A rapid method for determining organic matter maturity using laser Raman spectroscopy : application to Carboniferous organic-rich mudstones and coals

Henry, D.G, Jarvis, I, Gillmore, G and Stephenson, M (2019) 'A rapid method for determining organic matter maturity using laser Raman spectroscopy : application to Carboniferous organic-rich mudstones and coals.' International Journal of Coal Geology, 203. pp. 87-98. ISSN 0166-5162

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Official URL: https://doi.org/10.1016/j.coal.2019.01.003

Abstract

A simple and rapid automated Raman maturity method is calibrated using a suite of Carboniferous organic-rich mudstones and coals from the Inch of Ferryton-1 borehole in the Midland Valley of Scotland. Sediments in the borehole have been thermally matured by intrusion of a quartz dolerite sill, generating vitrinite reflectance (VR) values ranging from 0.5 to 6.0%VRo. Calibration curves are tested on eight other UK wells penetrating Carboniferous shales and coals in the Midland Valley and southern Pennine Basin. The G-band full-width at half-maximum (G-FWHM) is the best Raman parameter to estimate the thermal maturity of organic matter (OM) in the oil and gas window (0.5 to 3%VRo) and has a very strong correlation with VRo.

Item Type: Article
Keywords: Raman spectroscopy, organic matter, maturity, kerogen, coals, organic-rich mudstone, shale gas, automated spectral analysis
Divisions: School of Sciences
Identification Number: https://doi.org/10.1016/j.coal.2019.01.003
Date Deposited: 27 May 2021 19:04
Last Modified: 15 Aug 2021 09:56
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