Abstract
In this work, a complex approach to studying a Paleozoic base structure of the East Siberian plate is considered. The area of research is dated to the Nurol trough in the tectonical plane, and despite a significant level of exploration maturity by various geophysical methods and drilling, there are many questions and unresolved problems.
Even a question as to correct mapping of pre-Jurassic surface remained opened until now as the roof of a Paleozoic section is changed by a paleodenudation so that the acoustic properties come nearer to the horizons of the bottom Jurassic complex. Also a seismic picture is complicated by a great number of various amplitude and extent tectonic deformations and the phenomenon of an interference connected with discordant bedding of the Jurassic sedimentary formation on the Paleozoic base.
To create an authentic geological model of reservoir structure, detailed interpretation of 3D seismic data combined with geophysical logging data was required. This interpretation includes structural, paleotectonical, seismic, and facial and dynamic analysis of the data being interpreted. The results of the analysis relate a certain regularity in forming a Paleozoic complex and reveal the most prospective areas of oil deposits.
