Minkowski Functional Evaluation of Representative Elementary Volume of Rock Microtomography Images at Multiple Resolutions

Minkowski Functional Evaluation of Representative Elementary Volume of Rock Microtomography Images at Multiple Resolutions

Saeid Sadeghnejad, Marcel Reinhardt, Frieder Enzmann, Pit Arnold, Bianca Brandstätter, Holger Ott, Fabian Wilde, Sarah Hupfer, Thorsten Schäfer, Michael Kersten

Although the representative elementary volume (REV) analysis for hydraulic properties is straightforward, it is computationally expensive. This study estimated hydraulic pore-scale properties during REV evaluations by Minkowski functionals. One carbonate and two sandstone samples were scanned at multiple resolutions by both laboratory and synchrotron tomography (DESY). After reaching the REV for porosity, the REV for the Minkowski integrals (mean and total curvature) agreed well with the permeability REV for large-volume image sizes. We also showed that the properties obtained from the rebinned images differ entirely from that of actual scans at the same resolution.

Advances in Water Resources 179, 104501 (2023)
Corresponding Author: Saeid Sadeghnejad

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