Artículos de revistas
Advanced Aspects Of Crude Oils Correlating Data Of Classical Biomarkers And Mass Spectrometry Petroleomics
Registro en:
Energy & Fuels. Amer Chemical Soc, v. 31, p. 1208 - 1217, 2017.
0887-0624
1520-5029
WOS:000394560900015
10.1021/acs.energyfuels.6b02362
Autor
Santos
Jandyson Machado; Lemos Santos
Flavia Micaella; Eberlin
Marcos Nogueira; Wisniewski
Alberto
Jr.
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The complex geochemical characteristics of crude oils can provide important information on oil generation, such as the input of organic matter and their depositional environments, also supporting exploration, extraction, and production. This work reports the first organic geochemical evaluation of oils from the first commercial Brazilian onshore field (Carmopolis, Sergipe, Brazil) via both classical biomarkers and petroleomics data collected via ultrahigh-resolution and accuracy Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Gas chromatography/mass spectrometry (GC/MS) was used to characterize the oil composition in terms of n-alkane, isoprenoid, terpane, and sterane biomarkers, whereas either positive or negative electrospray ionization (ESI) and FT-ICR were used to profile the polar constituents of the oils. GC/MS revealed geochemical characteristics that classify the oil at different levels of thermal evolution and biodegradation. FT-ICR MS attributed molecular formulas to more than 3000 polar oil constituents, allowing geochemical parameters to be inferred mainly from the carbon number (Cn) and double bond equivalent (DBE) trends, along with the N and O-2 classes. The Dia27(S + R)/alpha alpha alpha C-27(S + R), % C-28, and % C-29 parameters and S/(S + R)alpha alpha alpha C-29, alpha beta beta(S + R)/alpha beta beta + alpha alpha alpha(S + R)C-29, and % C-27 biomarkers obtained from GC/MS were responsible to indicate similarity between samples, whereas N and O-2 classes provided the most distinction among the crude oil blends in terms of the level of biodegradation and thermal maturity. 31 2 1208 1217 Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2013/19161-4] Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) (Brazilian Research Councils) PETROBRAS/UOSEAL/ENGP/LABF [0050.0078683.12.9] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)