ABSTRACT

ABSTRACT: A simple numerical procedure for predicting damage and permeability in the disturbed rock zone (DRZ) is given. The empirical procedure predicts damage based on a function of stress tensor invariants. For a wide class of problems hydrologic/mechanical coupling is necessary for proper analysis. The RATDAMPER procedure incorporates dilatant volumetric strain and permeability. It has been implemented in a weakly coupled code, which combines a finite element structural code and a finite difference multi-phase fluid flow code. Using the development of inelastic volumetric strain, a value of permeability can be assigned. This flexibility allows empirical permeability functional relationships to be evaluated.

Keywords:
Upstream Oil & Gas, Mean stress, penneability, Fluid Dynamics, rock salt, laboratory, flow in porous media, total volumetric strain, dilatant volumetric strain, stress test
Subjects:
Reservoir Characterization, Reservoir Fluid Dynamics, Flow in porous media
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2000. A.A. Balkema - Permission to Distribute - American Rock Mechanics Association
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