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On March 22, the semi-submersible crane vessel (SSCV) Sleipnir of the Heerema Marine Contractors, the first of its kind in the world to be powered by LNG, arrived for the first time in the port of Rotterdam after being towed by the tug Kolga in the Caland Canal.
Completed in July 2019 at the Singapore shipyard of Sembcorp Marine Ltd., the Sleipnir (mythological name of the Odin’s eight-legged stallion) vessel is 220 meters long and 102 wide and with a tonnage of 119,000 tons is able to accommodate 400 people between crew and other workers.
In addition to being the largest construction ship in the world with two big cranes capable of lifting 10,000 tons each and at a 135-metre height, it is the first crane vessel to have been equipped with dual-fuel engines running on both liquefied natural gas (LNG) and low sulphur marine gas oil (MGO), drastically reducing harmful emissions.
Before her arrival in Rotterdam, from where it will soon move to carry out work in the North Sea (area subject to ECA emission restrictions), Sleipnir has already been able to carry out its first works related to the installation of oil platforms located both in the Sea Mediterranean (Leviathan platform in Israeli waters) and in the Atlantic offshore (Peregrino C platform for Equinor, in Brazilian waters) and in Trinidad.
In compliance with the requirements of the International Maritime Organization - IMO Tier III, the vessel has a power of 96 megawatts (MW), consisting of 12 dual fuel MAN 8L51/60DF engines of 8 MW each, distributed in four engine rooms. Furthermore the vessel can carry about 8,000 m3 of LNG in an IMO Type-C LNG fuel tank which provides high autonomy.
According to Heerema management, Sleipnir’s innovative environmental qualities will place the vessel at the forefront of the next developments in the offshore oil, gas and wind energy industry for both installations and decommissioning.
Source: Heerema Marine Contractors (HMC)
