February 2012
Features
New rig designs fill efficiency, utility voids
A majority of the deepwater rigs that have been ordered in the last few years are traditional drillships and semisubmersibles. However, not all rigs are built alike, as is the case with two drillship models being built for Noble Corp., as well as a unique type of semi being constructed for Norwegian operator Statoil via rig contractor Songa Offshore.
