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China plans giant 11,000-ton ship to drill into seabed at depths of 16,400 feet

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China plans giant 11,000-ton ship to drill into seabed at depths of 16,400 feet

Engineers at the China Communications Construction Company (CCCC) have completed the design research for a 11,023 tons (10,000-tonne) deep-sea engineering survey ship. It will also feature a 16,404-foot (5,000 m) deepwater drilling kit, marking an important milestone on its journey toward construction. 

Deep-sea research vessels are specially designed floating laboratories that carry out multiple oceanographic activities from a single platform. Several countries operate these vessels to explore local marine environments, track environmental change, and study its impact on human civilization.

China operates one of the largest marine and deep-sea research fleets, surpassing the US, the UK, European countries, and island nations such as Australia and Japan. A team of engineers, academics, and specialist researchers at CCCC spent the last two years completing the technical research that culminated in the final design of the vessel. 

According to the design blueprint, the vessel will feature a Beidou time and space reference system for navigation and positioning. This will be a highly precise system necessary for offshore surveying and mapping. 

In addition to these capabilities, the vessel will also feature in-situ testing and ocean observation onboard. The centerpiece of its capabilities is the 16,404 feet (5,000 m) deepwater drilling kit. The large-bore top drive supports multiple coring methods with a 150-tonne load rating. 

A traveling block heave compensation system facilitates both active and passive drilling modes. The heave compensation is designed to keep the drill string steady even when the ship rises and falls on the swells. 

To test the seabed, the blueprint features an integrated downhole cone penetration system and uses a bottom-hold sampling method that can work at depths of nearly 5,000 feet (1,500 m) and a penetration force of 100kN.


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