摘要
系统地介绍了裂缝介质中油 水两相运移光蚀刻物理模拟实验所采用的实验模型设计方法、应考虑的因素、模型几何参数确定、拓扑结构、模型渗透率等宏观特征参数的定量化以及流体参数的选择方法。实验结果表明 :①宽缝对窄缝具有极强的流动屏蔽作用 ,窄缝在油气运移中几乎不起作用 ;②在运移动力方向与渗透主方向垂直的情况下 ,当原油粘度达到一定数值时 。
The design methods for oil_water two?_phase migration physical experiment model with the light etched technique were introduced. The determination of the geometric parameters, topology structure and the quantitative macroscopic parameters such as permeability were discussed. The light etched model for physical simulation of two?_phase migration in fracture network was made successfully. The experiment results show that the wider fracture system has significant flow shield effect on narrow fracture system.In some cases, the migration velocity of more viscous oil is higher than that of relatively light oil, which indicates the complicate process of oil migration in fractured media.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2003年第4期44-47,共4页
Acta Petrolei Sinica
基金
国家重点基础研究发展规划"973"项目 (G1 9990 4 33)
中国石油天然气集团公司科技攻关项目"大
中型油气藏成藏定量模式研究"研究成果
关键词
裂缝介质
油气运移
光刻模型
物理实验
fractured media
oil and gas migration
light etched model
physical experiment
