Wells – Above ground apparatus – With means facilitating connecting or disconnecting...
Reexamination Certificate
2007-05-15
2007-05-15
Will, Thomas B. (Department: 3671)
Wells
Above ground apparatus
With means facilitating connecting or disconnecting...
C166S338000, C166S340000, C166S344000, C166S350000, C166S351000, C166S368000, C166S377000
Reexamination Certificate
active
10737565
ABSTRACT:
An inner tubular member of a subsea wellhead assembly carries a locking member that moves between a locked and unlocked positions lands within an outer tubular member having a grooved profile in its bore. The inner tubular member joins to a portion of the conductor casing extending from a low pressure wellhead housing above the mudline of the seafloor. In the locked position, the locking member engages the grooved profile on the outer tubular member to connect the outer tubular member and inner tubular member. The inner tubular member also carries a hydraulically actuated, axially moveable locking sleeve that slidingly engages the locking member to move the locking member between the locked and unlocked positions. An ROV supplies hydraulic fluid through an ROV port to actuate the locking sleeve.
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Gariepy James A.
Nelson John Edward
Bracewell & Giuliani LLP
Buchanan Christopher
Vetco Gray Inc.
Will Thomas B.
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