Norway trio examine safety of offshore gangway operations

Offshore staff

KONGSBERG, Norway – A consortium of Kongsberg Maritime, Norwegian shipping company Østensjo, and the Norwegian Marine Technology Research Institute (Marintek) is investigating use of motion-compensated and telescopic gangways, typically employed on offshore accommodation vessels.

The study is part of the Norwegian government’s innovation program MAROFF (Maritime Activities and Offshore Operations).

Weather conditions in particular can impact access. Although gangways remove the need for use of risky ladders, the distance between the vessel and structure must remain within the operational limit of the telescope on the gangway.

Positioning equipment ensures the vessel and structure stay within operational limits, but gangway connection and disconnection operations are rarely performed. Crew training for these tasks is essential, Kongsberg Maritime says, to limit the risk to personnel and avoid structural damage.

The project will employ Kongsberg Maritime’s dynamic positioning (DP) controller for operation of Østensjo’s new accommodation vessel Edda Fortis, compiling and analyzing operational data and undertaking simulation studies using the SIMO simulation tool package and Kongsberg Maritime’s DP algorithms.

In addition, Kongsberg Maritime will develop a simulation software system for crew training on critical tasks, incidents, and preparation of planned operations.

Sensor data will be interfaced to the DP system to simulate the compensation of motion between the rig and the accommodation vessel, with the results from the data used to adjust the DP control strategy, with a view to extending the window defined for gangway operation.




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