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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Cited articles

Abell, A. B., Willis, K. L., and Lange, D. A.: Mercury Intrusion Porosimetry and Image Analysis of Cement-Based Materials, J. Colloid Interf. Sci., 211, 39–44, https://doi.org/10.1006/jcis.1998.5986, 1999. 
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Andrä, H., Combaret, N., Dvorkin, J., Glatt, E., Han, J., Kabel, M., Keehm, Y., Krzikalla, F., Lee, M., Madonna, C., Marsh, M., Mukerji, T., Saenger, E. H., Sain, R., Saxena, N., Ricker, S., Wiegmann, A., and Zhan, X.: Digital rock physics benchmarks–part II: Computing effective properties, Comput. Geosci., 50, 33–43, https://doi.org/10.1016/j.cageo.2012.09.008, 2013b. 
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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.