Permeability
Permeability is one of the key parameters when talking about reservoir or caprock quality. We offer both, permeability to gas and permeability to liquid. Gas permeability measurements can be carried out with e.g. air, nitrogen or helium. Cubic and cylindrical specimens of variable size can be investigated under ambient as well as stressed conditions. Measurement of stressed permeability within a triaxial cell is in particular useful for samples from deep bore holes which tend to micro crack formation under ambient conditions due to stress release. Gas and fluid flow along these micro cracks will lead to artificially high permeabilitiy values. Measurements done under simulated in situ conditions within a triaxial cell close these micro cracks and allow for determination of the correct in situ permeability. Moreover, we provide Klinkenberg-corrected permeability values determined based on the Law of Darcy.
For specimens with permeability higher than 5*10-18 m2 we offer additional flow monitoring with highly accurate and fast-reacting volume flow meters. This can be done while continuing with deformation during triaxial stress-strain tests.
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News
With the recent acquisition of the state-of-the-art DIL 502 Expedis® Select thermal dilatometer from Netzsch, we are expanding our capabilities for the precise analysis of the thermal properties of rocks and mineral materials. We are now able to determine the coefficient of thermal expansion in accordance with DIN EN 14581:2004, ASTM D4535-13e1. (2013) or using a measurement program specifically tailored to the customer’s needs (for more information, see Thermal Dilatometer).
The project, which was funded by the Free State of Thuringia, was co-financed by the European Union through the European Regional Development Fund (EFRE).

This year’s EAGE GET Conference and Exhibition is taking place in Germany:
Gesteinslabor Dr. Eberhard Jahns will again be taking part as an exhibitor this year. From 2 to 6 November 2026, you can find us at Stand 31 at the HCC in Hannover.
We would be delighted to welcome you to our stand.

Gesteinslabor Dr. Eberhard Jahns is project and research partner within the HENRI (Hydrogen Energy Reservoir) project.
Our main focus is on determining the impact of H2 on the cap rock. Besides other parameters, we measure the capillary threshold pressure using various gases and gas mixtures of hydrogen and methane.
Results were presented at the third HENRI conference in Bratislava in September 2025
We are pleased to be part of the Dutch subsurface research for geothermal heat SCAN.
Further information can be found on the official homepage:
https://scanaardwarmte.nl/english/



