A Growth Model for Porous Sedimentary Rocks
Sujata Tarafdar, Shashwati Roy (CMPRC, Physics Dept., Jadavpur, University, Calcutta, India)
TL;DR
This paper introduces a computer simulation model for porous sedimentary rocks, analyzing how particle size distribution affects porosity, surface area, permeability, and the fractal characteristics of pore space.
Contribution
It presents a novel simulation approach using ballistic deposition with bimodal particle sizes to model pore structures and properties of sedimentary rocks.
Findings
Porosity varies with the proportion of small and large particles.
Permeability correlates with porosity in the simulated structures.
The pore space exhibits fractal characteristics.
Abstract
A growth model for porous sedimentary rocks is proposed, using a simple computer simulation algorithm. We generate the structure by ballistic deposition of particles with a bimodal size distribution. Porosity and specific surface area are calculated varying the proportion of small and larger particles. Permeability and its variation with porosity are studied. The fractal nature of the pore space is also discussed.
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