The deepest of its kind in China, the Shenhai Yihao ultra-deepwater gas field began operation in June 2021.
According to the China National Offshore Oil Corporation (CNOOC), its operator, the gas field can now ensure its daily gas output to reach the design peak of 10 million cubic meters, greatly promoting the increase of domestic deepwater oil and gas output.
Deep Sea No.1, located 150 km from the city of Sanya in south China's island province of Hainan, is able to operate at a maximum depth of over 1,500 meters in the sea.