Effect of artificially induced maturation on the elastic properties of kerogen

Alsinan, Salma

doi:10.1190/segam2017-17257552.1

Cited by 17 publications

(1 citation statement)

References 19 publications

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“…However, one interesting thing about sample 3 is that its lowest modulus value corresponds to the lowest Ι 1 , Ι 2 , and DOC value and the highest CH 2 /CH 3 value, which can be seen in Figure . The “overall” tendency of the modulus value is consistent with the results of other studies. ,,,, Through integrating Raman, FTIR, and AFM analysis results, the assumption from Emmanuel et al that the change of modulus values probably arises from the evolution of chemical structures in the maturation process seems to be reasonable.…”

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confidence: 87%

Integrated Experimental Characterization of Shales of Varying Thermal Maturation in the Central Appalachian Basin Using Raman and Fourier Transform Infrared Spectroscopy and Atomic Force Microscopy

et al. 2020

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Mechanical and chemical characteristics of shales with different thermal maturities were investigated through Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, and atomic force microscopy (AFM). The organic and inorganic components are identified through FTIR, and chemical structure variation associated with the maturation process is characterized preliminarily by Raman spectroscopy and FTIR analysis. Mechanical properties are characterized at the micrometer or even nanometer scale by AFM. Young’s modulus from AFM scans varies from 8.20 to 13.94 GPa for organic matter, with the softer organic matter (low modulus value) surrounded by stiffer organic matter (higher modulus value). Comparative analysis of the experimental data (Raman, FTIR, and AFM) indicates that higher modulus values may be attributed to a change in chemical structure during maturation. The growth of aromatic groups and decreasing CH2/CH3 ratio may contribute to increased values for the mechanical properties of organic components.

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