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Fig. 3 | Geothermal Energy

Fig. 3

From: Pre-drilling assessments of average porosity and permeability in the geothermal reservoirs of the Danish area

Fig. 3

Porosity–permeability plot, including a comparison between permeabilities derived from cores and well test data. Both unprocessed and averaged core permeability measurements are shown along with a reservoir permeability value linked to a production test conducted in the Stenlille-19 well (for location, see Fig. 1). The average core permeability (gas permeability) is about 4300 mD, whereas the well test permeability (liquid permeability) is about 6300 mD. Data originate from an excellent sandstone reservoir in the lower part of the Gassum formation (zone 6)

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