ABSTRACT
If the initial fluid characterization fails to give the desired match of measured PVT data, the compositional analysis and the PVT data should be critically checked. An inaccurate plus molecular weight is a common source of error. Regression to measured PVT data as described in Chapter 9 is an option, if major deviations between measured and simulated PVT data persist after a critical evaluation analysis of compositional data and PVT data. It is described in Chapter 2 how to quality check (QC) a compositional analysis.
