Changes in geophysical observables caused by CO2 injection into saline aquifers

To appraise the utility of geophysical techniques for monitoring CO2 injected into saline aquifers, we carried out numerical simulations based on an aquifer system underlying a portion of Tokyo Bay and calculated the temporal changes in geophysical observables caused by changing underground conditio...

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Bibliographic Details
Published inEnergy procedia Vol. 4; pp. 3276 - 3283
Main Authors Ishido, Tsuneo, Tosha, Toshiyuki, Akasaka, Chitoshi, Nishi, Yuji, Sugihara, Mituhiko, Kano, Yuki, Nakanishi, Shigetaka
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2011
Subjects
Geophysical monitoring techniques
Modeling tools
Saline aquifers
Trapping mechanism
Trapping mechanism
Modeling tools
Geophysical monitoring techniques
Saline aquifers
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Summary:To appraise the utility of geophysical techniques for monitoring CO2 injected into saline aquifers, we carried out numerical simulations based on an aquifer system underlying a portion of Tokyo Bay and calculated the temporal changes in geophysical observables caused by changing underground conditions as computed by the reservoir simulation. The applicability of any particular method is likely to be highly site-specific, but the present calculations indicate that none of these techniques should be ruled out altogether. In addition to seismic methods (especially reflection surveys), micro-gravity surveys appear to be suitable for characterizing long-term changes, and SP measurements are quite responsive to short-term disturbances.
ISSN:1876-6102
1876-6102
DOI:10.1016/j.egypro.2011.02.247