当油田开采进入中后期后,原油中的含水量会逐渐升高,这时就需要采取新的采油技术以提高对原油的开采率。大庆油田介绍二次采油技术和三次采油技术的理论原理,并讨论了新时期下将这两种采油技术相结合在高龄油井开采中的具体运用情况,以期与同行讨论。 When the oil field mining into the later period, the crude oil in the water content will gradually increase, then you need to adopt a new oil extraction technology to improve the rate of exploitation of crude oil. Daqing Oilfield introduces the theory of secondary oil recovery technology and tertiary recovery technology, and discusses the specific application of the combination of these two recovery technologies in the recovery of advanced oil wells in the new period with a view to discussing with counterparts.