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On March 25, 2025, good news came from Daqing Drilling: the 80012 drilling team of Western Drilling Company’s Xinjiang project department set a new record for Daqing Drilling by achieving a daily penetration depth of 1,882 meters while working on well Man Shen 7-H18 in the Tarim Oil Field. This figure surpassed the previous record of 311.2 mm set by Daqing Drilling, and the team ranked second in terms of daily penetration depth in the Fuman area. This achievement marks a new breakthrough for Daqing Drilling in terms of accelerating drilling in ultra-deep wells in the high-risk and complex strata of the Tarim region. Well Manshen 7-H18 is a highly challenging ultra-deep well with a designed depth of 8,608 meters. Faced with five major obstacles underground – high-pressure formations, high sulfur content, fractured rock layers, multiple complex strata, and the risk of wellbore instability – this team of experts was determined to overcome these technical challenges. By analyzing the actual drilling data from dozens of wells, they developed an innovative \"tailor-made strategy for each section\" approach. Through optimizing the design of the drilling tools and using a combination of pre-bent tools and micro-reaming devices, they successfully addressed the problem of controlling well deviation in ultra-deep sections ； At the boundaries of fractured strata and unconformities, the jetting rate is improved by optimizing the size of the drill bit nozzles, and wall trimming operations are intensified to ensure smooth drilling in complex stratigraphic transition zones. In particular, customized modifications have been made in terms of bit selection; a second row of tapered teeth has been added to the 19mm single-row tooth bit, which significantly enhances its ability for pressure fragmentation, high-speed cutting, and rock breaking. This results in a notable increase in mechanical drilling speed, while also reducing the risks associated with operations underground. Before construction, the project department selects experienced and highly skilled well supervisors to form a on-site team that provides strong support for the construction work. Key equipment was also upgraded, with the sand and mud removal devices in the solids control equipment replaced by mud purifiers, thereby significantly improving the drilling fluid purification capacity. During construction, strengthen production organization and management, conduct thorough reviews and summaries, and effectively improve construction efficiency. Xiang Zunlong and Wan Renwei, the deputy managers of the project department, supervised the entire process during high-risk operations, while Wang Song, the technical expert and well supervisor, ensured strict control over the technical quality of the entire well. Team leaders led the workers in taking a pre-job oath of \"safety\", aiming to enhance safety awareness among everyone. Daily inspections are carried out to verify the compliance with safety standards for equipment and facilities. During construction, a \"dual-shift inspection\" system is implemented to ensure continuous monitoring of the equipment through alternating day and night shifts; equipment status is checked every 15–30 minutes, allowing for immediate response to any abnormalities and thus ensuring the stable operation of the equipment throughout the construction process. At the same time, emergency plans for high-risk phases are strictly implemented, and joint inspections are carried out with quality, safety, and environmental supervision and testing companies to promptly identify and eliminate various potential accident risks, ensuring that construction proceeds safely and in an orderly manner. It is reported that the construction efficiency of this well has been significantly improved. The time required to erect the columns has been reduced from 6–8 minutes in the past to 4–5 minutes, with the tunneling progress in the second shift reaching 1,073 meters. Upon commencement of drilling, the mechanical drilling rate for this well reached 76.3 meters per hour, which is significantly higher than the 42.6 meters per hour recorded by adjacent wells ； On the second day of drilling, 1,882 meters were drilled, with a mechanical drilling rate of 102 meters per hour. Source: China National Petroleum News Center, March 27, 2025. At present, well Manshen 7-H18 is undergoing the second drilling phase, which not only contributes significantly to the exploration and development of the Tarim Oil Field but also provides valuable experience for subsequent drilling operations.