Method for producing viscous hydrocarbon using steam and...

E - Fixed Constructions – 21 – B

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E21B 43/24 (2006.01) E21B 36/00 (2006.01)

Patent

CA 2643285

A downhole burner is used for producing heavy-oil formations. Hydrogen, oxygen, and steam are pumped by separate conduits to the burner, which burns at least part of the hydrogen and forces the combustion products out into the earth formation. The steam cools the burner and becomes superheated steam, which is injected along with the combustion products into the earth formation. Carbon dioxide is also pumped down the well and injected into the formation.

La présente invention concerne un brûleur de fond, utilisé pour produire des formations d'huile lourde. De l'hydrogène, de l'oxygène et de la vapeur sont pompés par des conduits séparés et envoyés au brûleur, lequel brûle au moins une partie de l'hydrogène et fait sortir les produits de combustion dans la formation géologique. La vapeur refroidit le brûleur et devient de la vapeur surchauffée qui est injectée en même temps que les produits de combustion dans la formation géologique. Du dioxyde de carbone est également envoyé par pompage au fond du puits et il est injecté dans la formation.

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