Exploring the link between strength properties and microstructure in carbonates

Авторы: Berezina Irina, Patonin Andrey
Сборник: First International Meeting for Applied Geoscience & Energy Expanded Abstracts
Год издания: 2021
Издательство: Society of Exploration Geophysicists
Местоположение издательства: United States
Первая страница: 2378
Последняя страница: 2382
DOI: 10.1190/segam2021-3595024.1
Аннотация: This study is dedicated to the problem of linking the strength properties of carbonate rocks to their microstructure through the micromechanical modeling. The rock strength is associated with quadratic deviatoric stress averaged over the solid part of the rock. This stress measure is determined by the matrix shear modulus and the volume fraction as well as by the effective elastic tensor of the rock. To establish the relation between these characteristics and the microstructure parameters we considered three types of isotropic models on the core scale characterizing different microstructure of the rocks. We used global sensitivity analysis to identify the most important parameters of the models: macro- and micropores volume fraction and connectivity for effective elastic tensor and the matrix shear modulus, respectively. Also, these findings were complemented by the analysis against the experimental results of rock strength and inversion for microstructure model parameters.
Добавил в систему: Березина Ирина Александровна

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