Revising the Static Geological Reservoir Model of the Upper Triassic Stuttgart Formation at the Ketzin Pilot Site for CO2 Storage by Integrated Inverse Modelling

[...]quantitative indicators for diverging thickness or areal extent of the sandstone channels embedded in the fluvial floodplain facies of the reservoir formation result from the presented inverse modelling procedure. [...]a far-field facies model revision would provide limited significance for the purpose of the present study, only. [...]a more sophisticated inverse modelling approach is required to integrate the hydraulic testing phase undertaken during site characterization with the five-year period of CO 2 injection [32]. Since previous studies indicate that reservoir permeability is the parameter of highest sensitivity [12,55], pilot points were employed for calibration of the spatial reservoir permeability distribution. [...]simulated bottomhole pressures for the CO 2 injection phase exhibit an excellent agreement with minor deviations related to the isothermal approach used in the employed simulator module. Since this is in contrast to the previously addressed finding on the overestimated hydraulic connection between the Ktzi 201 and Ktzi 200 wells, the outcome of the present study strongly supports the hypothesis introduced by Chen et al.