Fracture stratigraphy and mechanical stratigraphy in sandstone: A multiscale quantitative analysis
文献类型：期刊论文
| 作者 | Liu, Jingshou1,2,3; Chen, Peng1; Xu, Ke4; Yang, Haimeng5; Liu, Hejuan6; Liu, Yang7 |
| 刊名 | MARINE AND PETROLEUM GEOLOGY
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 145期号:-页码:- |
| 关键词 | Mechanical stratigraphy Fracture stratigraphy Quantitative analysis Sandstone reservoir Ordos basin |
| ISSN号 | 0264-8172 |
| 英文摘要 | Mechanical stratigraphy can provide valuable knowledge for evaluating and predicting the distribution of structural fractures and in situ stress. The fracture stratigraphy and mechanical stratigraphy of the Triassic Yanchang Formation sandstone reservoirs in the Huaqing area of the Ordos Basin were investigated. In this study, borehole images were used to identify and characterize the orientation and properties of natural fractures, and array acoustic logs were used to analyze the rock mechanical properties. By considering the positional and scale cycles, the mechanical stratigraphy and areal fracture density at multiple scales were calculated, and the sta-tistical correlation between them was analyzed. The results show that when the dynamic Young's modulus is less than 45 GPa, the areal fracture density generally increases with increasing Young's modulus; when the dynamic Young's modulus is greater than 48.5 GPa, the areal fracture density decreases with increasing dynamic Young's modulus. Additionally, the areal fracture density peaks when the dynamic Young's modulus is in the range of 45-48.5 GPa. In general, the dynamic Poisson's ratio is negatively correlated with the areal fracture density at multiple scales; when the dynamic Poisson's ratio is less than 0.24, the areal fracture density rapidly decreases as the dynamic Poisson's ratio increases; when the dynamic Poisson's ratio is greater than 0.24, the dynamic Poisson's ratio is only weakly correlated with the areal fracture density. The fitting results between the me-chanical stratigraphy and areal fracture density show that the mathematical model relating these two parameters is related to the statistical scale. |
| 学科主题 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000862131200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35546]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Wuhan, 430074, China 2.School of Earth Resources, China University of Geosciences, Wuhan, 430074, China 3.Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China 4.Institute of Exploration and Development, PetroChina Tarim Oilfield Company, Korla, 841000, China 5.College of Earth Sciences and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China 6.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China 7.Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China |
| 推荐引用方式 GB/T 7714 | Liu, Jingshou,Chen, Peng,Xu, Ke,et al. Fracture stratigraphy and mechanical stratigraphy in sandstone: A multiscale quantitative analysis[J]. MARINE AND PETROLEUM GEOLOGY,2022,145(-):-. |
| APA | Liu, Jingshou,Chen, Peng,Xu, Ke,Yang, Haimeng,Liu, Hejuan,&Liu, Yang.(2022).Fracture stratigraphy and mechanical stratigraphy in sandstone: A multiscale quantitative analysis.MARINE AND PETROLEUM GEOLOGY,145(-),-. |
| MLA | Liu, Jingshou,et al."Fracture stratigraphy and mechanical stratigraphy in sandstone: A multiscale quantitative analysis".MARINE AND PETROLEUM GEOLOGY 145.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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