Reservoir Characterization and Modeling: Winnipegosis Formation, Temple Field, Williston Basin, North Dakota

The Winnipegosis Formation of Temple Field represents the most prolific production from the formation in North Dakota in a platform margin environment.;Temple Field production is from a combination of structural and stratigraphic traps on a small anticlinal structure with an up-dip porosity pinchout, along the larger Nesson Anticline. In this study a geocellular model was constructed of the field for increased understanding of the facies and petrophysical property distributions within the field. Facies interpretations from cores were tied to well log signatures and then used to create a facies model. The facies model was then used to constrain the petrophysical property distributions. Petrophysical properties including porosity, permeability, and water saturation were then predicted within the model through geostatistical analysis. An original oil in place of 21.7 to 24.1 million barrels, was estimated from the model. This made the current recovery from the field 27-30 percent.