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Figure 6 | Geothermal Energy

Figure 6

From: Local stress anomaly in the Bavarian Molasse Basin

Figure 6

Comparison of the stress indicators and the modeled tangential stress. First column: Well inclination (0° to 90°) relative to the vertical (black line), well azimuth (0° to 360°)(red line). Second column: Corrected fracture density calculated in 5-m steps from 0 to 15/m and interpreted cross-fracturing in well Th1. Third column: Stress indicators (blue - drilling-induced tensile fractures, green - drilling-enhanced natural fractures, red - breakouts) and the direction of θmaxmodel (red line) and θminmodel (blue line) for an N-S-oriented strike-slip stress regime. All angles are measured in the borehole coordinate system with the θ angle (0° to 360°) relative to TOH. Fourth column: Facies interpretation with mass and bedded facies. The boxes show the mean direction of the observed (θmax and θmin) and modeled stress indicators (θmaxmodel and θminmodel) and the difference between the observed and modeled orientations (Δθ). These data indicate that an N-S-oriented strike-slip stress regime predominates in the wells Th2 and Th3 but not in well Th1.

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