Viscosified treatment fluids and associated methods of use

Details Viscosified treatment fluids and associated methods of use Viscosified treatment fluids and associated methods of use

2007-11-27

2007-11-27

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Placing fluid into the formation

C166S280100, C166S283000

Reexamination Certificate

active

11626195

ABSTRACT:
In one embodiment, provided is a method of fracturing a portion of a subterranean formation that comprises providing a viscosified treatment fluid comprising a single salt aqueous fluid having a density of greater than 9 pounds per gallon and a crosslinked viscosifying agent, and contacting the portion of the subterranean formation with a viscosified treatment fluid so as to create or enhance one or more fractures therein, wherein the viscosified treatment fluid is introduced into a well bore that penetrates the portion of the subterranean formation to be fractured at a surface pressure of less than about 25,000 pounds per square inch. In other embodiments, provided are methods of frac packing a subterranean formation and methods of reducing a surface pressure needed to create one or more fractures in a portion of a subterranean formation.

REFERENCES:
patent: 5785747 (1998-07-01), Vollmer et al.
patent: 2005/0261138 (2005-11-01), Robb et al.
patent: 2006/0014648 (2006-01-01), Milson et al.

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