C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/20 (2006.01) C08B 37/00 (2006.01)
Patent
CA 2296741
The invention concerns guar-free fluids capable of being used in oil mining and containing de-acetylated xanthane gum in the form of a polypentamer, combined with at least one compound increasing the medium ionic strength. The invention also concerns the use, as filtrate reducer with improved properties, of de-acetylated xanthane gum, in the form of a polypentamer, combined with a compound increasing the medium ionic strength and a standard filtrate reducer.
La présente invention a trait à des fluides utilisables dans l'exploitation du pétrole, exempts de guar et comprenant de la gomme xanthane désacétylée sous la forme d'un polypentamère, en association avec au moins un composé augmentant la force ionique du milieu. Elle a de meure pour objet l'utilisation, en tant que réducteur de filtrat dont les propriétés sont améliorées, de gomme xanthane désacétylée, sous la forme d'un polypentamère, associée à un composé augmentant la force ionique du milieu et un réducteur de filtrat usuel.
Rhodia Chimie
Robic
LandOfFree
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