C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
31/26, 260/425.7
C07F 7/00 (2006.01) C09K 8/68 (2006.01) E21C 37/06 (2006.01) E21F 15/08 (2006.01)
Patent
CA 1277990
Title ZIRCONIUM CHELATES AND THEIR USE FOR CROSS-LINKING Abstract of the Disclosure A water-soluble zirconium chelate formed from a tetraalkyl zirconate and hydroxyethyl-tris-(hydroxy- propyl) ethylene diamine, and use of the chelate as cross-linking agents in hydraulic fracturing fluids and in gels that are used for selectively plugging permea- ble zones in subterranean formations or for plugging subterranean leaks.
558169
E.i. Du Pont de Nemours And Company
Sim & Mcburney
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