Abstract
China’s petroleum resources are mainly continental facies with high petroleum density. Due to high heterogeneity, mining by traditional methods is not effective, and nearly half of the resources are not developed. The onshore oil fields that have been developed in Daqing area; Liaohe, Shengli and other large oil fields have entered high water cut stage, but there are still a lot of problems such as scattered remaining oil distribution, flooded reservoir, low recovery factor, reduced production and poor economic benefits. Based on this, this paper mainly analyzes the related technical measures to enhance oil recovery in the ultra-high water cut period.
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