Core Insights - China National Petroleum Corporation (CNPC) has successfully operated its first domestically produced 100,000 cubic meter high-pressure injection compressor for carbon capture, utilization, and storage (CCUS) in Jilin Oilfield for over 10,000 hours as of December 3 [1] Group 1: CCUS Technology Development - The core of CCUS technology involves injecting captured carbon dioxide underground for oil recovery and storage [1] - The first domestic supercritical carbon dioxide injection station, He 46, was established by CNPC in Jilin Oilfield in 2014, but it relied on imported high-pressure injection compressors, which posed challenges for large-scale industrialization [1] - The annual cost of imported valve materials reached 800,000 yuan, and long procurement cycles hindered operational continuity and economic efficiency [1] Group 2: Domestic Innovation and Cost Savings - CNPC initiated independent research and development to address the reliance on imported components, starting with the valve, a critical and easily worn part of the compressor [1] - After numerous trials, the team successfully modified the valve, extending its replacement cycle from one month to over three months, increasing the compressor's processing capacity to 115% of its rated output, and saving over 1 million yuan in annual electricity costs [1] - The team also optimized the lubrication process of the compressor, reducing the oil drop rate from one drop every 13 seconds to every 18 seconds, resulting in an annual savings of 450,000 yuan [2] Group 3: Achievements in Domestic Equipment Manufacturing - In 2023, Jilin Oilfield completed the industrial trial and official operation of the first domestically developed supercritical carbon dioxide injection compressor unit in collaboration with domestic equipment manufacturers [2] - Building on previous successes, Jilin Oilfield has developed Asia's first full-chain CCUS engineering dedicated compressor unit and the first domestic carbon dioxide water-gas co-injection device, achieving an accuracy rate of over 95% in dual medium measurement [2]