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My research is focused on understanding the effect of structural heterogeneities in sandstone, such as deformation bands, on multiphase fluid flow.
Deformation bands are strain localization features occurring in highly porous rocks. Since it is common that porous sandstones in aquifers are affected by tectonic events, we can expect that deformation bands will be present in the potential storage site. I am going to consider cataclastic (rolling and crushing of the grains) and pressure solution deformation bands (dissolution and cementation). In both cases, there is a significant porosity and permeability reduction relative to the surrounding rocks.
In relation to the type, thickness, orientation of the deformation bands, and direction of the injected flow, deformation bands can act as barriers to flow and this may affect injectivity, migration, and storage of CO2.

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Early Career Researcher