HR: 0800h
AN: MR31C-0524    [Abstracts]
TI: Effects of solution composition on water permeability in a Fontainebleau sandstone
AU: * Nakajima, T
EM: tnakajima@ess.sci.osaka-u.ac.jp
AF: Department of Earth and Space Science, Graduate School of Science, Osaka University, 1- 1 Machikaneyama-cho, Toyonaka, Osaka, 5600043, Japan
AU: Yokoyama, T
EM: tadashi@ess.sci.osaka-u.ac.jp
AF: Department of Earth and Space Science, Graduate School of Science, Osaka University, 1- 1 Machikaneyama-cho, Toyonaka, Osaka, 5600043, Japan
AU: Hirono, T
EM: hirono@ess.sci.osaka-u.ac.jp
AF: Department of Earth and Space Science, Graduate School of Science, Osaka University, 1- 1 Machikaneyama-cho, Toyonaka, Osaka, 5600043, Japan
AU: Nakashima, S
EM: satoru@ess.sci.osaka-u.ac.jp
AF: Department of Earth and Space Science, Graduate School of Science, Osaka University, 1- 1 Machikaneyama-cho, Toyonaka, Osaka, 5600043, Japan
AB: Permeability of aqueous fluids is an important transport property in geological systems. Extensive work has been carried out to investigate the controlling factor of permeability such as porosity and pore geometry. Although natural water has a wide variation in chemical composition, pure water has generally been used for the permeability measurement and the effect of solution composition remains to be understood. In this study, we performed the permeability measurement using aqueous solution with different composition (pure water, NaCl and NaHCO₃) to evaluate the effect of solution composition on water permeability. A Fontainebleau sandstone, composed of ~100% quartz, was used as the sample. We will report the preliminary results of these experiments.
DE: 3630 Experimental mineralogy and petrology
DE: 3914 Electrical properties
DE: 5139 Transport properties
SC: Mineral and Rock Physics [MR]
MN: 2007 Fall Meeting