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为了在老油田后期开发中更好地寻找剩余油 ,从油层微构造、断层及断面的封堵性出发 ,分析了微构造对剩余油分布的影响 ,确定了剩余油分布的有利地区为 :(1 )正向微构造 ,包括低部位的正向微构造 ;(2 )断层形成的微构造 ,包括断层封闭、断层夹持以及断层遮挡的非主流线区形成的微构造。D油藏的实际钻井结果表明 :通过微构造确定剩余油的富集区是一种好方法 ;断层及油层微构造是控制剩余油分布的重要因素 ;正向油层微构造和断层形成的微构造为剩余油富集区。
In order to find out the residual oil better in the later development of the old oilfield, the influence of micro-structure on the residual oil distribution is analyzed based on the micro-structure, fault and cross-section sealing of the oil layer, and the favorable area of remaining oil distribution is determined as: 1) forward micro-structure, including low-level forward micro-structure; (2) micro-structure of fault formation, including fault closure, fault clamping and fault occlusion non-mainstream line micro-structure formation. The actual drilling results of D reservoir show that it is a good method to determine the enrichment area of remaining oil through micro-structure. The faults and the micro-structure of oil layer are the important factors to control the distribution of remaining oil. The micro-structure and the micro-structure of fault formation For the remaining oil-rich area.