Single Buoy Moorings Inc.

Eric Sebellin

Liva Christian Randrianarivony

Pieter Liem

Florian Couget

Offshore deployment device for an installation vessel () with a deck () to deploy a hydrocarbon transfer pipe () composed of several pipe segments (), the device including a trolley hoist lifting element (), installed in a tower () to lift a pipe segment from an horizontal position into a vertical position, an assembly platform (), where a segment is connected to a previously launched transfer pipe string, the assembly platform being provided with a clamping device that is supported on the installation vessel and adapted to support the weight of the previously launched pipe string during assembling, wherein the hydrocarbon transfer pipe is a flexible hose string composed of several flexible hose segments, the flexible hose string being guided from a vertical position into an inclined or a horizontal position via a hose string guide element () which is placed under the assembly platform.

Vertical offshore flexible pipeline assembly

An installation vessel has upper and lower decks () that are vertically spaced about 3 meters apart, with most of the lower deck covered by the upper one, but with a rear portion () of the lower deck being uncovered. The upper deck is used primarily for storage, while the lower deck is the one used for installation of anchor chains, wires, ropes, etc. that pass from a winch () to a stern roller () at the rear of the lower deck, so dangerous conditions of chains, wires, ropes, etc. moving along a deck during installation are confined to the lower deck. A main crane () that lies on one side of the vessel, lies forward of the rear end of the upper deck at a location wherein the crane can reach all portions of the uncovered lower deck portion and most of the upper deck.

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Nice, France

Eric Sebellin