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通过对示踪剂产出曲线的数值分析 ,即可求得任意时刻的剩余油饱和度分布 ,从而对油藏进行精细描述 ,为油田开发生产提供指导。卫 95块油田是一个极复杂的断块油田 ,经过十几年的注水开发 ,层间矛盾越来越突出 ,水驱动用程度低 ,油藏中剩余油潜力大 ,应用井间示踪剂测试技术的目的就在于摸清卫 95 12 7井组地下剩余油的大小及分布状况 ,从而确定挖潜的主攻方向。结果表明 ,低渗层剩余油饱和度较高 ,主要集中在井组西部 ,大小为 56 %左右 ,而高渗层剩余油饱和度较低 ,主要集中在井组西南部 ,大小约 4 9% ,分析结果与现场实际情况较为吻合。
Through the numerical analysis of the tracer output curve, the remaining oil saturation distribution can be obtained at any time, which can provide a detailed description of the reservoir and provide guidance for oilfield development and production. Wei 95 oilfield is a very complicated fault block oilfield. After more than ten years of water injection development, the contradiction between layers has become more and more prominent. The degree of water-driven use is low, and the potential for remaining oil in the reservoir is large. Tracer testing between wells The purpose of technology is to find out the size and distribution of remaining oil in Wei 95 12 7 well group so as to determine the main direction of tapping potential. The results show that the residual oil saturation in the low permeability zone is high, mainly in the west part of the well group, with a size of about 56%, while the remaining oil saturation in the high permeability zone is low, mainly in the southwestern part of the well group with a size of about 49% The analysis result is in good agreement with the actual situation in the field.