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A Permanent Downhole Electrode Array as Valuable Tool for CO2 Monitoring at the Ketzin Pilot Site
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Third EAGE Workshop on Permanent Reservoir Monitoring 2015, Mar 2015, Volume 2015, p.1 - 5
Abstract
Summary
At the Ketzin pilot site (Germany), a multi-disciplinary monitoring concept was established in order to image CO2 injected into a saline aquifer. Within this surveillance program a behind-casing borehole electrode array was deployed as permanent reservoir monitoring (PRM) tool. During the period from 2008 until 2014, weekly geo-electrical cross-hole data were recorded. This comprehensive archive of time-lapse resistivity data forms a respectable base for CO2 saturation estimation. Moreover, the long-term evaluation of the borehole electrode array provided the evidence for its endurance under subsurface conditions, reliability and usefulness for integrative geophysical data analysis.
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