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Activities Rock Mass Permeability In-situ permeability is an important parameter for geothermal energy exploitation. While in permeable sedimentary formation permeability of the reservoir rock can be tested by simple injection or pressure fall-off tests, impermeable or HDR rock formations require testing of specific borehole sections characterized by fractures which act as hydraulic valves. In such cases double-packer tests are suitable. The near wellbore hydraulic conductivity can be derived from low pressure pulse tests, the rock mass conductivity from systematic step-rate tests, using existing type curve matching techniques. Laboratory Testing density, porosity permeability under confining pressure up to 200 MPa ultrasonic velocities according to ISRM standard 1977 uniaxial strength and deformability according to ISRM standard 1978 shear strength according to ISRM standard 1974 hydraulic tensile strength under confining pressure up to 200 MPa fracture toughness according to ISRM standard 1988 thermal conductivity by divided bar method, specific heat, thermal diffusivity.
Equipment borehole autoclave for testing logging tools up to 200 MPa/200°C (ID 150 mm, length 6 m); servo-controlled compression testing machines up to 200 tons; servo-controlled fracture toughness test apparatus for 3-point bending; divided-bar thermal conductivity test apparatus; ultrasonic velocity test system; acidization test system for corrosion testing on steel or rock samples;
(sample preparation) Software
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