Articles | Volume 12, issue 1
Solid Earth, 12, 1–14, 2021
https://doi.org/10.5194/se-12-1-2021
Solid Earth, 12, 1–14, 2021
https://doi.org/10.5194/se-12-1-2021

Research article 11 Jan 2021

Research article | 11 Jan 2021

Simulating permeability reduction by clay mineral nanopores in a tight sandstone by combining computer X-ray microtomography and focussed ion beam scanning electron microscopy imaging

Arne Jacob et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Arne Jacob on behalf of the Authors (13 Nov 2020)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (22 Nov 2020) by Florian Fusseis
AR by Arne Jacob on behalf of the Authors (23 Nov 2020)  Author's response    Manuscript
ED: Publish as is (23 Nov 2020) by Florian Fusseis
ED: Publish as is (25 Nov 2020) by Federico Rossetti(Executive Editor)
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Short summary
In this work, we combined different imaging and experimental measuring methods for analysis of cross-scale effects which reduce permeability of tight reservoir rocks. Simulated permeability of digital images of rocks is often overestimated, which is caused by non-resolvable clay content within the pores of a rock. By combining FIB-SEM with micro-XCT imaging, we were able to simulate the true clay mineral abundance to match experimentally measured permeability with simulated permeability.