Logging identification and distribution characteristics of high-gamma sandstones in the 7th member of Triassic Yanchang Formation, Ordos Basin

A large number of sandstone interlayers were developed in the shale strata of the 7th member of the Triassic Yanchang Formation (Chang 7 member) in the Ordos Basin. These sandstone interlayers are frequently accompanied by abnormally high natural gamma values as high as 330.5 API. As a result, they...

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Bibliographic Details
Main Authors: Fuliang YOU, Guangdi LIU, Mingliang SUN, Chaozheng LI, Xiangbai LIU, Cheng AN, Zixin WANG, Yishu LI
Format: Article
Language:zho
Published: Editorial Office of Petroleum Geology and Experiment 2023-01-01
Series:Shiyou shiyan dizhi
Subjects:
Online Access:https://www.sysydz.net/cn/article/doi/10.11781/sysydz202301099