中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
The effect of grain size, porosity and mineralogy on the compressive strength of tight sandstones: A case study from the eastern Ordos Basin, China

文献类型：期刊论文

作者Qi, Yu1,2,3; Ju, Yiwen1; Yu, Kun1,4; Meng, Shangzhi5; Qiao, Peng1
刊名JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
出版日期2022
卷号208页码:16
关键词Tight sandstone Compressive strength Grain size Porosity Fractal Mineralogy
ISSN号0920-4105
DOI10.1016/j.petrol.2021.109461
英文摘要To better understand how textural properties and mineralogy control compressive strength, this work performed the grain size analysis, porosity measurement, X-ray diffraction, microscopic observation, and mechanical tests on deep-buried reservoir sandstones in the eastern Ordos Basin, China. The results suggest that uniaxial compressive strength (UCS) declines with increasing grain size. Meanwhile, the UCS is reduced by grains >250 mu m and enhanced by grains <250 mu m. Sandstones with higher fractal dimensions are poorer-sorted and have platykurtic distribution, while those with low fractal dimensions are better-sorted and show leptokurtic distribution. The former tends to have larger UCS than the latter because they have more smaller grains to distribute the load over larger grains. Both the UCS and confined compressive strength (CCS) exponentially decline with porosity. Internal friction angle and influence coefficient decrease with increasing porosity, suggesting that the compressive strength of low-porosity sandstones is more sensitive to the variation of confining pressure. With regard to mineralogy, there is a weak negative relationship between UCS and quartz content. It is because textural properties control the UCS, dominating over the effects of mineralogy, or alternatively stress concentrations and the initiation of cracks preferentially occur in brittle quartz grains rather than softer materials.
WOS关键词MECHANICAL-PROPERTIES ; GEOTECHNICAL PROPERTIES ; ROCK STRENGTH ; PREDICTION ; DIAGENESIS ; RESERVOIRS ; BEHAVIOR ; SYSTEMS
资助项目National Natural Science Foundation of China[42002162] ; National Natural Science Foundation of China[41872160] ; National Science and Technology Major Project[2016ZX05066003] ; National Science and Technology Major Project[2016ZX05066006] ; China Postdoctoral Science Foundation[2020M670451]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000697722400050
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 ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/102724]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Ju, Yiwen
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
3.Yanshan Univ, Sch Vehicle & Energy, Dept Petr Engn, Qinhuangdao 066004, Hebei, Peoples R China
4.China Univ Min & Technol, Sch Mines, Xuzhou 221116, Jiangsu, Peoples R China
5.China United Coalbed Methane Co Ltd, Beijing 100011, Peoples R China
推荐引用方式
GB/T 7714		 Qi, Yu,Ju, Yiwen,Yu, Kun,et al. The effect of grain size, porosity and mineralogy on the compressive strength of tight sandstones: A case study from the eastern Ordos Basin, China[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2022,208:16.
APA Qi, Yu,Ju, Yiwen,Yu, Kun,Meng, Shangzhi,&Qiao, Peng.(2022).The effect of grain size, porosity and mineralogy on the compressive strength of tight sandstones: A case study from the eastern Ordos Basin, China.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,208,16.
MLA Qi, Yu,et al."The effect of grain size, porosity and mineralogy on the compressive strength of tight sandstones: A case study from the eastern Ordos Basin, China".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 208(2022):16.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。