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GI | Articles | Volume 8, issue 1
Geosci. Instrum. Method. Data Syst., 8, 55-61, 2019
https://doi.org/10.5194/gi-8-55-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Geosci. Instrum. Method. Data Syst., 8, 55-61, 2019
https://doi.org/10.5194/gi-8-55-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 08 Feb 2019

Research article | 08 Feb 2019

The influence of sample geometry on the permeability of a porous sandstone

Michael J. Heap
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Cited articles  
Ayling, M. R., Meredith, P. G., and Murrell, S. A.: Microcracking during triaxial deformation of porous rocks monitored by changes in rock physical properties, I. Elastic-wave propagation measurements on dry rocks, Tectonophysics, 245, 205–221, https://doi.org/10.1016/0040-1951(94)00235-2, 1995. 
Baud, P., Zhu, W., and Wong, T.-f.: Failure mode and weakening effect of water on sandstone, J. Geophys. Res., 105, 16371–16389, https://doi.org/10.1029/2000JB900087, 2000. 
Baud, P., Klein, E., and Wong, T.-F.: Compaction localization in porous sandstones: spatial evolution of damage and acoustic emission activity, J. Struct. Geol., 26, 603–624, https://doi.org/10.1016/j.jsg.2003.09.002, 2004. 
Brace, W., Walsh, J. B., and Frangos, W. T.: Permeability of granite under high pressure, J. Geophys. Res., 73, 2225–2236, https://doi.org/10.1029/JB073i006p02225, 1968. 
Caine, J. S., Evans, J. P., and Forster, C. B.: Fault zone architecture and permeability structure, Geology, 24, 1025–1028, https://doi.org/10.1130/0091-7613(1996)024<1025:FZAAPS>2.3.CO;2, 1996. 
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To better understand the influence of sample geometry on laboratory measurements of permeability, the permeabilities of sandstone samples with different lengths and diameters were measured. Despite the large range in length, aspect ratio, and volume, the permeabilities of the samples are near identical. This is due to a homogeneous porosity structure and the small grain/pore size with respect to the minimum tested diameter and length. More tests are now needed to help develop such guidelines.
To better understand the influence of sample geometry on laboratory measurements of...
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