Telic Engineering received an assignment to convert and functional verify going from single fuel to dual fuel operation for three LM2500+ SAC gasturbine-generators on board the Agbami FPSO located offshore Nigeria. Specifically the tasks consisted of replacing single fuel nozzles with dual fuel nozzles, install primary and secondary liquid fuel manifolds, perform a leak check, and functional verify for liquid fuel the:
- Manifold gas purge valve;
- Drain valves;
- Shutoff valves;
- Fuel metering valve;
- The start-up;
- And fuel transfers from liquid to gas, and vice versa.
One unit was converted during this assignment, and the two other previously converted GTG’s by the crew were verified.
In addition support was delivered during unscheduled shutdowns, and visual inspections performed resulting in recommendations for Chevron to improve their preventative maintenance.
Agbami Oil Field
This oil field is located in Nigeria and discovered in 1998 which was the second major deepwater oil field discovered off the Niger Delta.
The field is located in nearly 1,500 meters (4,900 ft) of water off the central Niger Delta. The operator of the field is Star Deep Water Limited, an affiliate of Chevron. Also involved in the field are Famfa Oil, an indigenous oil company owned by the Alakija Family of Lagos, Petrobras (Brazil), Statoil, and NNPC (the national oil company of Nigeria).
Total reserves in the Agbami oilfield are estimated at around one billion oil-equivalent barrels.
Daewoo Shipping and Marine was contracted to provide the FPSO for $1.1 billion. Daewoo subcontracted this to KBR, which provided the topside design and procurement services for the FPSO. The vessel has a storage capacity of 2.2 million barrels of oil and is designed to be on location for 20 years.
The Agbami FPSO came online on July 29, 2008 and is designed to handle 250,000 bopd, with an additional 450 MMcf/d and 450,000 barrels of injected water per day.
It weighs in at 30,000 tons, has 13 topsides, generates 75 megawatts of electrical power and have living quarters for 100 personnel. Development required 6,500 tons of fabrication, as well as 300,000 man-hours of engineering and services.