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FINITE ELEMENT ANALYSIS OF LAND SUBSIDENCEABOVE DEPLETED RESERVOIRS WITH PORE PRESSURE GRADIENTAND TOTAL STRESS FORMULATIONS (2001)

Land subsidence above depleted gas/oilfields can be addressed by the FE method using either thepore pressure gradient formulation or the total stress formulation. A modification to both formulations is suggested which allows to correctly solve the problem of a finite reservoir with an infite pressure gradient, i.e. with a pore pressure discontinuity on its boundary.
Reference:
"INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
Int. J. Numer. Anal. Meth. Geomech., 2001; 25:307}327"
Organization:
Department of Mathematical Methods and Models for Scientixc Applications, University of Padova
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