Two offshore support vessels contracted by Italian engineering company Saipem have cleared customs in Rio de Janeiro and are heading to the Campos Basin to begin construction of the Raia project gas pipeline, one of Brazil's largest natural gas developments, Offshore Energy reported.

Amsterdam-based shipping company Spliethoff will charter the m/v Brouwersgracht and m/v Bloemgracht from its fleet to support pipeline installation work, according to industry reports.

The vessels are proceeding to Guarujá before departing for the Raia field located around 200 kilometres offshore Rio de Janeiro.

Saipem was contracted in November 2023 to install the subsea gas export pipeline and associated equipment at water depths of about 2,900 metres. The Italian company's scope encompasses offshore transportation and installation operations for the development.

Norwegian energy company Equinor operates the Raia project with a 35% stake held by Repsol Sinopec Brasil and 30% by Brazilian state-owned oil company Petrobras.

The field encompasses three distinct pre-salt discoveries including Pão de Açúcar, Gávea and Seat, with recoverable reserves of natural gas and condensate exceeding 1bn barrels of oil equivalent.

The project represents a significant addition to Brazil's natural gas production capacity as the country seeks to monetise vast pre-salt resources in the Campos and Santos basins.

Equinor has positioned the development as a key component of its international portfolio while Brazil aims to reduce dependence on imported liquefied natural gas (LNG).

Pipeline installation work in ultra-deepwater environments requires specialised vessels and equipment to handle the technical challenges of subsea construction at depths approaching 3,000 metres.

The Raia development follows several major pre-salt gas projects brought online in recent years as operators tap reservoirs beneath thick salt layers offshore Brazil.

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