Seatrade Maritime is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Heerema showcases world’s largest dual-fuel semi-submersible crane vessel

Heerema Marine Contractors and Sembcorp Marine have showcased the world’s largest semi-submersible crane vessel (SSCV), featuring dual-fuel engines and two main cranes with a combined lifting capacity of 20,000 tonnes.

Named after Norse God Odin’s eight-legged stallion, the Sleipnir is the first SSCV to be able to run on LNG and/or marine gasoil (MGO) for the installation and decommissioning of offshore structures globally.

Last Thursday, Seatrade Maritime News visited Sembmarine’s yard in Singapore and boarded the Sleipnir to take a look at the newly completed vessel which is expected to depart Singapore in late-June.

Built at a price of $1.5bn, Netherlands-headquartered Heerema has lined up at least eight jobs including the first in September this year for Noble’s Leviathan field in offshore Israel lifting a 15,000-tonne topside. Seven other jobs include ExxonMobil’s Jotun B, Shell’s Brent A, Total’s Tyra, Equinor’s Johan Sverdrup P2, Aibel’s P2, Marathon Oil UK’s Brae Bravo, and Fairfield Energy’s Dunlin Alpha Topsides.

Wong Weng Sun, president and ceo of Sembmarine, commented: “This vessel for us is of the highest value and highest engineering deliverables up until today. We believe that going forward, cleaner source of energy will be adopted and LNG will be the forerunner.”

Pieter Heerema, chairman of the board of Heerema Marine Contractors, said: “We believe that in five years’ time there will be a sufficient uptake in gas bunkering worldwide.”


Clockwise from top left: the 200-men capacity dining area, the buffet salad counter, the kitchen, the wide variety of food and condiments.


Clockwise from top left: a two-men cabin, heavy-duty laundry for the 400-men capacity vessel, recreational area, medical facility.


The pair of main cranes with a combined lifting capacity of 20,000 tonnes.


The control deck for the DP3 heavylift vessel.


The vessel features eight 1,000 cu m LNG tanks. It also has 12,500 cu m of storage capacity for MGO.


Pieter Heerema, chairman of the board of Heerema Marine Contractors, onboard the Sleipnir.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.