Allseas Group S.A. is a Dutch offshore contractor specialising in pipelay, heavy lift and subsea construction.[2] It was founded in 1985 by owner and president Edward Heerema, employs 4,000 people and operates worldwide.
The company is headquartered in Châtel-Saint-Denis, Switzerland. It also owns a subsidiary, Allseas Engineering B.V., based in the Netherlands with offices in Delft, Eindhoven and Enschede, which provide project management and engineering services to the group. The company also operates project and engineering offices out of Australia, Malaysia and the USA.[3]
Allseas operates a versatile fleet of specialised heavy-lift, pipelay and subsea installation vessels. The company has installed over 20,000 km of subsea pipeline worldwide using S-lay technology, with diameters ranging from 2 to 48 inches.[4] Allseas launched its first vessel Lorelay, the world's first pipelay vessel to operate on full dynamic positioning, in 1986.[5] It also owns Pioneering Spirit, the world's largest vessel, designed for the single-lift installation and removal of large oil and gas platforms and the installation of record-weight pipelines.
^Allseas website: About company, visited 21 December 2019
^"Allseas company". www.allseas.com.
^"Allseas offices and yards". www.allseas.com.
^"Pipeline installation". www.allseas.com.
^"Converted DP Lorelay to install deepwater lines". Offshore Magazine. 1 January 1996.
initial concept, by Allseas technical director W.P. Kaldenbach, was of a vessel capable of lifting entire platforms, and in 1987 Allseas declared its intention...
was the sole owner of Allseas, a major offshore oil business company. The company is now run by his son Pieter. Through Allseas, he was the owner of the...
Istanbul to execute the project. A contract with an offshore contractor Allseas for laying the first line was signed on 8 December 2016 and the contract...
and capability range Archived 21 September 2014 at the Wayback Machine. Allseas. Retrieved 2014-10-14./ "LNG carrier "Mozah" delivered to Qatargas and...
AS, a subsidiary of Eesti Gaas, and the offshore section was built by Allseas. The offshore pipeline was laid by the pipe-laying vessel Lorelay. Pipes...
Edward Heerema, the owner of the offshore pipe layer Allseas, to warn him of sanctions if Allseas did not suspend its work on the pipeline, which would...
of Acergy. Other pipe-laying ships, which were used, are Solitaire of Allseas, and Saipem 7000 of Saipem. The pipeline was opened in two stages. The...
5 August 2009. . "ONSHORE PIPELINE QUANTIFIED RISK ASSESSMENT" (PDF). Allseas Engineering BV. Department of Communications, Energy and Natural Resources...
(33–49 ft) 403,342 In service Daewoo Shipbuilding & Marine Engineering Allseas Prelude FLNG - Floating production storage and offloading 488 m (1,601 ft)...
Name Image Company Lifting capacity Country Pioneering Spirit Allseas 20,000 t 22,000 short tons Switzerland Hyundai-10000 Hyundai Heavy Industries 10...
according to a log. The renamed ship, as Provider 1, was operated by Allseas Marine Contractors S.A. in the log until June 2005 showed the name of Calamity...
care Pharmaceuticals Hünenberg 1945 Eye care products, part of Novartis Allseas Oil & gas Pipelines Châtel-Saint-Denis 1985 Pipelines, offshore services...
venture sparks calls for moratorium". The Guardian. "The Metals Company and Allseas Announce Successful Completion of Harbor Wet-Test Commissioning of Robotic...
condensate—an amount significantly larger than originally expected. In June 2020, Allseas announced that it had completed the installation of the 90.3-kilometer...
Saipem) and the pipeline was constructed by Saipem. Saipem subcontracted Allseas to lay more than 25% of both pipelines. The seabed was prepared for the...
Islands, St. Maarten and the Bahamas. 19 6 "MV Solitaire" Pipe-Laying Ship Allseas Group Barbara Budd 2010 (2010) In the Ormen Lange Gas Field, located 120...
800 crab pots at sea and Maura Harrington's hunger strike against the Allseas pipe-laying ship Solitaire in 2008, an alleged assault on Corduff in 2009...
first and second lines of the offshore section were awarded to Saipem and Allseas. Contracts for the third and fourth line were to be signed in December...
development, including Brown & Root, Santa Fe, Saipem, Highlands Fabricators, Allseas, Emtunga and Trafalgar House. In 1994, the project was sanctioned and first...
she began a hunger strike in protest at the arrival of the Solitaire, an Allseas pipe-laying ship assisting Royal Dutch Shell. The strike took place at...
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