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Marine Vessels

Delivering certainty from shallow to ultra-deepwater

Our versatile marine vessel fleet fuels our ability to support some of the world’s most complex offshore projects, ranging from shallow to ultra-deep-water depths. Through ownership of our fleet, we deliver streamlined project execution, increased efficiencies and reduced emissions relevant to project delivery.

Construction Support, J-Lay, Rigid Pipelay, Subsea

Amazon

Fast-transit, dynamically positioned (DP2) construction vessel with an ultra-deepwater J-lay system rated for 1,653 ST [1,500 MT] dynamic accompanied by two 440 ST [400 MT] Offshore Mast Cranes.

Highlights
  • Fully enclosed 1,653 ST [1,500 MT] dynamic hex joint J-Lay system rated for 11,483 ft [3,500 m] water depth
  • Two 440 ST [400 MT] Offshore Mast Cranes for single fall operations 220 ST [200 MT] up to 16,404 ft [5,000 m] dual fall operations 440 ST [400 MT] up to 8,202 ft [2,500 m] water depth complete with Active Heave Compensation (AHC) and Tandem Operations Capability
  • Pipe storage capacity of 11,023 ST [10,000 MT]
  • Deck cargo capacity of 8,818 ST [8,000 MT]

Shallow Water Capability, Heavy Lift, S-Lay

Derrick Barge 30
Highlights
  • Shallow water pipelay barge with 3,080 ST [2,794 MT] Derrick crane 
  • S-lay capability from 4 to 60 inches with truss or articulated shallow water portable stinger.  
  • 12-point anchor mooring system, up to 250 MT lay tension capacity and 10 ramp stations. 
  • Long track record and performance of worldwide operations. 

Ultra-shallow Water Capability, Heavy Lift, S-lay

Derrick Barge 32
Highlights
  • Unique combination ultra shallow water pipelay barge with 1,650 ST [1,500 MT] derrick crane 
  • S-lay capability from 6 to 60 inches with truss or articulated shallow water portable stinger.  
  • 10-point anchor mooring system, up to 120MT lay tension capacity and 10 ramp stations. 
  • Eco-friendly in terms of lower fuel consumption and sustainable barge. 

Dynamically Positioned, Premier Heavy-lift Vessel

Derrick Barge 50
Highlights
  • Special purpose ship notation for worldwide operations 
  • Upgraded to deliver greater reliability and versatility for offshore construction projects.  
  • Derrick crane lifting capacity up to 4,000 MT. 
  • Improved station keeping with new DP2 control, switchgear, and power management system.  
  • DP2 compliant dynamic positioning system 

Flex Lay, Heavy Lift, Rigid Pipelay, S-lay

Derrick Lay Vessel 2000

The DLV 2000’s combination of S-lay, heavy lift, large deck space and accommodation coupled with efficient transit speed provides McDermott with a versatile asset that can effectively execute projects in all major oil and gas basins around the globe.

Highlights
  • Versatile combination heavy lift and pipelay vessel with 2,200 ST [2,000 MT] crane 
  • Multiple cranes for construction, pipeline and deepwater installation 
  • S-lay capability from 4.5 to 60 inches [114.3 mm to 1,524 mm] with high strain, deepwater stinger 
  • Pipelay operations in single- or double-joint configuration 
  • DP3 compliant dynamic positioning system

Floatover Barge

Intermac 650

Ideally configured for deepwater jacket launch and large deck floatover installation projects.

Highlights
  • Second-largest floatover installation vessel in the world 
  • Four double-action hydraulic jacks can be arranged to load a structure from shore and reposition it offshore for launching or floatover installation 
  • Sensitive ballast system fitted using diesel pumps and 16 hydraulically operated rapid flood bottom valves 
  • Centrally located controls including remote tank level gauging  

Flex Lay, Construction Support

Lay Vessel 108

Fast-transit, dynamically positioned (DP 2) vessel with modern, efficient and versatile flexible and umbilical lay system.

Highlights
  • Modern, efficient and versatile flexible and umbilical lay system 
  • 165 ST [150 MT] Vertical Lay Tower 
  • 165 ST [150 MT] A&R system 
  • Reel Drive System (RDS) – 5 reels at 440 ST [400 MT] each 
  • Optional 2,200 ST carousel 
  • 3,750 ST [2,000 MT] overall product payload @ 90% fuel load 
  • 440 ST [400 MT] main crane capacity 

Flex Lay

North Ocean 102

Fast-transit, dynamically positioned vessel with a vertical lay system for flexible product across a wide variety of water depths.

Highlights
  • Modern flex-lay vessel designed for global operations 
  • Pipelay capability from 50 mm to 620 mm 
  • Basket/Bobbin carousel with 4,000 MT capacity  
  • Flex-lay tower with 300 MT single tensioner 
  • Main crane lift capacity 250 MT 

Global Footprint

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Engineering
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Fabrication
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Primary Operating Centers
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Project Office