In situ recovery from residually heated sections in a...

E - Fixed Constructions – 21 – B

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E21B 43/24 (2006.01) E21B 43/14 (2006.01) E21B 43/16 (2006.01) E21B 43/241 (2006.01)

Patent

CA 2684486

Methods of treating a tar sands formation is described herein. The methods may include providing heat to a first section of a hydrocarbon layer in the formation from a plurality of heaters located in the first section of the formation. Heat is transferred from the heaters so that at least a first section of the formation reaches a selected temperature. At least a portion of residual heat from the first section transfers from the first section to a second section of the formation. At least a portion of hydrocarbons in the second section are mobilized by providing a solvation fluid and/or a pressurizing fluid to the second section of the formation.

L'invention concerne des procédés de traitement d'une formation de sables bitumineux. Les procédés peuvent comprendre la fourniture de chaleur à une première section d'une couche d'hydrocarbures dans la formation à partir d'une pluralité de dispositifs de chauffage situés dans la première section de la formation. La chaleur est transférée à partir des dispositifs de chauffage de sorte qu'au moins une première section de la formation atteint la température sélectionnée. Au moins une partie de la chaleur résiduelle provenant de la première section est transférée depuis la première section à une seconde section de la formation. Au moins une partie des hydrocarbures de la seconde section est mobilisée en fournissant un fluide de solvatation et/ou un fluide de pressurisation à la seconde section de la formation.

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