[CNOOC: A major breakthrough in ultra-deep oil and gas exploration in the central Bohai Sea] On November 12, China National Offshore Oil Co., Ltd. discovered a high-yield oil and gas well in volcanic rock in an ultra-deep formation exceeding 5,000 meters in the Bohai Sea, marking a major breakthrough in China's offshore ultra-deep natural gas exploration. The well is located in the central waters of the Bohai Sea, close to the Bozhong Sag, the largest hydrocarbon-rich depression in the Bohai Sea. A total of more than 120 meters of natural gas layers have been drilled in the volcanic rock strata, and the drilling depth was 5,770 meters. After testing, the well produced about 800,000 cubic meters of natural gas (about 28 million cubic feet) per day, showing broad exploration prospects in the offshore ultra-deep volcanic rock field and effectively promoting the natural gas exploration process in the Bozhong Depression. Xu Changgui, chief scientist and chief geologist of China National Offshore Oil Corporation, said that in recent years, CNOOC has continued to increase theoretical innovation and key technological research on deep-ultra-deep oil and gas enrichment in basins with high heat flow and strong activity. China's sea exploration has achieved a major leap from shallow to deep-ultra-deep. The successful drilling of this well opened up a new area for offshore ultra-deep natural gas exploration and expanded the deep oil and gas exploration space in the Bohai Sea. It is of positive significance for accelerating the ultra-deep exploration process in the Bohai Sea and building a trillion-square-meter atmospheric area in the Bohai Sea. (Reporter Guo Songqiao)