Comparative analysis of prospects for formation of large hydrocarbon accumulations in the north of the Tunguska syneclise
V. S. Starosel'tsev and T. A. Divina
Keywords: Basalt covers, petroleum potential of Paleozoic deposits, tectonic prerequisites
Pages: 1918-1926
Abstract
The prospects for oil and gas potential of the northern Tunguska syneclise are estimated with regard to quantitative oil-geologic characteristics of Riphean-Paleozoic deposits overlapped by Permian-Triassic basalts. These characteristics have been for the first time obtained for the inner regions of this syneclise. On the basis of spatial combination of the deepest (to 10 km and more) large negative structures of platform cover and adjacent uplifts – potential zones of gas and oil accumulation, – the areas of the most probable formation of large accumulations of hydrocarbons were supposed. Two of them, Upper Khugdyakit and Khantai, have been recommended for top-priority studies by parametric drilling to a depth of up to 3.5 km.
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