Wells – Packers or plugs – With expanding anchor
Reexamination Certificate
2007-09-10
2010-11-02
Stephenson, Daniel P (Department: 3676)
Wells
Packers or plugs
With expanding anchor
C166S387000
Reexamination Certificate
active
07823636
ABSTRACT:
A packer includes first and second external seal elements. The first external seal element is adapted to form an annular seal in the well. The second external seal element is adapted to be moved in response to fluid in the well to produce a force to at least partially assist an operation of the packer.
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Schlumberger Technology Corporation
Stephenson Daniel P
Warfford Rodney
LandOfFree
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