Current situation and prospect of main technology of oil production engineering in Daqing Oilfield

With the efficient exploration and development of Daqing Oilfield for more than 60 years, oil production engineering technology has been continuously developed and optimized to meet the production needs of the oilfield at different stages of development. However, as the oilfield enters the “post-reservoir, unconventional” exploration and development stage and the rapid development of new technologies such as intelligence and new energy, the oil production engineering will face unprecedented opportunities and challenges. On the basis of the development history of Daqing oilfield, this paper systematically reviews the technology series formed in different development stages, such as rapid production increase period, 5 000×10⁴ t stable production period, 4 000×10⁴ t stable production period and high-quality development period over the past 60 years, and summarizes the current development status of the main technologies in the fields of Changyuan water flooding, tertiary oil production, peripheral oilfield development, artificial lifting, workover and cleaning operations. With the goal of promoting the overall layout of the oil production engineering technology system and the comprehensive breakthrough of the core and highly dependent technologies, the overall strategy and development direction of the future oil production engineering technology development are explored and prospected.