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  • GFZ - German Research Centre for Geosciences

    FLECAS-HT is a unique flow-through system enabling the simultaneous measurement of permeability and electrical resistivity (co-axial 4-electrode arrangement) on rock cylinders with a diameter of 30 mm and a length of 75 mm at temperatures of up to 500 °C. Currently, FLECAS-HT can be operated at a maximum confining Ar-gas pressure of 40 MPa, and a pore fluid pressure of 25 MPa. Due to the corrosive nature of high enthalpy aqueous fluids, the sample must be encapsulated with a gold tube.