河流相储层层内非均质表征程度对水淹规律的影响  

The Effect of Heterogeneity Characterization on Water-out Rules in Fluvial Reservoir

作　　者：甯波[1] 贾爱林[1] 彭缓缓[1] 蒋俊超[1] 刘辉[1] 许家峰 

机构地区：[1]中国石油勘探开发研究院鄂尔多斯分院,北京100083 [2]中海油研究总院,北京100027

出　　处：《石油天然气学报》2014年第2期114-119,8,共6页Journal of Oil and Gas Technology

摘　　要：河流相储层平面及纵向物性变化均较快，层内非均质性严重影响了垂向水淹规律。通过建立精细数值模型，量化表征了储层内部韵律性、夹层分布特征及注采井网类型对水淹规律的影响。测试及精细数值模拟结果表明，不同储层组合形式下，水淹程度可达到15％～60％，垂向表征厚度对单井水淹规律影响较大，最高相对误差可达120％，且漏斗型储层物性夹层区域垂向表征厚度不宜大于0．4m，研究成果为油田生产井开发指标的确定及开发调整方案的编制提供了理论参考。In fluvial reservoirs plane and vertical changes were faster.The intralayer heterogeneity characteristics of fluvial reservoir severely affected the vertical water-out rules.Based on the fine numerical model,the effect of water out characterization on rhythm,sandwich distribution and well pattern on water-out rules were quantified.The test and simulation results show that the water-out level can reach 15%~60% under different reservoir conditions.There is a big influence on water-out rules for different vertical simulation thickness with the biggest relative error of 120%,especially for reverse rhythm reservoir,the vertical simulation thickness should be smaller than 0.4min funnel sandwich region.The research result provides a theoretical reference for determining production index and production plan for oilfield development.

关 键 词：河流相储层 层内非均质 层内韵律性 夹层分布特征 注采井网类型 水淹规律 精细数值模拟 

分 类 号：P618.13[天文地球—矿床学]