Terpanos pentacíclicos como indicadores de heterogeneidades composicionais em reservatório de petróleo biodegradado

Química Nova

Laercio Lopes Martins¹  Gabriel Clemente Franklin¹  Eliane Soares De Souza¹  Georgiana Feitosa Da Cruz¹ 

[1] ,Universidade Estadual do Norte Fluminense Centro de Ciências e Tecnologia Laboratório de Engenharia e Exploração de PetróleoMacaé RJ ,Brasil

关键词: reservoir geochemistry;    tar sands;    pentacyclic terpane;   

DOI  :  10.5935/0100-4042.20140222

来源: SciELO

【 摘 要 】

Reservoir geochemistry has been effectively used to evaluate compositional heterogeneity in petroleum reservoirs by employing oil fingerprinting technique to assess reservoir continuity, primarily in paraffin oil accumulations. In-reservoir biodegradation has resulted in vast deposits of heavy oils globally; therefore, the application of reservoir geochemistry to such accumulations becomes necessary. We recommend the use of pentacyclic terpanes instead of lower molecular compounds, which are less resistant to biodegradation. Using oil fingerprinting technique in this novel way enabled the differentiation of oil composition among sedimentary facies of tar sands (Pirambóia Formation, Paraná Basin).

【 授权许可】

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