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A review on pore-fractures in tectonically deformed coals
Fuel, 2020Abstract Exploitation of coalbed methane (CBM) has dual advantages of not only providing alternative clean-energy but also effectively reducing the proneness for gas outbursts. CBM reservoir properties for tectonically deformed coals (TDCs) differ significantly in comparison to neighboring primary coals, largely attributing to their pore-fracture ...
Song Yu +4 more
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Journal of Nanoscience and Nanotechnology, 2021
Coal is a pressure-sensitive organic rock. The effect of tectonism on the structural evolution of medium-rank coal has been confirmed by the change in the crystal state of tectonic coal, but the organic molecular level response has not been reported.
Xiaobing Zhang +4 more
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Coal is a pressure-sensitive organic rock. The effect of tectonism on the structural evolution of medium-rank coal has been confirmed by the change in the crystal state of tectonic coal, but the organic molecular level response has not been reported.
Xiaobing Zhang +4 more
semanticscholar +1 more source
Coal-Producing Tectonic Environments
1992This final chapter in the investigation of coal sedimentation is concerned with depositional aspects of the highest order of magnitude, namely, the influence of the crustal setting on peat accumulation. This is a broad and complex field which draws on information gathered from many different disciplines of the earth sciences.
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Structure and coalbed methane occurrence in tectonically deformed coals
Science China Earth Sciences, 2012Research on structure of tectonically deformed coals (TDC) is a key issue in coal and gas outburst prevention and coalbed methane (CBM) exploitation. This paper presents a summary on the research progress in TDC’s structural-genetic classification, tectonic strain influence on coal microstructure, coal porosity system, coal chemical structure and ...
QuanLin Hou +6 more
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Powder Technology, 2019
To study the pore structure and fractal characteristics of pulverized intact coal and tectonic coal, proximate analysis, gas adsorption/desorption, and N2 (77K) adsorption experiments were performed. The results show that micropore, minipore and mesopore
Zhenyang Wang +5 more
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To study the pore structure and fractal characteristics of pulverized intact coal and tectonic coal, proximate analysis, gas adsorption/desorption, and N2 (77K) adsorption experiments were performed. The results show that micropore, minipore and mesopore
Zhenyang Wang +5 more
semanticscholar +1 more source
Modern tectonic stress field deeply in Xuzhou Coal Mine
Journal of Coal Science and Engineering (China), 2013By inverting fault slip data, the parameters of 12 tectonic stress tensors in the mine region can be determined. The following characteristics can be obtained for recent tectonic stress fields, which are found deep in the study region. The results show that the recent tectonic stress field mainly presents the characteristics of near NWW-SSE maximum ...
Zhen-jie Jing +3 more
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Coal Resources and Tectonic Division of Ordos Basin
Advanced Materials Research, 2013The Ordos Basin is the richest area of coal resources in China, which has an important position in China's coal resources prospecting and exploitation. Through the application of coalfield geology and geodynamics, this paper analyzes the distribution of coal resources of the Ordos Basin. It carries out the research in coalfield tectonic zoning, and the
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, 2021
In the process of tectonic evolution, a comprehensive understanding of pore structure and fractal characteristics of coals with different tectonic degrees is critical.
Wang Xiaolei +5 more
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In the process of tectonic evolution, a comprehensive understanding of pore structure and fractal characteristics of coals with different tectonic degrees is critical.
Wang Xiaolei +5 more
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Macromolecular evolution and structural defects in tectonically deformed coals
Fuel, 2019Abstract Here, the differential macromolecular evolutions and the structural defects in various TDCs (tectonically deformed coals) were profoundly investigated utilizing the 13C NMR, FTIR, Raman, and DFT (density function theory) calculations. The increasing aromatics provides evidences for advance evolution for aromatic clusters induced by dynamic ...
Yu Song, Bo Jiang, Meijun Qu
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Characterization of the Chemical Structure of Tectonically Deformed Coals
Energy & Fuels, 2017Tectonic deformation damages the macromolecular structures of coal. No evidence can be found of tectonically deformed coal (TDC) structures, in which traces of lattice defects exist. In this study, the mechanisms of ductile deformation and the evolution of the molecular structure have been investigated using coal samples collected from one thrust fault
Wu Li +5 more
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