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Borehole seismic monitoring of CO2 storage within a saline aquifer at Ketzin, Germany

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2011
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Conference Paper

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Abstract

The borehole seismic monitoring in the in situ laboratory for saline aquifer CO2 storage (Ketzin, Germany) comprises crosswell tomography, offset-VSP, walkaway-VSP, and single level 3D-VSP. Timelapse measurements of the crosshole tomography indicated a decreased P-wave velocity of the rock units affected by CO2 injection, the walkaway-VSP observed increased reflectivity from the sandstone layers of the formation. The offset-VSP and 3D-VSP provide structural geometry and characterization in the vicinity of the site. A particular challenge will be the time-lapse processing of surface-to-borehole data.

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Götz, J. and Giese, R. and Lüth, S. and Schmidt-Hattenberger, C. and Juhlin, C. and Cosma, C. 2011. Borehole seismic monitoring of CO2 storage within a saline aquifer at Ketzin, Germany, in Proceedings of the 2011 Borehole Geophysics Workshop: Emphasis on 3D VSP, Jan 16-20 2011. Istanbul: European Association of Geoscientists and Engineers.
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Borehole Geophysics Workshop: Emphasis on 3D VSP
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Department of Exploration Geophysics
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