To main content

Trench dredging gas pipeline, Nord Stream

The Nord Stream gas pipeline project is a joint project of four major companies: Gazprom, BASF/Wintershall, E.ON Ruhrgas and Gasunie. The project is more than just a pipeline. It is a new channel for Russian natural gas exports and a major infrastructure project which is expected to set a new benchmark in EU-Russia cooperation. In view of current developments the new pipeline will be an important factor of energy security in Europe.

Nord Stream consists out of two 1,220 kilometers sub-sea gas pipelines from Russia to Northern Germany through the Baltic Sea and will transport natural gas to supply both businesses and private households. The first pipeline is due for completion in 2011. The second line is due to be completed in 2012. Boskalis Offshore, partner within the Joint Venture Boskalis Offshore-Tideway, will prepare the seabed (by means of subsea rock installation) for the laying of the pipelines over the full distance of the Nord Stream pipeline route. Boskalis Offshore also executes the shore approach of the pipelines in Germany. The contract for the preparation of the seabed for the 1,220 kilometers pipelines requires the construction of rock beds and berms using rocks to level the seabed and to provide on-bottom stability for both pipelines. Subsea rock installation will be executed by the nominated Dynamically Positioned Fallpipe Vessels Seahorse, Sandpiper and Rollingstone. The project will be executed in a 50/50 partnership with Tideway. The contract for the shore approach for the pipelines in Germany requires dredging of a trench for the pipelines, pipe-pulls over a distance of approximately 1.4 kilometers and the backfilling of the dredged trench. A 700 meters cofferdam will be constructed at the landfall to facilitate the pipe-pulls. The shore approach will be executed in a 50/50 partnership with Rohde Nielsen A/S.

Related projects

Selected filters
Fleet_OE_Moho.jpg

Transport and installation Moho Nord FPU

For the Total Moho Nord FPU project, Dockwise has transported the newbuild FPU Likouf from the HHI fabrication yard in Ulsan, South Korea to the offshore discharge location near Port-Gentil, Gabon. It was a world-record cargo load onboard a semi-submersible vessel to date. 

Thien_Ung_I.jpg

Installation topside
and living quarters,
Thien Ung BK-TNG

For the Vietsovpetro Thien Ung project, Boskalis has installed the Thien Ung BK-TNG 4,200 metric tonne (mt) topside and 850 mt living quarter by offshore heavy lifting with the sheerleg Asian Hercules III. It was the world’s heaviest lift installation of a topside by a sheerleg in an offshore environment to date. 

1407-0505-30_header.jpg

Development gas export pipeline, Ichthys

The Ichthys development revolves around the construction of a new 42-inch deep sea natural gas pipeline from the Ichthys field in the Browse Basin 880 kilometers to Darwin onshore. The pipeline will run through the Darwin harbor, requiring dredging services in the near shore area, rock installation and the construction of a landfall. Owner INPEX Operations Australia Pty Ltd is developing LNG process facilities on Blaydin Point near Darwin, Northern Territory of Australia.

140718_-_48.jpg

Wintershall RAVN and A6-A

Wintershall Noordzee B.V. installed a new remote platform RAVN as a crude production tie-back to A6-A. RAVN is a remote and unmanned crude well unit. Utilising a dry-tree design, all control, power and metered injection for the well will be via the 18.2-km control umbilical between the new satellite platform RAVN in the Danish sector and the operational platform A6-A in the German sector.

AT2C5860_header.jpg

Dry transport,
FPSO Armada Intrepid

The Armada Intrepid, which is owned by the Malaysian company Bumi Armada, is an FPSO (Floating Production, Storage and Offloading) vessel which needed to be dry transported from Rotterdam (Netherlands) to Batam (Indonesia) on the Dockwise Vanguard. The FPSO is 245 m long and weighs 60,000 metric tons. The DWV (275 x 70 m) has a deadweight of 117,000 metric tons.

ZP_-_pic4_header.jpg

Mooring replacement phase 2, Zafiro Producer

Mobil Equatorial Guinea Incorporated, an affiliate of ExxonMobil, entered into a contract with Boskalis for the Zafiro Producer Mooring Replacement Project Phase 2. The Zafiro Producer is installed in 180 m (590 ft)water depth approximately 74 km (40 nauticalmiles) west of Malabo, Equatorial Guinea.