Porosity
Porosity is an important parameter for the storage capacity of a reservoir rock, may it be in terms of its potential as a hydrocarbon source or for gas storage.
We offer two porosity measurement methods to choose from: Hg porosimetry or gas porosimetry (applying helium, nitrogen, argon or air); measurements with water as wetting fluid are also possible.
For gas porosimetry, Gesteinslabor applies a gas pycnometer (Micromeretics AccuPyc II 1340; in particular suitable for measurements with He) that is optimised for measurements on cylindrical or cube-shaped specimens based on the general gas law: The specimen is inserted into a tight-fitting and gas-tight cylinder. The very small system volume is adjusted by amounts at will. From the compressed gas volume within the specimen the interconnected pore space can be determined very accurately.
Advantages of gas/water porosimetry compared to Hg porosimetry:
- specimens are reusable for subsequent investigations
- fast measurements
- cost-efficient
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/
