Geochemical characterization and classification of Cuban asphaltites

Quimica nova

Guzzo, Jarbas Vicente Poley¹  Azevedo, Débora de Almeida²  Dominguez, Zulema³ 

[1] Centro de Investigaciones del Petróleo, Habana, Cuba;Petrobras, Rio de Janeiro, Brasil;Universidade Federal de Rio de Janeiro, Rio de Janeiro, Brasil

关键词: biomarker;    biodegradation;    statisticalanalysis.;   

DOI  :  10.1590/S0100-40422008000600011

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Traditional biomarker parameters and aromaticcompounds were applied to characterize and classify ten Cuban asphaltites (asphaltene-richpetroleum occurring as seeps or filling veins, joints, cavities and fissures).Genetic molecular parameters were compared in order to establish oil-oil correlationsbetween samples. Thermal evolution was investigated using saturated biomarkerand aromatic maturity parameters. All samples seem to represent petroleum inthe early catagenetic stage. Statistical procedures used as auxiliary techniquesshow that they represent oils of Family II (marine anoxic carbonate sourcedoils), except for 2 samples interpreted as belonging to Family III oils (normalmarine siliciclastic suboxic sourced oils).

【 授权许可】

CC BY