Quality controlled PVT data from Lower Cretaceous chalk fields

PVT data are essential for proper field development plan, accurate reserve estimation, reservoir simulation, material balance calculation, and optimum oil recovery plans. High quality and accurate PVT data can therefore reduce uncertainty in fluid modelling, fluid properties measurement, and construction of thermodynamic model for representative reservoir fluid. In this work, we study the quality control of PVT measurements on collected samples from Lower Cretaceous chalk fields to select the representative reservoir fluid. An overview of different methods i.e. mass balance, cross plots and the K-values method, for verifying the consistency of PVT data is presented. Some of the reservoir fluid properties such as formation volume factor and density are modelled using an equation of state (EOS) and compared with experimental measurements from the sampling reports.