[CCoE Notice] Dissertation Defense: Application of Raman Spectroscopy and Transmission Spectroscopy for Shale Reservoir Characterization: Thermal Maturity Correlation and Organic Matter Type Differentiation

[Grayson, Audrey A]

PhD Dissertation Defense

Petroleum Engineering Department

Zhengfan Liu



Application of Raman Spectroscopy and Transmission Spectroscopy for Shale Reservoir Characterization: Thermal Maturity Correlation and Organic Matter Type Differentiation





Date: Tuesday, December 4, 2018



Location: ConocoPhillips Petroleum Engineering Building 9, Rm 124

Energy Research Park



Time: 3:00 pm



Committee Chair:

Dr. Lori A. Hathon



Committee Members:

Dr. Michael T. Myers

Dr. K. K. (Adry) Bissada

Dr. Konstantinos Kostarelos

Dr. Ahmad Sakhaee-Pour

Dr. Paul Hackley





Organic rich shale formations have historically been of interest principally as source rocks for hydrocarbon (HC) generation. As such the prime areas of interest in their study have included organic matter type, as evaluated using geochemical techniques, and thermal maturity.  The standard measures of thermal maturity include vitrinite reflectance and various other visual (e.g. TAI, bitumen reflectance, etc.) and geochemical measurements (e.g. Rock-Eval T-Max) all reported as %Ro or an equivalent %Ro.

Recently, with advances in hydraulic fracturing and horizontal drilling, shale formations have become of economic importance as unconventional reservoirs for HC production. As a result, in addition to thermal maturity, other aspects of shale formations related to their reservoir properties have received increasing attention. New tools and methods have been developed and integrated together in order to build models for shale reservoir properties.

In this work, we focus on applying Raman and transmission spectroscopy of isolated organic material and intact samples for thermal maturity estimation and OM type characterization. Measurement of intact sample material will allow the OM type analyses to be put into a depositional context. The spectroscopic techniques will be combined with other measurements including Rock-Eval pyrolysis, vitrinite reflectance, registered thin section, micro-CT, and image analysis. The geomechanical properties of cores from multiple shale formations at different thermal maturity levels are also investigated with acoustic velocity measurement.

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