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Siri Knutsen converted into WSV

Earlier this year, shuttle tanker Siri Knutsen was prepared for a pilot project that she would carry out for Statoil and partners on the Snorre offshore oilfield. In fact, she was converted into a new role by Gdansk Shipyard Remontowa SA. In result of works carried out at the shipyard, Siri Knutsen has become what might be called the world's largest well stimulation vessel (WSV) so far, while retaining its shuttle tanker capabilities.

Due to this challenging task, as many as 19 various major items of equipment, mainly components of well stimulation system, have been installed onboard the ship in addition to new dedicated piping and electrical systems. The well stimulation equipment installed includes facilities for the production of fresh water, equipment for mixing and addition of chemicals and high pressure pumps.
(Look at the pictures below illustrating a view of the ship’s deck before and after conversion).

Furthermore, a new accommodation module was installed (aft of existing main accommodation block) to house the well stimulation system control room and quarters for additional crew of 18, as well as a new helideck amidships. Tunnel thruster has been replaced with retractable azimuthing unit and the engine room expanded to enhance the ship's dynamic positioning system (upgrade to DP2 class).

Knutsen NYK Offshore Tankers AS (KNOT, headquartered in Haugesund, Norway) owned and managed Siri Knutsen tonnages have changed slightly in result of the conversion due to installation of additional volume compartments and weights of new equipment.
The ship, previously described as crude oil / shuttle tanker, arrived to Remontowa SA for its recent conversion as a 2004, Naval Gijon (Spain) built, DnV classed (1A1 Taker for OIL ESP BOW, LOADING E0 DYNPOS-AUT) ship with the following principal particulars: length over all - 186.96 m, breadth - 27.40 m, depth - 16.90 m, design draft - 10.20 (moulded), deadweight - 35 181 t, gross tonnage - 24 242, speed - 15 knots, main engine - 1 × 8580 kW, MAN B&W, aux. engines - 3 × 1280 kW, MAN B&W Holeby.
It is probably noteworthy that recent Siri Knutsen conversion has been already the second similar operation on this ship carried out by Remontowa SA. The first conversion - from product and chemical tanker into a bow loading shuttle tanker - took place in 2004.

Copyright 2005 Remontowa