Optimización del método de preparación de muestras de querógeno para su caracterización por espectroscopía infrarroja - reflectancia difusa (IRTF-RD)
With a sample of kerogen from Maracaibo Basin (La Luna Formation in its Maraca creek section), the method to characterize kerogen by diffuse reflectance –Fourier transformed infrared spectroscopy has been optimized. Trough obtaining spectra for 1, 3, 5, 10 and 20% mixtures of kerogen in KBr matrix a...
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2013
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| Accés en línia: | http://geofisicaucv.org.ve/Geofisica-UCV/Revista_GEOS_files/GEOS-44-2013-01.pdf http://hdl.handle.net/10872/7632 |
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| Sumari: | With a sample of kerogen from Maracaibo Basin (La Luna Formation in its Maraca creek section), the method to characterize kerogen by diffuse reflectance –Fourier transformed infrared spectroscopy has been optimized. Trough obtaining spectra for 1, 3, 5, 10 and 20% mixtures of kerogen in KBr matrix and varying certain processing parameters, it is recognized that the optimum ratio is the 5% mixture with a total of 40 scans per analysis. The behavior of signal intensity, the base line characteristics and the influence of humid-absorbed water were evaluated. The study aims to test the advantages of the technique and then to shape the analysis as an important complement to geochemical information for the understanding of petroleum systems, specifically petroleum generation which is an especially interesting area in Venezuela. In this way, the technique could be used for establishing and applying compositional parameters of kerogen samples and other similar organic samples. |
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