低渗透变形介质砂岩油藏水平井产能研究

Science Technology and Engineering(2013)

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Abstract
基于椭圆流模型获得了考虑启动压力梯度和介质变形条件下的水平井产能方程,并对水平井产能进行了参数敏感性分析。介质变形系数、启动压力梯度以及生产压差等因素对水平井产能有重大影响。实例计算结果表明:介质变形系数或启动压力梯度越大,水平井产能越低;由于介质变形效应的存在,随着生产压差的增加,水平井产能不再直线上升而呈现非线性变化,介质变形系数越大,非线性变化越强。
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elliptic flow model threshold pressure gradient media deformation factor horizontal well nonlinear
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