Journal article

Drained pore modulus and Biot coefficient from pore-scale digital rock simulations

Shakil Ahmed, Tobias M Mueller, Mahyar Madadi, Victor Calo

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2019

Abstract

We present a digital rock workflow to determine poroelastic parameters which are difficult to extract from well-log or laboratory measurements. The drained pore modulus is determinant in the compaction problem. This modulus represents the ratio of pore volume change to confining pressure when the fluid pressure is constant. In laboratory experiments, bulk volume changes are accurately measured by sensors attached to the outer surface of the rock sample. In contrast, pore volume changes are notoriously difficult to measure because these changes need to quantify the pore boundary deformation. Hence, accurate measures of the drained pore modulus are challenging. We simulate static deformation e..

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University of Melbourne Researchers