First Subsea reported that the Peregrino FPSO submerged turret production (STP) buoy has been lowered overboard in preparation for tow out.
The Peregrino STP buoy will be moored in 100m of water, 85km offshore Brazil at Statoil's Peregrino field. First Subsea is providing ten Ballgrab ball and taper connectors with a minimum breaking load (MBL) of 10,600kN for its 30 year life.
The female Ballgrab connectors were attached around the side of the buoy ahead of tow out. This avoids the need to attach the buoy mooring lines before tow out thus simplifying buoy lifting and tow out operations. Once in buoy is position, the male Ballgrabs and mooring lines are connected subsea with assistance by ROV, and avoiding the need for divers.
The STP buoy is manufactured by Advanced Production and Loading (APL), a BW Offshore division. First Subsea is also supplying a buoy pull-in connector for the Peregrino FPSO, operated by Maersk FPSOs Brazil, to retrieve the STP buoy.