Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2007-05-31
2009-11-24
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S283000, C166S300000, C166S308300
Reexamination Certificate
active
07621335
ABSTRACT:
A well treating fluid useful in slickwater fracturing processes contains polyacrylamide friction reducer and a viscosity breaker capable of reducing the viscosity of the well treating fluid to about the viscosity of water at ambient temperatures of typical underground formations. The viscosity breaker is selected from the group consisting of hydrogen peroxide, calcium peroxide, magnesium peroxide, and zinc peroxide and is present in an amount above about 0.002% by weight.
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Dyer Richard J.
Valeriano Oscar L.
Bates Zakiya W.
Chemplex, Ltd.
Locke Lord Bissell & Liddell LLP
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