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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. [5] In 2004, it installed the topsides on BP's Holstein, at the time the world's largest spar. The lift was a record for the Gulf of Mexico: 7,810 t.
Named after the offshore pioneer Pieter Schelte Heerema , the father of Allseas' owner Edward Heerema, the design featured a lifting system at its bows for lifting platform topsides up to 48,000 tonnes (53,000 short tons) and a lifting system at its stern for lifting steel jackets up to 25,000 tonnes (28,000 short tons). The design also ...
The vessel is equipped with two revolving cranes built by Huisman Equipment B.V., each with a capacity of 10,000 t (11,000 short tons); the main cranes can be operated in tandem to jointly lift 20,000 t (22,000 short tons). After its completion in 2019, SSCV Sleipnir succeeded Heerema's earlier SSCV Thialf as the largest crane vessel in the world.
Allseas Group S.A. is a Dutch offshore contractor specialising in pipelay, heavy lift and subsea construction. [2] It was founded in 1985 by owner and president Edward Heerema, employs 4,000 people and operates worldwide.
The ship shaped crane vessel Challenger was equipped to lift 800 t. [2] The need for large stable crane vessels to operate in the North Sea environment lead the company to develop the first large semi-submersible crane vessels. In 1978, HMC commissioned Mitsui to construct the two sister semi-submersible crane vessels, DCV Balder and SSCV ...
In 1984, the lifting capacities were upgraded to 5,000 and 4,000 short tons (4,500 and 3,600 t) respectively. [1] The main hoist could lift 92 m (302 ft) above the work deck. The auxiliary hoists could lower to a depth of 3,000 metres (9,800 ft) below the work deck.
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Edward Heerema (born 1947 [1]) is a Dutch engineer, businessman and he was the sole owner of Allseas, a major offshore oil business company. The company is now run by his son Pieter. [ 2 ] Through Allseas, he was the owner of the largest ship in the world, the pipe-layer Pioneering Spirit .