基于解的相似结构的双渗油藏渗流问题  

The Seepage Problem in Dual-permeability Media Reservoir Based on Similar Structure of Solution

作　　者：李全勇[1] 李顺初[1] 李伟[2] 肖绪霞[1] 

机构地区：[1]西华大学应用数学研究所,四川成都610039 [2]西南石油大学油气藏地质与开发工程国家重点实验室,四川成都610500

出　　处：《西华大学学报（自然科学版）》2011年第2期64-66,共3页Journal of Xihua University:Natural Science Edition

基　　金：国家科技重大专项项目(2008ZX50443-14);西华大学重点学科-应用数学(XZD0910-09-1);西华大学研究生创新基金(YCJJ2009-16)

摘　　要：针对双渗介质油藏,建立了考虑有效井筒半径和井筒储集效应的试井分析模型。利用拉普拉斯变换,在拉普拉斯空间中得到了储层压力和井底压力的无因次表达式;又根据相似结构理论,发现在不同外边界条件下的解式具有统一的结构。Aiming at dual-permeability media reservoir,a model for non-linear seepage of dual-porosity media reservoir was established in this paper.In the model,the effective wellbore radius and well bore storage is taken into consideration in the case of variable flow rate.By using Laplace transform,the nondimensional expressions of reservoir pressure and bottom hole pressure are obtained in Laplace space.And it is found that there is a similar structure among the expressions of solution under different outer boundaries.

关 键 词：双渗油藏 有效井筒半径 变流率 相似结构 核函数 

分 类 号：TE132.1[石油与天然气工程—油气勘探]