Composition and potential oil content of the upper part of the pre-jurassic complex of the Kogalym-Pokachev region
UDC: 550.8
DOI: -
Authors:
GALIMOVA GULNAZ M.
1,
BEREZIN DANILA O.1,
CHERNYSHOVA KSENIA T.1,
TITOV YURIY V.1
1 LUKOIL-Engineering LLC, Kogalym, Russia
Keywords: weathering crust, rhyodacites, basalts, Pre-Jurassic complex, core, horizon
Annotation:
The object of the study is the rocks of the Pre-Jurassic complex and the products of its hypergene alteration (weathering crust), opened in 9 boreholes within the study area. In this work, an additional complicating factor is the poor study of the section by core within the territory under consideration. The rocks of the complex are characterized by a complex composition, which is the result of the impact of hypergene, catagenetic and, possibly, hydrothermal processes on the parent rock. In the section of the weathering crust, according to the degree of alteration of the bedrock, three vertical horizons are distinguished and described in detail, smoothly passing one into another (disintegration, leaching and hydrolysis). The confinement of the productivity of the rocks of the Pre-Jurassic complex to certain horizons is noted.
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