Oils from different depth in the Alagoas sub-basin distribution and concentration; Oleos em diferentes profundidades na sub-bacia Alagoas: distribuicao e econcentracao

This paper reports the distribution and the concentration of n-alkane homologue series and the HPA compounds in 22 oils from Alagoas sub-basin, Pilar Field, Brazil. The n-alkane profile of whole oil gas chromatograms (CG-FID) to light, medium and heave oils represented no-biodegraded oils. The light and medium oils have n-alkane distribution with a maximum in nC{sub 10} and nC{sub 17}. The ration pristine/phytane (P/F) between 1,5 and 2,7 suggest Lacustrine origin. The nalkane distribution from the heavy oils show two maximum between nC{sub 15} and nC{sub 23}. The concentrations of n-alkane are different to all the 22 oils. The F2 fraction classified as light (API>39), medium (36

Keywords:

• Biphenyl
• Chemistry
• Naphthalene
• Analytical chemistry
• Dibenzofuran
• Phytane
• Fraction (chemistry)
• Chrysene
• Phenanthrene
• Dibenzothiophene

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