The ''Castoro Sei'' (

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...

for ''

Beaver Beavers are large, semiaquatic rodents in the genus ''Castor'' native to the temperate Northern Hemisphere. There are two extant species: the North American beaver (''Castor canadensis'') and the Eurasian beaver (''C. fiber''). Beavers ar ...

Six'') is a column stabilized

semi-submersible Semi-submersible may refer to a self-propelled vessel, such as: *Heavy-lift ship, which partially submerge to allow their cargo (another ship) to float into place for transport *Narco-submarine, some of which remained partially on the surface *Se ...

pipelay vessel. She has an overall length of , a width of and an operating draught of . The ''Castoro Sei'' is equipped with 2 rotating gantry cranes 134 tonnes capacity, three 130 tonnes pipe tensioners and a 400 tonnes abandon and recovery winch for pipelaying. She provides accommodation for 354 people. The firing line comprises the fixed pipelay ramp, enclosed in the central housing, running along the longitudinal centreline of the vessel. It is connected to an internal and external ramp, both of which have adjustable inclination to facilitate pipelay in varying water depths. A ramp extension unit is available for use in deep water or for severe seabed conditions. The ''Castoro Sei'' was built in 1978 by

Fincantieri Fincantieri S.p.A. () is an Italian shipbuilding company based in Trieste, Italy. Already the largest shipbuilder in Europe, after the acquisition of Vard in 2013, Fincantieri group doubled in size to become the fourth largest in the world (2014 ...

Trieste Trieste ( , ; sl, Trst ; german: Triest ) is a city and seaport in northeastern Italy. It is the capital city, and largest city, of the autonomous region of Friuli Venezia Giulia, one of two autonomous regions which are not subdivided into provi ...

yard, and is owned and operated by

Saipem Saipem S.p.A. (Società Anonima Italiana Perforazioni E Montaggi lit. ''Drilling and Assembly Italian Public Limited Company'') is an Italian multinational oilfield services company and one of the largest in the world. Until 2016 it was a subsid ...

. Her port of registry is

Nassau, Bahamas Nassau ( ) is the capital and largest city of the Bahamas. With a population of 274,400 as of 2016, or just over 70% of the entire population of the Bahamas, Nassau is commonly defined as a primate city, dwarfing all other towns in the country. ...

. It has been used for laying a number of pipelines in the

Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Roma ...

North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...

and

Mediterranean Sea The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ea ...

, including

Blue Stream Blue Stream is a major trans-Black Sea gas pipeline that carries natural gas to Turkey from Russia. The pipeline has been constructed by the Blue Stream Pipeline B.V., the Netherlands based joint venture of Russian Gazprom and Italian Eni. T ...

, Greenstream,

Medgaz Medgaz is a submarine natural gas pipeline between Algeria and Spain. History The idea of building a direct gas pipeline between Algeria and Europe arose in the 1970s. However, the technical limitations at that time prevented the construction ...

, Trans-Mediterranean,

Europipe II Europipe II is a natural gas pipeline from the Kårstø processing plant north of Stavanger to a receiving terminal at Dornum in Germany. It came on stream on 1 October 1999. Route It starts from Kårstø processing plant and runs about ons ...

, and

BBL A barrel is one of several units of volume applied in various contexts; there are dry barrels, fluid barrels (such as the U.K. beer barrel and U.S. beer barrel), oil barrels, and so forth. For historical reasons the volumes of some barrel units ...

pipelines. The vessel also laid most of the

Nord Stream 1 Nord Stream (German-English mixed expression; german: Nord and en, Stream, literally 'North Stream'; russian: Северный поток, ''Severny potok'') is a pair of offshore natural gas pipelines in Europe that run under the Baltic Sea ...

pipeline in the

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from ...

References

{{DEFAULTSORT:Castoro Sei 1978 ships Ships built in Italy Crane vessels Semi-submersibles Pipe-laying ships Ships built by Fincantieri