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It is equipped with a class III [[dynamic positioning]] system. Propulsion and position keeping is by six 5,500 kW retractable azimuthing thrusters. For shallow waters there are 12 [[Flipper Delta]] anchors, 22.5 t, with 2,500 meter, 80 mm mooring wire.
It is equipped with a class III [[dynamic positioning]] system. Propulsion and position keeping is by six 5,500 kW retractable azimuthing thrusters. For shallow waters there are 12 [[Flipper Delta]] anchors, 22.5 t, with 2,500 meter, 80 mm mooring wire.


The hull consists of two pontoons with four columns each. Transit draught is about 12 meters. For lifting operations it will normally be ballasted down to {{convert|26.6|m|ft|abbr=on}}. This way the pontoons (with a draught of 13.6 meters) are well submerged to reduce the effect of waves and swell.
The hull consists of two pontoons with four columns each. Transit draught is about 12 meters. For lifting operations it will normally be ballasted down to {{convert|26.6|m|ft|abbr=on}}. This way the pontoons (with a draught of 13.6 metres) are well submerged to reduce the effect of waves and swell.


It is able to accommodate 736 people.
It is able to accommodate 736 people.

Revision as of 15:54, 10 September 2013

Warning: Display title "SSCV Thialf" overrides earlier display title "SSCV<i> Thialf</i>" (help).
SSCV Thialf in a Norwegian fjord
History
NameSSCV Thialf
NamesakeThialfi (Norse servant of Thor)[1]
OperatorHeerema Marine Contractors
BuilderMitsui Engineering & Shipbuilding[2]
Identificationlist error: <br /> list (help)
IMO number8757740[3]

MMSI Number: 353979000

Callsign: 3EAA4
StatusIn service
General characteristics
Class and typeSemi-submersible crane vessel
Tonnagelist error: <br /> list (help)
136,709 GT
41,012 NT
Displacement198,750 t max
Length201.6 m (661 ft)
Beam88.4 m (290 ft)
Height144.0 m (472.4 ft) crane
Draft31.6 m (104 ft) max
Depth49.5 m (162 ft)
Propulsion6 × 5,500 kW retractable azimuthing thrusters
Complement736 berths

SSCV Thialf is a semi-submersible crane vessel operated by Heerema Marine Contractors, the largest crane vessel in the world.

History

The ship was constructed in 1985 as DB-102 for McDermott by Mitsui Engineering & Shipbuilding Co., Ltd. In 1997, it was taken over by Heerema Marine Contractors after discontinuation of their joint venture with McDermott, HeereMac, and renamed Thialf.

Layout

Thialf has two cranes with a combined maximum lifting capacity of 14,200 metric tons, making it the largest crane vessel in the world.[4] but has lower height lifting capabilities than its competitor Saipem 7000 (which has lifting capability of 14,000 tonnes at 42 meters while the Thialf can lift 14,200 tonnes at 31.2 meters).

It is equipped with a class III dynamic positioning system. Propulsion and position keeping is by six 5,500 kW retractable azimuthing thrusters. For shallow waters there are 12 Flipper Delta anchors, 22.5 t, with 2,500 meter, 80 mm mooring wire.

The hull consists of two pontoons with four columns each. Transit draught is about 12 meters. For lifting operations it will normally be ballasted down to 26.6 m (87 ft). This way the pontoons (with a draught of 13.6 metres) are well submerged to reduce the effect of waves and swell.

It is able to accommodate 736 people.

Lightship weight is 72,484 t

Noteworthy projects

  • Installing the pylon of the Erasmus Bridge in 1995.
  • Decommissioning of the Brent Spar in 1998.
  • 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, the world's largest spar. The lift was a record for the Gulf of Mexico: 7,810 t. The actual record for Gulf of Mexico is now retained by the Saipem 7000 with the 9,521 t of PEMEX PB-KU-A2 deck installed in March 2007.[6]
  • In 2005 it installed the heaviest single piece foundation piles: 2.74 meters diameter x 190 meters long, weighing 818 t each for ChevronTexaco's Benguela Belize compliant tower.

Footnotes

  1. ^ "Thialf". Ugly Ships. Retrieved 26 March 2011.
  2. ^ "DCV Thialf". Heerema Marine Contractors. Retrieved 26 March 2011.
  3. ^ "DCV Thialf". Marine Traffic. Retrieved 26 March 2011.
  4. ^ "American Bureau of Shipping Record, Thialf".[dead link]
  5. ^ "Lloyd's Register EMEA assists world record lift for Sabratha topsides installation".[dead link]
  6. ^ "Saipem Sets New Record in Mexico".