Stochastic multiscale model for carbonate rocks.
A multiscale model for the diagenesis of carbonate rocks is proposed. It captures important pore scale characteristics of carbonate rocks: wide range of length scales in the pore diameters; large variability in the permeability; and strong dependence of the geometrical and transport parameters on the resolution. A pore scale microstructure of an oolithic dolostone with generic diagenetic features is successfully generated. The continuum representation of a reconstructed cubic sample of side length 2mm contains roughly 42 x 10{6} crystallites and pore diameters varying over many decades. Petrophysical parameters are computed on discretized samples of sizes up to 1000{3}. The model can be easily adapted to represent the multiscale microstructure of a wide variety of carbonate rocks.
Biswal
B
B
ICP, Universität Stuttgart, Pfaffenwaldring 27, 70569 Stuttgart, Germany.
Oren
P-E
PE
Held
R J
RJ
Bakke
S
S
Hilfer
R
R