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A finite element porothermoelastic model for dual‐porosity media
Author(s) -
Nair R.,
Abousleiman Y.,
Zaman M.
Publication year - 2004
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.336
Subject(s) - finite element method , porous medium , borehole , mechanics , porosity , fluid dynamics , temperature gradient , drilling fluid , convection , stress (linguistics) , drilling , convective heat transfer , materials science , geology , geotechnical engineering , thermodynamics , physics , linguistics , philosophy , quantum mechanics , metallurgy
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.