DCV Balder

1 × 3600 t ( starboard crane) 1 × 2700 t (port crane)

J- lay tower (up to 3000 m depth)

DPS class III

To Sikorsky S-61

To 3500 m depth

Lloyd 's Register of Shipping

IMO number:. 7710226

The Balder is a 1978 -built crane and working ship. The ship was built by the Japanese Mitsui Engineering & Shipbuilding Co., a company of the Mitsui Group. The ship belongs as its sister ship SSCV Hermod the Dutch company Heerema Marine Contractors (HMC ) and is mainly used for the construction of offshore structures and for laying of pipelines. The ship is also known as DCV Balder; DSV stands for Deepwater Construction Vessel (German deep-sea work boat) and Balder is in Germanic mythology, the god of light.

History and organization

The ship was originally a semi -submersible crane vessel - ( SSCV, Semi- Submersile Crane Vessel ) constructed, but in 2001 by the Dutch shipyard Verolme Botlek (now Keppel Verolme ) converted into a deep- working ship. During the reconstruction, a system for dynamic positioning (DP ) system of class III was installed. Hermod and Balder were at the time of its draft due to their construction and performance leading the way for many successor designs and revolutionized the shipbuilding for work boats.

The body of the Balder consists of two floats, which are connected to three columns to the deck structure. The draft, which is in the transfer of approximately 12 meters ( m ), is lowered during the work to around 28 m in order to reduce the influences of waves and surface currents.

The vessel has two cranes with a capacity of 3600 and 2700 tons (t) and can therefore cancel in tandem at a radius of 33.5 m up to 6300 t heavy loads. The larger of the two cranes, a load of 360 t lower to a depth of 3000 m.

It is driven by two electrically driven variable pitch propeller with a capacity of 4400 kilowatts ( kW), which are installed in a short nozzle. Seven Jet Propulsion Type LIPS FS3500-571/NU have a capacity of 3500 kW. The six beam drives the DP system are six diesel generators, each with 4000 kW (5000 kVA) driven. The power is supplied by six diesel generators, each with 2765 kW.

2001 was also the largest installation winch for mooring lines of the world (English Mooring Line Deployment Winch, Winch short MLD ), fitted with a diameter of 10.5 m. With it, the establishment of anchorages is possible up to a water depth of 3500 m. In 2002, a 98 m high J- lay tower was installed on the port side, with which it is possible to lay pipelines up to 3000 m depth.

To anchor the ship are twelve 22.5 -ton " Delta Flipper" anchor present, which are at 4500 m of steel cable with a minimum breaking strength of 386 t fixed.

The ship offered until January 2007 heated and air-conditioned cabins for 367 people. The following conversion capacity increased to 392 persons. The helicopter deck is able to accommodate helicopters up to the size of a Sikorsky S-61.

Specifications

Dimensions:

  • Deck Width: 105.5 m
  • Draught: 11.5 to 28.2 m

Cranes:

  • Crane 1: maximum capacity: 3600 t
  • Maximum lift: 116 m
  • Maximum capacity: 2700 t
  • Maximum lift height: 98 m

Other:

  • Carrying capacity of the deck: 20 tons per m2
  • Total capacity of the deck: 8,000 tons
  • Capacity of the ballast pumps: 8,000 m3 per hour
  • Dynamic ballasting: 500 t per second
  • Speed ​​: 6.5 knots at a payload of 8,000 tons on the deck and a draft of 11.5 m

Large projects and Records

  • The Balder held the depth record for the laying of pipelines. 2005 were laid at a depth of 2200 m parts of a pipeline as part of the Mardi Gras project. The pipeline was connected directly to the Thunder Horse. So you broke the record of the Saipem 7000, which had moved to the Blue Stream project, a pipeline in the Black Sea at a depth of 2150 m. The record of Balder was the Solitaire, the largest pipe fitters in the world, refracted, which displaced a pipeline at a depth of 2775 m.
  • In 2005, with the Balder the Thunder Horse, the largest moored semi -submersible oil platform in the world, installed. They also supported the erection of the platform from its inclined position, which nearly capsized by Hurricane Dennis.
  • 2007 anchored the Balder the Independence Hub facility, a distribution platform, in a record depth of 2438 m (8000 ft). In this " Suction Piles ," a special type of pile foundation, set in a record depth of 2438 m. In this project, the return line of the bore in a record depth of 2743 m (9000 ft) was installed.
Panama Home port Draft (hull) Offshore construction Baldr Port and starboard Solitaire (ship)
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