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Infl uence of LNG sloshing on offl oading operations


Petronas recently commissioned MARIN to perform side-by-side model tests on Petronas FLNG 1 and a MOSS LNGC. During this project, MARIN assessed the influence of LNG sloshing in the partially filled tanks on the LNGC’s motions.


F


Frederick Jaouen f.jaouen@marin.nl


12 report


LNGs are being developed for gas production and processing in remote offshore locations. The floating


production unit is turret moored at the gas field location and ensures the gas production, storage and offloading. The offloading usually takes place in a side-by-side configuration and a loading arm permits the transfer of liquefied gas from the FLNG to the LNGC through an articulated pipe system.


The most critical issues during this operation are the loads in the side-by-side mooring lines between the two vessels, the loads in the floating fenders and the relative motions at the loading arm location. These issues are mainly determined by the environmental loads on the two vessels, which are in close proximity, and by the strong hydrodynamic interaction between the vessels. But in addition to external loads, there are also


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