A Permanent Downhole Electrode Array as Valuable Tool for CO2 Monitoring at the Ketzin Pilot Site
C. Schmidt-Hattenberger, P. Bergmann, T. Labitzke and F. Wagner
Event name: Third EAGE Workshop on Permanent Reservoir Monitoring 2015
Session: PRM - Unconventionals
Publication date: 16 March 2015
Info: Extended abstract, PDF ( 6.19Mb )
Price: € 20
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.