Regional control factors of formation and deposition of petroleum accumulation in ancient sequences of the Siberian Platform]. Neftegazovaya Geologiya. Teoriya I Praktika, 2017, vol. 12, no. 4, available at: http://www.ngtp.ru/rub/4/42_2017.pdf
DOI	https://doi.org/10.17353/2070-5379/42_2017

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