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Petrobras Viola

Petrobras Viola


Landmark: Petrobras Viola is Brazil’s largest diver-assisted multiplex manifold tied back to a nearby production facility.

The Viola field was discovered in 1985 and is located in the Campos Basin at a water depth of 490 ft (150 m). Between 1999 and 2001, FMC Technologies CBV supplied three mudline completion trees, which required the assistance of a diver to connect the flowlines and production umbilical. The Viola field also includes downhole monitoring sensors that gage pressure and temperature.

The manifold was installed at about 60 miles (100 km) away from the Barra do Furado (Point A) at a water depth of 430 ft (130 m). It will direct the production of eight subsea trees (seven production wells and one injection well) to the PGP-1 platform. The new manifold will replace the old one, which was installed back in 1987. The new manifold includes a multiplexed control system with four subsea control modules. The project also includes monophase and multiphase flowmeters, flowlines, control umbilicals and hinged ROV panels designed to facilitate diver access to the retrievable valves, chokes and transducers.

  • Two vertical 4"x2" 5,000 psi subsea trees
  • Two completion mudlines
  • One diver-assist manifold
  • Seven production wells
  • Retrievable valves and chokes
  • Multiphase and monophase flowmeters
  • Hinged ROV panels for diver access
  • Five subsea connection modules
  • System integration testing, offshore installation support and technical assistance