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Articles | Volume 14, issue 11
Articles | Volume 14, issue 11
https://doi.org/10.5194/se-14-1169-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-14-1169-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 11
Method article
 | 
07 Nov 2023
Method article |  | 07 Nov 2023

The influence of extraction of various solvents on chemical properties on Chang 7 shale, Ordos Basin, China

Yan Cao, Zhijun Jin, Rukai Zhu, and Kouqi Liu

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Short summary
Fourier transform infrared (FTIR) was performed on shale before and after solvent extraction. The extraction yield from shale with THF is higher than other solvents. The organic-C-normalized yield of a mature sample is higher than other samples. The aromaticity of organic matter increases, and the length of organic matter aliphatic chains  does not vary monotonically with increasing maturity. The results will help in the selection of organic solvents for oil-washing experiments of shale.
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