Pore scale modelling of calcite cement dissolution in a reservoir sandstone matrix
| Autor: | Hinz Christian, Enzmann Frieder, Kersten Michael |
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| Jazyk: | English<br />French |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | E3S Web of Conferences, Vol 98, p 05010 (2019) |
| Druh dokumentu: | article |
| ISSN: | 2267-1242 20199805 |
| DOI: | 10.1051/e3sconf/20199805010 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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