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Gas generation from coal and coal-measure mudstone source rocks of the Xujiahe Formation in the Western Sichuan Depression, Sichuan Basin (四川盆地川西坳陷须家河组煤和煤系泥岩生气特征)
  • 2024-01-08
元数据
名   称 Gas generation from coal and coal-measure mudstone source rocks of the Xujiahe Formation in the Western Sichuan Depression, Sichuan Basin (四川盆地川西坳陷须家河组煤和煤系泥岩生气特征)
科技资源标识 CSTR:11738.14.NCDC.XDA14.PP5712.2024
DOI 10.1007/s12583-022-1627-z
数据共享方式 开放下载
摘   要 The Triassic and Jurassic tight sandstone gas in the western Sichuan depression, Sichuan
Basin has attracted much attention in recent years, and the Upper Triassic coal-bearing Xujiahe Formation
is believed to be the major source rock. However, there are relatively few studies on the carbon
isotopic heterogeneity of methane generated from coal-measure source rocks and the origin of the natural
gases in Xinchang Gas Field is still controversial. In this study, one coal-measure mudstone sample
and one coal sample of the Xujiahe Formation in western Sichuan Basin were selected for gold tube pyrolysis
experiment to determine their gas generation characteristics. Geological extrapolation of gas
generation and methane carbon isotope fractionation parameters reveals that the main gas generation
stage of Xujiahe Formation ranges from Late Jurassic to Cretaceous in the Xinchang Gas Field. The
natural gas in the 5th member of Xujiahe Formation in Xinchang Gas Field is mainly derived from the
5th member of Xujiahe Formation itself, i.e., self-generation and self-reservoir, however, the gas in the
Jurassic gas pools is mainly derived from the source rocks of the 3rd member of Xujiahe Formation
rather than the 5th member of Xujiahe Formation.
KEY WORDS: western Sichuan Basin, coal, coal-measure mudstone, Xujiahe Formation, kinetics of
methane carbon isotope fractionation.
学科分类
170.50
关键词
gas generation coal-measure mudstone source rock of xujiahe formation
作者 Zijin Wu
数据量 1.2 MiB
论文类型： journal
论文网址： http://en.earth-science.net
期刊名称： Journal of Earth Science
出版时间： 2022-09-01
引用和标注
数据引用
Zijin Wu. Gas generation from coal and coal-measure mudstone source rocks of the Xujiahe Formation in the Western Sichuan Depression, Sichuan Basin (四川盆地川西坳陷须家河组煤和煤系泥岩生气特征). 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP5712.2024.
Zijin Wu. Gas generation from coal and coal-measure mudstone source rocks of the Xujiahe Formation in the Western Sichuan Depression, Sichuan Basin (四川盆地川西坳陷须家河组煤和煤系泥岩生气特征). 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://www.doi.org/10.1007/s12583-022-1627-z.
许可协议
知识共享许可协议   本作品采用 知识共享署名 4.0 国际许可协议进行许可。
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