E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/26 (2006.01) C09K 8/60 (2006.01) C11D 3/37 (2006.01)
Patent
CA 2704177
An aqueous fluid useful for the recovery of crude oil from a subterranean formation, which includes a composition including a mixture of water, a water soluble block copolymer, an inorganic salt and at least one member of the group of a nonionic surfactant having an HLB of less than 12, and methods for using same.
Fluide aqueux convenant pour la récupération de brut dans une formation souterraine, lequel fluide comprend une composition constituée d'un mélange d'eau, d'un copolymère bloc hydrosoluble, d'un sel inorganique et d'au moins un élément du groupe de tensioactifs non ioniques avec un rapport hydrophile-lipophile (HLB) inférieur à 12, et ses méthodes d'utilisation.
Adam Herve
Castaing Jean-Christophe
Hough Lawrence Alan
Kesavan Subramanian
Lizarraga Gilda Maria
Gowling Lafleur Henderson Llp
Rhodia Inc.
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