Allseas is kicking off preparations for Búzios-10, one of the largest offshore pipeline installation projects in the company’s forty-year history. Commencing in Q3 2026, pipelay vessel Audacia will install 111 km of rigid risers and flowlines in ultra-deep waters.
Awarded by Petrobras following a competitive tender, the contract covers the design, procurement, construction, and installation of subsea infrastructure for the Búzios-10 pre-salt field, located some 180 kilometres off the coast of Rio de Janeiro.
The combination of ultra-deepwater complexities, diverse range of subsea equipment, and extensive engineering and fabrication scope make Búzios-10 one of the most significant contracts in Allseas’ history.
Operating at depths beyond 2 kilometres, the system will link sixteen wells to an FPSO (floating production, storage and offloading) via steel risers configured in a “lazy wave” formation. Critical components such as flex-joints, pipeline end terminations, and jumpers will complete the connections.
Also read: Allseas signs first contract for pipelay vessel Solitaire upgrade
New office in Rio de Janeiro
To support this major contract, Allseas has opened a new project management and engineering office in Rio de Janeiro, which will serve as a strategic hub throughout the project. Additionally, the offshore company is in the final stages of awarding subcontracts for seamless linepipe manufacturing, internal cladding, and flexible joints for the steel catenary risers.
Frans den Hartogh, Project Director, says: ‘This award reaffirms our position as a leading player in one of the world’s most prolific deepwater regions and underscores our ability to execute complex, large-scale offshore projects.’
Búzios-10 marks Allseas’ return to the Brazilian offshore construction market, following successful campaigns installing export pipelines for Petrobras’ Rota 1, Rota 2, and Rota 3 pre-salt developments.
Also read: Allseas deploys ‘bowstring’ pipelay method for first time
Local labour content
With a commitment to forty per cent local labour content, the project will generate 2000 jobs and help strengthen Brazil’s offshore supply chain.
‘We are excited about returning to Brazil after the successes of the past with high hopes for continuation of projects in the region in the future, by hiring and training local talent and investing in the Brazilian industry,’ says André de Melo, Regional Director.
Picture: Allseas will deploy the Audacia for the Búzios-10 pipelines in Brazil (photo by BoH, Wikimedia Commons, CC BY-SA 3.0).
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