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Deep-Water Platform Solutions for the Navarin Basin

by F. S. Wang, Conoco Inc, Conoco Inc,
J. C. Bruce, Conoco Inc, Conoco Inc,
M. F. Erbatur, Conoco Inc, Conoco Inc,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore

Abstract:

The environmental conditions prevailing in the Navarin Basin may impose limitations on the type and shape of production, storage and loading structures. The magnitude of the wind and wave loads approach levels similar to other exposed areas such as the North Sea, but the ice adds significantly to the loads if the force levels are not restricted. This, combined with complications presented by weak soil conditions throughout the general area, represents a unique problem. The conceptual development of a jacket type structure and a steel production platform with integrated storage which represents a somewhat unique solution, blending artic technology and more traditional offshore technology is outlined. In the production storage structure, an ice resisting cone section is used over a relatively standard 'jacket' arrangement to reduce ice loading to manageable levels. Storage is provided in an array of subsea 'bottles' and global stability provided by piling around the base periphery.

Subject Headings: Offshore structures | Ice loads | Offshore platforms | Wind loads | Submerging | Structural stability | Steel structures | North Sea | Alaska | United States

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