Source Rock Evaluation using Total Organic Carbon (TOC) and the Loss- On-Ignition (LOI) Techniques | OMICS International | Abstract
ISSN 2472-0518

Oil & Gas Research
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Research Article

Source Rock Evaluation using Total Organic Carbon (TOC) and the Loss- On-Ignition (LOI) Techniques

Al-Selwi A and Joshi M*

Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, UTM, Malaysia

*Corresponding Author:
Joshi M
Faculty of Chemical and Energy Engineering
Universiti Teknologi Malaysia, UTM, Malaysia
Tel: +(6)075535559
E-mail: [email protected]

Received date: September 08, 2015; Accepted date: November 17, 2015; Published date: November 21, 2015

Citation: Al-Selwi A, Joshi M (2015) Source Rock Evaluation using Total Organic Carbon (TOC) and the Loss-On-Ignition (LOI) Techniques. Oil Gas Res 1:105. doi:10.4172/2472-0518.1000105

Copyright: © 2015 Al-Selwi A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


This paper analyzes the methods used to determine Total Organic Carbon (TOC) content in rock samples. These methods include the High Temperature Catalytic Oxidation HTCO and the Loss-on-ignition (LOI). The study was conducted on shale samples. The main objective is to identify the potential petroleum productivity of these rocks. Two samples were tested. One is presumed to be an organic shale, while the other is a typical ‘inorganic shale” sample. In the Loss-on-ignition method, the effect of sample size and time of exposure on TOC values were also investigated. The results show that Loss-on-ignition yields higher values than the HTCO method. In addition, size and exposure time cause a significant effect on TOC values. Therefore, these two parameters have to be mentioned along with each TOC measurement.


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