西南石油大学学报（自然科学版）2016，Vol.38Issue(4)：1-8,8.DOI:10.11885/j.issn.1674-5086.2014.09.26.02
低渗透复合油藏压力动态有限元理论分析
Theoretical Analysis of Low Permeability Composite Reservoir Using Finite Element Method
摘要
Abstract
Low permeability reservoir has strong heterogeneity and poor property,and stimulation is often needed to achieve industrial productivity. Based on the heterogeneous reservoirs development practices and the relationship between added re-sistance gradient and displacement pressure gradient and mobility,a well test model of added resistance gradient of composite reservoir is established and solved by finite element method. Then the characteristic curves are gained and analyzed. The results show that differences between the composite reservoir area have a significant impact on the dynamic characteristics of the bottom hole pressure. Because of the added resistance gradient,dimensionless pressure and pressure derivative in log-log well test plot goes upward gradually,but the amplitude is lower than that of the traditional pseudo threshold pressure gradient method.关键词
低渗透储层/复合油藏/有限元方法/非线性渗流/附加阻力梯度Key words
low permeability reservoir/composite reservoir/finite element method/non-linear flow/added resistance gradient分类
能源科技引用本文复制引用
张烈辉,张芮菡,蒋和煦,孔玲,佘娟..低渗透复合油藏压力动态有限元理论分析[J].西南石油大学学报（自然科学版）,2016,38(4):1-8,8.基金项目
国家自然科学基金（51374181）。 （）
