NORTH SEA INTERNAL TURRET MOORING , NORTH SEA

Unit type: FPSO

Mooring: Internal turret

Client: Samsung Heavy Industries (SHI)

Field: Development project for North Sea fields

WD: Up to 400 metres

No of risers:18

The project was a joint turret development program together with SHI and Promor’s scope included the conceptual and detail design of the internal turret including detail design of the main shaft and caisson structures and components such as the main bearing system, swivel stack arrangement, chain stopper assemblies, piping PFD’s and P&ID’s.

The mooring arrangement utilized a 3 x 5 arrangement to allow for two line failure conditions. Mooring lines would typically be comprised of all chain and with the chains sized to suit the environment loads. For initial design the more stringent metocean data was used.

The riser system was multi-functional with slots for production, water injection, gas and umbilicals. Riser manifolding was provided on the turret shaft decks.