Core Insights - Daqing Oilfield has achieved a significant milestone by surpassing an annual production of 1 million tons from chemical flooding and tertiary oil layers, marking a critical step in enhancing oil recovery in the field [1][2]. Group 1: Production Achievements - The annual production from chemical flooding and tertiary oil layers reached over 1 million tons for the first time on October 10, indicating a breakthrough in oil recovery efforts [1]. - Daqing Oilfield has established the world's largest research and production base for tertiary oil recovery after nearly 30 years of development [1][2]. Group 2: Technological Advancements - The company has focused on the "three cleans and three determinations" for chemical flooding and "four cleans and four determinations" for tertiary oil layers, leading to a systematic approach in oil recovery [2]. - The implementation of eight full lifecycle well network evolution models has allowed for precise development sequencing and scale across different blocks [2]. Group 3: Future Plans - The team plans to concentrate on developing new systems and technologies that optimize economic benefits, aiming to further enhance oil recovery from more complex geological conditions [3].