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

Henry, D.G.; Jarvis, I.; Gillmore, G.; Stephenson, M.. 2019 A rapid method for determining organic matter maturity using Raman spectroscopy: application to Carboniferous organic-rich mudstones and coals. International Journal of Coal Geology, 203. 87-98. 10.1016/j.coal.2019.01.003

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Official URL: http://dx.doi.org/10.1016/j.coal.2019.01.003

Abstract/Summary

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:	Publication - Article
Digital Object Identifier (DOI):	10.1016/j.coal.2019.01.003
ISSN:	01665162
Date made live:	25 Mar 2019 12:58 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/522643

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1016/j.coal.2019.01.003

ISSN:

01665162

Date made live:

25 Mar 2019 12:58 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/522643