Hydraulic fracturing methods using cross-linking composition...

Details Hydraulic fracturing methods using cross-linking composition... Hydraulic fracturing methods using cross-linking composition...

2006-02-14

2010-06-08

Bates, Zakiya W (Department: 3676)

Wells

Processes

Placing fluid into the formation

C166S300000, C166S305100

Reexamination Certificate

active

07730952

ABSTRACT:
A method for hydraulically fracturing a subterranean formation comprises introducing into the formation a cross-linking composition which comprises a zirconium triethanolamine complex, a tetra(hydroxyalkyl)ethylenediamine, water, a cross-linkable organic polymer, and optionally, a polyol. The method can be used for cross-linking organic polymers over a wide range of pH. By varying the composition and optionally adding a delay agent, the method provides flexibility in rate of cross-linking.

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