Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2007-01-02
2007-01-02
Bagnell, David (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S295000, C166S302000
Reexamination Certificate
active
10791211
ABSTRACT:
Methods are described for providing localized heating in an oil well at precise depths to accomplish or expedite specific objectives. The methods involve the use of a heating tool which can be lowered into an oil well to apply heat at a precise depth to achieve a desired result. The specific objectives may include localized heating of a fresh cement slurry to accelerate curing, or localized heating of recently emplaced chemicals which are formulated to be thermally activated. One purpose of such chemicals is to viscosify or increase in gel strength after being pumped into an oil well production zone, in order to restrict the production of unwanted formation fluids such as water.
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Becker Thomas E.
Carpenter Robert B.
Granberry Verland
Zamora Frank
Bagnell David
Bomar Shane
Halliburton Energy Service,s Inc.
Haynes and Boone L.L.P.
Roddy Craig W.
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