Chinese deep-sea drilling system achieves milestone at 1,500-meter depth

The Chinese self-developed Hainiu deep-sea drilling system recently passed a crucial trial in the South China Sea, with all core performance indicators meeting expectations, according to the development team on Monday.

The seven-day trial, conducted at a depth exceeding 1,500 meters near China's Deep Sea No 1 gas field, was designed to test the system under real deep-sea conditions. The Hainiu deep-sea drilling system, developed by a team led by Wan Buyan, a professor at Hunan University of Science and Technology in Xiangtan, Central China's Hunan province, demonstrated stable performance throughout the operation.