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Athabasca bitumen sits in sand near the surface. It is strip-mined, washed out with hot water, and then either upgraded on site into a synthetic crude or thinned with condensate and pipelined south. It is the clearest place where the mining industry and the oil industry are the same industry.
- 소재
- Oil Sands & Bitumen
- 유형
- Bitumen in sand, roughly 8° API, 10–12% bitumen by weight
- 출발지
- Canada — The Athabasca deposit, northern Alberta
단계별, 국경별
Canada · Athabasca, Alberta 보유자 Oil sands operators (채굴업체)
A mine, in every sense
Overburden is stripped and the oil sand is loaded by electric shovel into 400-tonne haul trucks. The ore grade is quoted in percent bitumen exactly as a copper mine quotes percent copper.
왜 이곳인가: Shallow deposits only. Where the bitumen is too deep to mine, steam is injected instead and it is produced through wells.
Canada · Extraction plant 보유자 Oil sands operators (채굴업체)
Washing the oil off the sand
The sand is slurried in hot water and agitated. Bitumen floats to the top as a froth; sand and clay sink and go to the tailings pond.
나머지는 어떻게 되었는가: About 890 tonnes of sand, clay and water per 1,000 tonnes mined goes to tailings. Managing that residue is the defining environmental question of the whole industry.
왜 이곳인가: Hot-water separation only works on mined ore, and the ore is too heavy to ship anywhere. The plant is beside the mine because it has to be.
Canada · Upgrader, or a diluent blending terminal 보유자 Operators and midstream companies (정련업체)
Upgrade here, or dilute and send it south
An upgrader cokes and hydrotreats the bitumen into synthetic crude oil of about 31° API. The alternative is to blend in roughly 30% condensate to make dilbit, which can be pipelined but arrives as somebody else's refining problem.
나머지는 어떻게 되었는가: Upgrading rejects carbon as petroleum coke — millions of tonnes of it are stockpiled in Alberta because there is no local market.
왜 이곳인가: Upgrading in Alberta keeps the conversion value in Canada; diluting exports it. The same decision the Venezuelan route faces, with the same trade-off.
United States · To the US Midwest and Gulf Coast 보유자 Pipeline operators (트레이더)
1,500 km of pipeline
Pumped south. The condensate in dilbit is separated at the refinery and railed or piped back north to be used again.
왜 이곳인가: Alberta is landlocked. Pipeline capacity, not geology, is what has capped this industry's growth for two decades.
United States · US Midwest refineries 보유자 Refiner (정련업체)
Refined into fuel
Midwest refineries were rebuilt specifically to run this heavy Canadian barrel, which is why it trades at a discount to lighter crude but has a dependable home.
왜 이곳인가: A refinery configured for heavy crude cannot easily switch to light, and vice versa. Refineries and crude grades marry each other for decades.
이것은 작업 예시이다. 공표된 출발 수량을 공표된 일반적인 수율 및 회수율에 따라 추적한 것이므로 비율은 검증 가능하다. 특정 선적 기록이 아니다. 경로 사실—어느 나라, 어떤 공정, 그리고 왜 해당 소재를 다른 곳에서 처리할 수 없는지—은 공개 보고를 바탕으로 정리되었다.