Cross-linking composition and method of use

Details Cross-linking composition and method of use Cross-linking composition and method of use

2006-02-14

2010-06-08

Seidleck, James (Department: 1796)

Earth boring, well treating, and oil field chemistry

Well treating

Contains inorganic component other than water or clay

C507S211000, C507S214000, C507S215000, C507S216000, C507S217000, C507S244000, C507S260000, C507S265000, C507S267000

Reexamination Certificate

active

07732382

ABSTRACT:
A cross-linking composition comprises (a) an aqueous liquid, (b) a pH buffer, (c) a cross-linkable organic polymer, (d) a cross-linking agent which comprises an organic titanate, an organic zirconate, or combinations thereof, and (e) a delay agent which is a hydroxyalkylaminocarboxylic acid. The composition provides flexibility in rate of cross-linking and can be used over a wide range of pH. Further disclosed are methods to use the composition in oil field applications for hydraulic fracturing and plugging of permeable zones and leaks in subterranean formations.

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