Fractal Properties of Various Clay Minerals Obtained from SEM Images
نویسندگان
چکیده
Clay minerals significantly alter the pore size distribution (PSD) of gas hydrate-bearing sediments and sandstone reservoir rock by adding an intense amount micropores to existing intragranular space. Therefore, in present study, internal space various clay groups is investigated manually segmenting Scanning Electron Microscopy (SEM) images. We focused on kaolinite, smectite, chlorite, dissolution holes characterized their specific using fractal geometry theory parameters such as count, distribution, area, perimeter, circularity, density. Herein, properties different were extracted box counting technique introduced for each group. It was observed that presence clays complicates original PSD about 1.31-61.30 pores/100 ?m2 with sizes range 0.003-87.69 ?m2. Meanwhile, complicate 4.88-8.17 extra 0.06-119.75 The dimension ( D ) lacunarity id="M2"> L values clays’ structure fell ranges 1.51-1.85 0.18-0.99, respectively. Likewise, id="M3"> id="M4"> of, respectively, 1.63-1.65 0.56-0.62. obtained results study lay foundation developing improved models which would help better understand fluid flow, irreducible saturation, capillary pressure. These issues are significant importance quality calculating accurate producible oil gas.
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ژورنال
عنوان ژورنال: Geofluids
سال: 2021
ISSN: ['1468-8115', '1468-8123']
DOI: https://doi.org/10.1155/2021/5516444