Hybrid configuration is taking hold  in the pre-salt


As in Mero, Petrobras will use rigid and flexible pipelines in the submarine interconnection of the Sepia field

After an era of flexible risers, the hybrid submarine configuration is becoming Petrobras’ preferred option for its new pre-salt projects. As in Mero 1, the state-owned company will use the steel lazy wave riser (SLWR) system, with rigid and flexible ducts, in the subsea interconnection of the Sepia field.

According to a report published in April, rigid risers were once again an alternative to the Santos Basin ventures after recordings of incidents with flexible natural gas injection lines in the Lula and Sapinhoa fields.

The Sepia field will have 15 wells interconnected to an FPSO installed in a water depth of approximately 2,140 m. As in Mero 1, the collection system will consist of rigid oil and injection production ducts, while service lines and jumpers will be composed of flexible pipelines.

The tender for the contracting of goods and services for installation and subsea interconnection of Sepia provides for the acquisition of more than 30 km of rigid carbon steel pipes, seven PLETs (Production Line End Manifold), plus jumpers, vertical connection modules (VCMs) and suction piles, among other equipment. Flexible risers will come from closed frame agreements in the past with suppliers such as BHGE, NOV, Prysmian and TechnipFMC.

Among the services provided are detailed engineering design, operation of an onshore logistics and storage base, and offshore activities, including pipeline launch, pre-commissioning and installation of submarine equipment.

Petrobras will require local content indexes of 95% for detail engineering, 80% for management, construction and assembly activities and 50% for the production of rigid production and injection lines.

The tender submission deadline is scheduled to begin on September 24, running until October 8 of this year.

Source: Brazil Energy

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