METHOD AND APPARATUS FOR INCREASING FLOATING PLATFORM BUOYANCY

摘要

The hull (12) of a floating platform has at least one deck (14) for supporti ng drilling and/or production equipment above the surface of a body of water (16). A base node of the hull includes pontoons (18) extending radially outwardly of the hull. The platform being secured to a sea bed by anchoring tendons (20) to the pontoons (18). A column extension (22), in the form of a closed cylinder, provides a buoyancy module (32) to the lower end of the hul l (12). A mounting post (24) may be pre-installed about the periphery of the hull (12) in order to attach the buoyancy module (32) to the hull (12). Rise r hangers (33), for attaching at least one riser or flow line (34) to the colu mn extension/buoyancy module (22)/(32).