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In Canada, oil sands production in general, and in-situ extraction, ... oil sands was burnt, the global mean temperature would increase by 0.02 to 0.05 °C.
In situ refers to recovery techniques which apply heat or solvents to heavy crude oil or bitumen reservoirs beneath the Earth's crust. There are several varieties of in situ techniques, but the ones which work best in the oil sands use heat (steam).
"Roughly 35 per cent of all in situ production in the Alberta oil sands uses a technique called high pressure cyclic steam stimulation (HPCSS), which cycles between two phases: first, steam is injected into an underground oil sands deposit to fracture and heat the formation to soften the bitumen just like CSS does, excepting at even higher ...
In the oil sands, this thick, black gunk is mixed with sand and many chemical impurities such as sulfur; these must be separated from the bitumen for the oil to be useful. This can be done by surface mining and processing and by underground in situ techniques. Oil sands deposits in Alberta, Canada.
For ex situ processing, oil shale is crushed into smaller pieces, increasing surface area for better extraction. The temperature at which decomposition of oil shale occurs depends on the time-scale of the process. In ex situ retorting processes, it begins at 300 °C (570 °F) and proceeds more rapidly and completely at higher temperatures. The ...
The Athabasca oil sands, also known as the Athabasca tar sands, are large deposits of oil sands rich in bitumen, a heavy and viscous form of petroleum, in northeastern Alberta, Canada. These reserves are one of the largest sources of unconventional oil in the world, making Canada a significant player in the global energy market.
As of 2010, the output of oil sands production had reached more than 1.6 million barrels per day (250,000 m 3 /d); 53% of this was produced by surface mining and 47% by in-situ methods. The Alberta government estimates that production could reach 3.5 Mbbl/d (560,000 m 3 /d) by 2020 and possibly 5 Mbbl/d (790,000 m 3 /d) by 2030.
"Roughly 35 per cent of all in situ production in the Alberta oil sands uses a technique called High Pressure Cyclic Steam Stimulation (HPCSS), which cycles between two phases: first, steam is injected into an underground oilsands deposit to soften the bitumen; then, the resulting hot mixture of bitumen and steam (called a "bitumen emulsion ...