Carbonate rock-typing: Diagenesis and multi-scale heterogeneity

Carbonate rock typing methods aim to associate texture with petrophysically similar rocks. Here, we use 2D thin sections of carbonate reservoir rocks to create 3D statistical pore-size distributions and extract pore network models from these to obtain multiphase flow properties. This novel rocktyping method is applied to synthetic depositional rock textures which are progressively altered by a succession of typical diagenetic processes. For each stage in the paragenetic sequence, flow properties were calculated. Secondly, by comparing experimental results with our modelled predictions, we validate our methodology of pore reconstruction, network extraction, stochastic network generation and creation of multi-scale networks.