What Are the Oil Sands | Canada''s Oil Sands
A variety of oil recovery methods are currently used for oil sands production, and new methods are put in place as new technology is developed.. About 20% of Canada''s oil sands deposits are within 70 metres (200 feet) of the surface and can be recovered with surface mining, but most oil sands reservoirs are deeper and require drilling and production methods called "in situ," which