Articles | Volume 7, issue 4
Research article
22 Jul 2016
Research article |  | 22 Jul 2016

Porosity and permeability determination of organic-rich Posidonia shales based on 3-D analyses by FIB-SEM microscopy

Georg H. Grathoff, Markus Peltz, Frieder Enzmann, and Stephan Kaufhold


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Short summary
This study improves our understanding of the evolution of pores in shales for modelling transport properties. 3-D microscopy on early and postmature Posidonia Shales showed similar porosities and pore size distributions. Large isolated pore clusters are within carbonates and clay minerals. Pores form during maturation in the postmature-matrix-filling organic matter. Modelled permeabilities are lowest perpendicular to bedding. They decrease with increasing maturity and are comparable to experimental data.