Floating offshore facility and a method for drilling a well

摘要

A floating offshore facility for offshore hydrocarbon production, comprising an upper deck, a lower deck, a well bay comprising a plurality of drilling slots and a plurality of production slots surrounding said drilling slots, a cart (20) supporting a drilling riser and being movable together with said drilling riser inside the opening of the plurality of the drilling slots, and a drilling rig movable above the well bay to drill the well through the drilling riser.

主权项

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 located between the upper and lower deck, said cart supporting said drilling riser and being movable together with said drilling riser to a determined drilling slot inside said one opening of the plurality of the drilling slots, said cart in contact simultaneously with said upper deck and the lower deck for transferring a force to said both decks, and a drilling rig located on the upper deck, said drilling rig being movable above the well bay so as to be positioned in alignment above the cart to allow to drill the well in using the drilling riser inside the determined drilling slot.