Patent ID: 9341024
Filing Date: 2016-05-17
CPC Classification: B63B,E21B

Claim Text:
1. A floating offshore facility for offshore hydrocarbon production, wherein the offshore facility comprises: an upper deck and a lower deck, a well bay located on the lower deck, said well bay being composed of a plurality of drilling slots and a plurality of production slots surrounding said drilling slots, each production slot being adapted to receive a production riser after a well is completed at a drilling slot neighbour of said production slot, the plurality of drilling slots forming one continuous opening inside the lower deck, a drilling riser extending from the well bay to the well, a cart supporting said drilling riser and being movable together with said drilling riser to a determined drilling slot inside the opening, and only one drilling rig located on the upper deck, said drilling rig being movable above the upper deck so as to be positioned in alignment above any one of the drilling slots and the production slots, and wherein the cart comprises a tension assembly to maintain a tension force on the drilling riser that pulls up the drilling riser to the cart, said tension assembly being movable by the cart inside the opening together with the drilling riser inside the opening, and the facility further comprises a blow out preventer device connected above the drilling riser, said blow out preventer device being movable by the cart inside the opening together with the drilling riser without disconnecting it from the drilling riser.