Wells – Submerged well – Riser
Reexamination Certificate
2008-01-15
2008-01-15
Beach, Thomas A (Department: 3671)
Wells
Submerged well
Riser
C166S338000, C166S360000, C166S255200
Reexamination Certificate
active
07318480
ABSTRACT:
A method performing an operation in a subsea wellhead assembly through a riser extending between the wellhead assembly and a surface platform includes the step of connecting a surface blowout preventer to an upper portion of the riser. Then a tool is connected to a string of conduit. A control line is then connected to the tool, extended alongside the conduit. The tool and control line are lowered through the blowout preventer and riser. The method also includes the step of mounting a slick joint to an upper end of the conduit when the tool is near the wellhead assembly. The control line is then linked through the slick joint and extends to the surface platform. The method also includes the step of communicating with the tool via the control line and performing an operation in the wellhead assembly with the tool.
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Christie David S.
Hosie Stanley
MacDonald Alistair
Milne Paul Findlay
Beach Thomas A
Bracewell & Giuliani LLP
Vetco Gray Inc.
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