Distribution Characteristics of the Permeability in Damaged Formation
单位
(西南石油大学, 四川成都610500 )
Organization
Southw est Petroleum University, Chengdu 610500, China
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。
Abstract
Fo rm ation dam age caused by the invasion of so lid suspens ions has been stud ied by severa l investigators and som e modeling approaches have also been reported in the literature. H owever, these approaches just ge t som e genera l va lues o f pe rm eab ility. The d istr ibuting s ituation of perm eab ility has not been studied by these investig ators. This paper presen ts am athem atica lmode,l wh ich is based on m ass ba lance o f partic les flow ing through the porous m ed ia. By use o f m athem atica l m ode ling m eans, the relation betw een the length of form ation dam age and perm eab ility was studied and comprehens ive ly ana lyzed, thus prov iding basis for p lug remova .l
关键词：
数值模拟;渗透率;地层伤害;悬浮液;
Keywords:
Mathem atica l m ode,l Fo rm ation dam age, Permeability, So lid suspens ions.;
论文详情