Method for enhancing heavy hydrocarbon recovery

E - Fixed Constructions – 21 – B

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E21B 43/24 (2006.01) E21B 43/22 (2006.01)

Patent

CA 2713261

Amines or ammonia and amines may be used to enhance recovery of heavy hydrocarbons. The amines or ammonia and amines alone or with water, steam or an oil solvent are combined with the heavy hydrocarbons to promote the transport of the heavy hydrocarbons. The amines or ammonia and amines may be injected downhole or admixed with heavy hydrocarbon containing ore on the surface, optionally with water or steam Ammonia may be used alone with high quality steam.

Selon l'invention, des amines ou de l'ammoniac et des amines peuvent être utilisés pour améliorer la récupération d'hydrocarbures lourds. Les amines ou l'ammoniac et les amines, seuls ou avec de l'eau, de la vapeur d'eau ou un solvant du type huile, sont combinés avec les hydrocarbures lourds pour favoriser le transport des hydrocarbures lourds. Les amines ou l'ammoniac et les amines peuvent être injectés en fond de trou ou mélangés avec un minerai contenant des hydrocarbures lourds, sur la surface, éventuellement avec de l'eau ou de la vapeur d'eau. De l'ammoniac peut être utilisé seul avec une vapeur d'eau de haute qualité.

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