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Measurement of Permeability of Rock by Measns of X-Ray CT エックスセン ＣＴ ニ ヨル ガンセキ ノ トウスイ ケイスウ ノ ソクテイ X線CTによる岩石の透水係数の測定 菅原, 勝彦 147484 スガワラ, カツヒコ Sugawara, Katsuhiko Sato, Akira 147184 Obara, Yuzo 147110 尾原, 祐三 オバラ, ユウゾウ 菅原, 勝彦 147484 スガワラ, カツヒコ Sugawara, Katsuhiko 佐藤, 晃 147184 Obara, Yuzo 147110 尾原, 祐三 オバラ, ユウゾウ 柳迫, 将秀 147478 360 X線CT 岩石 透水 画像解析 可視化 X-ray CT Rock Permeability Image Processing Visualization application/pdf 論文(Article) X-ray Computed Tomography (CT) is utilized to measure the permeability of rock and to visualize the migration of fluid fronts. The X-ray CT makes it possible to evaluate the attenuation of X-ray at each point within rock, by digitizing shadow pictures taken from various directions and subsequent image reconstruction, and the subtraction of CT images provides successfully the time-dependent distribution of the water ratio within rock. A percolation experiment using a disc specimen is proposed to measure the coefficient of permeability. Apparatus, operation procedure and necessary data processing are described along with the theory for interpreting the experimental results. Thus, it is stated how the coefficient of permeability is determined by means of the X-ray CT. The proposed measurement is supported by case study. http://www.jstage.jst.go.jp/article/shigentosozai/115/11/115_803/_article/-char/ja/ journal article 社団法人 資源・素材学会 1999-11-25 VoR application/pdf https://kumadai.repo.nii.ac.jp/record/23975/files/mmij_115_11.pdf http://hdl.handle.net/2298/16251 https://kumadai.repo.nii.ac.jp/records/23975 jpn 18806244 © 1999 The Mining and Materials Processing Institute of Japan