Core Viewpoint - China National Offshore Oil Corporation (CNOOC) has achieved a significant milestone in directional drilling technology with its "Xuanji" geological tracking and rotary directional drilling system, establishing a high-speed communication channel that has transmitted over 500,000 curves and exceeded 500GB of data, equivalent to the total data from 1,000 wells or a single well of 1 million meters [2][4]. Group 1 - The "Xuanji" system represents a revolutionary technology in geological exploration and oil and gas development, enabling precise targeting of deep reservoirs and enhancing drilling efficiency [2][3]. - The system has established a real-time data transmission chain from the well site to the cloud and application endpoints, achieving high-speed communication capabilities for deep data transmission [2][3]. - The technology team utilized fluid pressure wave transmission technology to ensure stable data transmission across various media, successfully creating a communication channel over 9,000 kilometers between China and Uganda [2][3]. Group 2 - The transmission rate from the well to the ground has improved from 1bps to 40bps, reaching world-class levels, allowing for an end-to-end control loop from downhole instruments to decision centers [3]. - The "Xuanji" system has been applied on a large scale across important oil fields in China and has been promoted to countries involved in the Belt and Road Initiative, including Indonesia, Iraq, and Uganda, with a total of 151 operations and 120,000 meters drilled overseas [4]. - The system has been highly praised for its capability to support complex oil and gas field exploration and development, providing robust technical assurance for challenging drilling conditions [4].
中国海油“璇玑”实现超远程油田钻探技术突破