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Origin of Chang 10 oil reservoir in Northern Shaanxi region of Ordos Basin
Author(s): 
Pages: 274-279
Year: Issue:  3
Journal: Geochimica

Abstract: 在鄂尔多斯盆地的陕北志丹地区勘探发现了长10油藏,原油密度为0.8152 g/cm3,全烃色谱图的主峰为nC13~nC15油质较轻.轻烃组分中环烷烃较为丰富,芳烃含量低,呈姥植均势(Pr/Ph为1.21~1.45),原油的δ13CPDB值为-31.78‰,甾萜烷分布与主要参数特征为:重排藿烷类相对丰度很高、伽马蜡烷低,Ts/Tm比值很高(5.54~7.26),C30*/C30藿烷比值高(0.67~...
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