The article presents the corporate software package RN-DIGITAL CORE, which enables to fully implement the technology of digital core research, starting from the processing of tomographic images and ending with the calculation of the properties of standard and full-size core. For this purpose, a number of operations are performed, divided into four functional blocks and designed to analyze the void space, create a digital core double, simulate processes at the pore level and rescale properties. These operations are based on innovative methods, models and algorithms. At the same time, special attention is paid to ensuring the possibility of creating a high-quality digital core model and effective modeling of processes at the pore level. To do this, the user is provided with a wide range of approaches at all stages of digital core modeling. The article provides examples illustrating the use of the RN-DIGITAL CORE software package. In the first example, the features of creating digital counterparts of a real core are given and the properties obtained using digital core technology are compared with the data from laboratory core studies. It is shown that there is an acceptable level of correspondence between the calculated and laboratory data. The second example demonstrates a study that cannot be carried out in the laboratory – the effect of clays on the overall porosity and gas permeability of the rock.
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