A finite element porothermoelastic model for dual‐porosity media
A finite element porothermoelastic model for dual‐porosity media
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DOI：
10.1002/nag.336
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发表时间：
2004-08
影响因子：
4
通讯作者：
R. Nair;Y. Abousleiman;M. Zaman
中科院分区：
文献类型：
--
作者：
R. Nair;Y. Abousleiman;M. Zaman
现有的双孔隙有限元模型已扩展到包括两种介质中的热-水-机械耦合。该模型依赖于流体和固体域的重叠的不同连续体。此外，使用单个代表性热力学连续体合并传导和对流热传递。该模型适用于在裂缝地层中钻探的倾斜钻孔问题，该问题受到三维应力状态以及钻井液与地层之间的温度梯度的影响。进行了敏感性分析，以研究热载荷的影响、孔隙流体流动的热传输影响以及用于代表裂缝的二次介质参数的影响。版权所有 © 2004 约翰·威利父子有限公司
An existing dual‐porosity finite element model has been extended to include thermo‐hydro‐mechanical coupling in both media. The model relies on overlapping distinct continua for the fluid and solid domains. In addition, conductive and convective heat transfers are incorporated using a single representative thermodynamics continuum. The model is applied to the problem of an inclined borehole drilled in a fractured formation subjected to a three‐dimensional state of stress and, a temperature gradient between the drilling fluid and the formation. A sensitivity analysis has been carried out to study the impact of thermal loading, effect of heat transport by pore fluid flow and, the effect of parameters of the secondary medium used to represent the fractures. Copyright © 2004 John Wiley & Sons, Ltd.