Preliminary Report on Whitemud Oil Field, Alberta, Canada
The Whitemud oil field of the Edmonton district is described as known to date. It produces Leduc-type high-gravity oil from the "Quartz Sand series" of the Lower Cretaceous. Structure is believed to be anticlinal with stratigraphic conditions closely controlling the position on structure of producible oil accumulations. Dips are extremely gentle and are thought to have originated from differential compaction of the Cretaceous rocks over irregularities on the eroded Devonian surface as well as differential uplift in post-depositional time. Possible ages and origins of the oil are discussed. The name, "Ellerslie member" of the Blairmore formation, is proposed to designate the sediments currently known as the Lower Cretaceous "Quartz Sand series" in the Edmonton-Leduc district. The Imperial's Whitemud well No. 3 is proposed as the type well-log, since no outcrops are definitely recognized as equivalents of this sand, due primarily to its lenticular nature.