Two main topsides lifted onto Leviathan platform

Heerema Marine Contractors’ Sleipnir semisubmersible crane vessel, said to be the world’s largest, completed a 15,300-tonne lift, installing the topsides for Noble Energy’s Leviathan development in the Mediterranean Sea.

190909 Noble Leviathan Lift
Heerema Marine Contractors

Heerema Marine Contractors’ (HMC) Sleipnir semisubmersible crane vessel (SSCV), said to be the world’s largest, completed a 15,300-tonne lift, installing the topsides for Noble Energy Inc.’s Leviathan development in the Mediterranean Sea.

The lift, says HMC of Leiden, The Netherlands, sets a world record.

Discovered in 2010, Leviathan’s recoverable resources total an estimated 17.6 tcf (OGJ, Apr. 1, 2019, p. 36). Noble Energy is developing Leviathan with a subsea system and fixed offshore platform. The Leviathan system has a designed production capacity of up to 1.2 bcfd.

The Sleipnir SSCV has installed two main topsides with a total weight of 24,500 tonnes in less than 20 hr for the Leviathan development.

The Sleipnir vessel, which is LNG-powered, entered service in July 2018. Two revolving cranes on the vessel can lift as much as 20,000 tonnes in tandem.

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