Wells – Valves – closures or changeable restrictors – Longitudinally movable operator
Reexamination Certificate
2011-08-09
2011-08-09
Stephenson, Daniel P (Department: 3676)
Wells
Valves, closures or changeable restrictors
Longitudinally movable operator
C166S380000, C166S179000, C166S130000, C166S242700
Reexamination Certificate
active
07992642
ABSTRACT:
An integral polished bore assembly for use in a wellbore. The assembly includes a barrel having a polished bore; at least one no-go member positioned within the barrel; an elongated locator member having a sealing head and an end, the end extending out of the barrel; and a radial port formed through the barrel.
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Assal Anwar
Gewily Ahmed Amr
Patel Dinesh R.
Ro Yong-Suk
Schlumberger Technology Corporation
Stephenson Daniel P
Warfford Rodney
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