Abstract
Often, production geophysics is the main and widespread method in the oil and gas industry. Well logging curves have the most complete characteristics when they are based on the study of direct material, which is the core. This scientific project is mainly aimed at studying the relationship of reservoirs of different generations and their facies belonging, which contribute to a more correct understanding of the structure of exploitation objects, taking into account lithological heterogeneity and dissection of productive horizons. Application of the practical value of knowledge of the features and patterns of formation of sand bodies in the further development of the field, in order to increase oil recovery factors. In this article, we compare reservoir intervals composed of both medium and coarse-grained sandstones with well logging data, and consider their spatial distribution according to seismic-attribute analysis based on 3D seismic data. Further, based on the results of the spectrometric gamma logging on the core, the core and well logging were linked in order to more accurately determine the petrophysical properties of lithofacies. In conclusion, brief conclusions of practical and laboratory work are summarized and final conclusions are drawn.