The understanding of the fluid flow behavior in a reservoir is an essential parameter for maximum oil and gas production and a high recovery factor. This study should visualize the effect of geological structures on reservoir fluid flow. Based on real geological data from a field trip to the deep marine Ainsa Basin in Spain, a reservoir model was created. The collected data and mathematical equations were used to establish rock properties for the simulation runs. Based on the results of the runs, the difference in recovery factors and production rates between a reservoir pressure production...