Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2007-12-04
2007-12-04
Gay, Jennifer H. (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S282000, C507S259000
Reexamination Certificate
active
11058612
ABSTRACT:
Provided are treatment fluids that comprise an aqueous base fluid, and a methyl ester sulfonate surfactant, and associated diverting methods of use. In one embodiment, the present invention provides a method of treating a subterranean formation comprising: providing a treatment fluid comprising an aqueous base fluid, and a methyl ester sulfonate surfactant; introducing the treatment fluid into a portion of a subterranean formation; and allowing the treatment fluid to divert at least a portion of a second fluid to a different portion of the subterranean formation. Also provided are methods of diverting a fluid from a portion of a subterranean formation. In some instances, the treatment fluids exhibit viscoelastic behavior which may be due, at least in part, to the association of at least a portion of the methyl ester sulfonate surfactant into a plurality of micellar structures.
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Funkhouser Gary P.
Lewis Samuel J.
Welton Thomas D.
Baker & Botts L.L.P.
Gay Jennifer H.
Halliburton Energy Service,s Inc.
Kent Robert A.
Leonard Kerry W.
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