曙光油田曙二区剩余油分布特征研究

Study on the Characteristics of Residual Oil Distribution in No.2 Area,Shuguang Oil Field

断块油田在高含水期开采中，对剩余油的分布研究是个重点课题。通过对曙二区高含水高采出时期的静动态分析，采用了水驱特征曲线法、物质平衡法、动态分析法和数值模拟等四种方法，互相验证，相辅相成，比较准确地确定了分区、分块、分层段的剩余油分布状态，并对剩余油在油藏平面、纵向和油层内部的分布特征进行了较为详细的探讨，为老油田综合调整、挖潜上产提供了科学依据。

The research on residual oil distribution is very important in developping fault block oilfields during high water cut stage. After analyzing the reservoir dynamic performance and static behavior of No. 2 area in Shuguang Oil Field during high water cut and high recovery percent stage,the author uses four methods (Water Drive Characteristic Curve, Material Balance,Performance Analysis and Numerical Simulation) for determining residual oil distribution of area,block and interval accurately. The characteristics of residual oil distribution inside reservoir,on horizontal plane and vertical profile are discussed in detail. These will provide the scientific basis of synthetic adjustment,tapping potential and increasing production of old oilfields.