Krylov State Research Centre develops conceptual design of pipe-laying ship

Krylol State Research Centre has developed a conceptual design of a pipe-laying ship. The vessels will be deployed to the maximum in view of large scale plans for construction of buried subsea pipelines in Russia and other countries.

Vessel functions

• Laying of concrete coated steel pipes as well as flexible metal-reinforced plastic pipes in offshore waters at the depth of 20 - 500 m
• Storing, preparing, welding and laying of steel pipes with the diameter of up to 1220 mm, 12 - 24 m length, 30 mm wall thickness, 25 MPa pressure
• Paying out the pipes, hoses and cables through the tunnel flowing into a stringer in the middle part of the hull for ice protection

Vessel Characteristics

• Class - KM Arc4 [1] ?UT1 ICS DYNPOS-2 EPP HELIDECK WINTERIZATION (-40º?)
• Displacement 81 200 t
• Deadweight 44600 t
• Length 245 m, width 34 m, depth 26 m
• Draught 12 m, speed 12 knots, propulsive output 48 MWt
• Endurance 30 days
• 250 crew and personnel
• Stinger length 95 m
• Speed of pipe laying up to 3 km/d

Technical solutions of the vessel’s conceptual design

• Diesel-electric propulsion system, three fore and three stern rudder propellers.
• Combined positioning system: dynamic-positioning system (3 fore and 3 stern rudder propellers)
• Anchor mooring system (6 fore and 4 stern anchor lines)
• Centralised system for control of cargo and ballast operations
• Winterisation system
• Improved environmental safety
• Two-compartment standard
• Special cargo cranes for concrete coated steel pipes
• Heliport
• Indoor preparing
• Welding and laying of steel pipes
• Means for deicing of structures and equipment

The conceptual design developed by Krylov State Research Centre meets the operating requirements for the Barents, Pechora and Kara Seas. It is the basis for the development of the technical design.

Adapted from press release by Hannah Priestley-Eaton

Read the article online at: https://www.worldpipelines.com/business-news/31102013/krylov_state_research_centre_develops_conceptual_design_of_pipe-laying_ship/