E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/12 (2006.01) B63B 1/02 (2006.01) B63B 35/44 (2006.01)
Patent
CA 2216478
A shallow draft floating offshore drilling/producing structure. The structure is formed from a buoyant hull on which one or more modules or decks may be placed to support process equipment, a drilling rig, utilities, and accommodations for personnel. Drilling and/or producing is accomplished through a center well in the hull. The hull includes fixed ballast, an oil storage area, and voids and variable ballast for offsetting the lighter weight of the stored oil. The hull is designed to have a relatively small water plane area. The hull is also designed to have roll and pitch periods that are detuned from waves in the area that the hull is to be installed.
Cette invention concerne une plate-forme de forage/production flottante à faible tirant d'eau. La plate-forme, formée d'un ou plusieurs modules ou tabliers portant l'équipement de procédé, un appareil de forage et les aménagements d'hébergement du personnel, repose sur un caisson flottant. Le train de tiges de forage et/ou de production passe dans un puits central du caisson flottant qui renferme du lest fixe, une zone de stockage de brut, des espaces vides et une zone de lest variable pour équilibrer le brut plus léger. Le caisson est caractérisé par une surface de flottaison relativement petite et par des périodes de roulis et de tangage différentes de la période de la houle dans le secteur d'installation.
Deep Oil Technology Incorporated
Ridout & Maybee Llp
LandOfFree
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