A5013049948- Coal Properties and Utilization
- Rock Mechanics and Modeling
- Hydrocarbon exploration and reservoir analysis
- Geoscience and Mining Technology
- Geomechanics and Mining Engineering
- Grouting, Rheology, and Soil Mechanics
- NMR spectroscopy and applications
- FinTech, Crowdfunding, Digital Finance
- Coal and Its By-products
- Land Use and Ecosystem Services
- Drilling and Well Engineering
- Methane Hydrates and Related Phenomena
- Granular flow and fluidized beds
- Geotechnical Engineering and Soil Stabilization
- Civil and Geotechnical Engineering Research
- Hydraulic Fracturing and Reservoir Analysis
- Diamond and Carbon-based Materials Research
- Environmental Impact and Sustainability
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- Energy, Environment, Economic Growth
- Tunneling and Rock Mechanics
- Advanced materials and composites
- Geotechnical and Geomechanical Engineering
China University of Mining and Technology
2019-2023
Renmin University of China
2022
Coal deformation is closely correlated with the distribution of organic maceral groups, however, molecular dynamics (MD) simulations vitrinite nanoindentation have rarely been conducted. In this study, substrate for indentation was constructed utilizing polymer consistent force field (PCFF), and a spherical ghost indenter used loading. The results showed that: 1) process, some atoms overcame energy barrier to move, most important mechanism including sliding, bending, reorientation chains,...
The pores in coal are the primary storage sites of coalbed methane (CBM), and temperature is critical factor affecting pore evolution during thermal evolution. This paper investigates characteristics different role related molecular structures through artificially coal. size distribution morphology unheated heated coals were detected by combining fluid injection technology image analysis. each sample semi-quantitatively analyzed X-ray diffraction Fourier transform infrared spectroscopy....
The reservoir properties of tectonically deformed coals (TDCs) differ significantly compared with their neighboring primary which are also known as unaltered or underformed coals. However, the heterogeneity nanopores in TDCs under syncline control has been seldom reported, and middle-rank level was minimally investigated to date. Thus, this paper, structures multiscale fractal characteristics controlling effect from Panguan Syncline were via high-pressure mercury injection (HPMI),...
The coal fracture and microdeformation around reverse faults have an essential impact on coalbed methane (CBM) exploitation safe mining. This paper investigates the characteristics of distributed small-scale strike fault in No. 8 seam Zhuxianzhuang Colliery, Suxian mining area. oriented samples been sampled equidistantly from surroundings near fault, micro-computed tomography (micro-CT) was adopted to acquire characteristics. These then were polished under guidance computed (CT) model reveal...
The internal mechanism of how maceral and temperature control the mechanical properties in situ coal has not been established so far. Therefore, this paper aims to discover macerals on coal. improved equipment, a heatable triaxial compressor, is applied obtain hardness elastic modulus at conditions; depth-sensing nanoindentation employed collect various temperatures. By linking above macroscopic microscopic properties, much information that was hitherto unknown found, as follows. Both adhere...
The chemical structures of tectonically deformed coal are significantly altered by stress. However, the stress response non-covalent bonds in deformation experiments and role process have not been studied yet. In this work, coals before after simulative were systematically investigated to uncover coal’s mechanism variation bonds. results indicate that differential temperature can promote ductile while confine pressure hinders process. Differential ranges 100–150 MPa 100–200 °C, respectively,...