Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil

For a petroleum company, the oil biodegradation is an important aspect to appraisal both exploration/production and economic perspective. Black to volatile oils require different materials and techniques in comparison to those used for heavy oils. Economically, biodegradable oils has a lower marke...

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Main Authors: Natália Medeiros Marins Nunes, Marcus Vinicius Berao Ade, Rene Rodrigues, Fernanda Botelho de Assis, Felipe Nascimento, Ricardo Teixeira Nicácio Leite
Format: Article
Language:English
Published: Universidade Federal do Rio de Janeiro 2017-09-01
Series:Anuário do Instituto de Geociências
Subjects:
Online Access:http://www.anuario.igeo.ufrj.br/2017_3/2017_3_222_231.pdf
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author Natália Medeiros Marins Nunes
Marcus Vinicius Berao Ade
Rene Rodrigues
Fernanda Botelho de Assis
Felipe Nascimento
Ricardo Teixeira Nicácio Leite
author_facet Natália Medeiros Marins Nunes
Marcus Vinicius Berao Ade
Rene Rodrigues
Fernanda Botelho de Assis
Felipe Nascimento
Ricardo Teixeira Nicácio Leite
author_sort Natália Medeiros Marins Nunes
collection DOAJ
description For a petroleum company, the oil biodegradation is an important aspect to appraisal both exploration/production and economic perspective. Black to volatile oils require different materials and techniques in comparison to those used for heavy oils. Economically, biodegradable oils has a lower market value than the non-biodegradable oil. Following the presence and absence of a set of biomarkers observed in the chromatograms and fragmentograms, it is possible an interpretation and an indentification of different levels of biodegradation . This methodology comprises the main objective of this work. The oil studied lacks “n” and iso-alkanes, the major proportion of tricyclic on the pentacyclic, the presence of demethylated compounds, plus the major proportion of diasteranes on steranes, suggesting an advanced degree of biodegradation. According to this investigation, the degree 8 of biodegradation (Peter & Moldowan, 1993), records a huge process of bacterial attack happened into the reservoir in a range of temperature from 350 C up to 500 C, from the oil/water contact
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spelling doaj.art-c10fe614d38345ec976446070d581a9b2023-01-02T05:11:54ZengUniversidade Federal do Rio de JaneiroAnuário do Instituto de Geociências0101-97591982-39082017-09-01403222231http://dx.doi.org/10.11137/2017_3_222_231Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, BrazilNatália Medeiros Marins Nunes0Marcus Vinicius Berao Ade1Rene Rodrigues2Fernanda Botelho de Assis3Felipe Nascimento4Ricardo Teixeira Nicácio Leite5Universidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroQueiroz Galvão Exploração e Produção S.A.Halliburton Service – LandmarckFor a petroleum company, the oil biodegradation is an important aspect to appraisal both exploration/production and economic perspective. Black to volatile oils require different materials and techniques in comparison to those used for heavy oils. Economically, biodegradable oils has a lower market value than the non-biodegradable oil. Following the presence and absence of a set of biomarkers observed in the chromatograms and fragmentograms, it is possible an interpretation and an indentification of different levels of biodegradation . This methodology comprises the main objective of this work. The oil studied lacks “n” and iso-alkanes, the major proportion of tricyclic on the pentacyclic, the presence of demethylated compounds, plus the major proportion of diasteranes on steranes, suggesting an advanced degree of biodegradation. According to this investigation, the degree 8 of biodegradation (Peter & Moldowan, 1993), records a huge process of bacterial attack happened into the reservoir in a range of temperature from 350 C up to 500 C, from the oil/water contacthttp://www.anuario.igeo.ufrj.br/2017_3/2017_3_222_231.pdfOrganic geochemistry;Biomarkers;Biodegradation
spellingShingle Natália Medeiros Marins Nunes
Marcus Vinicius Berao Ade
Rene Rodrigues
Fernanda Botelho de Assis
Felipe Nascimento
Ricardo Teixeira Nicácio Leite
Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil
Anuário do Instituto de Geociências
Organic geochemistry;
Biomarkers;
Biodegradation
title Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil
title_full Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil
title_fullStr Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil
title_full_unstemmed Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil
title_short Oil Biodegradation in Siliciclastic Reservoir: an Example from Paleogene, Oliva Block, North of Santos Basin, Brazil
title_sort oil biodegradation in siliciclastic reservoir an example from paleogene oliva block north of santos basin brazil
topic Organic geochemistry;
Biomarkers;
Biodegradation
url http://www.anuario.igeo.ufrj.br/2017_3/2017_3_222_231.pdf
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