Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2007-08-13
2009-12-08
Bagnell, David J (Department: 3672)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S318000
Reexamination Certificate
active
07628210
ABSTRACT:
Apparatuses for restricting fluid flow through a well conduit comprise a housing having a longitudinal bore and a seat disposed within the bore. The seat has a first position when the apparatus is in the run-in position and a second position when the apparatus is in the set position. A plug element support member has a retracted position when the apparatus is in the run-in position and an extended position when the apparatus is in the set position. A plug element adapted to be disposed into the bore and landed on the seat to restrict fluid flow through the bore and the well conduit is used to move the plug element support member from the retracted position to the extended position, thereby providing support to the plug member landed on the seat.
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Avant Marcus A.
Johnson Charles C
King James G.
Ruddock David B.
Bagnell David J
Baker Hughes Incorporated
Greenberg & Traurig, LLP
Hutchins Cathleen R
Matheny Anthony F.
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