World's largest Semisubmersible Rig

escveritas
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World's largest Semisubmersible Rig

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The world's largest offshore drilling semisubmersible rig is the Bluewhale I, delivered by China’s Yantai CIMC Raffles Offshore shipyard in 2017.

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The 7th Generation, dual drilling derrick, DP3 (Dynamically Positioned) equipped rig Bluewhale 1 has an operating depth of up to 12,000 feet (3,658 meters) and a drilling depth to 50,000 feet (15,240 meters), making it capable of drilling in any waters around the world. It is 387 feet (118 meters) high, equal to a 37-story building.

The rig cost $700 million and will be operated by CPOE and Bluewhale and has been classed by DNV GL.
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