Allseas has executed more than 290 projects and installed over 21,500 km of subsea pipeline worldwide. Project scopes range from straightforward pipeline installation jobs to contracts involving design, engineering, fabrication, installation and procurement, and large subcontracted scopes for diving, dredging, rock dumping. Click on the world map to find out more about Allseas’ current and challenging past projects.

Current projects

Johan Sverdrup

Pioneering Spirit’s  first installation job comprises three platform topsides, weighing between 18,000 t and 26,000 t, for the Johan Sverdrup field development offshore Norway.

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Tulip Oil

Short-track EPIC project for North Sea pipeline in the congested Dutch sector requiring multiple crossings and trenching.

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Nord Stream 2

The largest pipeline installation job in Allseas’ history comprises twin 48-inch gas pipelines running 1230 km from Russia to Europe across the Baltic Sea.

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Installation of more than 500 km of multiple diameter pipelines and structures in water depths exceeding 1700 m offshore Israel.

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Pioneering Spirit’s  maiden pipelay job is a dual 940-km 32-inch pipeline through the Black Sea from Russia to Turkey where depths reach 2200 m.

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Sur de Texas

Allseas’ first major job in Mexico, comprising a 685-km, 42-inch subsea gas pipeline along the southwestern shore of the Gulf of Mexico.

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Project history