Micromechanics Digital Rock: Parameterization of Consolidation Level using a Grain Contact Model

The mechanical behaviour of sedimentary rocks is conditioned by the interactions at grain-grain contacts. We present a micromechanics digital rock workflow based on cohesive contact model and introduce general parameterization that can capture two extreme behaviours: free grains fixed grains, as well any intermediate degree grain consolidation. With this parametric model, we simulate wide range rocks, from unconsolidated to well-consolidated rocks. benchmark study several samples compare with laboratory-measured elastic moduli calibrate its Simulations do not include modelling, tend overestimate moduli, which manifests significance contribution behaviour. To demonstrate impact properly capturing consolidation strength failure pattern, results for numerical uniaxial compression testing. This provides physics-based solution complex behaviour, complements laboratory core analysis, be useful reveal underlying grain-scale processes governing