Borehole seismic monitoring of CO2 storage within a saline aquifer at Ketzin, Germany
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Authors
Götz, J.
Giese, R.
Lüth, S.
Schmidt-Hattenberger, C.
Juhlin, Christopher
Cosma, C.
Date
2011Type
Conference Paper
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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.
Source Title
Borehole Geophysics Workshop: Emphasis on 3D VSP
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School
Department of Exploration Geophysics
Collection
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.