WEBOct 3, 2019 · The formation of cleats in coal has started to occur by many mechanisms in various periods of coal, but the presence of one mayor fault and three minor faults trending NESW in the mine pit are ...
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WEBMay 1, 2019 · 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 ...
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WEBNov 9, 2015 · 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 ...
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WEBJul 1, 2020 · After a general analysis regarding the concept of coal "cleat system", its genetic origin and practical appliions to coalbed methane (CBM) commercial production and to CO2 geological ...
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WEBDec 1, 2019 · Coal permeability is known to be affected by the sorptioninduced strain. Indeed, coal swells with gas sorption and shrinks with desorption, which is likely to modify the cleat aperture and thus the permeability. Coal permeability evolution is crucially important for either Coalbed Methane production (CBM) or Carbon dioxide Capture and .
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WEBDec 13, 2019 · Request PDF | Porescale analysis of coal cleat network evolution through liquid nitrogen treatment: A MicroComputed Tomography investigation | Coalbed methane extraction suffers from low ...
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WEBMay 15, 2022 · He proposed a simplified Sierpinskilike fractal model based on μCT to further study the evolution of the porefracture network with higher measurement accuracy. Reydick et al. [46] studied the influence of HCl acidic cleat demineralization on coal permeability based on μCT, and proved that this method improves the vertical permeability.
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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 ...
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WEBApr 21, 2022 · A forwardperceptive neural network model based on a convolutional neural network and attentionbased layer structure that enhances the noise reduction capability of classical neural networks by forward perceptive design and uses pixellevel perceptual neurons to ensure that the distribution of effective pixel points is not affected during the .
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WEBDec 15, 2019 · Image processing based characterisation of coal cleat networks Int J Coal Geol, 169 ( 2017 ), pp. 1 21, / View PDF View article View in Scopus Google Scholar
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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 ...
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WEBOct 1, 2019 · Characterization of coal microstructure and the associated rock mechanical properties are of key importance for coal seam exploration, coal bed methane development, enhanced coal bed methane ...
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WEBNov 7, 2016 · Abstract. Coal seam gas is an unconventional resource for natural gas that is becoming popular due to its. environmental benefit and abundance. This paper reviews recent developments on the pore ...
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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 ...
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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
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WEBOct 1, 2015 · The coal beds that cleat network is well conductive to the connected fracture can be an improved target area for CBM production. During CBM production, a variety of flow regimes are available ...
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WEBFigure 11 Overlap of the original binary image (green) with the extracted, reconnected and grouped features (red) for a. butt cleat and b. face cleat orientation of sample E2 "Image processing based characterisation of coal cleat networks"
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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 .
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WEBFigure 13 Principle of shape parameters used in the study, a. ellipse perimeter that has the same normalized second central moment (variance) as b. the area of a binary image feature "Image processing based characterisation of coal cleat networks"
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WEBThe marked area in b is shown in Figure 8. "Image processing based characterisation of coal cleat networks" Figure 7 a. Dilated and b. eroded binary image of sample E2. ... {Image processing based characterisation of coal cleat networks}, author={Julia Busse and JeanRaynald de Dreuzy and Sergio A. G. Torres and Detlef Bringemeier and ...
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WEBApr 13, 2022 · Coal rocks often contain calcite, which has a significant effect on the mechanical properties of coal and the energy evolution during rupture damage. In this study, the mesoscale of rock is considered, and the spatial distribution of the internal structure of coal is characterized by digital image technology. Uniaxial compression .
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WEBNov 9, 2015 · Semantic Scholar extracted view of "XRay MicroComputed Tomography Imaging for Coal Characterization" by H. L. Ramandi et al. ... A threedimensional feature extractionbased method for coal cleat characterization using Xray μCT and its appliion to a Bowen Basin coal specimen ... Imagebased fracture pipe network .
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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 ...
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WEBNov 16, 2017 · Coal seam gas (CSG) is a form of unconventional natural gas extracted from coal reservoirs. Coal is an extremely complex fractured porous medium, where gas flow is mainly controlled by its natural fracture, called "cleats." Xray microcomputed tomography (microCT) has been widely applied to obtain the 3D representation of .
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