Floating structure comprising a water intake riser bundle, method of producing a liquefied hydrocarbon stream and method producing a vaporous hydrocarbon stream

摘要

A floating structure arranged in a body of water, comprising a floating body and a water intake riser bundle suspended from the floating body. The water intake riser bundle comprising a steel riser tube attached to the floating body by a hang-off section at a proximal end of the riser tube and a water intake section at a distal end of the riser tube, whereby the water intake riser bundle extends over a length L between the hang-off section and an apex of the water intake riser bundle. The length L is greater than a reference length L0, whereby L0 uniquely corresponds to a fatigue life indicator having a minimum fatigue life value.