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Study on Stable Carbon Isotopic Compositions of n-alkanes and Isoprenoids for Crude Oils from Well Lunnan 14, Tarim Basin
Author(s): 
Pages: 477-481,504
Year: Issue:  3
Journal: ACTA SEDIMENTOLOGICA SINICA

Keyword:  轮南14井正构烷烃类异戊二烯烃单体碳同位素;
Abstract: 通过对轮南14井正构烷烃和类异戊二烯烃的单体碳同位素分析,证实该井奥陶系和石炭系油藏具有相同或相似的油源,而三叠系油藏与奥陶系、石炭系油藏具有较大的碳同位素差异,反映其油源不同.在奥陶系、石炭系和三叠系油藏中,均呈现出类异戊二烯烃碳同位素值略重于同碳数正构烷烃的特征,结合前人研究成果,从生物合成途径及分子内碳同位素的分布角度出发得到合理的解释.
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