Current practice of accounting pressure–temperature conditions in porosity evaluation

Background. The problem of taking into account pressure–temperature conditions in estimating the porosity coefficient is raised. Objective. To emphasize the relevance of the problem and demonstrate the authors’ experience using the example of materials from terrigenous deposits. Materials and methods. A modern methodological approach to calculating effective isostatic pressure using core data, the results of geophysical studies of wells and testing of formations on a cable is considered. Results. The results of petrophysical modeling are presented, comparing the obtained conversion coefficients from atmospheric conditions to pressure–temperature conditions for the porosity coefficient, as well as reference values of the conversion coefficients based on the authors’ experience. Conclusions. The importance of interaction and simultaneous work of the specialists in different areas for effective planning of laboratory core research programs is noted.