IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
An investigation of the evolution of the internal structures and failure modes of Longmaxi shale using novel X-ray microscopy
Duan, Y. T.1,3; Li, X.1,2,3; Ranjith, P. G.4; Wu, Y. F.1,2
2020
Source PublicationJOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
ISSN0920-4105
Volume184Pages:9
AbstractAn accurate description of the evolution of the internal structure of shale during loading and fracturing is important to understand the failure mechanisms that are related to shale-gas migration. The aim of this work was to investigate and characterize the void evolution and failure of Longmaxi shale quantitatively under uniaxial tests, and analyze the relationship between the distribution of the meso-scale (voxel-scale) minerals and the failure mode. Novel X-ray microscopy combined with an in-situ microtest device was used and three groups of shale specimens were tested under uniaxial conditions with different scanning stresses. Some three-dimensional stereograms of different loading forces and an entire force-displacement curve were obtained for each in-situ test. Based on the results, an evolution of the void distribution was characterized and divided into four stages: weakened damage, linear, damage evolution and stable development, and accelerated damage development. The degree of development of the final cracks was distinguished by the crack volume, equivalent aperture width and connectivity rate. The structure evolution and failure mode of shale were described quantitatively by the void changes and the crack characteristics. Three phenomena of intergranular fracture, transgranular fracture and arrest cracks were observed at a meso-scale to explain the effect of mineral distribution on the crack pattern. These quantitative results can provide a guide for the design in shale fracturing engineering and some references for numerical analysis.
KeywordX-ray microscopy Longmaxi shale Void evolution Crack connectivity Meso-scale mineral Intergranular fracture
DOI10.1016/j.petrol.2019.106479
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
WOS KeywordPARTIALLY SATURATED SAND ; CRACKING PROCESS ; CT ; LOCALIZATION ; ROCKS
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDB10030301] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030304] ; National Natural Science Foundation of China[41227901] ; China Scholarship Council (CSC)
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Petroleum
WOS IDWOS:000501599800017
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95841
Collection页岩气与地质工程院重点实验室
Corresponding AuthorDuan, Y. T.; Li, X.
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
4.Monash Univ, Dept Civil Engn, Deep Earth Energy Lab, Bldg 60, Melbourne, Vic 3800, Australia
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Duan, Y. T.,Li, X.,Ranjith, P. G.,et al. An investigation of the evolution of the internal structures and failure modes of Longmaxi shale using novel X-ray microscopy[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,184:9.
APA Duan, Y. T.,Li, X.,Ranjith, P. G.,&Wu, Y. F..(2020).An investigation of the evolution of the internal structures and failure modes of Longmaxi shale using novel X-ray microscopy.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,184,9.
MLA Duan, Y. T.,et al."An investigation of the evolution of the internal structures and failure modes of Longmaxi shale using novel X-ray microscopy".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 184(2020):9.
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