Sscv sleipnir install#
The dual cranes provide for heavy lifting capacity, both to install and remove jackets and topsides. HMC’s new-generation semi-submersible crane vessel Sleipnir is equipped with two cranes of 10,000 metric tonnes lifting capacity each and a reinforced deck area of 220 meters in length and 102 meters in width, which makes it the largest crane vessel in the world.
The Aegir is a monohull crane vessel with a large open deck space. The company owns four of the world’s largest crane vessels: semi-submersible crane vessels (SSCV) Sleipnir, Thialf and Balder, and mono hull crane vessel Aegir. Headquartered in Leiden, HMC’s services encompass engineering, planning, logistics, project management and execution of projects all over the world. HMC manages the entire supply chain of offshore construction, from design to completion. This includes fixed and floating structures in shallow waters, deep and ultra-deep waters. HMC excels at transporting, installing and removing offshore facilities. 2017-2018: The Thialf was involved in the installation of the platform sections of the Johan Sverdrup Complex-part of the development of the Johan Sverdrup oil field.Heerema Marine Contractors (HMC) is a world leading marine contractor in the offshore oil & gas industry.In 2009 the ship became involved in the Alpha Ventus project, the first German offshore windfarm.In 2005 it installed the heaviest single piece foundation piles: 2.74 meters diameter x 190 meters long, weighing 818 t each for Chevron's Benguela Belize compliant tower.The current record for Gulf of Mexico is now held by the Saipem 7000 with the 9,521 t of PEMEX PB-KU-A2 deck installed in March 2007. The lift was a record for the Gulf of Mexico: 7,810 t. In 2004 it installed the topsides on BP's Holstein, at the time the world's largest spar.In 2000 it set a world record of 11,883 t by lifting Shell's Shearwater topsides, beaten by Saipem 7000 in 2004 with the Sabratha deck lifting of 12,150 t.Decommissioning of the Brent Spar in 1998.Installing the pylon of the Erasmus Bridge in 1995.This way the pontoons (with a draught of 13.6 metres) are well submerged to reduce the effect of waves and swell. For lifting operations it will normally be ballasted down to 26.6 m (87 ft). The hull consists of two pontoons with four columns each. For shallow waters there are 12 Flipper Delta anchors, 22.5 t, with 2,500 meter, 80 mm mooring wire. Propulsion and position keeping is by six 5,500 kW retractable azimuthing thrusters. It is equipped with a class III dynamic positioning system. The Thialf has two cranes with a combined maximum lifting capacity of 14,200 metric tons. In 1997, it was taken over by Heerema Marine Contractors after discontinuation of their joint venture with McDermott, HeereMac, and renamed Thialf. The ship was constructed in 1985 as DB-102 for McDermott International by Mitsui Engineering & Shipbuilding Co., Ltd. The SSCV Thialf is a huge semi-submersible crane vessel operated by Heerema Marine Contractors, and it was the largest crane vessel in the world until the SSCV Sleipnir became the largest in 2019. 6 × 5,500 kW retractable azimuthing thrusters
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