摘要
关于悬浮物固相侵入造成的地层伤害,研究人员做了大量的工作,并在文献上发表了一些模型的建立方法。但是没有对地层中渗透率的具体情况作详细研究。文中介绍了一个以颗粒通过多孔介质的物质平衡为基础的数学模型,采用有限差分法求解,编制计算机软件,将渗透率在不同污染距离和时间的结果描绘出来,并作了一些详细研究。这对研究污染状况和后面要采取的酸化等解堵措施提供了更好的条件。
Formation damage caused by the invasion of solid suspensions has been studied by several investigators and some modeling approaches have also been reported in the literature.However,these approaches just get some general values of permeability.The distributing situation of permeability has not been studied by these investigators.This paper presents a mathematical model,which is based on mass balance of particles flowing through the porous media.By use of mathematical modeling means,the relation between the length of formation damage and permeability was studied and comprehensively analyzed,thus providing basis for plug removal.
出处
《断块油气田》
CAS
2006年第4期41-42,共2页
Fault-Block Oil & Gas Field
关键词
数值模拟
渗透率
地层伤害
悬浮液
Mathematical model,Formation damage,Permeability,Solid suspensions.
