Berezovskaya formation: defining the hydrocarbon potential within the license area

Abstract

Today, the study of the Berezovskaya formation is a relevant task, since the search and confirmation of new gas sources will replenish the resource base and maintain the planned production capacity. The article provides a comprehensive analysis of the hydrocarbon resource potential of the Upper Cretaceous deposits of the Berezovskaya formation. The analysis was focused on the regional structure of the area, i.e. paleogeographic environments of the Upper Cretaceous interval formation, structural traps distribution within the interval. In addition, the thickness and paleorelief maps of the Lower Berezovskaya subformation were examined. The main features of the studied area, as well as the challenges faced within the interval, such as the high content of clay minerals swelling when in contact with water, low permeability, and lithological and mineralogical heterogeneity, were identified. The data obtained from well logging indicate that the NB1 reservoir interval of the Lower Berezovskaya subformation is characterized by high productivity within the studied area. Therefore, a detailed assessment of the resources and production potential has been initiated. Based on the results of the study, the prospects of the studied interval have been evaluated, and the potential of promising targets within NB1 reservoir has been assessed.