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提高高含水期裂碳酸盐岩潜山油藏开发效果的关键是预测剩余油的分布。在分析雁翎油田雾迷山组潜山油藏剩余油形成机理及其分布规律的基础上,对该油藏的剩余油分布潜力区作了预测。剩余油的形成与储集层的储集空间结构密切相关,剩余油的分布形式可分成微观和宏观两种,预测该油藏的剩余油主要分布在岩块油水界面以上、远离主断层关区、并问油水界面低凹区、流动屏障层完整分布部位以下以及水淹带皿类储集层区。从而为成功地进行注氮气三次采油试验提供了科学的地质依据。
The key to improve the development effectiveness of a high-water cut cleavage buried hill reservoir is to predict the remaining oil distribution. Based on the analysis of the formation mechanism and distribution of remaining oil in the Wumishan Formation buried hill in Yanling Oilfield, the remaining oil potential distribution area of the reservoir is predicted. The formation of remaining oil is closely related to the reservoir’s reservoir space structure. The remaining oil distribution can be divided into micro and macro. The remaining oil in the reservoir is mainly distributed above the rock oil-water interface and away from the main fault zone , And asked the oil-water interface low concave zone, the flow barrier layer below the complete distribution of the site and the flooded zone with a tape-like reservoir. Thus providing a scientific geological basis for the successful third injection of nitrogen injection.