IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression
Wang, Y.1; Hou, Z. Q.1; Hu, Y. Z.2
2018-10-01
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume77Issue:20Pages:12
AbstractCrack damage evolution of shale is crucial to the hydraulic fracturing treatment and engineering stability. Although many effects have been done on the macroscopic characteristics of shale, yet the microscopic failure mechanism is not well understood. A uniaxial compressive test on black shale was conducted under topographic monitoring using in situ X-ray micro-tomography (A mu CT). A series of high-resolution reconstruction images were obtained by carrying out CT scans at six key points throughout the test to obtain the internal structure of shale sample. In addition, the CT values for the purpose of crack damage evolution in shale were identified. Clear 2D/3D CT images, CT value analysis and image segmentation analysis reveal that the sample experiences compression, damage, cracking, crack propagation, and collapse stages. Crack geometry and distribution in the shale sample is visualized by rendered CT images, and a combined tension and shear failure mode is observed from the fracture rose diagram. This work suggests that formation and propagation of fractures are influenced by the stratified structure and weak cementation medium between layers.
KeywordBlack shale Micro-tomography CT Damage evolution Failure morphology
DOI10.1007/s12665-018-7904-6
Funding OrganizationNational key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordMECHANICAL-PROPERTIES ; ROCKS ; STRENGTH ; BEHAVIOR
Language英语
Funding ProjectNational key technologies Research & Development program[2018YFC0808402] ; Fundamental Research Funds for the Central Universities[2302017FRF-TP-17-027A1] ; National Natural Science Foundation of China[41502294]
Funding OrganizationNational key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000447418700003
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/89183
Collection页岩气与地质工程院重点实验室
Corresponding AuthorWang, Y.
Affiliation1.Univ Sci & Technol Beijing, Beijing Key Lab Urban Underground Space Engn, Minist Educ HighEfficient Min & Safety Met, Key Lab,Dept Civil Engn,Sch Civil & Resource Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Wang, Y.,Hou, Z. Q.,Hu, Y. Z.. In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(20):12.
APA Wang, Y.,Hou, Z. Q.,&Hu, Y. Z..(2018).In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression.ENVIRONMENTAL EARTH SCIENCES,77(20),12.
MLA Wang, Y.,et al."In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression".ENVIRONMENTAL EARTH SCIENCES 77.20(2018):12.
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