C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/68 (2006.01) C09K 8/524 (2006.01) C09K 8/70 (2006.01) E21B 43/26 (2006.01)
Patent
CA 2526673
Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. The viscosity of a treating fluid containing gelling agents is broken, even at temperatures of about 250~F and lower, utilizing an oxidizing breaker and a reducing sugar to activate the breaker.
L'invention concerne des procédés améliorés permettant de traiter et de fractionner des formations souterraines, ainsi que les compositions de fluides utilisées. Ce procédé permet de réduire la viscosité d'un fluide de traitement contenant des agents gélifiants, même à des températures égale ou inférieures à 250·F environ, au moyen d'un viscoréducteur oxydant et d'un sucre réducteur servant à l'activation du viscoréducteur.
Griffin David E.
Hanes Robert E. Jr.
Pauls Richard W.
Halliburton Energy Services Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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