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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 6, No. 1, 2002, pp. 34-38
Bioline Code: ja02008
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 6, No. 1, 2002, pp. 34-38

 en An Infrared Spectroscopic Evaluation of the Petroleum Potentials of Some Oil Shale From Lokpanta in the Lower Benue Trough of Nigeria
OSUJI, L C; ANTIA, B S

Abstract

The kerogen of thirty randomly sampled outcrops of Lokpanta oil shales in the Lower Benue trough of Nigeria was extracted, isolated and characterized by infra-red {IR} spectroscopy. Quantitative assessment of the kerogen concentrates was made and correlated with the total organic carbon content {TOC} of source rocks The isolated kerogen concentrates were found to have a mean weight [ ± standard deviation] of 3.86 ± 0.84% of the dry rock sample. Analysis of the IR spectra was carried out both qualitatively and semi-quantitatively. Extrapolations from structural elucidation revealed that the Lokpanta facies contained few mono-aromatics and cyclohexyl rings. The spectra variously showed good correlations in the 1600cm-1, 1450cm-1 and 2900cm-1 peak areas. Deduction from results show that although kerogen concentrates varied from 0.76% to 11.06%, over 50% of the sampled outcrops had a percent weight > 2.5% which is the lower limit proposed for mature, oil - and gas - generating organic matter. @ JASEM

 
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