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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes

Abstract


Pub. Id: A031 (1985)

First Page: 233

Last Page: 241

Book Title: SG 20: Alaska North Slope Oil-Rock Correlation Study: Analysis of North Slope Crude

Article/Chapter: Alaskan North Slope Oil-Rock Correlation: SOURCE ROCK EVALUATION INCLUDING ISOTOPES AND BIOMARKERS

Subject Group: Geochemistry, Generation, Migration

Spec. Pub. Type: Studies in Geology

Pub. Year: 1985

Author(s): L. W. Elrod, K. K. Bissada, E. L. Colling

Abstract:

Nine oil and 15 rock samples from the Alaskan North Slope have been analyzed for the purpose of determining which, if any, of the sampled formations sourced the sampled oils and determining the extent of agreement of results among the participating laboratories.

Results from chromatography of the gasoline-range hydrocarbon fractions of the oil samples did not lead to meaningful correlations because most of the oils contained insufficient gasoline-range hydrocarbons. Hydrocarbon distributions derived from C15+ chromatography of the oils were not useful for correlation owing to the significant degree of biodegradation suffered by some samples. Stable carbon isotope compositions and sterane and triterpane distributions suggest that the oils represent at least two families and appear to provide the best means for correlating the oils to the rocks.

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