Oil-Oil and Oil-Source Rock Correlations: Techniques

Philp, R. Paul

doi:10.1007/978-1-4615-2890-6_19

Cited by 10 publications

(6 citation statements)

References 56 publications

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“…6 In addition, the distribution of porphyrins in oils and shales can be used for correlation of crude oils with other crude oils and crude oils with potential source rocks. 7,8 Geoporhyrins occur with a wide variety of skeletal types, of which DPEP and etioporphyrin (Scheme 1) are the most important. They are typically found as either the vanadyl (V O) or nickel complexes.…”

Section: ■ Introductionmentioning

confidence: 99%

Analysis of Geologically Relevant Metal Porphyrins Using Trapped Ion Mobility Spectrometry–Mass Spectrometry and Theoretical Calculations

et al. 2016

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The structural characterization of metal porphyrins has been traditionally challenging as a result of their large structural and compositional diversity. In the present paper, we show the advantages of gas-phase, postionization separations for the fast identification and structural characterization of metal octaethylporphyrins (Me−OEP) from complex mixtures using trapped ion mobility spectrometry (TIMS) coupled to ultrahigh-resolution mass spectrometry (FT-ICR MS). TIMS−FT-ICR MS allows for the separation of Me−OEP (Me = Mn, Ni, Zn, VO, and TiO) within a crude oil sample based on accurate mass and mobility signatures (with a mobility resolving power of R IMS ∼ 150−250). Accurate collision cross sections are reported for Me−OEP in nitrogen as bath gas (CCS N 2 ). Inspection of the Me−OEP mobility spectra showed a single mobility component distribution for Me−OEP (Me = Mn, Ni, and Zn) and a multi-component distribution for the two metal carbonyls, vanadyl (V O) and titanyl (TiO) Me−OEP. Candidate structures were proposed at the DFT/B3LYP/6-31g(d) level for all Me−OEP mobility bands observed. Inspection of the optimized Me−OEP candidate structures shows that manganese, zinc, and free OEP adopt a planar conformation, the nickel-complexed OEP structure adopts a "ruffled" conformation; and the metal oxide OEP adopts a dome conformation, with carbonyl pointing upward, perpendicular to the plane of the structure.

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Section: ■ Introductionmentioning

confidence: 99%

Analysis of Geologically Relevant Metal Porphyrins Using Trapped Ion Mobility Spectrometry–Mass Spectrometry and Theoretical Calculations

et al. 2016

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“…As metodologias descritas relacionadas à extração de matéria orgânica solúvel de amostras de rochas têm como objetivo separar a fração solúvel (betume) da insolúvel (querogênio) e têm importância reconhecida, pois possibilita análises químicas do betume por métodos cromatográicos (Eglinton & Murphy, 1969;Philp, 1993;Peters et al, 2005).…”

Section: Methodsunclassified

Analytical Study Applied to the Procedure of Isolation of Kerogen in Rocks Samples with Hydrocarbon Potential

et al. 2019

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ResumoO presente trabalho teve como objetivo contribuir com a otimização da técnica para o isolamento do querogênio em rochas sedimentares com altos teores de matéria orgânica solúvel, por meio de testes experimentais visando a limpeza das amostras. As amostras de rocha utilizadas foram folhelhos negros da Formação Irati, ricos em matéria orgânica e com potencial para geração de hidrocarbonetos. Um planejamento experimental do tipo fatorial foi proposto, para a lavagem das amostras de rocha com a utilização de um solvente orgânico (diclorometano) em sistema Soxhlet. Foram estabelecidas relações quimiométricas com dois níveis de interação entre as variáveis (2 2 ): massa da amostra da rocha (variando de 20 a 40 g) e tempo de lavagem no diclorometano (variando de 0 a 56 h). O planejamento experimental adotado gerou resultados qualitativos, obtidos por meio de uma avaliação visual, relacionada à formação de um anel de querogênio e à luorescência observada nas lâminas palinofaciológicas. Os resultados dos testes conirmaram a eiciência da eliminação de hidrocarbonetos livres utilizando o sistema Soxhlet, quando amostras com teores altos de hidrocarbonetos livres (até 4 mg HC/g rocha, aproximadamente) foram submetidas ao valor mínimo de massa (20 g) e ao tempo máximo de lavagem (56 h), nos quais o anel de querogênio foi formado em todas as amostras. Com essa mesma coniguração de massa e tempo, as lâminas palinofaciológicas não apresentaram interferência dos hidrocarbonetos na luorescência dos componentes orgânicos. Portanto, concluiu-se que quanto maior o tempo de lavagem e menor a massa utilizada das amostras, melhores foram os resultados obtidos.

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“…Such organic molecules are characterized by their restricted occurrence, source specificity, molecular stability, and suitable concentration for analytical detection (Aboul-Kassim and Simoneit, 2001). MMs have wide spread applications in organic compounds characterization and source identification (e.g., Aboul-Kassim, 1998;Aboul-Kassim and Simoneit, 1996;2001;Aboul-Kassim andWilliamson, 2002, Curiale, 1993;Fraser and Lakshmanan, 2000;Hedges and Prahl, 1993;Kavouras et al, 1998;Kumata et al, 2002;Nolte et al, 1999;Philp, 1993;Porte et al, 2000;Salau et al, 1997;Standley et al, 2000;Zakaria et al, 2000;Zumberge, 1993). The following is an attempt to characterize the main hydrocarbon composition of bottom sediments sampled from the Portland Harbor.…”

Section: Molecular Markersmentioning

confidence: 99%

“…They are detected in the environment with structures suggesting an unambiguous link with known contemporary products. MMs are specific indicator compounds that can be utilized for genetic source correlation (Aboul-Kassim, 1998;Aboul-Kassim and Simoneit, 2001;Aboul-Kassim andWilliamson, 2002, Dymond, 1981;Fraser and Lakshmanan, 2000;Hedges and Prahl, 1993;Kavouras et al, 1998;Kvenvolden et al, 1985;Kumata et al, 2002;Nolte et al, 1999;Philp, 1993;Standley et al, 2000;Zumberge, 1993). Such organic molecules are characterized by their restricted occurrence, source specificity, molecular stability, and suitable concentration for analytical detection (Aboul-Kassim and Simoneit, 2001).…”

Section: Molecular Markersmentioning

confidence: 99%

Forensic Analysis and Genetic Source Partitioning Model for Portland Harbor Contaminated Sediments

Aboul-Kassim

Williamson²

2003

J ENV INFORM

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Oil-Oil and Oil-Source Rock Correlations: Techniques

Cited by 10 publications

References 56 publications

Analysis of Geologically Relevant Metal Porphyrins Using Trapped Ion Mobility Spectrometry–Mass Spectrometry and Theoretical Calculations

Analysis of Geologically Relevant Metal Porphyrins Using Trapped Ion Mobility Spectrometry–Mass Spectrometry and Theoretical Calculations

Analytical Study Applied to the Procedure of Isolation of Kerogen in Rocks Samples with Hydrocarbon Potential

Forensic Analysis and Genetic Source Partitioning Model for Portland Harbor Contaminated Sediments

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