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Sedimentology, petrology, and geotechnical properties of Athabasca oil sands, Alberta

Conference · · Am. Assoc. Pet. Geol. Soc. Econ. Paleontol. Mineral., Annu. Meet. Abstr.; (United States)
OSTI ID:6342265
The Athabasca oil sands deposit is not only one of the largest petroleum reservoirs in the world (870 billion bbl of oil in place), it is virtually the only supergiant oil accumulation that can be examined at outcrop. Sedimentologic and petrographic knowledge, gleaned both from the outcrop and from many subsurface cores, has direct and immediate implication for surface mining and in situ reservoir engineering. Most of the Athabasca reserves are contained in the lower Cretaceous McMurray formation, a 40- to 100-m-thick sequence of uncemented quartz sandstones and associated shales, saturated with heavy oil in virtually all zones where there is significant primary porosity and permeability. Through most of the deposit region, sedimentation was dominated by fluvial and related depositional systems, culminating in the localized development of very large channels in which were deposited distinctive solitary sets of epsilon cross strata up to 25 m thick.
OSTI ID:
6342265
Report Number(s):
CONF-7904212-
Conference Information:
Journal Name: Am. Assoc. Pet. Geol. Soc. Econ. Paleontol. Mineral., Annu. Meet. Abstr.; (United States)
Country of Publication:
United States
Language:
English