Oil and gas content of the Upper Jurassic and Cretaceous deposits of Western Siberia and fault tectonics

Abstract

Large faults mainly predetermined the distribution of hydrocarbon deposits in the Meso-Cenozoic sedimentary cover of Western Siberia and served as migration paths upward the section. The formation of faults had a significant impact on the redistribution of hydrocarbons both between oil and gas bearing formations and by fluid type. In the direction from south to north, the oil and gas bearing level, the number of layers in the field and the number of gas fields is increased. It is proposed to revise the models of tectonically limited layers from the point of view of the theory of the three-layer structure of the reservoir.