On October 8, 2014, Coslprospector, the fourth semi-submersible drilling rig being built for China Oilfield Services Limited by CIMC Raffles, set off on sea trials helped by Yantai Harbor Pilotage and Beihai Resure Bureau.
Coslprospector is 104.5 meters long, 70.5 meters wide, 37.55 meters high, with an operating depth of 1,500 meters, drilling depth of 7,600 meters, able to accommodate 130 strong crew.
The construction of the drilling rig started on July 3, 2012.
[mappress] World Maritime News Staff, October 9, 2014