Geological models are a product of integrated geosciences and reservoir  engineering studies. Such models are the essential and the only integrated static  platform for the conduct of dynamic reservoir simulation. Dynamic features of  reservoir models are based on the static characteristics of geological models.  Despite the strong impact of reservoir history matching parameters on providing  different performances of the same geological model, they cannot change the  nature of the static geological parameters. As such quality control of the geological model before starting the dynamic reservoir simulation is a must. In this course, reservoir-engineering methods are used to qualify and/ or validate different data types in geological models to start simulation of the reservoir. During the course, the applied methodologies are illustrated with case studies downloaded from rigorous reservoir studies .