FPSO AL ZAAFARANA

Main Characteristics

Description Of Work

In January 2009 Medea was appointed by AKER, FPSO AL ZAAFARANA Management Company, to prepare structural drawings for the foundation for a new genset CAT 3508 to be installed on board.
Medea designers went on board for a preliminary survey, defined the best place for the installation of the new genset together with Owner and DNV and agreed with DNV all steps for the installation.
Structural drawings were prepared and submitted to DNV main office for approval; drawings were approved without comments.
Medea then was appointed to stay on board during foundation construction to check all steel jobs. Foundations were installed according drawings and DNV surveyor approved the installation without comments.

In April 2009 Medea was again appointed by AKER to be the management company for the huge process of the FPSO class renewal. This job lasted over 1 year and during this time, in strict cooperation with DNV, following jobs were carried out:

• Complete thickness measurement of the ship was carried out.
• Main boiler, out of service since 2007, was repaired and brought back in service.
• All sea chest valves were renewed with floating ship and stopping production only for few hours.
• Underwater bottom survey was carried out.
• Sewage system was repaired and FPSO got ISPP certificate.
• Crude Oil Washing Machines were repaired.
• Damaged cargo and COW pipes (up to to 24” and 3 m length) on main deck were replaced with new ones without hot works and without any floating crane assistance.
• Provision refrigerating plant was upgraded installing new evaporators, new automation system and new pipes.
• All steam valves were overhauled.
• Valves on stripping line in cargo pump were overhauled.
• All Pressure Vacuum valves for cargo tanks were repaired and tested according DNV requirements.
• All deluges system for fire protection of process area on main deck was replaced with new one.
• New fire detection and fire alarm system was installed.