PORE AND PERMEABILITY CHARACTERISTIC OF IGNEOUS AND SEDIMENT ROCK BY ANALYTICAL AND DIGITAL IMAGE PROCESSING

• Main Author: Lokendro M, Muhammad
• Format: Final Project
• Language: Indonesia
• Subjects: Fisika
• Online Access: https://digilib.itb.ac.id/gdl/view/41746
• Institution: Institut Teknologi Bandung

DRP method is a method that a rock sample put in a micro ct-scan. Then, the image will be produced. The image is calculated so fractal dimension, spesific surface area, porosity, pore and grain size. Pore of sediment model is formed from penetrable grains, meanwhile pore of igneous rock is in a aperture form. The purposes of this paper are to analize the relation between the parameters with porosity and characterize the igneous and sediment rock. Porosity is a ratio between pore volume with total volume. Specific surface area is a ratio between area surface with volume total sample. Structure separation is a pore size. Permeability is a fluid capability to flow into rock pore. Fractal dimesion is roughness level of a rock. Length of igneous rock crack is variated by erosion morphology operation with hexagonal type and radius from 1, 3, 5, 7, 10, 12 in 2D. Random penetrable grain model is model of pore medium based on grain that penetrated between each grain with target porosity. Method that used to calculate the spesific surface area is marching cubes method. Graphic between spesific surface area with porosity, fractal dimension with porosity, and structure separation with porosity tend to increase. Then the graphics of igneous rock are always under the graphic of sediment rock. It can happened because the pore size and uniform level of the rock. Fluid is more easier when go through igneous rock than sedimentation rock. It is caused the pore of sedimentation rock is more complex than igneous rock. Based on empiric calculation, the permeability have the highest accuration for porosity than to structure separation, surface density, and fractal dimension.