应用随机网络模拟技术研究微观剩余油的影响因素  

Study on influencing factors of microscopic residual oil by using random network technology

作　　者：高孝田[1] 

机构地区：[1]中国石化河南油田分公司石油勘探开发研究院,河南南阳473132

出　　处：《石油地质与工程》2010年第2期67-69,72,共4页Petroleum Geology and Engineering

摘　　要：通过用随机网络模型模拟研究油藏的微观驱替过程,在改变模型的孔、喉大小分布和调整模型的孔隙润湿比例等情况下,进行水驱油过程模拟,建立网络模型中的微观剩余油分布。在每一次模拟之后,计算剩余油饱和度和微观驱替效率,统计微观剩余油在孔径分布范围内的频率、含量。在此基础上分析孔隙网络特性对微观剩余油分布的影响。研究结果表明:水驱后微观剩余油分布主要受孔喉比、孔隙大小、润湿性,初始含油饱和度以及驱替效率等因素的影响。With the random network technology,the study on res-ervoir micro-displacement has been made. By changing the model size distribution of pore and throat,and adjusting the proportion of pore wetting,the simulation of the oil displace-ment by water has been carried out,and the distribution net-work model of microscopic residual oil has been established.After each simulation,the residual oil saturation,micro-displacement efficiency,its frequency and content in pore ap-erture distribution could be calculated and analyzed. There-fore,the influencing factors of microscopic residue oil could be known. The research results indicate: the residue oil dis-tribution after water flooding is mainly affected by pore-throat ratio,pore size,wettability,initial oil saturation and displacement oil efficiency.

关 键 词：随机网络 微观驱替 模拟 孔隙结构 微观剩余油 影响因素 

分 类 号：TE319[石油与天然气工程—油气田开发工程]