Ke Ji Ri Bao·2025-05-12 18:56Group 1 - China National Offshore Oil Corporation (CNOOC) has achieved a significant milestone by completing a deepwater drilling operation in 11.5 days, setting a new record for drilling cycles in the 3500-4000 meter range in China [1] - The breakthrough validates the advanced nature of China's independent deepwater drilling and completion technology system, which is crucial for promoting large-scale growth of deepwater oil and gas resources [1][2] - Since the 14th Five-Year Plan, the volume of deepwater drilling and completion operations in China has increased by over 74% compared to the previous five years, supporting the production of large deepwater oil and gas projects [1] Group 2 - CNOOC's drilling team has successfully tackled four major global technical challenges in deepwater, deep-layer, high-temperature, and high-pressure environments, enhancing pressure control precision to within 0.2 MPa [2] - The successful drilling of the Lingshui 36-1 gas field and the "Deep Sea No. 1" project demonstrates the potential of China's deepwater carbonate exploration [2] - CNOOC aims to further advance deepwater oil and gas development technologies towards deeper and faster operations, transitioning from experience-driven to data-driven and intelligent decision-making processes [3]