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Canada · Economy & Business · Hard
What is the name of the oil sands extraction technique that uses steam injected into deep bitumen deposits to allow the heavy oil to flow to a production well?
Answer: Steam-assisted gravity drainage — Steam-assisted gravity drainage (SAGD) uses pairs of horizontal wells, with steam injected in the upper well to heat the bitumen, allowing it to drain into the lower production well.
- A Hydraulic fracturing
- B Steam-assisted gravity drainage ✓
- C Cyclic steam stimulation
- D Cold heavy oil production
Steam-assisted gravity drainage (SAGD) uses pairs of horizontal wells, with steam injected in the upper well to heat the bitumen, allowing it to drain into the lower production well.