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- W41497103 abstract "This study examines simulated oil migration through a carrier rock and the effects of migration on the stable carbon isotope distribution and chemical composition of migrated crude oils (Model I) and organic rich shales (Model II). Model I consists of a preparative high pressure liquid chromatography system in which crude oils are passed through water-wet mineral phases. After each run the column eluent and extracts of the stationary mineral phase are separated into saturate, aromatic and NSO (polar) fractions by column chromatography and further analyzed by gas chromatography, gas chromatography-mass spectrometry, stable carbon isotope mass spectrometry and x-ray fluorescence (SRF). In model II, organic rich shales adjacent to clean sands are heated in high pressure vessels in the presence of water. After heating, the shales and sands are analyzed for their respective compositions as in model I. Experimental results indicate that a redistribution of the C/sub 15+/ aliphatic hydrocarbon fractions in favor of the lower molecular weight components occurs with increased distance of migration. With increased migration, /sup 13/C values for the aromatic fraction remains relatively unchanged, whereas the saturate and NSO fractions become slightly depleted in /sup 13/C. XRF analysis indicate that concentrations of nickel, vanadium and sulfur decreasemore » with increased distance of migration. Furthermore, fingerprints of the sterane and terpane geological markers by capillary GC-MS suggest a redistribution of these biomarkers with increased migration distance.« less" @default.
- W41497103 created "2016-06-24" @default.
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- W41497103 date "1986-01-01" @default.
- W41497103 modified "2023-09-28" @default.
- W41497103 title "Laboratory simulation of crude oil migration: possible implications for il exploration" @default.
- W41497103 hasPublicationYear "1986" @default.
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