Innovation and application of integrated management mechanism of chemical flooding in extra-high water cut sandstone oilfield

Abstract Daqing oilfield chemical flooding technology is mature and matching, enhanced oil recovery, strongly support the development of oil fields, in order to ensure the national strategic security of energy plays a pivotal role. Since the 13th five-year plan, aiming at the problems of poor quality reservoir condition, poor development benefit and increasing difficulty of stable production, the target of high-efficiency development has been set, innovative Management mode, the construction of “Key research, continuous improvement, promotion and application” closely linked to the new mechanism of integrated scientific research and production management; A new dynamic management mechanism of chemical flooding development is established, and a new management model of injection system is established. Since 2016, the development efficiency of chemical flooding has improved markedly, with annual oil production remaining stable at over 10 million tons and an additional 2.55 million tons of oil production. The tonnage of polymer-enhanced oil has increased from 47.4 tons to 57.2 tons, saving 126,000 tons of polymer and generating 5.503 billion yuan in economic benefits, Daqing Field has made important contributions to the revitalization and development of the country in the new era and ensuring national energy security.