Core Viewpoint - China National Offshore Oil Corporation (CNOOC) has achieved a significant breakthrough in the exploration of Paleogene lithology in the Liaozhong sag of the Bohai Bay Basin, successfully drilling high-yield oil and gas wells [1] Group 1: Exploration Achievements - The Liaozhong sag is located in the northern Bohai Sea with an average water depth of 22 meters. The tested well produces approximately 500 tons of crude oil and 20,000 cubic meters of natural gas per day [1] - The region has complex oil and gas reservoir structures, and there have been no large-scale exploration discoveries for many years. CNOOC's research team has made continuous technological advancements and conducted multidisciplinary joint research [1] Group 2: Technological Innovations - CNOOC has established a coupling relationship between sediments and uplifts, innovatively proposing a favorable migration model for Paleogene lithology, which has addressed the scientific challenges of large-scale accumulation in Paleogene lithology [1] - The breakthrough in the Liaozhong sag confirms the significant exploration potential of Paleogene lithology oil and gas reservoirs in the Bohai Bay Basin [1] Group 3: Strategic Implications - The success in the Liaozhong sag promotes the secondary exploration process in old oil fields and provides replicable technical routes and practical experiences for similar exploration in China's offshore areas [1] - Recent discoveries of large and medium-sized Paleogene oil and gas fields in various sea areas by CNOOC highlight the importance of this new finding for ensuring stable energy supply in the Beijing-Tianjin-Hebei region and the surrounding Bohai Sea area [1]