Mineralogical Controls on Seal Capacity in the Muderong Shale, Carnarvon Basin, North West Shelf, Australia

The Muderong Shale is the major regional top seal in the northern Carnarvon Basin. This study examines the influence that mineralogy and diagenesis have on regional and local variations of seal capacity in this shale. Across the basin, capillary threshold pressures range from less than 1000 psi up to 10,000 psi.