Mineral precipitation and geometry alteration in porous structures: How to upscale variations in permeability-porosity relationship?

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1021/acs.energyfuels.4c01432. This is version 2 of this Preprint.

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Authors

Mohammad Masoudi, Mohammad Nooraiepour , Hang Deng, Helge Hellevang

Abstract

Porous materials in natural and engineered environments are subject to morphological changes resulting from interacting chemical and physical processes. The complexity of coupled flow, transport, and chemical processes that occur on different temporal and spatial scales makes it difficult to predict the resulting porosity and permeability alterations. Delineating the controls of mineral precipitation reactions is particularly challenging because it requires the implementation of nucleation criteria and precipitation attributes. By conducting pore-scale simulations, we studied how the amount and stochastic distribution of crystallites, controlled by nucleation, affect the pore geometry and permeability in two-dimensional porous structures. The observed relationships between porosity and permeability show characteristics that differ from ones that are typically applicable in dissolving porous media because of the clogging effect. Additionally, we propose a stochastic framework that upscales the co-evolution of permeability and porosity across length scales. This framework enables precise communication of clogging behavior to continuum-scale simulations based on statistical probability distributions of permeability-porosity variations.

DOI

https://doi.org/10.31223/X56Q41

Subjects

Earth Sciences, Engineering, Environmental Sciences, Physical Sciences and Mathematics

Keywords

upscaling, Probabilistic nucleation, Mineral precipitation, Geometry evolution, Permeability-Porosity, reactive transport, porous media

Dates

Published: 2024-01-10 23:41

Last Updated: 2024-05-21 06:16

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License

CC-BY Attribution-NonCommercial-ShareAlike 4.0 International

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Conflict of interest statement:
None