Izvestiya of Saratov University.

Earth Sciences

ISSN 1819-7663 (Print)
ISSN 2542-1921 (Online)


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Language: 
Russian
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Article type: 
Article
UDC: 
553.982.23

Petrogenic Water, Hydrothermal Process and Oil Migration in a Tectonically Activated Buried Continental Rift (West Siberia)

Autors: 
Korobov Aleksandr Dmitrievich, Saratov State University
Korobova Lyudmila Aleksandrovna, Saratov State University
Abstract: 

It was established that with convective heat and mass transfer in the region of the Krasnoleninskij swell (West Siberia), the pulsating lateral pressure regime used to contribute to interlayer water avalanche liberation from the Upper Jurassic-Lower Cretaceous smectites in the process of their hydromicatization. The resurgent (petrogenic) water constituted the basis of the hydrothermal solutions responsible for the processes of ultra-acid leaching, metasomatosis, hydrocarbon generation and migration. Enhanced evacuation of micro-oil from the source layers prevented its oxidation and promoted subsequent oil pool formation. That was mostly related to the periods of tectonichydrothermal activation of sedimentary basins, whether they were complicated or uncomplicated with rifting.

Reference: 

Работа выполнена при финансовой поддержке Минобрнауки России в рамках базовой части темы «Геология» (код проекта 1582, гос. регистрация № 1140304447).