Characterisation of Hydrocarbon Fluids for Integrated Production Modelling

Abstract

Abstract Hydrocarbon fluid characterisation plays a central role in the modelling of oil and gas processes but is still an area that is not well understood. This issue becomes all the more complicated in integrated production system models as the handling of fluid characterisation differs between software packages that model different parts of the oilfield system. Ideally a characterisation methodology that respects the physical behaviour of the fluid while being versatile enough for use by all disciplines is desired. This paper examines some key fluid characterisation issues faced by Integrated Production System Modelling teams and explains how they can be addressed viz.:- modelling the C7+ (heavy) fractionchoice of matching parameters to be used in the regressionthe number of acceptable components that can be used in the compositional model