Group 1 - The successful trial of China's first domestically produced 70 MPa high-pressure gas injection compressor unit marks a significant technological achievement for the company and supports the development of oil and gas resources at depths of 7000 meters [1][3] - The compressor unit was tested at the Shuangyu 132 well in the Sichuan Basin, completing 500 hours of industrial testing and achieving a cumulative water displacement of approximately 1000 cubic meters [1][3] - The project addresses long-standing technology monopolies by foreign companies and is part of China's energy strategy to develop critical core technologies for high-pressure gas injection compressors [3] Group 2 - The company focused on overcoming four major technical bottlenecks: reliability of high-pressure dynamic sealing, control of high-pressure pulsation and additional stress, lifespan of core components under high pressure and high speed, and intelligent operation and safety monitoring [3] - A rigorous verification system was established to ensure product reliability, including innovative nitrogen/natural gas modeling test methods and the construction of a leading domestic ultra-high-pressure nitrogen load testing platform [3] - The successful launch of the compressor has set a new record for the depth of gas lifting in domestic drainage and gas extraction processes, contributing to the self-reliance of high-end equipment for deep oil and gas development in China [3]