Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate
2006-05-09
2006-05-09
Neuder, William (Department: 3672)
Wells
Submerged well
Connection or disconnection of submerged members remotely...
C285S123400, C166S075140, C166S368000
Reexamination Certificate
active
07040407
ABSTRACT:
In a subsea wellhead assembly, a collet ring assembly is used with a hanger for suspending a string of conduit in a subsea wellhead assembly. The ring assembly includes a collet that extends around an outer surface of the hanger. The collet has an upper portion that rotates radially between locked and unlocked positions. The ring assembly has a protruding lower portion extending radially outward from the hanger for engaging an interior surface of the wellhead assembly, which causes the upper portion of the collet to rotate radially outward to engage the interior surface of the wellhead assembly in a locked position. The ring assembly includes a back-up ring that engages the interior of the collet, which the collet rotates around between its locked and unlocked positions.
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Jennings Charles E.
Shirani Alireza
Coy Nicole
Neuder William
Vetco Gray Inc.
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