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Fig. 3 | Geothermal Energy

Fig. 3

From: Parameter identification and range restriction through sensitivity analysis for a high-temperature heat injection test

Fig. 3

Measured (green) and simulated temperature breakthrough curves for the base case (black) and smaller (light blue/dark blue) as well as larger (orange/red) values of vertical hydraulic conductivity kfv, shown for different depths and distances to the injection well. The maximum and minimum scenarios, as derived from the literature, are displayed as the solid red and solid blue lines, respectively, while the remaining sensitivity scenarios are displayed as dashed or dash-dotted lines. The data in 6.4 m and in 2.9 m distance from the injection well are from wells W2_2z_D09 and W2_ML_D04, respectively. The data in 1.2 m distance are from W2_ML_C05 in 6.5 m and 9 m depth and from W2_2z_U01 in 13.5 m depth, due to temperature sensor failure. Temperature as well as time axis are rescaled for the right-hand side column

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