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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/29584
Tipo: Artigo de Periódico
Título: Correlações geoquímicas entre amostras de petróleo da Bacia Potiguar e definição de suas possíveis rochas geradoras
Título(s) alternativo(s): Química Nova
Autor(es): Alves, Jeferson Cavalcante
Araujo, Rennan Geovanny Oliveira
Souza, Eliane Soares de
Soares, Sarah Adriana Rocha
Cerqueira, José Roberto
Garcia, Karina Santos
Queiroz, Antonio Fernando de Souza
Vale, Maria Goreti Rodrigues
Borges, Aline Rocha
Autor(es): Alves, Jeferson Cavalcante
Araujo, Rennan Geovanny Oliveira
Souza, Eliane Soares de
Soares, Sarah Adriana Rocha
Cerqueira, José Roberto
Garcia, Karina Santos
Queiroz, Antonio Fernando de Souza
Vale, Maria Goreti Rodrigues
Borges, Aline Rocha
Abstract: Eight petroleum samples from Potiguar Basin were submitted for determination of saturated biomarkers by gas chromatography (fingerprint), liquid chromatography (saturates, aromatics, resins and asphaltenes), gas chromatography-mass spectrometry (GC-MS), nickel and vanadium by high resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS). The geochemical parameters provided information on type of depositional paleoenvironment in which organic matter that gave rise to each oil sample and level of thermal maturation reached by generating rocks that make up the Potiguar Basin were deposited. The relationships between the stable isotopes of carbon (δ13C) and between Ni and V concentrations of each petroleum sample were also evaluated. The evaluations separated for oil samples into two distinct groups. Group 1 formed by samples P1, P2, P5 and P8, with characteristics of generating rock that was deposited in a marine hypersaline environment. Group 2 composed of samples P3, P4, P6 and P7 with freshwater lacustrine depositional paleoenvironment,which were elucidated through the geochemical parameters studied. The hierarchical cluster analysis was presented as promising chemometric tool for characterization of petroleum samples in the according to their origin of the generating rock by ratio parameters of hopane/sterane , tetracyclic polyiprenoids/diastereomers and diastereos R+S/cholestane R+S.
Palavras-chave: petroleum
biomarkers
nickel
vanadium
carbon isotopes
País: Brasil
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/29584
Data do documento: 1-Fev-2018
Aparece nas coleções:Artigo Publicado em Periódico (POSPETRO)

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