摘要
结合哈浅1块蒸汽辅助重力驱油(SAGD)先导试验区油藏参数,提出了17种泥岩夹层分布模型。基于油藏数值模拟,讨论了不同泥岩夹层分布模型对SAGD蒸汽腔扩展和开发效果的影响。研究结果表明:夹层对上部油层具有阻碍作用;但其只阻碍物质交换、不阻碍热量传递。不同的泥岩夹层分布模型对蒸汽腔扩展影响不同,夹层渗透率、夹层面积和夹层位置对蒸汽腔扩展影响显著,夹层厚度影响效果不明显。应用回归分析的方法,建立了SAGD采出程度与夹层物性的定量表征关系。
Based on the reservoir characteristics of the SAGD pilot test area in Haqian 1 reservoir, seventeen distribution patterns of mudstone interlayer have been established, to study the effect of mudstone interlayer on SAGD steam chamber expansion and development using reservoir numerical simulation method. The research results show that the interlayer has effects on the upper reservoir, but it just hinders the material exchange instead of heat transfer. Different mudstone interlayer distribution patterns have different effects on the steam chamber expansion. The effect of the permeability, area and position of the interlayer is remarkable, except for the thickness. The rela- tionship between SAGD oil recovery and the interlayer properties has been built through regression analysis method.
出处
《科学技术与工程》
北大核心
2016年第6期59-65,共7页
Science Technology and Engineering
基金
国家科技重大专项(2016ZX05011)资助
