Poisson's ratio
The Poisson's ratio is an elastic parameter based on the measurement of lateral expansion relative to the longitudinal contraction. For rocks, Poisson’s ratio is typically 0.15 - 0.25. For weak porous rocks can approach zero or even become negative. For fluids, Poisson's ratio is 0.5. For unconsolidated sand it approaches 0.5. 1
Dynamic Poisson's ratio
The most important method for simulation of this elastic parameter is acoustic logging, and in particular acoustic wireline logs.
Dynamic Poisson's Ratio (Anhydrite, Basalt, Chalk, Claystone, Coal, Dolomite, Halite, Limestone, Marl, Mudstone, Shale, Siltstone)
