Angola Block 17
Landmark: The use of the SSUs is a world first on a full scale development of the size of Pazflor
West African success demonstrates the key benefits subsea separation can deliver in large-scale deepwater oil and gas development projects.
After a successful start-up, Total's Pazflor project offshore Angola began producing oil and gas in late August 2011 using gas/liquid subsea separation and pumping systems supplied by FMC Technologies, Inc., under contract to Total Exploration and Production Angola. The Pazflor project marks a world-first for the use of this technology, in particular for a development of such immense size.
Located in prolific Block 17, some 93 miles (150km) offshore of Angola, Pazflor will produce oil and gas from 25 subsea wells, supported by 22 water injection and two gas injection wells, drilled in four different reservoirs in water depths of 2,000 to 4,000 feet (600 to 1,200 meters). The Pazflor fields cover an area of 238 square miles (600km2). A system of flow lines and risers will transport the produced fluids to a floating production, storage and offloading vessel (FPSO) with processing capacity of 220,000 bopd.
Three of the four Pazflor reservoirs contain very heavy, viscous oil and relatively low reservoir pressures. Subsea gas/liquid separation and pumping is the key enabling technology making production of this heavy oil possible. The heavy oil (Miocene reservoirs) comprises about two-thirds of the overall Pazflor reserves.