This undated photo shows the comprehensive processing platform of phase II project of China's self-developed ultra-deepwater gas field Shenhai Yihao, or Deep Sea No. 1, located 150 km from the city of Sanya in south China's island province of Hainan. China's first independently-developed ultra-deepwater gas field Shenhai Yihao, or Deep Sea No. 1, has completed construction of its phase II project, which is expected to be operational in the near future, according to the China National Offshore Oil Corporation (CNOOC), its operator. (China National Offshore Oil Corporation (CNOOC)/Handout via Xinhua)