Brazil
Landmark: Brazil’s Largest Diver-Assist Multiplex Manifold Tied Back to Nearby Production Facility
Project Overview
- Contract Award: 1990 (Trees) 2001 (Manifold)
- Sales: Rio de Janeiro, Brazil
- Fabrication: Rio de Janeiro, Brazil
- Service Base: Macaé, Brazil
- Host Type: Platform
- Contract Type: EPC
Project Characteristics
- No. Trees: 8 (2 by FMC CBV)
- Water Depth: 150 m (500 ft)
- Tree Type: Vertical
- Tree Pressure: 5,000 psi
- Tree Bore Size: 4"x2"
- Hydrocarbon: Oil/Gas
Project Ownership
Scope of Work
- Two (2) vertical 4"x2" 5,000 psi subsea trees
- Two (2) completion mudline
- One (1) diver-assist manifold
- Seven (7) production wells
- Retrievable valves and chokes
- Multiphase and monophase flow meters
- Hinged ROV panels for diver access
- Five (5) subsea connection modules
- System integration testing, offshore installation support and technical assistance
Comments
The Viola Field was discovered in 1985 and is located in the Campos Basin at a water depth of 150 m (490 ft). Between 1999 and 2001, FMC 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 100 km (60 miles) away from the Barra do Furado (Point A) at a water depth of 130 m (430 ft). It will direct the production of 8 subsea trees (7 production wells and 1 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 (4) subsea control modules. The project also includes mono-phase and multi-phase flow meters, flowlines, control umbilicals and hinged ROV panels designed to facilitate diver access to the retrievable valves, chokes and transducers.