Allseas News


Allseas Takes Aim at Nuclear Power for Energy-Intensive Vessels

Jun 05, 2025

Dutch offshore contractor Allseas has launched a five-year plan to design, develop and deploy a Small modular reactor (SMR) tailored for integration into offshore vessels and for onshore use.Building on 40 years of engineering expertise in the offshore energy industry…

Allseas to Electrify Launch and Recovery Systems

Jan 16, 2025

Allseas has commissioned MacArtney to replace existing hydraulic launch and recovery systems (LARS) with the all-electric eLARS on three vessels.The scope comprises three over-the-side 150 kN all-electric A-frames, including docking head and AHC winch…

Allseas Set to Embark on Australia’s Largest Ever Decom Job

Dec 19, 2024

Esso Australia, a subsidiary of ExxonMobil Australia, has hired Allseas for the removal of up to 12 retired oil and gas platforms from the Gippsland Basin in the Bass Strait, with a combined weight of approximately 60,000 tonnes.Allseas’ removal…

Brent Field Decommissioning Project Enters Next Phase

Nov 05, 2024

Mammoet has completed the load-in of the last and heaviest of the Brent oil and gas field topsides, Brent Charlie, which has been skidded onto the quayside for decommissioning operation.The Brent field, one of the largest oil and gas fields in the North Sea…

Allseas Hooks $180M Pipeline Installation Job Offshore Philippines

Sep 10, 2024

Prime Energy Resources Development, a subsidiary of Prime Infrastructure Capital, has awarded a $180 million contract to Allseas for the installation of essential pipeline and umbilical infrastructure as part of Malampaya Life Extension Project…

Pioneering Spirit Booked for Gennaker Substation Installs

Apr 29, 2024

Dutch offshore contractor Allseas informs it has secured the contract to perform transport and installation (T&I) of two major substations (so called OSS) for the Gennaker offshore wind farm in the German Baltic Sea, developed by transmission operator 50Hertz…

Allseas Makes Progress on Santos’ Barossa Gas Export Pipeline in Australia

Apr 16, 2024

Offshore installation contractor Allseas has made progress on the installation of the pipeline for Santos’ Barossa Gas Export Pipeline (GEP) project offshore Australia.Allseas’ Audacia pipelay vessel has installed her largest ever PLET in S-mode…

Pioneering Spirit Kicks Off Pipelay Ops for BP’s LNG Project

Dec 22, 2023

Allseas’ construction vessel Pioneering Spirit has started pipelaying work on BP’s ultra-deepwater Greater Tortue Ahmeyim (GTA) natural gas project offshore Mauritania and Senegal. Allseas’ offshore construction support vessel Oceanic kicked…

VIDEO: Allseas Inaugurates New Barge for Shallow-water Offshore Construction

Oct 27, 2023

Offshore installation services firm Allseas has inaugurated 'Sandpiper', its new barge for shallow water offshore construction activities.Allseas said Thursday that the 170-meter barge was inaugurated this week in Singapore with a special ceremony after several upgrading activities in 2022/2023…

Allseas Wins Contract for Construction of Key Subsea Pipeline for Porthos CCS Project

Oct 24, 2023

Offshore installation contractor Allseas has won a contract to construct a subsea pipeline for the recently sanctioned Porthos carbon capture and storage (CCS) project in the Port of Rotterdam.Porthos, a partnership between EBN, Gasunie, and the Port of Rotterdam Authority…

Allseas' Pioneering Spirit Takes on Challenging Pipelay Project for BP

Oct 05, 2023

Oil major BP has selected offshore installation contractor Allseas to complete the subsea pipelay scope for its ultra-deepwater Greater Tortue Ahmeyim (GTA) natural gas project offshore Mauritania and Senegal.Allseas will conduct the offshore…

M.A.R.S. Chosen for Sustainable Recycling of EnQuest's Heather Alpha Topsides

Jul 18, 2023

Offshore installation and decommissioning services firm Allseas has awarded Modern American Recycling Services Europe (‘M.A.R.S.’) a contract for project management and engineering, receipt with load-in assistance, dismantling, and disposal…

Allseas Wins Deal to Transport Two 2GW Converter Platforms to German North Sea

May 26, 2023

Offshore installation services company Allseas has won a contract to transport two 2GW converter platforms for the BalWin1 and BalWin2 offshore grid connection systems in the German North Sea.The contract, awarded by Dragados Offshore, is for…

TenneT Taps Allseas, Heerema to Install 14 Massive Offshore Converter Stations

May 17, 2023

Dutch-German transmission system operator TenneT has signed multi-year framework agreements with offshore installation firms Allseas and Heerema Marine Contractors for transport and installation of at least fourteen 2-gigawatt (2GW) offshore platforms…

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