Patent ID: 6299383
Filing Date: 2001-10-09
Classification: B63B

Abstract:
A method for the installation of a deck on a floating offshore substructure, comprising the steps of:a. placing the deck on a floating barge such that the deck extends beyond the edges of the barge;b. providing at least two independent buoyant pontoons each formed from a main hull portion having two columns spaced apart from each other along the length of the hull and extending upwardly therefrom;c. ballasting said pontoons such that the columns thereon are below the deck;d. positioning said pontoons on both sides of the barge such that said pontoons are under the deck;e. de-ballasting said pontoons such that said pontoons support the deck independently from the barge;f. positioning said pontoons to straddle the floating offshore substructure such that the deck is above the top of the floating offshore substructure; andg. ballasting said pontoons and de-ballasting the floating offshore substructure to transfer the deck to the floating offshore substructure.