Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2009-07-21
2011-12-20
Bagnell, David (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S376000
Reexamination Certificate
active
08079416
ABSTRACT:
A plug for insertion into a perforation in a liner or tubular. The plug comprises a base portion and one or more extendible portions. The base portion is securable to and receivable within the perforation. The base portion and the one or more extendible portions seal the perforation in the liner. The one or more extendible portions have a retracted position and an extended position such that when in their extended position the one or more extendible portions extend outwardly from the base portion and outwardly from the exterior surface of the liner. The plug including one or more shear pins retaining such extendible portions in said retracted position until sufficient force is applied to shear said shear pins.
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Bagnell David
Hall Jacob
Honigman Miller Schwartz and Cohn LLP
Reservoir Management Inc.
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