Consistency check of PVT data from Lower Cretaceous chalk reservoirs
Abstract
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 Valdemar and nearby 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.