The analysis of the influence of organic content on the elastic properties of shale based on solid substitution model
文献类型：期刊论文
| 作者 | Fu BoYe1,2,4; Fu LiYun3; Cao ChengHao1,2; Han TongCheng3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 63期号:7页码:2823-2835 |
| ISSN号 | 0001-5733 |
| 关键词 | Longmaxi Formation shale Solid substitution Heterogeneity analysis of shale Digital shale cores |
| DOI | 10.6038/cjg2020N0039 |
| 英文摘要 | The elastic moduli and the elastic wave velocities related to the elastic moduli are influenced by the fraction of TOC in shales. Therefore, the relation between the elastic moduli and the fraction of TOC in rocks, in turn, can be served as a method to explore the shale gas sweet spot. C&S and S&M substitution equations are mainly focused on the solid substitution problem for sandstones with large porosity. Whether the C&S and S&M substitution equation can be used to solve the solid substitution problem for shale with low porosity, complex pore structure and high heterogeneity is not researched deeply until now. Because the TOC shape in organic-rich shale is similar to shale pore and crack structure, the influence of the TOC content on the elastic moduli of shale can be regarded as a kind of solid substitution problem. In this research, we constructed a group of digital rock cores with different TOC content, and based on C&S and S&M solid substitution equations and FEM simulation researched the application of the two substitution equations, and the influence of TOC contents on the elastic properties of shale. It is shown that because of the heterogeneity of the distribution of pore and TOC in shales, there is error between the result of C&S equation and FEM simulation. However, the result of S&M equation is consistent with the result of FEM simulation. The difference between the results of C&S and S&M equations indicate the heterogeneity of the shales. The parameters alpha(1), alpha(2), beta(1) and beta(2) in S&M equation can be served as the parameters representing the heterogeneity of the distribution of pore and TOC in shales. |
| WOS关键词 | VELOCITY ANISOTROPY ; SCATTERING ; STRESS ; ATTENUATION ; FLUID ; EQUATIONS ; WAVES ; MEDIA |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000550583600026 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97576]  |
| 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 |
| 通讯作者 | Fu LiYun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.China Univ Petr East China, Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu BoYe,Fu LiYun,Cao ChengHao,et al. The analysis of the influence of organic content on the elastic properties of shale based on solid substitution model[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2020,63(7):2823-2835. |
| APA | Fu BoYe,Fu LiYun,Cao ChengHao,&Han TongCheng.(2020).The analysis of the influence of organic content on the elastic properties of shale based on solid substitution model.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,63(7),2823-2835. |
| MLA | Fu BoYe,et al."The analysis of the influence of organic content on the elastic properties of shale based on solid substitution model".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 63.7(2020):2823-2835. |
入库方式： OAI收割
来源：地质与地球物理研究所
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