摘要
针对合采油藏,建立了同时考虑有效井筒半径和井筒储集的试井分析模型。利用Laplace变换,在Laplace空间中得到了无因次储集层压力和井底压力的表达式,发现在外边界条件无穷大、定压、封闭时的解式之间具有统一的结构,此项理论成果对合采油藏渗流理论的研究具有深远的意义,同时给编制试井分析软件也带来极大的便利。
In this work,we establish the multilayer reservoir percolation model and take the effec-tive hole diameter and borehole storage conditions of variable flow rate into account;We obtain the expressions of dimensionless reservoir pressure and dimensionless bottom hole pressure in the Laplace space by Laplace transform,It is found that among the solutions of three outer boundary conditions what have unified structure,the result takes great convenience for programme well test analysis software and have far-reaching significance in the multilayer percolation of percolation theory.
出处
《油气井测试》
2013年第2期7-9,75,共3页
Well Testing
基金
国家科技重大专项项目(2008ZX50443-14)
西华大学应用数学重点学科资助(ZX00910-09-1)
关键词
合采油藏
有效井筒半径
变流率
核函数
相似结构
multilayer reservoir,effective hole diameter,variable flow rate,kernel function,similitude structure
