IHC Merwede launches Subsea 7 pipelayer
MAY 3, 2013 — IHC Merwede has today successfully launched Subsea 7's 550 t pipelaying vessel, Seven Waves, at its shipyard in Krimpen aan den IJssel, The Netherlands. The ship will be used in the develoment of Brazilian deepwater oilfieldson behalf of Petrobras.
The Seven Waves is the fifth vessel ordered by Subsea 7 from IHC Merwede's Offshore division.
IHC Offshore & Marine designed the ship in close cooperation with Subsea 7. She will have an overall length of 146 m, a beam of 30 m and a Class-2 dynamic positioning system. The vessel is equipped with a vertical (tiltable) lay system -- with 550 t top tension capacity -- and twin ROVs. She is fitted with two under-deck storage carousels, with a capacity for 2,500 t and 1,500 t of product respectively. The lay tower can operate at an angle of up to 10° and is fitted with: two tensioners, each with a 275t capacity, which can both be retracted clear of the firing line, and two wire centralizers.