Castoro Sei
Semi-submersible pipelay vessel
title: "Castoro Sei" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1978-ships", "ships-built-in-italy", "crane-vessels", "semi-submersibles", "pipe-laying-ships", "ships-built-by-fincantieri"] description: "Semi-submersible pipelay vessel" topic_path: "geography/italy" source: "https://en.wikipedia.org/wiki/Castoro_Sei" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Semi-submersible pipelay vessel ::
::data[format=table title="Infobox ship"]
| Field | Value |
|---|---|
| display_title | ital |
| section1 | {{Infobox ship/image |
| image | Castoro Sei March 2011a.JPG |
| image_caption | The Castoro Sei in the Baltic Sea, south-east of Gotland on contract to Nord Stream, March 2011 |
| section2 | {{Infobox ship/career |
| name | Castoro Sei |
| owner | Saipem |
| operator | Saipem |
| registry | Nassau, Bahamas |
| builder | Fincantieri, Italy |
| yard_number | 4334 |
| laid_down | 20 May 1975 |
| completed | 1978 |
| identification | *Call sign C6DF4 |
| fate | Scrapped Aliaga, May 2022 |
| section3 | {{Infobox ship/characteristics |
| tonnage | |
| length | 152 m |
| beam | 70.5 m |
| draught | 15.5 m |
| depth | 29.8 m |
| speed | 5.8 kn |
| crew | 330 |
| :: |
|display_title=ital |section1={{Infobox ship/image |image=Castoro Sei March 2011a.JPG |image_caption=The Castoro Sei in the Baltic Sea, south-east of Gotland on contract to Nord Stream, March 2011
|section2={{Infobox ship/career |hide_header= |name=Castoro Sei |owner=Saipem |operator=Saipem |registry= Nassau, Bahamas |route= |ordered= |builder=Fincantieri, Italy |original_cost= |yard_number=4334 |way_number= |laid_down=20 May 1975 |launched= |completed=1978 |christened= |acquired= |maiden_voyage= |in_service= |out_of_service= |identification=*Call sign C6DF4
|fate=Scrapped Aliaga, May 2022 |notes=
|section3={{Infobox ship/characteristics |hide_header= |header_caption= |class= |tonnage= |displacement= |length= 152 m |beam= 70.5 m |height= |draught= 15.5 m |draft= |depth=29.8 m |decks= |deck_clearance= |ramps= |ice_class= |sail_plan= |power= |propulsion= |speed= 5.8 kn |capacity= |crew=330 |notes=
The Castoro Sei (Italian for Beaver Six) was a column-stabilized semi-submersible pipelay vessel. She had an overall length of 152 m, a width of 70.5 m and an operating draught of 7.8 to.
The Castoro Sei was equipped with 2 rotating gantry cranes of 134 tonnes capacity, three 130 tonnes pipe tensioners and a 400 tonnes abandon and recovery winch for pipelaying. She provided 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 at Trieste yard, and was owned and operated by Saipem. Her port of registry was Nassau, in the Bahamas.
It has been used for laying a number of pipelines in the Black Sea, North Sea and Mediterranean Sea, including Blue Stream, Greenstream, Medgaz, Trans-Mediterranean, Europipe II, and BBL pipelines.{{cite web |url=https://boskalis.com/download-center/download/eyJmaWxlVWlkIjoyODkyLCJyZWZlcmVuY2VVaWQiOjB9/f85323f3a55e39ea8089629716e053067d76f8af.html|title=Libyan Gas Transmission System|publisher=Royal Boskalis|accessdate=2009-07-29}} |url = http://steelguru.com/news/index/2008/12/28/NzY3MjY%3D/Update_on_MEDGAZ_offshore_pipeline_construction_works.html |title = Update on MEDGAZ offshore pipeline construction works |work = Steel Guru |date = 2008-12-28 |accessdate = 2010-03-28 |archive-url = https://web.archive.org/web/20081229041105/http://www.steelguru.com/news/index/2008/12/28/NzY3MjY%3D/Update_on_MEDGAZ_offshore_pipeline_construction_works.html# |archive-date = 2008-12-29 |url-status = dead |title= Europipe II fully laid |url= http://www.statoil.com/en/NewsAndMedia/News/1999/Pages/EuropipeIIFullyLaid.aspx |publisher= Statoil |date= 1999-06-04 |accessdate= 2010-01-29 |archive-date= 2011-06-09 |archive-url= https://web.archive.org/web/20110609200432/http://www.statoil.com/en/NewsAndMedia/News/1999/Pages/EuropipeIIFullyLaid.aspx |url-status= dead |title= BBL Company Offshore |url= http://www.bblcompany.com/project-bbl/offshore |publisher= BBL Company |year= 2011 |accessdate= 2011-10-08 |archive-url= https://web.archive.org/web/20110917121807/http://www.bblcompany.com/project-bbl/offshore |archive-date= 2011-09-17 |url-status= dead |title= First Nord Stream pipelay vessel enters Baltic Sea |url= http://www.baltic-course.com/eng/transport/?doc=25206 |work = The Baltic Course |first = Alla | last=Petrova |date= 2010-03-26 |accessdate= 2010-03-28
References
References
- "Castoro Sei". [[Saipem]].
- "Castoro Sei". Marine Tracker.
- "Nord Stream Pipeline - Pipe Laying Vessel..Saipem's Castoro Sei".
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