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

Kyosuke Onishi, Yoshihiko Ishikawa, Yasuhiro Yamada, Toshifumi Matsuoka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationSociety of Exploration Geophysicists - SEG International Exposition and 76tth Annual Meeting 2006, SEG 2006
PublisherSociety of Exploration Geophysicists
Pages1480-1484
Number of pages5
ISBN (Print)9781604236972
Publication statusPublished - 2018
Externally publishedYes
EventSociety of Exploration Geophysicists International Exposition and 76tth Annual Meeting 2006, SEG 2006 - New Orleans, United States
Duration: Oct 1 2006Oct 6 2006

Publication series

NameSociety of Exploration Geophysicists - SEG International Exposition and 76tth Annual Meeting 2006, SEG 2006

Other

OtherSociety of Exploration Geophysicists International Exposition and 76tth Annual Meeting 2006, SEG 2006
Country/TerritoryUnited States
CityNew Orleans
Period10/1/0610/6/06

All Science Journal Classification (ASJC) codes

  • Geophysics

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