稲田花こう岩の透水係数に及ぼす封圧および間隙水圧の影響について

• 高橋 学

  地質調査所環境地質部

• 平田 実雄

  石油資源開発 (株)

• 小出 仁

  地質調査所環境地質部

書誌事項

タイトル別名

• Effect of confining pressure and pore pressure on permeability of Inada granite.
• イナダ カコウガン ノ トウスイ ケイスウ ニ オヨボス フウアツ オヨビ カ

抄録

Permeability of Inada granite was measured under confining pressure up to 20MPa, and pore water pressure up to 16 MPa. The Inada granite has three preferred orientations of splitting planes which are perpendicular each others. A transient pulse method was used to measure the permeability up to nano darcy (10^-9) order in the three preferred orientations. The permeability is estimated from the decay curve of pulse of small pressure change combined with the compressibility and viscosity of water, and dimensions of sample. Linear decay characteristics indicate DARCY's law apparently hold even for this rather low pulse pressure.<BR>The measured permeability ranges from about 3×10^-8 to 5×10^-7 darcies. Permeability was not a simple function of the conventional effective confining pressure, that is, the difference between external confining pressure (P_c) and internal fluid pore pressure (P_p). Changes in permeability were found to be proportional to (bdP_p-adP_c), where the values of b/a are different for each three preexisting preferred orientations.

収録刊行物

• 応用地質

  応用地質 31 (3), 105-114, 1990

  一般社団法人 日本応用地質学会

キーワード

• General Medicine

詳細情報

• CRID: 1390001204095174400
• NII論文ID: 110003356380
• NII論文ID: 10003415498
• NII書誌ID: AN00026635
• DOI: 10.5110/jjseg.31.105
• ISSN: 18840973
• ISSN: 02867737
• ISSN: http://id.crossref.org/issn/02867737
• NDL書誌ID: 3701731
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3701731
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可