据悉，本井地层岩性主要以灰岩与致密灰岩为主，可钻性差，同时存在易垮塌，易漏失等地质特点；此外，作业中高扭矩，高强度震动，也对"璇玑"系统提 出了不小的挑战。 图为10月16日中海油服员工在伊拉克米桑油田的维保车间内进行设备动员前的联调测试 在本次作业中，"璇玑"系统无故障稳定运行的表现也赢得了伊方的高度认可和赞赏。据悉，该系统于2020年引进伊拉克油田开发作业。 （文章来源：新华财经） 新华财经巴格达10月21日电（记者李军、阳志刚）近日，中海油服自主研发的"璇玑"地质循轨旋转导向钻探系统（以下简称"璇玑"系统）在伊拉克米桑油田 一次作业项目中钻穿17套岩性复杂的地层，实现单趟钻进尺1056米，创造伊拉克米桑油田单趟钻进尺作业新记录。 ...

Core Viewpoint - The "Xuanji" geological rotary steering drilling system developed by China National Offshore Oil Corporation (CNOOC) has achieved significant advancements in directional drilling technology, enabling precise targeting and real-time data transmission over long distances [1] Group 1: Technological Advancements - The "Xuanji" system has transmitted over 500,000 curves and exceeded 500G in total data volume, marking a leap in China's oil and gas directional drilling technology [1] - This technology, referred to as "deep earth guidance," allows for precise drilling along reservoir boundaries and targeting deep-layer objectives [1] - The system has achieved a 40-fold increase in transmission speed, reaching world-class levels [1] Group 2: Operational Achievements - The system successfully conducted remote data transmission over 9,000 kilometers from China to Uganda, hitting deep earth targets [1] - In complex geological operations exceeding 5,000 meters, the Chinese technical team remotely controlled downhole equipment in Uganda, overcoming various technical challenges [1] - The Ugandan Petroleum Authority has highly praised the performance of the "Xuanji" system [1] Group 3: Application and Expansion - The "Xuanji" system is currently being applied on a large scale across all offshore and onshore oil fields in China [1] - The technology has also been promoted to countries involved in the Belt and Road Initiative, including Indonesia and Iraq [1]

Core Insights - The "Xuanji" system developed by China National Offshore Oil Corporation (CNOOC) has achieved a significant milestone in oil and gas directional drilling technology, with over 500,000 curve transmissions and a total data volume exceeding 500G, equivalent to the data from 1,000 wells or a single well of 1 million meters [1] - This revolutionary technology allows for precise drilling towards deep targets and along reservoir boundaries, representing the highest level of drilling technology globally [1] Group 1 - The "Xuanji" system has established a real-time data transmission link from the well site to the cloud and application end, enabling high-speed communication for deep data transmission [1] - The system utilizes fluid pressure wave transmission technology to efficiently and stably transmit formation information across various media, successfully creating a communication channel over 9,000 kilometers between China and Uganda [1] - The technology team in China has improved the data transmission rate from 1bps to 40bps, achieving world-class standards and creating an end-to-end control loop from downhole instruments to decision centers [2] Group 2 - The "Xuanji" system has been applied on a large scale in important oil fields across China and has been promoted to countries involved in the Belt and Road Initiative, including Indonesia, Iraq, and Uganda [2] - The system has completed 151 operations overseas, with a cumulative drilling length of 120,000 meters, establishing a comprehensive industrial layout and global application [2] - The Ugandan Petroleum Authority has highly praised the "Xuanji" system for its capability in global systematic collaborative operations, providing strong technical support for the exploration and development of complex oil and gas fields [2]

Core Viewpoint - The "Xuanji" system developed by China National Offshore Oil Corporation (CNOOC) represents a revolutionary breakthrough in oil and gas directional drilling technology, achieving a significant milestone in data transmission and operational efficiency in deep earth exploration [1][2]. Group 1: Technological Advancements - The "Xuanji" system has established a high-speed communication channel for real-time data transmission, surpassing 500G of total data, equivalent to the data from 1,000 wells or a single well of 1 million meters [1][2]. - The system utilizes fluid pressure wave transmission technology, enabling efficient and stable transmission of geological information across various media, including turbulent fluids and atmospheric environments [2]. - The data transmission rate from well to ground has improved from 1bps to 40bps, achieving world-class standards and creating an end-to-end control loop from downhole instruments to decision centers [5]. Group 2: Operational Achievements - The "Xuanji" system successfully completed operations in Uganda, overcoming significant technical challenges such as communication interference and real-time response, ensuring efficient implementation of drilling operations [5][7]. - The system has been applied on a large scale across important oil fields in China and has expanded 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 [7]. Group 3: Industry Impact - The "Xuanji" system has been recognized for its global collaborative operational capabilities, providing strong technical support for the exploration and development of complex oil and gas fields [5][7].

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].