Heating tar sands formations to visbreaking temperatures

Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat may be controlled so that at least a majority of the section reaches an average tempe...

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Bibliographische Detailangaben
Hauptverfasser: Karanikas, John Michael, Colmenares, Tulio Rafael, Zhang, Etuan, Marino, Marian, Roes, Augustinus Wilhelmus Maria, Ryan, Robert Charles, Beer, Gary Lee, Dombrowski, Robert James, Jaiswal, Namit
Format: Patent
Sprache:eng
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Zusammenfassung:Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat may be controlled so that at least a majority of the section reaches an average temperature of between 200° C. and 240° C., which results in visbreaking of at least some hydrocarbons in the section. At least some visbroken hydrocarbon fluids may be produced from the formation.