Equatorial Guinea Block B
Landmark: ExxonMobil’s First Subsea Early-Production System
Project Overview
- Contract Award: 2002
- Sales: Houston, Texas
- Fab. Trees: Houston, Texas
- Dunfermline, U.K.
- Fab. Controls: Houston, Texas
- Kongsberg, Norway
- Service Base: Malabo, Equ. Guinea
- Host Type: FPSO
- Contract Type: EPC
Project Characteristics
- No. Trees: 19
- Water Depth: 800 m (2,620 ft)
- Tree Type: Vertical, Horizontal
- Tree Pressure: 5,000 psi
- Tree Bore Size: 4"x2", 5"x2"
- Hydrocarbon: Oil
Project Ownership
- ExxonMobil 71%
- Devon 24%
- Gov. Equ. Guinea 5%
Scope of Work
- Fourteen (14) vertical 4"x2" 5,000 psi subsea trees
- Five (5) horizontal 5"x2" 5,000 psi subsea trees
- One (1) six-slot water-injection manifold
- One (1) water-injection flowline end termination and associated "gooseneck" integral hydraulic connectors
- Topside and subsea production control system MCS; unique semicircular external turret-mounted HPU; VSE and EPU on the FPSO
- Electro-hydraulic IWOCS and tree running tools
- Electro-hydraulic flying leads
- Modular subsea distribution units (UTH-HDM-EDM)
- System integration testing, installation assistance, service and maintenance
Comments
The Zafiro Field, located on Block B, is 65 km (40 miles) northwest of Equatorial Guinea in water depths of 425 to 850 m (1,400 to 2,800 ft). The latest development, known as the Zafiro Southern Expansion Area, utilizes a turret moored FPSO as a host, which is expected to recover about 150 mmbo.
The subsea systems contract calls for the supply of nineteen (19) subsea trees, five (5) HOST® and production manifold systems, a water-injection manifold, topside and subsea control systems and related equipment and services. Equipment deliveries and installation activities commenced in March 2002.
Production from the Southern Expansion Area has significantly enhanced the strong performance of the Zafiro area and added to the overall production in the region. This new project demonstrates the continuing commitment of ExxonMobil and FMC to Equatorial Guinea and the Africa Region.