Process to prepare borozirconate solution and use as...

Details Process to prepare borozirconate solution and use as... Process to prepare borozirconate solution and use as...

2007-12-11

2010-12-14

Kugel, Timothy J. (Department: 1796)

Earth boring, well treating, and oil field chemistry

Well treating

Contains inorganic component other than water or clay

C166S285000, C166S292000, C166S295000, C166S308500, C423S069000, C423S297000, C507S211000, C507S214000, C507S273000

Reexamination Certificate

active

07851417

ABSTRACT:
A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with alkanolamine, then glycerol and water, then with a boron compound. The solution is particularly suitable for use in a cross-linking composition in hydraulic fracturing and plugging of permeable zones of subterranean formations at temperatures of 275° F. (135° C.) and higher in the formation.

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