Fri 09th April 2021 | 01:29 PM Chinese scientists have completed a deep-sea drilling project to obtain a sediment core with a length of 231 meters from a depth of over 2,000 meters in the South China Sea, setting a new world record for deep-sea drilling CHANGSHA (APP - UrduPoint / Pakistan Point News - 9th Apr, 2021 ) :-- Chinese scientists have completed a deep-sea drilling project to obtain a sediment core with a length of 231 meters from a depth of over 2,000 meters in the South China Sea, setting a new world record for deep-sea drilling. Aboard a marine research vessel, China's independently developed drilling system "Sea Bull II" took approximately 15 hours to drill the sediment on the seabed 2,060 meters under the sea on Wednesday.