In situ conversion of heavy hydrocarbons to catalytic gas

E - Fixed Constructions – 21 – B

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E21B 43/25 (2006.01) C09K 8/60 (2006.01) C10L 3/06 (2006.01) E21B 43/22 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2674322

A method of producing natural gas from a heavy hydrocarbon-containing subterranean formation includes: placing a catalyst having at least one transition metal into the formation, injecting an anoxic stimulation gas into the formation, and collecting the natural gas generated in the formation. The method may be performed outside the context of a subterranean formation under controlled conditions. Thus, a method of producing natural gas from bitumen includes: providing an anoxic mixture of heavy hydrocarbons and a catalyst having at least one transition metal, adding an anoxic stimulation gas to the mixture, and heating the mixture in the presence of the stimulation gas.

L'invention concerne un procédé de production de gaz naturel à partir d'une formation souterraine contenant des hydrocarbures lourds. Le procédé comprend les étapes consistant à : placer un catalyseur contenant au moins un métal de transition dans la formation, injecter un gaz de stimulation anoxique dans la formation, et recueillir le gaz naturel généré dans la formation. Le procédé selon l'invention peut être mis en AEuvre dans des conditions contrôlées, dans d'autres contextes que celui d'une formation souterraine. Ainsi, un procédé de production de gaz naturel à partir de bitume comprend les étapes consistant à : fournir un mélange anoxique formé d'hydrocarbures lourds et d'un catalyseur contenant au moins un métal de transition, ajouter un gaz de stimulation anoxique au mélange, et chauffer le mélange en présence du gaz de stimulation.

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