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Geothermal Energy

Science – Society – Technology

Fig. 16 | Geothermal Energy

Fig. 16

From: Microstructural and petrophysical properties of the Permo-Triassic sandstones (Buntsandstein) from the Soultz-sous-Forêts geothermal site (France)

Fig. 16

The ratio of P-wave velocity measured parallel to bedding and P-wave velocity measured perpendicular to bedding as a function of connected porosity (a) and clay content (b) for dry and wet sandstones sampled from exploration well EPS-1 at Soultz-sous-Forêts (Alsace, France). The ratio of wet P-wave velocity and dry P-wave velocity as a function of connected porosity (c) and clay content (d) for sandstones sampled from exploration well EPS-1 at Soultz-sous-Forêts cored either perpendicular (perp) or parallel (para) to bedding. n refers to the number of data points (each of which represents an average)

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