Home – Home – Jornals – Russian Geology and Geophysics 2002 number 1

In the latitudunal Ob' region and in northern West Siberia, the most petroleum-promising Neocomian deposits have been explored for decades.
In southeastern West Siberia, where hydrocarbon deposits are largely concentrated in the Upper Jurassic, the Neocomian geologic structure has never been modeled on the basis of complex data on seismic prospecting and deep drilling.
As part of the present study, we performed complex interpretation of materials of regional seismic prospecting and well survey, whose results were the first step to a regional seismogeological model for the structure of Neocomian deposits in southeastern West Siberia.
This work also addresses the questions related to estimation of the Neocomian petroleum potential in southeastern West Siberia. In particular, analysis of geological and geophysical materials suggests that the formation of hydrocarbon deposits is favored largely by tectonically active zones, with fractures crossing the Jurassic and Cretaceous deposits and capable to play the role of channels for migration of hydrocarbons from oil-producing rocks of the Bazhenov Formation to younger horizons.