(PN) Subsea7 has expanded its fleet of vessels in Brazil with the addition of the Seven Vega – offshore construction vessel (OCV). The vessel will operate in the Bacalhau field, operated by Equinor in the Santos basin, where the Subsea Integration Alliance is conducting the offshore campaign.
“We are immensely proud to bring such a complete Reel-Lay vessel as the Seven Vega to service on our Brazilian projects. Today, in Brazil, we have a dozen assets and more than 1,400 contracted people working in the three main pre-salt fields. This year, we will reach our historic record of activity in the country”, highlighted the Vice President of Subsea7 Region Brazil, Daniel Hiller.
After arriving in Brazil, Seven Vega passed through the naval base of Triunfo, in the state of Rio de Janeiro, and proceeded to the base of Ubu, in Espírito Santo, which after several years in hibernation was completely renovated to support various projects.
“Due to the high demand for Bacalhau, Mero 3 and Búzios 8, the Ubu base was reactivated, with more modern and eco-efficient equipment. The new facility has 2,276 m², an area of 74,000 m². On site, we will manufacture whitened rigid risers with very high quality requirements for the pre-salt, in addition to the 1st rigid pipeline with a polymeric internal lining”, explains Hiller.
With a length of 149 meters and a breadth of 33 meters, the Seven Vega has a Kongsberg Class 3 Dynamic Positioning system. The compact dimensions are the result of the positioning of the three engine rooms and the main spool, the efficient use of the superstructure and the low-draft line launching tower.
Seven Vega’s spool system has a superior tension capacity of 600 tons, consisting of a 32-meter main spool and a 17-meter auxiliary spool, with a maximum storage capacity of 5,600 tons and 1,600 tons, respectively.
The ship also has two cranes offering a lifting capacity of 250 tonnes and 50 tonnes, as well as several smaller cranes alongside two remotely operated underwater vehicle (ROV) systems. The main crane is fully electric, which allows lifting parameters to be readily adjusted without having to manually adapt the active lifting system.
The Subsea Integration Alliance is an unincorporated global strategic alliance between Subsea7 and OneSubsea®, SLB’s underwater technologies, production and processing systems company.