Systems and processes for use in treating subsurface formations

Details Systems and processes for use in treating subsurface formations Systems and processes for use in treating subsurface formations

C - Chemistry, Metallurgy

22

C

C22C 38/30 (2006.01) B21B 23/00 (2006.01) B21B 41/00 (2006.01) C09K 8/50 (2006.01) C10L 1/10 (2006.01) C22C 30/02 (2006.01) C22C 38/48 (2006.01) C22C 38/58 (2006.01) E21B 21/00 (2006.01) E21B 29/00 (2006.01) E21B 33/03 (2006.01) E21B 33/138 (2006.01) E21B 36/00 (2006.01) E21B 36/02 (2006.01) E21B 36/04 (2006.01) E21B 41/00 (2006.01) E21B 43/14 (2006.01) E21B 43/16 (2006.01) E21B 43/22 (2006.01) E21B 43/24 (2006.01) E21B 43/241 (2006.01) E21B 43/243 (2006.01) E21B 43/30 (2006.01) E21B 43/34 (2006.01) F16L 9/

Patent

CA 2667274

Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.

L'invention décrit des procédés de traitement de formations de sable bitumineux. Les procédés de traitement de sables bitumineux consistent à chauffer une portion de la couche d'hydrocarbures présents dans la formation au moyen d'une ou plusieurs unités de chauffage situées dans ladite portion. La chaleur peut être commandée afin d'augmenter la perméabilité d'une partie au moins de la portion et de créer une zone d'injection dont la perméabilité moyenne est suffisante pour permettre l'injection d'un fluide dans la zone d'injection. Un fluide d'entraînement et/ou un fluide oxydant peuvent être ajoutés dans la zone d'injection. Une partie au moins des hydrocarbures sont récoltés de ladite portion.

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