In a 3-D seismic survey, we acquired data over an 8-mi2 section of Cut Bank field, located on the west flank of Sweetgrass Arch in Glacier County, Montana. The main objective of the study was to improve the results of an ongoing waterflood program.

Because geomorphic features can readily be mapped, our ability to characterize unsaturated flow over large areas would be greatly enhanced if relationships between geomorphic settings and unsaturated flow could be identified.

This report uses the rock fabric method to construct a reservoir model of a Permian Basin Grayburg dolomite reservoir. Rock fabrics are related to porosity, permeability, and capillary pressure and are distributed within a sequence stratigraphic framework.