基于相似结构的合采油藏试井分析模型的求解  

The Solution of Well Test Analysis Model Based on Similar Structure in the Multilayer Reservoir

作　　者：李科 李顺初[2] 董亚南[3] 

机构地区：[1]中石油测井有限公司青海事业部,甘肃敦煌816400 [2]西华大学应用数学研究所,四川成都610039 [3]大港油田第六采油厂,河北黄骅061100

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)

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.

关 键 词：合采油藏 有效井筒半径 变流率 核函数 相似结构 

分 类 号：TE312[石油与天然气工程—油气田开发工程]