Skip to main content

Science – Society – Technology

Geothermal Energy Cover Image

Table 5 Summary of the average dry, water-saturated (wet), and brine-saturated (brine) uniaxial compressive strength experiments performed on the six sandstones sampled from exploration well EPS-1 at the Soultz-sous-Forêts geothermal site (France)

From: The influence of hydrothermal brine on the short-term strength and elastic modulus of sandstones from exploration well EPS-1 at Soultz-sous-Forêts (France)

Sample box number Average dry UCS (MPa) Average wet UCS (MPa) Average brine UCS (MPa) Average dry elastic modulus (GPa) Average wet elastic modulus (GPa) Average brine elastic modulus (GPa)
84 146.2 90.0 94.3 26.9 21.6 24.6
100 142.7 106.8 94.2 27.8 25.5 25.0
157 103.1 75.1 90.1 29.5 24.6 28.4
198 116.5 88.8 95.1 30.9 27.5 27.9
402 90.0 60.5 63.0 20.9 18.0 19.5
540 64.4 40.9 39.4 16.4 13.7 13.2
  1. UCS uniaxial compressive strength