ABSTRACT

INTRODUCTION

This paper presents a numerical approach to describe the time-dependent strain-softening and dilation behavior of rook salt. A primary objective is to develop a numerical model to assess the long-term stability of underground structures in a wide range of brittle-ductile media. Rook salt is analyzed here as an example. A strength deterioration function and a volumetric dilation function have been derived and implemented into an existing non-linear time-dependent finite element code. The mechanical behavior of the laboratory test samples of salt are simulated.

Keywords:
Reservoir Characterization, reservoir simulation, Upstream Oil & Gas, Mean stress, stress-strain relation, shear strain, rock salt, calibration, numerical simulation, prediction
Subjects:
Reservoir Characterization, Reservoir Simulation, Information Management and Systems
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1993. Geological Engineering Program, UW-Madison. Permission to Distribute - American Rock Mechanics Association
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