Oil sands contain a mixture of sand, water, clay and bitumen, an extra-heavy oil that is too thick to be pumped without first being diluted or heated.
Massive trucks haul bitumen-bearing ore for processing at the Muskeg River Mine, part of Chevron's Athabasca Oil Sands Project in Alberta, Canada.
What Chevron Is Doing
Effectively retrieving oil from sand is a tough challenge. Chevron is using its vast resources of technology and expertise to bring this energy source to market.At the Athabasca Oil Sands Project's Muskeg River Mine in Alberta, Canada, giant shovels capable of scooping nearly 100 tons of bitumen-bearing oil sands in one bite make the job easier. Workers at mine sites need to extract more than two tons of oil sands to produce one barrel—42 gallons—of usable crude. Chevron holds a 20 percent interest in the project.
In order to extract the bitumen from the oil sands, the ore is mixed with warm water to create a slurry. This slurry is fed into a processing unit where the bitumen is separated from the water and sand mixture. The extracted bitumen is diluted with a special solvent and then sent via pipeline to an upgrading facility near Edmonton. There, it is transformed into a wide range of premium low-sulfur and low-viscosity synthetic crude oils.
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