C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 7/00 (2006.01) C09K 8/512 (2006.01) C09K 8/60 (2006.01) C09K 8/68 (2006.01)
Patent
CA 2678783
A cross-linking composition which comprises (a) an aqueous liquid, (b) a cross-linkable organic polymer, and (c) a solution comprising a zirconium cross-linking agent which comprises a zirconium complex having a molar ratio of 1:2 to 1:4 of zirconium to triethanolamine and a molar ratio of 1:0.1 to 1:1 of zirconium to N,N,N,N -tetrakis-(2-hydroxypropyl)-ethylene diamine. The composition can be used in oil field applications for hydraulic fracturing and plugging of permeable zones and leaks in subterranean formations.
La présente invention concerne une composition de réticulation qui comprend (a) un liquide aqueux, (b) un polymère organique réticulable et (c) une solution d'un agent de réticulation à base de zirconium comprenant un complexe de zirconium présentant un rapport molaire zirconium sur triéthanolamine compris entre 1:2 et 1:4 et un rapport molaire zirconium sur N,N,N,N-tétrakis-(2-hydroxypropyl)-éthylène diamine compris entre 1:0,1 et 1:1. Cette composition peut être utilisée dans des applications de champ pétrolifère pour la fracturation hydraulique et l'obturation de zones perméables et de fuites dans des formations souterraines.
Deeth Williams Wall Llp
Dorf Ketal Speciality Catalyst Llc
E.i. Du Pont de Nemours And Company
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