ExclusiveAsian shipyards face off in Petrobras tender for pre-salt FPSOsBrazilian oil giant receives bids for the P-84 and P-85 FPSOs for the Atapu and Sepia fieldsCompetition: Petrobras chief executive Jean Paul Prates.Photo: AFP/SCANPIXFabio PalmigianiAmanda BattersbyRio de Janeiro/Singapore