| Issue |
E3S Web Conf.
Volume 98, 2019
16th International Symposium on Water-Rock Interaction (WRI-16) and 13th International Symposium on Applied Isotope Geochemistry (1st IAGC International Conference)
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|
|---|---|---|
| Article Number | 05010 | |
| Number of page(s) | 5 | |
| Section | Modeling of Hydrogeochemical and Ore Formation Processes | |
| DOI | https://doi.org/10.1051/e3sconf/20199805010 | |
| Published online | 07 June 2019 | |
Pore scale modelling of calcite cement dissolution in a reservoir sandstone matrix
1
Geosciences Institute, Johannes Gutenberg-University, 55099 Mainz, Germany
2
Math2Market GmbH, 67655 Kaiserslautern, Germany
* Corresponding author: kersten@uni-mainz.de
Long-term evolution of permeability and tortuosity due to porosity changes evoked by reactivity of aqueous solutions is of paramount importance for predicting water-rock interaction. This challenge is best tackled by introducing reactive transport modelling on the pore-scale, where the modeling domain is a high-resolution tomographic image of the porous media. We suggest to use a voxel based Navier-Stokes-Brinkman solver in a finite volume formulation coupled to the thermodynamic equilibrium code PhreeqC. High-performance parallelized computations using this coupled numerical reactive transport solver are performed directly on the voxel grid of the segmented micro-CT scans. Retreat of the calcite cement in a sandstone matrix due to dissolution reactions can be directly visualized by digital rock physics experiments.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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