【摘要】 现场示踪剂监测周期大多为150～360d,不能准确判断监测周期之后注入水波及范围,并且对研究区两套油层分别优势注水方向、推进速度和判断油井来水方向(注水井或边水)等问题不能有效解决。介绍示踪剂模拟技术,并充分考虑示踪流体扩散、弥散现象的影响,在动态历史拟合、示踪流体已监测分析结果拟合基础上,对注水井水驱前缘及边水推进进行分析研究。结果表明:示踪剂模拟结果与现场示踪剂已监测情况基本吻合,可以利用数值模型对区块进行更长周期监测,弥补了实测过程中施工复杂、监测周期耗时等缺点;通过模型运算得出注水井水驱前缘状况、注入水波及范围、推进速度及优势注水方向,进一步对油藏两套油层注采渗流规律进行评价预测。更多还原

【Abstract】 The cycle of field tracer monitoring is about 150-360 days.Therefore it should not identify water-flood swept area after the cycle of tracer monitoring.And it fails to effectively solve these problems that preferable water-injection direction and advancing speed of two sets of oil layers and the identification of the direction of water (injection-water or edge-water).Introducing the tracer simulation technology,and giving full consideration to the impact of the phenomenon of tracer fluid mass,based on historical performance match and the monitor result match of tracer fluid,water-flooding front and edge-water advancing were studied.The results show that tracer simulation results is basically consistent with the field tracer monitoring results.Numerical model can be used to conduct a longer period monitoring to compensate for the disadvantage of the complex of construction and time-consuming monitoring cycle,and so on.The water-flooding front,water-flood swept area,advancing speed and the preferable water injection direction can be simulated with numerical model,further to evaluate and predict the injection-production flow laws of two sets of reservoirs,it can provide reliable foundation to deploy reasonable flood pattern,to develop remain oil and ultimately enhance oil recovery.更多还原