Издатель: Перо , Место издания: М. , Год издания: 2021

The article is devoted to the features of geological structure the conditions of formation and oil and gas potential of the clinoform complex of the Lower Cretaceous of the Gydan petroleum area (PA) of Western Siberia. Regional seismic complexes were identified, structural and thickness maps were constructed, paleogeographic reconstructions were performed. The main prospects for the search for hydrocarbon traps in the Berriasian-Lower Aptian deposits of the Gydan PA are associated with the Achimov oil and gas complex, the lenticular sandy-aleuritic layers of which are of deep-water genesis. The structure and seismogeological characteristics of the Achimov strata in the study area are considered. Based on the interpretation of drilling data and 2D seismic exploration, predictive maps of the thickness of the Achimov sand bodies were constructed, depocenters of accumulation of sandy material were mapped. Seismostratigraphic studies, which are based on a comprehensive analysis of the wave pattern of time seismic sections, dynamic and seismic facies analyzes, as well as paleotectonic and paleogeomorphological reconstructions, made it possible to identify oil and gas zones in the Achimov strata of the Gydan PA.