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Dynamic fracture evolution of tight sandstone under uniaxial compression in high resolution 3D X-ray microscopy

文献类型：期刊论文

作者Zhang, Yifei1,2,3; Niu, Suyun2,3; Du, Zhongming2,3; Hao, Jin2,3; Yang, Jijin1,2,3
刊名JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
出版日期2020-12-01
卷号195页码:14
关键词Tight sandstone 3D XRM Uniaxial compression Fracture evolution
ISSN号0920-4105
DOI10.1016/j.petrol.2020.107585
英文摘要Stress-induced fracture evolution in tight sandstone reservoir is of great significance in hydraulic fracturing treatment and borehole stability. The meso scale fracture mechanism needs to be well understood. In this work, the smaller-sized tight sandstone specimens (4 mm in diameter and 8 mm in height) from Bashijiqike formation were studied under uniaxial compression in high resolution three dimensional (3D) X-ray microscopy (XRM). Using high-resolution XRM, 2D slices and 3D digital cores with real pore structure characteristics were reconstructed at different stages of uniaxial compression. During the uniaxial loading process, porosity and diameter distribution of the voids were obtained to analyze the progressive deformation of rock, and then the complexity and heterogeneity of the cracks were quantified by applying fractal analysis. The results show that the fracture evolution of tight sandstone at meso scale could be divided into compaction stage, linear elastic behavior stage, non-linear deformation stage and residual deformation stage. The mineral composition and meso structure of tight sandstone have significant effects to its mechanical properties, fracture pattern and crack morphology under uniaxial compression. The propagation direction of secondary cracks tends to parallel to the direction of axial stress, revealed by higher resolution of region of interest (ROI) imaging.
WOS关键词COMPUTED-TOMOGRAPHY ; CRACK-PROPAGATION ; ACOUSTIC-EMISSION ; BRITTLE-FRACTURE ; STRESS ; ROCK ; DAMAGE ; DEEP ; RESERVOIR ; STRENGTH
资助项目National Natural Science Foundation of China[U1562215] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10050000]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000586002900043
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; 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 ; 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 ; 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
源URL[http://ir.iggcas.ac.cn/handle/132A11/99908]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Yang, Jijin
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yifei,Niu, Suyun,Du, Zhongming,et al. Dynamic fracture evolution of tight sandstone under uniaxial compression in high resolution 3D X-ray microscopy[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,195:14.
APA Zhang, Yifei,Niu, Suyun,Du, Zhongming,Hao, Jin,&Yang, Jijin.(2020).Dynamic fracture evolution of tight sandstone under uniaxial compression in high resolution 3D X-ray microscopy.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,195,14.
MLA Zhang, Yifei,et al."Dynamic fracture evolution of tight sandstone under uniaxial compression in high resolution 3D X-ray microscopy".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 195(2020):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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