Methods of treating subterranean zones using gelled aqueous...

Details Methods of treating subterranean zones using gelled aqueous... Methods of treating subterranean zones using gelled aqueous...

2006-03-21

2006-03-21

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Material placed in pores of formation to treat resident...

C166S300000, C166S308500

Reexamination Certificate

active

07013974

ABSTRACT:
Methods of treating subterranean zones using gelled aqueous treating fluids containing environmentally benign sequestering agents are provided. The methods basically comprise the steps of preparing or providing a treating fluid comprising water containing divalent metal ions, a gelling agent, a borate crosslinking agent and an environmentally benign sequestering agent, and then introducing the treating fluid into the subterranean zone.

REFERENCES:
patent: 5226481 (1993-07-01), Le et al.
patent: 5273580 (1993-12-01), Totten et al.
patent: 6024170 (2000-02-01), McCabe et al.
patent: 6488091 (2002-12-01), Weaver et al.
patent: 2003/0144154 (2003-07-01), Dobson et al.

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