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Nanoscale geochemical and geomechanical characterization of organic matter in shale

Author

Listed:
  • Jing Yang

    (Schlumberger-Doll Research Center)

  • Javin Hatcherian

    (U.S. Geological Survey)

  • Paul C. Hackley

    (U.S. Geological Survey)

  • Andrew E. Pomerantz

    (Schlumberger-Doll Research Center)

Abstract

Solid organic matter (OM) plays an essential role in the generation, migration, storage, and production of hydrocarbons from economically important shale rock formations. Electron microscopy images have documented spatial heterogeneity in the porosity of OM at nanoscale, and bulk spectroscopy measurements have documented large variation in the chemical composition of OM during petroleum generation. However, information regarding the heterogeneity of OM chemical composition at the nanoscale has been lacking. Here we demonstrate the first application of atomic force microscopy-based infrared spectroscopy (AFM-IR) to measure the chemical and mechanical heterogeneity of OM in shale at the nanoscale, orders of magnitude finer than achievable by traditional chemical imaging tools such as infrared microscopy. We present a combination of optical microscopy and AFM-IR imaging to characterize OM heterogeneity in an artificially matured series of New Albany Shales. The results document the evolution of individual organic macerals with maturation, providing a microscopic picture of the heterogeneous process of petroleum generation.

Suggested Citation

  • Jing Yang & Javin Hatcherian & Paul C. Hackley & Andrew E. Pomerantz, 2017. "Nanoscale geochemical and geomechanical characterization of organic matter in shale," Nature Communications, Nature, vol. 8(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-02254-0
    DOI: 10.1038/s41467-017-02254-0
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    Cited by:

    1. Xiaoqi Wang & Yanming Zhu & Yang Wang, 2020. "Fractal Characteristics of Micro- and Mesopores in the Longmaxi Shale," Energies, MDPI, vol. 13(6), pages 1-21, March.
    2. Wang, Tianyu & Tian, Shouceng & Li, Gensheng & Zhang, Liyuan & Sheng, Mao & Ren, Wenxi, 2021. "Molecular simulation of gas adsorption in shale nanopores: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).
    3. Zhan, Honglei & Yang, Qi & Qin, Fankai & Meng, Zhaohui & Chen, Ru & Miao, Xinyang & Zhao, Kun & Yue, Wenzheng, 2022. "Comprehensive preparation and multiscale characterization of kerogen in oil shale," Energy, Elsevier, vol. 252(C).
    4. WeiGang Yu & Jiang Lei & Tengxi Wang & Wei Chen, 2019. "H 2 O 2 -Enhanced Shale Gas Recovery under Different Thermal Conditions," Energies, MDPI, vol. 12(11), pages 1-12, June.
    5. Zhan, Honglei & Wang, Yan & Chen, Mengxi & Chen, Ru & Zhao, Kun & Yue, Wenzheng, 2020. "An optical mechanism for detecting the whole pyrolysis process of oil shale," Energy, Elsevier, vol. 190(C).

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