Allseas has executed more than 300 projects and installed over 23,500 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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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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Leviathan

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

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TurkStream

Pioneering Spirit’s  maiden pipelay job is two 940-km 32-inch pipelines 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