Genetic Characteristics of Crude Oils from Yakela Oilfield in Tabei Uplift
详细信息
- 责任者：Li Hongbo (State Key Laboratory of Petroleum Resources and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Wang Tieguan
- 刊名：Acta Sedimentologica Sinica
- 出版年：2012
- 卷期：30(6)
- 关键词：原油 ; crude oil ; 石油成因 ; oil origin ; 塔里木盆地 ; Tarim Basin
- 页码：p.1165-1171
- 图表：3 illus., 1 table, 18 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Geochemical analysis was completed for crude oils from Yakela oilfield to investigate geochemical characteristics and genetic type of crude oils.The heptane value,isoheptane value and MCYC6 index of crude oils in Yakela oilfield provided excellent evidence for marine oils characteristics.Characteristics of triaromatic steroids and methyl triaromatic steroids further proved the O3 source rock was the source of oils in Yakela oilfield.Based on the light hydrocarbons,tricyclic terpanes, C28 steranes, triaromatic steranes and methyl triaromatic steranes,and carbon isotope composition of whole oil and fractions,it is suggested that the crude oils of Yakela oilfield in deeper and shallower layers had the common source and derived from O3 source rock.
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