WEBJun 16, 2020 · A petrographic coal structure of Late Permian coals from the Liupanshui coalfield, Western Guizhou, SW China, has been distinguished for its novel macrolithological characteristics. Petrographic, mineralogical and geochemical studies have been conducted for a typical coal sample ( coal, Songhe coalmine, Panzhou County, .
WEBMar 20, 2011 · Image processing based characterisation of coal cleat networks. ... Secondly, a CT image preprocessing methodical approach was developed. Furthermore, this paper proposed the gray level threshold ...
WEBJun 1, 2018 · Based on the scanning at two scales, the detail structures of coal samples are reconstructed with the image processing technique, which realizes the multiscale qualitative and quantitative ...
WEB2017. TLDR. A characterisation framework is developed to determine if the developedDFN models can preserve the topological properties of the coal cleat network found in microCT data and it is concluded that the topology of the DFN models are closer to that of the realistic cleat networks that do not have segmentationinduced pores. Expand.
WEBImage processing based characterisation of coal cleat networks ... modelling in the context of underground coal mining. Cleat and cleat network geometry can be described as a function of frequency ...
WEBJun 1, 2012 · The potential of a new procedure of image processing for the characterization of a given combustion state through flame visualization is here presented and discussed. Experimental tests were carried out in a swirlstabilized, semiindustrial scale burner of 500 kW th. Using an advanced vision based system, flame images have .
WEBAug 1, 2020 · During image processing, 1D line scanning and 2D plane analysis are usually conducted to obtain the morphological parameters of microfractures, such as aperture size, length, height, spacing, and density. ... Image processing based characterisation of coal cleat networks. Int. J. Coal Geol. (2017) Q. Cheng et al. The .
WEBMay 1, 2023 · Characterisation of the cleat network serves as the basis for estimating the hydraulic and mechanical seam properties which in turn are fundamental for flow and geomechanical modelling in the ...
WEBMar 1, 2019 · In this study, the fracture pattern is described by a Sierpinski carpet, which is a plane fractal that contains a selfsimilar geometric pattern of holes. This specific fractal pattern has been ...
WEBJul 8, 2020 · Image processing based characterisation of coal cleat networks ... Characterisation of the cleat network serves as the basis for estimating the hydraulic and mechanical seam properties which in ...
WEBAug 27, 2017 · Coal characteristics analysed in this paper include cleat geometry, topology of cleat network, degree of mineralisation, and roughness of cleat surfaces. MicroCT scanning procedures to obtain ...
WEBMay 1, 2022 · A 3D digital coal model with macropores (> μm) was constructed by using μCT scanning combined with Avizo image processing, and the equivalent pore network model (PNM) was extracted to ...
WEBAug 1, 2020 · Semantic Scholar extracted view of "Quantitative characterization of fracture structure in coal based on image processing and multifractal theory" by Chen Guoxi et al.
WEBOct 1, 2018 · Image processing based characterization of coal cleat networks Int. J. Coal Geol., 169 ( 2017 ), pp. 1 21 View PDF View article View in Scopus Google Scholar
WEBNov 1, 2017 · Based on image processing technology and digital core modelling, a threedimensional shale digital core model was established. ... characterization of coal microstructure and associated coal ...
WEBMar 1, 2017 · A characterisation framework is developed to determine if the developedDFN models can preserve the topological properties of the coal cleat network found in microCT data and it is concluded that the topology of the DFN models are closer to that of the realistic cleat networks that do not have segmentationinduced pores. .
WEBDOI: / Corpus ID: ; Quantitative characterization of fracture structure in coal based on image processing and multifractal theory article{Guoxi2020QuantitativeCO, title={Quantitative characterization of fracture structure in coal based on image processing and multifractal theory}, author={Chen .
WEBImage processing based characterisation of coal cleat networks ... seam properties which in turn are fundamental for flow and geomechanical modelling in the context of underground coal mining ...
WEBOct 15, 2019 · Appliion of imagebased diffusion coefficients in multiscale simulation of coalbed methane reservoirs ... Cleatscale characterisation of coal: An overview. Journal of Natural Gas Science and Engineering, Volume 39, 2017, pp. 143160 ... Porescale analysis of coal cleat network evolution through liquid nitrogen treatment: A Micro .
WEBAug 27, 2021 · Abstract Accurate characterization of the initiation of hydraulic fractures is crucial for understanding the formation of multiple hydraulic fracture networks in coal seams in coalbed methane extraction and disaster prevention. To this end, hydraulic fracturing has been extensively employed in the reservoir stimulation of shale and .
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