Brazil
Landmark: World’s First Subsea Manifold with Compact Retrievable Well Control Modules with Chokes and Multi-phase Metering Systems
Project Overview
- Contract Award: 2000-2001 (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: 7 (3 by FMC CBV)
- Water Depth: Up to 1,000 m (3,300 ft)
- Tree Type: Vertical
- Tree Pressure: 5,000 psi
- Bore Size: 4"x2"
- Hydrocarbon: Oil/Gas
Project Ownership
Scope of Work
- Three (3) vertical 4"x2" 5,000 psi subsea trees
- One (1) GLL-VI
- Two (2) GLL piggyback with data acquisition
- Two (2) data acquisition modules for piggyback trees
- Five (5) multi-phased flow meters
- One (1) multiplexed subsea production and gasinjection manifold
- Four (4) subsea control modules
- Sixteen (16) vertical connection modules (manifold lowline and tree connection systems)
- System integration testing, offshore installation support and technical assistance
Comments
The Marimbá Leste field development consists of seven (7) wells tied back to a manifold, which will be used to control the flow of five (5) production and two (2) water injection wells. FMC CBV supplied a manifold system and vertical connection modules as well as two (2) GLL-VI subsea trees connected to two (2) additional GLL piggyback subsea trees.
The manifold system has five (5) compact retrievable production modules, which include valves, mono-phase and multi-phase flow meters, chokes and a cross-over pigging loop. The subsea control system has three (3) subsea control modules and a retrievable subsea data acquisition system. The vertical connection system has a funnel-type shape. The electrical system is connected by an ROV using a flying lead.
The piggyback trees, the first of their kind delivered by FMC CBV to Petrobras, are designed to inject water into the reservoir as well as distribute water flow to other tieback injection wells. The trees are designed for a water depth of 2,000 m (6,600 ft) and are controlled by a hydraulic umbilical system originating at an FPSO. The water injection modules have chokes, mono-phase flow meters and pressure/temperature gages. Both systems have retrievable subsea data acquisition modules (MUX), which are located at the production adapter base.