Allseas Engineering B.V. 3. Contracting, installation and transport

Allseas Engineering B.V.

Poortweg 12
2612 PA Delft
The Netherlands
+31 (0)15 2681800

Allseas is a world-leading contractor in the offshore energy market, with dynamism, rapid progress and pioneering spirit at its core. For 35 years, we have been pushing boundaries to deliver unique solutions to meet the markets ever-changing needs.

Experts in the execution of large and complex projects, Allseas supports clients already in the conceptual design stage and offer services for project management, engineering, fabrication, installation, removal and commissioning. Designed and optimised in-house, our specialised fleet of record-breaking heavy lift and construction vessels exceed the limit of what is possible above and below the water surface.

Our record-breaking platform installation/decommissioning and pipelay vessel, Pioneering Spirit  is a game-changer. Built to install and remove large offshore platforms in a single piece, the world s largest vessel redefined heavy lifting with the single-lift removal of the 24,000-t Brent Delta topsides from the North Sea in 2017, a feat surpassed in 2019 with installation of the 26,000-t Johan Sverdrup production platform offshore Norway.

The emergence of Pioneering Spirit  signifies a step-change in offshore platform installation and decommissioning. Capable of lifting entire topsides of up to 48,000 t and jackets up to 20,000 t in one piece, she significantly reduces the amount of offshore work associated with installation and decommissioning, moving the work onshore where it is safer and more cost effective.

Lorelay  was the worlds first dynamically positioned pipelay vessel, changing the nature of the pipelay industry. Solitaire   has set new standards in the pipelay industry. She has achieved lay speeds of over 9 km a day, and holds almost every record for heavy deep-water pipelines.

Allseas employs approximately 4000 people worldwide. Allseas Engineering B.V. in Delft has more than 900 employees, and provides project management and engineering services to the Allseas Group.

Pieter Heerema, Vice President Projects