A5003535786- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Geophysical Methods and Applications
- Geoscience and Mining Technology
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Advancements in Solid Oxide Fuel Cells
- Coal Properties and Utilization
- Geomechanics and Mining Engineering
- Drilling and Well Engineering
- Rock Mechanics and Modeling
- Electronic and Structural Properties of Oxides
- Methane Hydrates and Related Phenomena
- Geophysical and Geoelectrical Methods
- Magnetic and transport properties of perovskites and related materials
- Microwave Imaging and Scattering Analysis
- Image and Signal Denoising Methods
- CO2 Sequestration and Geologic Interactions
- Ultrasonics and Acoustic Wave Propagation
- Underwater Acoustics Research
- Coal and Its By-products
- Geological Modeling and Analysis
- Seismology and Earthquake Studies
- Geophysics and Sensor Technology
- Atmospheric and Environmental Gas Dynamics
China University of Mining and Technology
2016-2025
Sichuan University
2024
State Key Laboratory of Coal Resources and Safe Mining
2016-2023
China University of Mining and Technology - Beijing
2022-2023
Guilin University of Technology
2012
Hong Kong Baptist University
2010
Institute of Soil Science
2010
Heilongjiang University
2006
Xiaomi (China)
2003
The conventional arrival pick-up algorithms cannot avoid the manual modification of parameters for simultaneous identification multiple events under different signal-to-noise ratios (SNRs). Therefore, in order to automatically obtain arrivals with high precision SNRs, this study an algorithm was proposed which had ability pick up microseismic or acoustic emission based on deep recurrent neural networks. performed using two important steps, included a training phase and testing phase. process...
It has been well reported that earthquakes can cause changes in groundwater chemistry and isotopes, much of those were occurred wells or hot springs; however, cold spring caused by local small have received less attention. Here, we collected continuous monitoring the X10 (September 2018 to December 2019), investigated hydrogeochemical characteristics using water analysis isotope methods. We compared chemical ion concentrations hydrogen-oxygen ratios with surrounding seismic activity, results...
Abstract Carbon storage is affected by photosynthesis (P n ) and soil respiration (R s ), which have been studied extensively in natural agricultural systems. However, the effects of P R on carbon storages presence arbuscular mycorrhizal fungi (AMF) coalfields remain unclear. A field experiment was established 2014 Shendong coal mining subsidence area. The treatments comprised two inoculation levels (inoculated with or without 100 g AMF inoculums per seedlings) four plant species [wild...
Abstract A quantitative analysis of the porosity, pore size distribution, and fractal dimensions pores is significant for studying structure characteristics coal. This study utilized 12 anthracite coal samples from Sihe mining area to explore therein. Hundred randomly selected points on each sliced sample were imaged via scanning electron microscopy, a total 1200 images used analysis. The porosity analyzed digital image processing box-counting dimension methods. method characterized by...
Abstract Permeability of coal reservoirs influence the extraction gas from seams. Twelve samples were collected at an anticline and a syncline No. 3 seam in Sihe mine. Porosity, permeability, pore size, vitrinite reflectance, liquid nitrogen adsorption evaluated. Structural curvatures sample locations, distance between sampling locations nearest faults calculated based on seismic data. The influences evaluated parameters permeability analyzed. Major factors that extracted using principal...
Diffractions generated by the wavefield response of small-scale discontinuous geological bodies carry a wealth information regarding complex structures, which can be used for high-resolution imaging. However, weak amplitudes diffractions make them vulnerable to strong reflections. Thus, separating from reflections is crucial in imaging underground structures. The low-rank (LR) characteristics seismic wavefields enable LR methods diffraction extraction. traditional algorithms tend disrupt...
Fractures are the channel of oil and gas storage migration, also inducing factor mine disaster. Therefore, a detailed characterization fractures contributes to safe effective development resources. Traditional fracture prediction based on linear slip theory usually assumes that is horizontal or vertical, which not consistent with natural morphology fracture. Moreover, using approximate solutions solve weak seismic response easy cause errors, assumption single-phase media geological...
Clarifying and locating small-scale discontinuities or inhomogeneities in the subsurface, such as faults collapsed columns, plays a vital role safe coal mining because these may destroy continuity of layers result dangerous accidents. Diffractions carry key information from objects therefore can be used for high-resolution imaging. However, diffracted/scattered waves are much weaker than reflected consequently require separation before being imaged. We have developed Mahalanobis-based...
Seismic diffractions are the responses of small-scale discontinuous structures. They contain subwavelength geologic information. Thus, can be used for high-resolution imaging. The energy is generally much weaker than that reflections. Therefore, diffracted typically masked by specular reflected energy. Diffraction/reflection separation a crucial preprocessing step diffraction To resolve diffraction-separation problem, we have developed method based on multichannel singular-spectrum analysis...