Results of Modeling of the Processes of Generation, Migration and Accumulation of Hydrocarbons in the Eastern Part of the Scythian Platform

Abstract

Basic spatial and temporal regularities for development of the processes of generation, migration and accumulation of hydrocarbon fluids in the eastern part of the Scythian platform are determined and particularities of the generation and accumulation hydrocarbon systems in the northern platform boundary – Karpinsky ridge-Mangyshlak and Eastern Ciscaucasia oil and gas producing rocks are studied on the basis of application of the techniques for basin analysis and modeling of the hydrocarbon systems. The results of studying and modeling of the hydrocarbon systems prove that five hydrocarbon systems– Triassic, Jurassic, Cretaceous, Paleocene-Eocene and Oligocene-Miocene generation and accumulation hydrocarbon systems (GAHS) – can be defined within the sedimentary mantle of the eastern part of the Scythian platform. Two-dimensional models based on the regional seismic profile crossing the tectonic elements in the eastern part of the Scythian platform were created using the Temis Suite software package. Main directions for further performance of prospecting and appraisal works in the eastern part of the Scythian platform were determined on the basis of the performed investigations and modeling of GAHS. Differentiation of the investigated area is performed in terms of the type of predicted oil-and-gas content, age of the promising oil and gas complexes and their confinedness to the tectonic structures and zones.