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Empirical equations for bulk and shear moduli of dry sandstones based on grain-scale numerical simulations

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Authors
Madadi, Mahyar
Date
2013
Type
Conference Paper

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Madadi, M. 2013. Empirical equations for bulk and shear moduli of dry sandstones based on grain-scale numerical simulations, in EAGE (ed), Proceedings of the International Workshop on Rock Physics at NOC, Aug 4-9 2013. Southampton: EAGE.
Source Title
Second International Workshop on Rock Physics
Source Conference
Second International Workshop on Rock Physics
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Department of Exploration Geophysics
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Abstract

Elastic properties of rocks are largely controlled by parameters of grain contacts. In this paper, many computer 3D models of grain aggregates are generated for different parameters of grain contacts. Then, for each of these models, elastic properties are computed using finite element simulations. Finally, empirical fits are proposed that define elastic moduli of these sandstones as functions of grain contact parameters. The results show good agreement between the numerical simulations and predictions of the empirical fit.