Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2006-03-07
2006-03-07
Kreck, John (Department: 3673)
Wells
Processes
Cementing, plugging or consolidating
C166S294000, C166S305100
Reexamination Certificate
active
07007752
ABSTRACT:
The present invention provides a well treatment fluid for use in a well, the well treatment fluid comprising water; an amine-based polymer; an polysaccharide-based polymer; and an oxidizing agent that is capable of at least partially oxidizing at least the polysaccharide-based polymer. The present invention also provides a method of treating a subterranean formation penetrated by a wellbore, the method comprising the steps of: (a) forming a well treatment fluid comprising water; an amine-based polymer; a polysaccharide-based polymer; and an oxidizing agent that is capable of at least partially oxidizing at least a portion of the polysaccharide-based polymer; and (b) contacting the well treatment fluid with the subterranean formation. The present invention also provides a method of treating a subterranean formation penetrated by a wellbore, the method comprising the steps of: (a) forming a well treatment fluid comprising water; an amine-based polymer; and a polysaccharide-based polymer; (b) contacting the subterranean formation with the well treatment fluid; and (c) contacting the subterranean formation with an oxidizing agent that is capable of at least partially oxidizing at least a portion of the polysaccharide-based polymer in the well treatment fluid present therein.
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Dalrymple Eldon D.
Eoff Larry S.
Reddy B. Raghava
Crutsinger & Booth
Halliburton Energy Service,s Inc.
Kent Robert A.
Kreck John
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