Home – Home – Jornals – Russian Geology and Geophysics 2002 number 9

The paper addresses modeling of sandstone as a mixture of sand grains with predetermined size distribution, modal diameter, and sorting coefficient of grains and content of fine-grained (viscous) component. Sandstone is considered a granular medium whose properties are analyzed in terms of controlling processes and modeling suitability. The behavior of grain contacts is the most difficult point of modeling.
The suggested 2D (sheet) model simulates a medium containing a layer of fluid-saturated sandstone. The model includes acoustic and filtration properties of grain contacts with flat surfaces. Vacuum fluid saturation may account for various types of natural settings, namely, oil plus bound water (oil reservoir), gas plus bound water (gas reservoir), and water alone (water reservoir).