Measuring electric resistivity of rock specimens injected with gas, liquid and supercritical CO2

Kyosuke Onishi, Yoshihiko Ishikawa, Yasuhiro Yamada, Toshifumi Matsuoka

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

CO2 sequestration in a deep aquifer is considered one of the most effective method to solve Global warming. We must understand the behavior of injected CO2 to confirm long-term stability and economic efficiency of CO2 sequestration. We tried to monitor the behavior of gas, liquid and supercritical CO2 injected into water-saturated sandstone by measuring the resistivity of rock specimens. CO2 of gas, liquid, and supercritical phases was flushed through the sandstone specimens at three different flow rates. We could monitor the time-lapse behavior of CO2 in water-saturated sandstones. Also, we tried to convert the resistivity data to the CO2 saturation using Archie's equation. The saturations estimated from resistivity becomes nearly equal to the values calculated from actual outflow volumes. This result indicates the high reliability of electric exploration to monitor CO2 saturation.

本文言語英語
ページ(範囲)1480-1484
ページ数5
ジャーナルSEG Technical Program Expanded Abstracts
25
1
DOI
出版ステータス出版済み - 1 2006
外部発表はい

All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学
  • 地球物理学

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