Zhong Guo Chan Ye Jing Ji Xin Xi Wang·2025-06-03 22:30Core Viewpoint - The "Xuanji" geological rotary steering drilling system, developed by CNOOC Services, represents a significant technological advancement in China's oil and gas exploration and production, providing essential support for increasing reserves and production [1][3][7]. Group 1: Technological Advancements - The "Xuanji" system has achieved industrial application in China, marking a milestone in high-end drilling technology for oil and gas exploration [1]. - The system has a 90% application rate in offshore oil and gas exploration, demonstrating its critical role in the industry [1]. - CNOOC Services has successfully developed over 20 key technologies, making China the second country in the world to possess this technology [3]. Group 2: Performance Metrics - The "Xuanji" system has improved the average oil and gas reservoir encounter rate to 92%, with an overall first-time success rate exceeding 95% [3]. - In a recent operation in Bohai Oilfield, the system achieved a drilling speed increase of 6%, with a sandstone encounter rate of 100% and production reaching 150% of the design capacity [4]. - The system has completed 2660 operations globally, with a cumulative footage of nearly 250.44 million meters, showcasing its effectiveness in challenging geological conditions [6]. Group 3: Economic and Social Impact - The application of the "Xuanji" system has led to a decrease in service prices from foreign oil service providers, enhancing China's competitiveness in high-end drilling equipment [4]. - The project has established a collaborative development network integrating production, learning, research, and application, promoting domestic research and breakthroughs in related fields [4]. - The "Xuanji" system has been recognized internationally, particularly in Belt and Road Initiative countries, enhancing China's reputation in global oil and gas exploration [6].