SSCV Thialf

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SSCV Thialf in a Norwegian fjord
Career <tr valign="top"><td>Name:</td><td>

SSCV Thialf</td></tr><tr valign="top"><td>Namesake:</td><td> Thialfi (Norse servant of Thor)[1]</td></tr><tr valign="top"><td>Operator:</td><td> Heerema Marine Contractors</td></tr><tr valign="top"><td>Builder:</td><td> Mitsui Engineering & Shipbuilding[2]</td></tr><tr valign="top"><td>Identification:</td><td> IMO number: 8757740[3]
MMSI Number: 353979000
Callsign: 3EAA4</td></tr><tr valign="top"><td>Status:</td><td> In service</td></tr>

General characteristics

<tr valign="top"><td>Class & type:</td><td> Semi-submersible crane vessel</td></tr><tr valign="top"><td>Tonnage:</td><td> 136,709 GT
41,012 NT</td></tr><tr valign="top"><td>Displacement:</td><td> 198,750 t max</td></tr><tr valign="top"><td>Length:</td><td> 201.6 m (661 ft)</td></tr><tr valign="top"><td>Beam:</td><td> 88.4 m (290 ft)</td></tr><tr valign="top"><td>Height:</td><td> 144.0 m (472.4 ft) crane</td></tr><tr valign="top"><td>Draft:</td><td> 31.6 m (104 ft) max</td></tr><tr valign="top"><td>Depth:</td><td> 49.5 m (162 ft)</td></tr><tr valign="top"><td>Propulsion:</td><td> 6 × 5,500 kW retractable azimuthing thrusters</td></tr><tr valign="top"><td>Complement:</td><td> 736 berths</td></tr>

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] 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 meters) 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. http://uglyships.wordpress.com/2010/05/14/thialf/. Retrieved 26 March 2011.
  2. ↑ "DCV Thialf". Heerema Marine Contractors. http://hmc.heerema.com/Corporate/Fleet/Thialf/tabid/378/Default.aspx. Retrieved 26 March 2011.
  3. ↑ "DCV Thialf". Marine Traffic. http://www.marinetraffic.com/ais/shipdetails.aspx?mmsi=353979000. Retrieved 26 March 2011.
  4. ↑ "American Bureau of Shipping Record, Thialf". http://absapps.eagle.org/safenet/record/record_vesseldetailsprinparticular?Classno=8503569&Accesstype=PUBLIC&ReferrerApplication=PUBLIC.[dead link]
  5. ↑ "Lloyd's Register EMEA assists world record lift for Sabratha topsides installation". http://www.lr.org/News+and+Events/News+Archive/2004/Lloyds+Register+EMEA+assists+world+record+lift+for+Sabratha+topsides+installation.htm.[dead link]
  6. ↑ "Saipem Sets New Record in Mexico". http://www.rigzone.com/news/article.asp?a_id=43601.
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External links

fr:SSCV Thialf nl:Thialf (schip) pl:SSCV Thialf ru:SSCV Thialf


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