Wells – Processes – Graveling or filter forming
Reexamination Certificate
2007-05-15
2007-05-15
Suchfield, George (Department: 3676)
Wells
Processes
Graveling or filter forming
C166S300000, C507S209000, C507S211000, C507S213000, C507S215000, C507S216000, C507S269000, C507S273000, C507S277000, C507S921000, C507S922000
Reexamination Certificate
active
10983937
ABSTRACT:
Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. A method presented herein is a method of reducing the viscosity of a viscosified treatment fluid that comprises providing a viscosified treatment fluid that comprises a basic fluid and a gelling agent, providing a breaker composition comprising an oxidizing breaker and a breaker activator that comprises a reducing sugar; and allowing the breaker composition and the viscosified treatment fluid to interact so as to reduce the viscosity of the viscosified treatment fluid.
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Griffin David E.
Hanes, Jr. Robert E.
Pauls Richard W.
Baker & Botts
Halliburton Energy Service,s Inc.
Kent Robert A.
Suchfield George
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