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Computation of elastic properties of 3D digital cores from the Longmaxi shale

文献类型：期刊论文

作者Zhang Wen-Hui1,2; Fu Li-Yun2; Zhang Yan2; Jin Wei-Jun2
刊名APPLIED GEOPHYSICS
出版日期2016-06-01
卷号13期号:2页码:364-374
关键词Longmaxi black shale 3D digital cores elastic properties finite-element method
DOI10.1007/s11770-016-0542-4
文献子类Article
英文摘要The dependence of elastic moduli of shales on the mineralogy and microstructure of shales is important for the prediction of sweet spots and shale gas production. Based on 3D digital images of the microstructure of Longmaxi black shale samples using X-ray CT, we built detailed 3D digital images of cores with porosity properties and mineral contents. Next, we used finite-element (FE) methods to derive the elastic properties of the samples. The FE method can accurately model the shale mineralogy. Particular attention is paid to the derived elastic properties and their dependence on porosity and kerogen. The elastic moduli generally decrease with increasing porosity and kerogen, and there is a critical porosity (0.75) and kerogen content (ca. a parts per thousand currency sign3%) over which the elastic moduli decrease rapidly and slowly, respectively. The derived elastic moduli of gas- and oil-saturated digital cores differ little probably because of the low porosity (4.5%) of the Longmaxi black shale. Clearly, the numerical experiments demonstrated the feasibility of combining microstructure images of shale samples with elastic moduli calculations to predict shale properties.
WOS关键词MISSISSIPPIAN BARNETT SHALE ; NUMERICAL-SIMULATION ; BASIN ; COMPOSITES ; MUDSTONES
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000379578300014
资助机构Chinese Academy of Sciences(XDB10010400) ; Chinese Academy of Sciences(XDB10010400) ; China Postdoctoral Science Foundation(2015M570142) ; China Postdoctoral Science Foundation(2015M570142) ; Chinese Academy of Sciences(XDB10010400) ; Chinese Academy of Sciences(XDB10010400) ; China Postdoctoral Science Foundation(2015M570142) ; China Postdoctoral Science Foundation(2015M570142)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53393]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhang Wen-Hui,Fu Li-Yun,Zhang Yan,et al. Computation of elastic properties of 3D digital cores from the Longmaxi shale[J]. APPLIED GEOPHYSICS,2016,13(2):364-374.
APA Zhang Wen-Hui,Fu Li-Yun,Zhang Yan,&Jin Wei-Jun.(2016).Computation of elastic properties of 3D digital cores from the Longmaxi shale.APPLIED GEOPHYSICS,13(2),364-374.
MLA Zhang Wen-Hui,et al."Computation of elastic properties of 3D digital cores from the Longmaxi shale".APPLIED GEOPHYSICS 13.2(2016):364-374.

入库方式： OAI收割

来源：地质与地球物理研究所

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