WeeklySete Brasil puts up last four of its drilling unitsTwo semisubs and pair of drillships for sale with bids expected on 28 FebruaryOut to tender: the Sete Brasil semi-submersibles Urca, above, and Frade, along with the drillships Arpoador and GuarapariPhoto: GARETH CHETWYNDFabio PalmigianiRio de Janeiro