Results 41 to 50 of about 7,006 (165)
Hydraulic Fracturing in Porous and Fractured Rocks
, 2022 There are various methods to determine in situ stress parameters, each having its own advantages and limitations. Among the methods available, the hydraulic fracturing method is the most adopted method for in situ stress measurements because of its simplicity and reliability.
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Effect of Reservoir Compressive Stress on Rock Apparent Fracture Toughness in Hydraulic Fracturing
Applied SciencesHydraulic fracturing is the primary technology for extracting unconventional oil and gas resources. Rock apparent fracture toughness is the most critical parameter in hydraulic fracturing processes.
Guofeng Han +4 more
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Petroleum Exploration and Development, 2013 To understand the planar and three-dimensional geometry of hydraulic fractures in volcanic rocks, a hydraulic fracturing simulation experiment was conducted using the large-scale triaxial hydraulic fracturing test system in laboratory.
Lichun JIA +7 more
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Research on Crack Propagation in Hard Rock Coal via Hydraulic Fracturing
Applied SciencesHydraulic fracturing is a technique employed to weaken rock formations during hard rock excavation. This study aims to investigate the impact of hydraulic fracturing on crack propagation in rock walls and its subsequent effect on the load borne by ...
Qingguo Dong +4 more
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Improving Hard Rock Materials Cuttability by Hydraulic Fracturing at Mining Working Face
Applied SciencesDuring advancing the working face at Guojiawan Coal Mine, hard rock faults are encountered, which hinder the normal cutting of the shearer. Hydraulic fracturing is applied to pretreat the hard rock materials.
Haojie Li +8 more
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Frontiers in Earth ScienceGround hydraulic fracturing has emerged as an effective technique for mitigating strong mining pressure manifestations in longwall top coal caving (LTCC).
Xingguo Zhang +4 more
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Numerical Modeling on Hydraulic Fracturing in Coal-Rock Mass for Enhancing Gas Drainage
Advances in Civil Engineering, 2018 The mechanism of how hydraulic fracturing influences gas drainage in coal-rock mass is still not clear due to its complex mechanism. In this work, statistical distributions are firstly introduced to describe heterogeneity of coal-rock mass; a novel ...
Zhigang Yuan, Yaohua Shao
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Prediction to Time and Depth of Surrounding Rock Catastrophe
工程科学与技术, 2011 :A reasonable and feasible nonlinear way was used to analyze whether surrounding rock steady based on monitoring result. Not only was determined potential fracturing section and influenced section, but also displacement of surrounding rock where all ...
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Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesThick hard roof with high strength, large breaking step and strong mine pressure is one of the major problems in coal mine safety production. Aiming at the problems of large thickness, high strength and difficult collapse of the roof slab of Yadian Coal ...
Shuo Ren +6 more
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