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1. WO2012104308 - PRODUCTION UNIT HAVING A BALLASTABLE ROTATION SYMMETRIC HULL AND A MOONPOOL

Publication Number WO/2012/104308
Publication Date 09.08.2012
International Application No. PCT/EP2012/051579
International Filing Date 31.01.2012
IPC
B63B 35/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
35Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
B63B 39/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
39Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
CPC
B63B 35/4413
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
35Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
4413Floating drilling platforms, e.g. carrying water-oil separating devices
B63B 39/00
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
39Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
Applicants
  • SEVAN MARINE ASA [NO]/[NO] (AllExceptUS)
  • AARSNES, Jan Vidar [NO]/[NO] (UsOnly)
  • SKJÅSTAD, Otto [NO]/[NO] (UsOnly)
  • SYVERTSEN, Kåre [NO]/[NO] (UsOnly)
Inventors
  • AARSNES, Jan Vidar
  • SKJÅSTAD, Otto
  • SYVERTSEN, Kåre
Agents
  • ZACCO NORWAY AS
Priority Data
2011017401.02.2011NO
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PRODUCTION UNIT HAVING A BALLASTABLE ROTATION SYMMETRIC HULL AND A MOONPOOL
(FR) UNITÉ DE PRODUCTION COMPORTANT UNE COQUE BALLASTABLE SYMÉTRIQUE EN ROTATION ET UN PUITS CENTRAL
Abstract
(EN)
A floating production unit is operable for production and storage of hydrocarbons. The production unit exhibits in operation movement properties rendering connection of one or more loose hanging risers (5) of suitable material possible. Such a unit comprises a hull (1) and a deck (4) in an upper end of the hull, the deck being equipped adequately in accordance with the intended application. The floating production unit is distinguished in that the hull (1) is configured to allow suspension of the riser (5) on at least one frame (6) arranged in a shaft / moonpool (3) in a center of the hull (1) wherein vertical movements of the hull (1) are minimized, and that the moonpool (3) of the unit surrounds and protects an upper part of the one or more risers (5) and fixed tubes for transfer of fluid to a processing facility of the production unit against external forces such as waves, ice and vessel collisions, in addition to corresponding protection during connection of the one or more risers (5) unto the at least one frame (6).
(FR)
L'invention concerne une unité de production flottante destinée à la production et au stockage d'hydrocarbures. L'unité de production possède, à l'utilisation, des propriétés de déplacement qui permettent de raccorder un ou plusieurs tube(s) prolongateur(s) (5) suspendus de manière lâche, faits d'une matière adéquate. Une telle unité comprend une coque (1) et un pont (4), prévu dans une extrémité supérieure de la coque, le pont étant équipé de manière adéquate selon l'utilisation prévue. Cette unité de production flottante est caractérisée en ce que la coque (1) est conçue pour permettre de suspendre le tube prolongateur (5) sur au moins un cadre (6), placé dans un arbre/puits central (3) au centre de la coque (1), de sorte que les mouvements verticaux de la coque (1) sont réduits au minimum, et que le puits central (3) de l'unité entoure et protège une partie supérieure du ou des tube(s) prolongateur(s) (5) et de tubes fixes, servant à transférer un fluide vers une installation de traitement de l'unité de production, contre des forces extérieures telles que les vagues, la glace et des collisions avec un navire, en plus de la protection correspondante assurée pendant la liaison du ou des tube(s) prolongateur(s) (5) sur le(s) cadre(s) (6).
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