Reservoir quality of Rotliegend sandstones is mainly controlled by their permeability and
porosity and their mechanical properties. Thus diagenetic porosity-reducing processes need to
be understood to evaluate reservoir quality and geotechnical properties in sandstones. Best
reservoir qualities are achieved in mature sandstones with large amounts of quartz cementation.
The relative length of grain-contacts compared to the respective grain diameter is identified
as proxy for rock strength.