TO THE PROBLEM OF REFINING THE WESTERN AND EASTERN BOUNDARIES OF THE ACHIMOV CLINOFORM COMPLEX (
West Siberia)
V.N. Borodkin1,2, A.R. Kurchikov1
1West Siberian Affiliate of the A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, ul. Volodarskogo 56, Tyumen ’, 625670, Russia
arkurchikov@tmnsc.ru
2Tymen’ State Petroleum University, ul. Volodarskogo 38, Tyumen’, 625000, Russia
Keywords: Achimov rock unit, lithofacies zoning, sedimentation model, clinoform, Yanov Stan Formation, West Siberia
Abstract
A brief summary of different viewpoints on the sedimentation model for the Achimov rock unit in West Siberia is presented. The differences in the concepts of the rock unit structure have led to ambiguous approaches to mapping of the boundaries of its area. Our study of the clinoform structural model for Neocomian section yielded geological and geophysical data substantiating the positions of the western and eastern boundaries of the Achimov rock unit.
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