The ERHA Floating Production Storage and Offloading (FPSO) vessel, commissioned in 2005, remains a critical asset in offshore oil production. With a storage capacity of 2.2 million barrels and an initial production rate of 165,000 barrels per day, its continued efficiency is paramount. Esso Exploration and Production Nigeria (EEPNL) operates this asset.
Within the quarter, BOG undertook crucial maintenance on ERHA FPSO. The contract for this project was awarded using the current General maintenance contract(GMC) EEPNL has with SPIE i.e., SPIE issued us Purchase order (P.O) for this project.
The maintenance focused on repairing a 16×3” Reducing Glass Reinforced Epoxy (GRE) Saddle on the Seawater Lift Pump (SWLP) 3 system. This issue arose after the successful completion of a separate 30x20x16” GRE Loop repair. Upon restarting the line, the 16×3” Reducing Saddle connected to a 3” flange failed. After a thorough inspection, it was determined that the failure was due to pipe strand buckling under stress and pressure, leading to a burst in the 3” GRE pipe connecting the 3” GRE flanged section and the 16×3” GRE Reducing Saddle.
The team swiftly mobilized to repair the leaking 16×3” GRE Reducing Flanged Saddle on the SWLP 3 system. Additionally, all potential vulnerable points were assessed to prevent any future failures. The project was efficiently executed over eight days, with the fabrication phase completed in two days and the installation phase spanning six days.

Upon completion of the repairs, BOG provided critical recommendations to the client to prevent a recurrence of similar failures. These recommendations focused on stress management in GRE piping, improved reinforcement strategies, and enhanced monitoring protocols.
This maintenance shows our commitment to delivering high-quality, reliable engineering solutions that enhance the longevity and safety of offshore operations. Our team remains dedicated to excellence, ensuring our clients benefit from sustainable and efficient energy solutions.
