Gallery: ‘COSL Prospector’ ready to drill (China)


China’s CIMC Raffles shipyard has delivered a new semi-submersible drilling rig to COSL.

The rig named COSL Prospector today, April 30, 2015, left the deep-water wharf of CIMC Raffles and officially joined the deep-water fleet of China National Offshore Oil Company (CNOOC).

The rig is the fourth deep-water semi-submersible drilling rig delivered by CIMC Raffles for COSL. It can operate around the world except for the arctic zone. The rig has operation depth up to 1,500 meters, drilling depth to 7,600 meters, accommodation for 130 personnel and the maximum variable deck load of 5,500 tons.

According to CIMC, the rig is equipped with most advanced NOV drilling system and DP3 dynamic position system and classed by DNV and CCS.

Since 2010, nine deep-water semi-submersible rigs have set off from CIMC Raffles Yantai Shipyard, operating in North Sea, Brazil, West Africa and the South China Sea. Currently, there are five deep-water semi-submersible drilling rigs being built in the yard.

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