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Geothermal Energy

Science – Society – Technology

Fig. 3 | Geothermal Energy

Fig. 3

From: Characterisation of the fracture- and karst-controlled geothermal reservoir below Munich from geophysical wireline and well information

Fig. 3

Electrical image log (CMI) showing examples of the differentiated a facies (massive, bedded, areas that remain uncharacterised because of bad quality); b fractures (conductive, resistive, partial conductive); c karst features (massive, vuggy porosity, karst along fractures); and d stress indicators (borehole breakouts, drilling-induced fractures)

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