Treatment fluids comprising clarified xanthan and associated...

E - Fixed Constructions – 21 – B

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E21B 43/25 (2006.01) C09K 8/68 (2006.01) E21B 43/26 (2006.01) E21B 37/06 (2006.01)

Patent

CA 2694151

Methods are provided that include a method comprising providing a viscosified treatment fluid comprising a base fluid and a gelling agent that comprises a clarified xanthan; and placing the viscosified treatment fluid into at least a portion of a subterranean formation. In some embodiments, the method comprises placing the viscosified treatment fluid into at least a portion of a subterranean formation at a pressure sufficient to create or enhance at least one fracture in the subterranean formation. In some embodiments, the viscosified treatment fluid may also comprise a plurality of particulates. In some embodiments, the viscosified treatment fluids may be placed into at least a portion of a pipeline. Additional methods are also provided.

L'invention porte sur des procédés qui comprennent un procédé comprenant les opérations consistant à se procurer un fluide de traitement rendu visqueux comprenant un fluide de base et un agent gélifiant qui comprend un xanthane clarifié ; et placer le fluide de traitement rendu visqueux dans au moins une partie d'une formation souterraine. Dans certains modes réalisation, le procédé comprend la mise en place du fluide de traitement rendu visqueux dans au moins une partie d'une formation souterraine à une pression suffisante pour créer ou améliorer au moins une fracture dans la formation souterraine. Dans certains modes de réalisation, le fluide de traitement rendu visqueux peut également comprendre une pluralité de particules. Dans certains modes de réalisation, les fluides de traitement rendus visqueux peuvent être placés dans au moins une partie d'un pipeline. Des procédés supplémentaires sont également décrits.

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