ExplorationPetrobras to dive in fresh deep-water programme in Potiguar basinState-controlled oil company looking to spud Caipora prospect in Block POT-M-952New campaign: the Diamond Offshore semi-submersible rig Ocean Courage has been used in the past to drill wells in the Potiguar basinPhoto: SEMBCORP MARINEFabio PalmigianiRio de Janeiro