CE05 - Une énergie durable, propre, sûre et efficace

Microscale modeling of fracture-matrix interactions under reactive two-phase flow – FraMatI

The fracture-matrix interactions and the aperture evolution of a single fracture will be investigated at the micro-scale by integrating Computational Fluid Dynamics simulations, X-ray high-resolution imaging, and microfluidic experiments.

We developed a coupled OpenFOAM-PHREEQC package for solving transport and geochemical reactions in a multi-scale framework. The code is available on our GitHub platform.

We miniaturized flow-through reactors to investigate geochemical reactions in microfluidic chips. Our experimental platform is coupled with Raman imaging.

Current work includes code development, microfluidic experiments, and theoretical derivations.

C. Soulaine, L. Girolami, L. Arbaret, S. Roman «Digital Rock Physics: computation of hydrodynamic dispersion« Oil & Gas Science and Technology - Rev. IFP Energies nouvelles 76, 51 (2021)

C. Soulaine, J. Maes, S. Roman «Computational Microfluidics for Geosciences« Frontiers in Water (2021), 3, 643714

F. Carrillo, I. C. Bourg, C. Soulaine «Multiphase Flow Modeling in Multiscale Porous Media: An Open-Source Micro-Continuum Approach« Journal of Computational Physics (2020), 8, 100073

J. Poonoosamy, C. Soulaine, A. Burmeister, G. Deissmann, D. Bosbach, S. Roman «Microfluidic flow-through reactor and 3D Raman imaging for in situ assessment of mineral reactivity in porous and fractured porous media« Lab-on-a-Chip (2020), 20, 2562-2571

Submission summary

Soil and rock underneath the ground surface are heterogeneous materials where fractures play an important role. Fractures are key
flow pathways that dominate fluids migration and solute transport in reservoirs. Due to geochemical reactions, they can be enlarged
or sealed, and their geometry varies depending on a number of factors including the flow regime, the fluids composition, the mass
transfer between the fracture and the matrix, and the alteration of mechanical properties. The objective of the FraMatI project is to
improve our fundamental knowledge of fractures alteration and to develop predictive capabilities of reactive multi-phase flow in
complex geological formations in order to assess the long-term effectiveness and the environmental impact of anthropogenic
subsurface activities. The scientific strategy relies on a systematic multi-scale analysis of the fracture-matrix interactions starting at
the micro-scale by means of numerical modeling and microfluidic experiments.

Project coordination

Cyprien Soulaine (Institut des sciences de la Terre d'Orléans)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


ISTO Institut des sciences de la Terre d'Orléans

Help of the ANR 219,141 euros
Beginning and duration of the scientific project: October 2019 - 48 Months

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