Oil sands
Videos
Page
Oil sands, tar sands, crude bitumen, or bituminous sands, are a type of unconventional petroleum deposit. Oil sands are either loose sands or partially consolidated sandstone containing a naturally occurring mixture of sand, clay, and water, soaked with bitumen, a dense and extremely viscous form of petroleum.
Tar sandstone from California, United States
The City of Fort McMurray on the banks of the Athabasca River
Cold Lake viewed from Meadow Lake Provincial Park, Saskatchewan
Panorama of the Orinoco River
Unconventional (oil and gas) reservoir
Videos
Page
Unconventional reservoirs, or unconventional resources are accumulations where oil and gas phases are tightly bound to the rock fabric by strong capillary forces, requiring specialised measures for evaluation and extraction.
Schematic cross-section of general types of oil and gas resources featuring unconventional as well as conventional reservoirs