All of the packages to feature exhaust mounted waste heat recovery units

Rolls-Royce has announced that it will deliver a further eight RB211 industrial gas turbines for Nigeria’s offshore oil and gas fields in 2009 as part of contracts worth $150 million from Total.

The units, for a floating production, storage and offloading (FPSO) vessel in the Usan field and a fixed offshore platform in the Ofon field, bring the total number of RB211s ordered by Total for use offshore Nigeria to 19.

Six of the RB211 gas turbine packages will be electrical generating sets, three for each field, to provide up to 160MW of electrical power for the new installations. All of the packages will also feature exhaust mounted waste heat recovery units.

The remaining two sets will be gas compression packages to export gas to another facility or to re-inject gas into the oil field to enhance oil recovery in the Usan field.

The new Usan oil field, 100km southeast of Bonny Island in water depths ranging from 750m to 850m, is scheduled to become operational in 2012, when production will be in the region of 180,000 barrels of oil per day.

Phase-two of the Ofon oil field development will allow an increase in oil output from 25,000 barrels per day to around 100,000 barrels per day in 2011. The gas produced from the Ofon field will be piped to the Amenam complex. The packages for Usan and Ofon are due for delivery to the module fabrication yards by the fourth quarter of 2009.