This set of slides takes a very broad look at the ductile zones that are playing a huge role in horizontal drilling and hydraulic fracturing geometries today. It also opens our thought processes to zones that are controlling fluid migration and entrapment of buoyant fluids. This
set of slides walks through the ductile (we prefer the visco-plastic term) formations of clay-rich shales and evaporites and why they are so important to identify and characterize.