Shuai Heng

In-situ microwave heating-assisted coalbed methane extraction using hybrid photovoltaic-wind power: Performance analysis and system optimization

Guoying Wang, Xingyu Liu, Housheng Jia, Gan Feng et autres

This paper proposes a novel in-situ microwave heating technology for coalbed methane extraction integrated with a photovoltaic-wind hybrid microgrid, aiming to reduce the energy consumption and environmental impact associated with conventional mining methods. A multi-physics mathematical model encompassing electromagnetic fields, heat transfer, …

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Experimental Study on Anisotropic Pore-Fracture and Real-Time Permeability Evolution of Fractured Oil Shale Under High Temperature and Triaxial Stress: A Case Study of Jimsar Oil Shale in Xinjiang, China

Guoying Wang, Qin Yin, Housheng Jia, Gan Feng et autres

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Effects of normal stress on shear properties and acoustic emission characteristics of bonded rock-concrete interfaces

Yan Chen, Jiangfan Yang, Jintao Wang, Shuai Heng et autres

Direct laboratory shear tests, accompanied by acoustic emission (AE) monitoring, were performed to examine the influence of normal stress (ranging from 4 to 16 MPa) on the shear behavior and acoustic emission characteristics of bonded granite-concrete interfaces. The findings indicate that an …

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A new technical approach for real-time tensile strength testing of high-temperature granite based on micro-tensile testing technology

Xianzhong Li, Ya Tian, Zhenhua Li, Shuai Heng et autres

The tensile strength of rocks under real-time high-temperatures is essential for enhanced geothermal system development. However, the complex occurrence and deep burial of hot dry rocks limit the quantity and quality of standard samples for mechanical testing. This paper compared the tensile …

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Experimental and theoretical study on the competitive initiation of tensile cracks in shale under different loading modes

Shuai Heng, Hongyu Liu, Chenxing Wang, Wen Wang et autres

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Experimental study on the anisotropic fracture characteristics of shale under different loading modes

Shuai Heng, Dianyue Cao, Xianzhong Li, Hongyu Liu et autres

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Simulation of Coal-water Mixture Transportation in A Horizontal Pipeline

Shuai Heng, Q WANG, Zhenfeng Wang, Zhiqiang Bai et autres

In order to solve the problem of selecting the model of conveying pump and the inner diameter of conveying pipeline in the process of underground coal-water mixture conveying, and to realize the best conveying effect of coal-water mixture. In this paper, the …

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Experimental Research into the Initiation and Propagation of Hydraulic Fractures in Coal Combinations with Different Strengths

Xiaoming Ni, Xiaolei Liu, Shuai Heng

The fracture initiation location and expansion mode are important indexes to evaluate the fracturing effect during the hydraulic fracturing of a coal seam. However, the initiation location and propagation of hydraulic fractures in different-strength coal assemblages are still unclear. For this reason, …

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Failure characteristics and crack propagation process of coal-rock combinations under mine-induced stress

Xianzhong Li, Jinhao Zhang, Zhenhua Li, Shuai Heng et autres

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[[Equation]] In-Situ Microwave Heating-Assisted Coalbed Methane Extraction Using Hybrid Photovoltaic-Wind Power: Performance Analysis and System Optimization

Guoying Wang, Xingyu Liu, Housheng Jia, Lei Wang et autres

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In-Situ Microwave Heating-Assisted Coalbed Methane Extraction Using Hybrid Photovoltaic-Wind Power: Performance Analysis and System Optimization

Guoying Wang, Xingyu Liu, Housheng Jia, Gan Feng et autres

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Cross-interface propagation behavior of tension cracks during Brazilian experiments of coal–concrete bi-materials with different cementation strengths

Xianzhong Li, Tom Wu, Zhenhua Li, Shuai Heng et autres

Understanding the cross-interface propagation behavior of tension cracks during hydraulic fracturing in coalbed methane exploitation involving multiple coal seams is crucial for enhancing fracturing efficiency. This study investigated the propagation behavior of cracks at the coal–concrete interface under varying interface conditions through …

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