E - Fixed Constructions – 02 – B
Patent
E - Fixed Constructions
02
B
61/9
E02B 17/00 (2006.01) E02B 17/02 (2006.01)
Patent
CA 1179514
F-1255 GRAVITY BASE OFFSHORE PRODUCTION PLATFORM ABSTRACT OF THE DISCLOSURE A gravity base offshore production platform for use in an arctic environment, includes a support section encircled and protected by an integral, annular concrete structure of a configuration providing a plurality or horizontal array of upright compartments. The support section also includes a concrete foundation resting on the marine floor and generally the compartmented structure rises above the marine surface and is covered by a concrete slab to form closed compartments within the monolithic structure. The circumference of the concrete structure incorporates a plurality of ice-deflecting nose portions which are integrally formed with the wall structure of the exteriorly located compartments of the array, and are reinforced to withstand large iceberg forces upon impact. These reinforced nose portions impart either a "scallop-like" configuration to the circumference of the structure, or when in the shape of substantially pointed wall sections, a "starpoint" form capable of resisting and absorbing the extremely high energy of large icebergs by progressively crushing the leading edge of an impacting iceberg.
415456
Gerwick Ben C. Jr.
Price Edward B.
Taylor Thomas P.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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