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Geochemical Characteristics and Genesis of Crude Oil from Dongzhi-Zhengning Area of Ordos Basin
Author(s): DUAN Yi, MA Chunlin, YU Yongjin, LIU Junfeng, LIU Yicang, HE Jinxian, WU Baoxiang, XU Li, ZHANG Xiaoli
Pages: 1002-
1009
Year: 2011
Issue:
5
Journal: Acta Sedimentologica Sinica
Keyword: Ordos Basin; crude oil from Dongzhi-Zhengning area; biomarker compound; compositional and distributional characteristics; genesis;
Abstract: 鄂尔多斯盆地董志—正宁地区是该盆地中生界油气勘探新区,对该地区原油的地球化学进行研究,了解原油的成因,可以为该地区石油勘探和开发提供科学依据。本研究首次对采集于董志—正宁地区原油和鄂尔多斯盆地烃源岩的烃类生物标志化合物进行了系统的分析,研究了它们的地球化学特征。原油中各类烃类生物标志化合物分布和组成特征指示了原油形成于淡水弱还原环境;油源对比研究反映了董志—正宁地区原油主要来自长7烃源岩。
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