Section 3.4 | Fluid Systems Modelling

Selected publications

«Numerical simulation of spatial temperature and salinity distribution in the Waiwera geothermal reservoir, New Zealand»
Sustainable management of the geothermal reservoir in Waiwera requires continuous model revisions, with recent field campaigns and geological findings, particularly a north-south trending fault, improving the model, while further investigations are needed to confirm a potential west-east oriented fault and gather additional geothermal data.

«Geologic controls on the genesis of the Arctic permafrost and sub-permafrost methane hydrate-bearing system in the Beaufort–Mackenzie Delta»
The study validates the proposed Arctic sub-permafrost gas hydrate formation mechanism at the Mallik site by developing a 3D geologic model, which successfully simulates permafrost and gas hydrate distribution, confirming the role of regional fault systems in methane migration and providing insights for future gas hydrate exploration and exploitation.

«Non-Isotropic Contraction and Expansion of Samples in Diamond Anvil Cells: Implications for Thermal Conductivity at the Core-Mantle Boundary»
The study demonstrates that in diamond anvil cell experiments, the common assumptions of isotropic contraction and expansion are invalid for various materials, as they exhibit significant thinning upon compression and decompression, highlighting the need for in situ sample geometry characterization for accurate thermal conductivity measurements at high pressure.

«Electronic, Structural, and Mechanical Properties of SiO2 Glass at High Pressure Inferred from its Refractive Index»
We present the first direct measurements of the refractive index of silica glass up to 145 GPa, revealing significant anomalies at ∼10 GPa and ∼40 GPa, which correlate with changes in Si coordination, and demonstrate that the compressibility and density of noncrystalline solids can be accurately measured in optical experiments up to at least 110 GPa.

«Potential Uranium Migration within the Geochemical Gradient of the Opalinus Clay System at the Mont Terri»
The study demonstrates that the transport properties of potential host rocks for nuclear waste disposal, such as Opalinus Clay at Mont Terri, are significantly influenced by geochemical gradients and pCO2, with uranium migration distances varying by up to 24 meters compared to homogeneous models, highlighting the importance of considering heterogeneity in these systems.


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