MCSEM inversion for CO2 sequestration monitoring at a deep brine aquifer in a shallow sea

Kang, S.; Seol, S.J.; Byun, J.

doi:10.1190/segam2012-0974.1

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MCSEM inversion for CO2 sequestration monitoring at a deep brine aquifer in a shallow sea

Kang, S.;
Seol, S.J.;
Byun, J.

Citations

SCOPUS

1

초록

The feasibility of marine controlled-source Electromagnetic (mCSEM) monitoring for CO2 sequestration could be evaluated by the analysis of EM responses due to injected CO2. However, its capability for the real CO2 sequestration case should be verified by the inversion approach with reasonable monitoring scenario. In this study, we developed a 2.5D mCSEM inversion algorithm and analyzed integrated sensitivity for successful inversion. Based on the result of sensitivity analysis, 2.5D inversion is applied to horizontal CO2 injection model with reasonable a priori information of the monitoring. In addition, we exploited modified secondary (MS) field method and sharp boundary constraint in inversion to enhance the resolution of our inverse problem.

키워드

Aquifers; Geophysical prospecting; Inverse problems; Sensitivity analysis; CO2 sequestration; Controlled Source Electro-Magnetic; Field methods; Injection model; Inversion algorithm; Priori information; Shallow sea; Sharp boundaries; Carbon dioxide

제목: MCSEM inversion for CO2 sequestration monitoring at a deep brine aquifer in a shallow sea

저자: Kang, S.; Seol, S.J.; Byun, J.

DOI: 10.1190/segam2012-0974.1

발행일: 2012-11

유형: Conference Paper

저널명: Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012

페이지: 768 ~ 772