Articles | Volume 58
https://doi.org/10.5194/adgeo-58-1-2022
https://doi.org/10.5194/adgeo-58-1-2022
11 Oct 2022
 | 11 Oct 2022

Hysteresis in permeability evolution simulated for a sandstone by mineral precipitation and dissolution

Maria Wetzel, Thomas Kempka, and Michael Kühn

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Short summary
Porosity-permeability relations are simulated for a precipitation-dissolution cycle in a virtual sandstone. A hysteresis in permeability is observed depending on the geochemical process and dominating reaction regime, whereby permeability varies by more than two orders of magnitude. Controlling parameters for this hysteresis phenomenon are the closure and re-opening of micro-scale flow channels, derived from changes in pore throat diameter and connectivity of the pore network.