PVT profiling is conducted to determine the physical and chemical properties of a fluid to analyze its behavior pressure and temperature changes. Simulation of the reservoir fluid behavior during all production processes, evaluation of the hydrocarbon in place at surface conditions and accordingly building a production profile associated with a development plan is our focus. A substantial plan is necessary in order to map down the properties of the fluid in association of the project execution. Using invalid PVT samples results in more uncertainty in reservoir studies  such as reservoir fluid compartmentalization, reserve estimation, reservoir simulation and surface facility design.