SSCV Thialf: Difference between revisions

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Balder, Holstein and Thialf

The SSCV Thialf is a Semi-Submersible Crane Vessel. It was constructed in 1985 as DB-102 for McDermott by Mitsui. In 1997 it was taken over by Heerema after discontinuation of their joint venture with McDermott, HeereMac.

The Thialf has two cranes with a maximum lifting capacity of 14,200 metric tons. It is equipped with a class III Dynamic Positioning system for position keeping in deep waters. For position keeping, the Thialf is fitted with six 5,500 kW retractable azimuthing thrusters. For shallow waters there are 12 Flipper Delta anchors, 22.5 mT, with 2,500 meter, 80 mm mooring wire.

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

It is able to accommodate 742 persons.

Particulars

Length overall	201.6 meter
Breadth	88.4 meter
Max. draught	31.6 meter
Depth to workdeck	49.5 meter
Height crane above workdeck (at minimum radius)	144 meter
Lightship weight	72,484.3 mT
Max. displacement	198,750 mT

Remarkable projects

File:Benguela Belize piles.jpg

Thialf lifting a foundation pile for Benguela Belize

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 mT by lifting Shell's Shearwater topsides.
In 2004 it installed the topsides on BP's Holstein, the worlds largest spar. The lift was a record for the Gulf of Mexico: 7,810mT.
In 2005 it installed the heaviest single piece foundation piles: 2.74 meter diameter x 190 meter long, weighing 818 mT each for ChevronTexaco's Benguela Belize compliant tower.

External links

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@@ Line 2: / Line 2: @@
 The '''SSCV Thialf''' is a Semi-Submersible Crane Vessel. It was constructed in 1985 as [[DB-102]] for [[McDermott]] by [[Mitsui]]. In [[1997]] it was taken over by [[Heerema]] after discontinuation of their joint venture with McDermott, [[HeereMac]].
-The Thialf has two cranes with a maximum lifting capacity of 14,200 metric tons. It is equipped with a class III [[Dynamic_positioning|Dynamic Positioning]] system for position keeping in deep waters. For shallow waters there are 12 [[Flipper Delta]] anchors.
+The Thialf has two cranes with a maximum lifting capacity of 14,200 metric tons. It is equipped with a class III [[Dynamic_positioning|Dynamic Positioning]] system for position keeping in deep waters. For position keeping, the Thialf is fitted with six 5,500 kW retractable azimuthing thrusters. For shallow waters there are 12 [[Flipper Delta]] anchors, 22.5 mT, with 2,500 meter, 80 mm mooring wire.
-The hull consists of two floaters with four columns each. Transit draught is ± 11 meter. For lifting operations it will normally be ballasted down to 26.6 meters. This way the floaters (with a draught of 13.6 meters) are well submerged to reduce the effect of waves and swell.
+The hull consists of two floaters with four columns each. Transit draught is ± 12 meter. For lifting operations it will normally be ballasted down to 26.6 meters. This way the floaters (with a draught of 13.6 meters) are well submerged to reduce the effect of waves and swell.
+It is able to accommodate 742 persons.
-Maximum draught is 31.6 meter, excluding the DP thrusters. Length overall is 201.6 meter, breadth 88.4 meter.
+==Particulars==
+{| border=1 cellspacing=0 cellpadding=5
+| Length overall
+| 201.6 meter
+|-
+| Breadth
+| 88.4 meter
+|-
+| Max. draught
+| 31.6 meter
+|-
+| Depth to workdeck
+| 49.5 meter
+|-
+| Height crane above workdeck
+(at minimum radius)
+| 144 meter
+|-
+| Lightship weight
+| 72,484.3 mT
+|-
+| Max. displacement
+| 198,750 mT
+|}
 ==Remarkable projects==
@@ Line 12: / Line 37: @@
 * Installing the pylon of the [[Erasmus_Bridge|Erasmus Bridge]] in [[1995]].
 * Decommissioning of the [[Brent_Spar|Brent Spar]] in [[1998]].
-* In [[2000]] it set a world record of 11,883 ton by lifting Shell's Shearwater topsides.
+* In [[2000]] it set a world record of 11,883 mT by lifting Shell's Shearwater topsides.
-* In [[2005]] it installed the heaviest single piece foundation piles: 2.74 meter diameter x 190 meter long, weighing 818 tons each for ChevronTexaco's Benguela Belize [[Compliant_Tower|compliant tower]].
+* In [[2004]] it installed the topsides on BP's Holstein, the worlds largest [[Spar_Platform|spar]]. The lift was a record for the Gulf of Mexico: 7,810mT.
+* In [[2005]] it installed the heaviest single piece foundation piles: 2.74 meter diameter x 190 meter long, weighing 818 mT each for ChevronTexaco's Benguela Belize [[Compliant_Tower|compliant tower]].
 ==See also==