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变形双重介质分形气藏非线性渗流理论模型及数值研究 被引量:8

A Nonlinear Seepage Flow Model for Deformable Double Media Fractal Gas Reservoirs
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摘要 以Warren-Root模型为基础,引入分形参数和压缩系数,考虑压力对具有分形特征的渗透率和孔隙度的影响,建立变形双重介质分形气藏渗流数学模型.应用高收敛和高精度的有限元法求解这类含有第二类边界条件的数学模型.利用压力曲线,压力导数,参数对压力的影响率详细分析了部分参数对压力的影响及在变形双重介质分形气藏渗流数学模型中所具有的独特意义. Based on the Warren-Root model, introducing fractal parameter and deformable coefficient and considering the effect of pressure on permeability and porosity, we construct a seepage flow model for pressure-sensitive deformable double media fractal gas reservoirs. A finite element method which has advantages in numerical solution of partial differences equations is used. The effect of parameters on pressure and importance in pressure-sensitive deformable double media fractal gas reservoirs are analyzed in detail.
出处 《计算物理》 CSCD 北大核心 2007年第1期90-94,共5页 Chinese Journal of Computational Physics
基金 教育部高等学校博士学科点专项科研基金(20040615004) 高等学校优秀青年教师教学科研奖励计划项目 四川省学术和技术带头人基金(2200320)资助项目
关键词 分形气藏 变形双重介质 不稳定渗流 渗流模型 有限元法 fraetal gas reservoir deformable double media unstable seepage flow seepage flow model finite element method
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