The MPP vessel »HHL Richards Bay«, owned by Hansa Heavy Lift (HHL), has transported two dozen reels and a range of subsea equipment for the Jangkrik Complex Project, off the coast of Indonesia.
According to the German shipping company the »HHLA Richards Bay« picked up the cargo i[ds_preview]n three different ports: Rosyth, UK; Le Trait, France and Tanjung Langsat, Malaysia.
The vessels discharged the reels and subsea equipment in Balikpapan, Indonesia onto the offshore vessel »Viking Neptun«, in five mobilisations. Two more offshore vessels, the »Seismic Supporter« and the »Deep Orient«, were used to load and offload some of the equipment from »HHL Richards Bay«.
Complex project with a careful planning
Ahead of commencing the project, the stowage plan had to be prepared in accordance with the different loading ports and a pre-defined discharge sequence to follow the offshore installation procedure, without shifting any cargo unit.
During the final move, HHL transferred 19 empty reels to the »Viking Neptun« and loaded all the subsea equipment, whilst the remaining reels and equipment were discharged in Tanjung Langsat.
The seafastening calculation was prepared taking into account the sensitivity of the cargo, the strength of the reel structure and the special requirements from the product manufacturer. Other engineering analyses performed during the planning stage included a finite element analysis to assess the strength of the vessel’s deck, as well as regular rigging, seafastening and stability calculations.
