Prediction of the Liquid Viscosity of Characterized Crude Oils by Use of the Generalized Walther Model

Summary A predictive but tunable model for the liquid viscosity of characterized crude oils was developed by use of the generalized Walther correlation (Walther 1931; Yarranton et al. 2013). The crude oils are each characterized into maltene pseudocomponents and a single C5-asphaltene component. The viscosity model requires two pseudocomponent parameters (A and B), two whole-oil parameters (δ1 and δ2), and binary-interaction parameters. The...