Fluid Phase Behavior for Conventional and Unconventional Oil and Gas Reservoirs

Chapter Four

Tuning Equations of State

M. Mesbah¹, and A. Bahadori^{2,3     1}Sharif University of Technology, Tehran, Iran     ²Southern Cross University, Lismore, NSW, Australia     ³Australian Oil and Gas Services Pty Ltd, Lismore, NSW, Australia

Abstract

Equations of state could be used in behavior prediction, especially for mixtures containing heavy hydrocarbons. Unfortunately, the properties that are predicted by equations of state might not be accurate. This error may be raised from experimental data inputs or parameters of equations of state. Some references have suggested the procedure for tuning equations of state that results in improving prediction of the phase behavior. The properties of plus fraction such as molecular weight, critical ...