Offshore platform structure for artic waters
First Claim
1. An offshore concrete gravity platform structure for installaion on a sea bed in artic waters, said platform comprising:
- a substructure completely submerged and adapted to be supported by the sea bed when in an installed position, a superstructure extending up from the substructure, a deck supported by said superstructure, said deck being above the sea water surface, said substructure having a top, said top supporting a fender, said fender comprising a cylindrical ring-shaped body located concentrically with said superstructure, means to ballast said fender for resting said fender on said substructure, said fender to be displaced relatively to said substructure and said superstructure when impacted by large iceberg masses and thus protecting said substructure and said superstructure.
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Accused Products
Abstract
An offshore platform structure of the gravity type intended to be installed on a sea bed in artic or corresponding waters. The platform structure comprises a substructure intended to be completely submerged and supported by the sea bed when in installed position, a superstructure extending up from the substructure and up above the sea bed and a deck superstructure supported by the superstructure above the sea level. A fender is provided intended to protect the superstructure against drifting ice and icebergs, the substructure being provided with a preferably horizontal top support slab supporting the fender, the fender being movably arranged on said support slab and comprising a preferably compartmented cylindrical ring-shaped body with a large weight resting preferably freely on the substructure, intended to be arranged apart from the superstructure when in normal position.
20 Citations
13 Claims
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1. An offshore concrete gravity platform structure for installaion on a sea bed in artic waters, said platform comprising:
a substructure completely submerged and adapted to be supported by the sea bed when in an installed position, a superstructure extending up from the substructure, a deck supported by said superstructure, said deck being above the sea water surface, said substructure having a top, said top supporting a fender, said fender comprising a cylindrical ring-shaped body located concentrically with said superstructure, means to ballast said fender for resting said fender on said substructure, said fender to be displaced relatively to said substructure and said superstructure when impacted by large iceberg masses and thus protecting said substructure and said superstructure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13)
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10. An offshore structure as claimed in claim 18, wherein said fender has a frusto-conical upper end.
Specification