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Prediction of Viscosity at Low and High Pressures and Temperatures for Iranian Offshore Crude Oils
, M.Sc. Thesis Sharif University of Technology ; Ghotbi, Cyrus (Supervisor) ; Taghikhani, Vahid (Co-Advisor)
Abstract
In this project, combination of PC-SAFT equation of state and friction theory was used for predicting the viscosity of reservoir fluid. Parameters of PC-SAFT and f-theory are available for pure components, but they are not known for oil cuts that are complex hydrocarbon mixtures. To solve this problem, in the first step, existing optimized parameters for PC-SAFT EOS of hydrocarbon mixtures were used and then, parameters of f-theory for mixtures were optimized. To set the parameters, two approaches were studied. The first approach is to obtain a series of empirical correlations that can estimate the parameters of f-theory (in conjunction with PC-SAFT) for oil cuts in terms of their molecular...