Research of the microstructure features of Bazhenov deposits and selection of the optimal model for creating a digital twin of the rock

Abstract

The spatial microstructure of the Bazhenov Formation samples was studied according to FIB-SEM data to prepare a digital model and calculate filtration-capacitance properties. Digital core modeling is aimed at complementing traditional laboratory studies of rock samples with computational experiment capabilities and allows not only to predict the amount of hydrocarbons that can be extracted from a field, but also to plan optimal methods for its development. The possibilities of digital core technology have been tested on highly permeable rocks, while for non-traditional ones there are still questions about the choice and description of a porous medium, primarily related to the need to switch to the submicron and nano scale. The present study shows the difficulties associated with the preparation of a digital model based on FIB-SEM material of the Bazhenov Formation, as well as modeling and validation of properties.