In the laboratory for fluid physics, various devices are used to determine the properties of geothermal fluids: density, viscosity, electrical conductivity, thermal conductivity, heat capacity, sonic velocity.

The Thermal Petrophysics Laboratory offers a wide range of measurement methods, primarily for determining the thermal properties of rocks and minerals. In addition, mineralogical and other petrophysical parameters can be determined. The following parameters can be measured:

• Thermal conductivity (TCS, TLS, TPS; LFA) (-150°C to 1,100°C)
• Thermal diffusivity (TCS, TLS, TPS; LFA) (-150°C to 1,100°C)
• Volumetric heat capacity
• Coefficient of thermal expansion (Dil) (RT to 1,000°C)
• …