Baltic Pipe, Offshore Services

Baltic Pipe

The purpose of the Baltic Pipe projects was to strengthen the European internal energy market. Rohde Nielsen was awarded, as Saipem’s Subcontractor, a significant contract with multiple scopes involving:

  • Boulder clearance of more than 1,000 boulders
  • Trench dredging of approximately 1,000,000 m3 in a trench lenght summarizing 50+ km
  • Backfilling in all sections
  • Pipe-pull operation in both Denmark and Poland, including dredging the mictrotunnel exit pit, recovery of the tunnel boring machine, installation of bellmouth and end-cap and wirelay of pullwire
  • Installation of 800t winch capacity in both Denmark and Poland, and pipe-pull operation at both sites

Rohde Nielsens units Grane R, Heimdal R, Toste R, Tjalfe R, Mjølner R, Gungner R, Skinfaxe R, Rimfaxe R, and a number of CTVs and survey vessels executed the job impeccably.

  • Location: Denmark and Polen
  • Scope: 1,000,000 m3, 1,000 stones
  • Client: Saipem Ltd
  • Year: 2021-2022

The fleet that made it possible

  • Grane R
  • Heimdal R
  • Toste R
  • Tjalfe R
  • Mjølner R
  • Gungner R
  • Skinfaxe R
  • Rimfaxe R
Hopper capacity
4,900t
Length overall
93.00m
Breadth
22.20m
Draught loaded
6.50m
Draught unloaded
5.40m
Dredging/Installation depth
up to 100.00m
Hopper capacity
2,100t
Length overall
84.00m
Breadth
18.70m
Draught loaded
5.80m
Draught unloaded
3.80m
Dredging/Installation depth
up to 100.00m
Hopper capacity
535m3
Length overall
45.70m
Breadth
10.50m
Draught loaded
3.50m
Draught unloaded
2.20m
Dredging depth
up to 100.00m
Hopper capacity
789m3
Length overall
57.50m
Breadth
14.80m
Draught loaded
3.45m
Draught unloaded
1.80m
Dredging depth
up to 100.00m
Bucket size
3.5-16m3
Length overall
51.50m
Breadth
17.00m
Draught
1.80m
Depth
3.00m
Dredging/Installation depth
22.00m
Bucket size
5.4-11m3
Length overall
54.88m
Breadth
15.25m
Draught
1.82m
Depth
3.35m
Dredging/Installation depth
20.00m
Length overall
27.02m
Breadth
9.74m
Draught
2.63m
Main engine
2×1,230kW
Speed
12.2kn
Length overall
23.35m
Breadth
8.00m
Draught
2.10m
Main engine
2x634kW
Speed
10.5kn

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