Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2007-07-31
2007-07-31
Bagnell, David (Department: 3672)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S322000, C166S277000
Reexamination Certificate
active
11324942
ABSTRACT:
A communication tool (100) includes a housing (102) having recesses (110) and a set of axial locating elements (112) radially extendable through the recesses (110) and engagably positionable within a profile of a tubing retrievable safety valve (50). An anti rotation device (140) is radially outwardly extendable relative to the housing (112). The anti rotation device (140) operably engages the tubing retrievable safety valve (50) to substantially prevent relative rotation between at least a portion of the communication tool (100) and the tubing retrievable safety valve (50). A cutting tool (148) is radially outwardly extendable relative to the housing (102). The cutting tool (148) is operable to create a fluid passageway (150) between a non annular hydraulic chamber (60) and an interior the tubing retrievable safety valve (50).
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Dennistoun Stuart M.
Gazda Imre I.
Smith Roddie Robert
Bagnell David
Halliburton Energy Service,s Inc.
Stephenson Daniel P
Youst Lawrence R.
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