Singapore-based Nortrans Offshore has secured a two-year charter with SBM Offshore for its semi-submersible flotel Nor Spirit in Angola. The 2015-built DP3 maintenance and safety unit will support life-extension work on the FPSOs Saxi Batuque and Mondo on Block 15. The units are operated by SBM Offshore under a lease and operate contract with Esso …