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利用试井资料确定油层的热物性参数 被引量:2

Determination of thermal parameters for oil reservoir using well testing data
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摘要 为了确定地层条件下油层的热物性参数,根据油田试井资料建立了生产井油层区域的导热和对流换热非稳态混合传热数学模型,确定了合理的边界条件和初始条件,计算了油层沿径向的温度分布剖面。采用复形调优法及变步长有限差分法,对目标函数进行了求解,确定了油层的综合导热系数、热扩散系数、热容量和井底产液温度等参数。将实例计算的井底产液温度与现场试井实测数据进行了比较,结果表明,两者吻合较好,能够满足工程精度的要求。 A mathematical model for unsteady heat transfer, heat conduction and convection in oil reservoir was presented. The rational boundary condition and the initial condition were determined, and the temperature profile in the radial direction of oil reservoir was obtained by this model. The optimization method and numerical inversion of well analysis data were employed to solve the objective function. The thermal properties such as comprehensive heat conductivity, thermal diffusivity,heat capacity and produced fluid temperature at bottom hole were determined. The results show that the calculated values of fluid temperature are in good agreement with the measured results in field.
出处 《石油大学学报(自然科学版)》 CSCD 北大核心 2004年第4期71-73,共3页 Journal of the University of Petroleum,China(Edition of Natural Science)
关键词 油层 试井资料 井底 生产井 油田 径向 剖面 热物性参数 对流换热 传热数学模型 heat conduction heat convection oil reservoir thermal parameter mathematical model
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参考文献1

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同被引文献24

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