Core Viewpoint - Zhao Zengquan, a skilled technician at China National Petroleum Corporation, has made significant contributions to the oil and gas industry through innovation and technical expertise, earning him the title of "National Labor Model" from the All-China Federation of Trade Unions [1] Group 1: Professional Journey - Zhao Zengquan graduated from Daqing Oilfield Technical School in 1994 and began his career in the Bohai Bay oil fields, where he faced initial challenges but persevered through practical training and extensive note-taking [2] - In 2000, he successfully optimized the high-speed milling process for bridge plugs in Sudan, reducing the milling cycle from a traditional lengthy duration to just 6.8 hours, showcasing his problem-solving skills under pressure [2] Group 2: Technical Innovations - Zhao developed a unique throttle positioning system that allowed new operators to control throttle errors within 2 millimeters, saving the company 400,000 yuan annually in diesel costs [5] - He created a new anti-torque tool for wellhead operations, reducing drilling time from 20 hours to 8 hours, thus enhancing both safety and efficiency [5] - Zhao's innovations include a smart well operation system that decreased well control response time from 3 minutes to 0.5 seconds, significantly improving safety measures [5] Group 3: Knowledge Sharing and Mentorship - Zhao has dedicated himself to training the next generation of technicians, authoring a comprehensive training manual and establishing a three-dimensional training model that combines theory, practice, and innovation [7] - His efforts have resulted in the cultivation of 169 apprentices, with 85 becoming technical backbones in the industry, and the establishment of multiple sub-studios to further disseminate knowledge [7] - Zhao emphasizes the importance of passing on the spirit of craftsmanship and innovation within the oil industry, aiming to inspire future generations to tackle challenges with creativity [7]

Core Insights - Zhao Zengquan, a chief technician at China National Petroleum Corporation, has developed innovative tools to address challenges in oil extraction and pipe maintenance, significantly improving operational efficiency [2][3][5] - The "pumpable recyclable casing inner wall rust removal tool" and "turbine negative pressure local reverse circulation milling tool" are key inventions that have enhanced the safety and efficiency of oil well operations [2][3][4] Group 1: Innovations and Tools - The "pumpable recyclable casing inner wall rust removal tool" utilizes a closed-loop system to remove rust from oil pipes, achieving a 75% increase in efficiency and a 50% reduction in labor input compared to traditional methods [3][5] - The "turbine negative pressure local reverse circulation milling tool" improves the removal of debris and blockages in complex wells, achieving a 100% success rate in field applications and saving over 6 million yuan per single well maintenance [5][4] Group 2: Industry Challenges - Rust on oil pipes has been identified as a major cause of accidents in oil extraction, accounting for over 60% of engineering incident triggers [2][3] - Traditional rust removal methods are labor-intensive and inefficient, leading to safety risks and operational delays [2][3] Group 3: Achievements and Recognition - Zhao Zengquan has led a team that has obtained 39 national invention patents and 49 utility model patents, addressing 109 production challenges since the establishment of the expert studio in 2018 [5][6] - In 2025, Zhao was recognized as a national labor model for his contributions to the industry [2]