Study on pore characteristics and microstructure of sandstones with different grain sizes

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• 作者：Huigui Li^a ; ^b ; ^{lihuigui1221@163.com} ; Huamin Li^a ; ^b ; Baobin Gao^c ; Wen Wang^a ; ^b ; Chuang Liu^a ; ^b
• 关键词：Sandstone ; Pore characteristics ; Microstructure ; NMR ; SEM
• 刊名：Journal of Applied Geophysics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：136
• 期：Complete
• 页码：364-371
• 全文大小：2898 K
• 卷排序：136

文摘

Significant differences are observed on the grain size, pore size and T2 distribution of sandstones. Both coarse and medium sandstones contain big pores, while fine sandstone contains small pores. The mean porosity of coarse, medium and fine sandstones is 7.52%, 5.88% and 1.55%, respectively.