Methods of fracturing subterranean zones, fracturing fluids...

Details Methods of fracturing subterranean zones, fracturing fluids... Methods of fracturing subterranean zones, fracturing fluids...

2005-08-02

2005-08-02

Walker, Zakiya (Department: 3672)

Wells

Processes

Placing fluid into the formation

C166S280100, C166S307000, C507S241000, C507S256000, C507S269000, C507S921000

Reexamination Certificate

active

06923264

ABSTRACT:
A method of fracturing subterranean zones at temperature below about 200° F. wherein the fracturing fluid comprises water, a viscosity increasing gelling agent, a particulate proppant material, a delayed viscosity breaker for causing the fracturing fluid to revert to a thin fluid and a breaker activator comprising a mixture selected from the group of a mixture of cobaltous acetate and the sodium salt of ethylenediaminetetraacetic acid and a mixture of thioglycolic acid and sodium molybdate.

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patent: 5393439 (1995-02-01), Laramay et al.
patent: 6534448 (2003-03-01), Brezinski
patent: 0916806 (1999-05-01), None
patent: 0799968 (1999-08-01), None
Foreign Search Report and Opinion (International Appl. No. PCT/GB2004/000695), Feb. 23, 2004.

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