Internal beam buoyancy system for offshore platforms

Wells – Submerged well – Riser

Reexamination Certificate

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C166S368000, C405S224300

Reexamination Certificate

active

07096957

ABSTRACT:
A buoyancy system to buoy a riser of an offshore oil platform includes buoyancy compartments coupled around an elongated internal beam. The internal beam can withstand loads between the oil platform and the buoyancy system, while the buoyancy compartments provide buoyancy. The internal beam includes an elongated stem, a plurality of webs extending radially outwardly from the stem, and a plurality of transverse flanges attached to the outer edges of the webs.

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“Riser with composite choke/kill lines ready for Gulf of Mexico trails”; Offshore, Mar. 2000.

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