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针对渤南油田义99井区储层物性差,注采井网不完善、地层能量低、停产井多、储量动用程度低、采收率低的状况,采用油藏数值模拟技术分别从层间、层内和平面三个方面研究了义99井区的剩余油分布特征。数值模拟结果表明,目前各个层剩余油的分布规律与原始储量的分布规律是一致的,即原始储量大的层位,目前剩余储量也大。剩余油富集区集中在构造高部位和低渗部位以及井网不完善区域。这对于义99井区的剩余油挖潜和提高原油采收率具有重要的指导意义。
In view of the poor reservoir property, imperfect injection well pattern, low formation energy, well shutdown, low utilization of reserves and low oil recovery in the No.99 well block of Bonan Oilfield, reservoir numerical simulation technique , In-plane and in-plane three aspects of Yi 99 well area remaining oil distribution characteristics. Numerical simulation results show that the current distribution of remaining oil in each layer is consistent with the distribution of original reserves, that is, the original reserves of large beds, the current remaining reserves are also large. The remaining oil-rich area concentrated in the structure of high and low permeability sites and imperfect areas. This is of great instructive significance for remaining oil tapping potential and enhancing oil recovery in Yi 99 area.