Abstract: A method of producing heated water from a reservoir having a hot bitumen-depleted zone adjacent to an aqueous mobile zone. The method includes generating fluid communication between the aqueous mobile zone and the hot bitumen-depleted zone. The method further includes driving water from the aqueous mobile zone through a portion of the hot bitumen-depleted zone to heat the water to produce heated water from a heated water production well.

Abstract: Described herein is a method of producing heated water from a hydrocarbon reservoir. The method includes injecting water into at least a portion of the hot bitumen-depleted zone to heat the water; and producing the heated water from a heated water production well. The method can includes generating the hot bitumen-depleted zone using steam-assisted gravity drainage, in situ combustion, steam flooding, cyclic steam stimulation, a solvent aided thermal recovery process, electric heating, electromagnetic heating, or any combination thereof.

Abstract: A process for hydrocarbon recovery from an oil sands deposit includes injecting an oxidizing gas into an oil sands reservoir through an injection well. The oxidizing gas supports in situ combustion (ISC) in the reservoir. A generally horizontal well pair is used that is in fluid communication with the injection well to recover hydrocarbons mobilized by the ISC. The well pair includes: a generally horizontal segment of a hydrocarbon production well, and a generally horizontal segment of a combustion gas production well. The generally horizontal segment of the combustion gas production well is generally parallel to and spaced vertically above the horizontal segment of the hydrocarbon production well. The segment of the oxidizing gas injection well is spaced generally above the segment of the hydrocarbon production well and generally above the segment of the combustion gas production well.