(EnergyAsia, March 23) — Singapore’s Keppel FELS Limited said it has secured a US$177 million contract for the upgrading of a semisubmersible (semi) drilling rig Blackford Dolphin for Blackford Dolphin Pte Ltd, a wholly-owned subsidiary of Fred Olsen Energy ASA.   Blackford Dolphin, the former Ocean Liberator built in 1974 will undergo fast-track refurbishment and…