• 责任者：Liu Chun (Hangzhou Research Institute of Petroleum Geology ; PetroChina ; Hangzhou 310023 ; China) ; Guo Qingxin
• 刊名：Natural Gas Geoscience
• 出版年：2011
• 卷期：22(4)
• 关键词：原油 ; crude oil ; 地球化学 ; geochemistry ; 四川盆地 ; Sichuan Basin
• 页码：p.692-699
• 图表：9 illus., 1 table, 21 refs.
• 分类号：1003
• issnNo：ISSN1672-1926
• isbnNo：CN62-1177/TE

Several techniques, including GC, GC-MS and GC-IRMS, are used to study the molecular geochemistry and origin of oil (filled joint and cavern in limestone) of T1f1 in the Changjianggou profile of the northwest of the Sichuan Basin. The data show that the petroleum δ¹³C values for bulk oil and group compositions are less than -30 ‰. On the basis of regional geology, source rock characteristics of T₁f₁, geochemical characteristics of petroleum and oil-source correlation, the authors consider that the crude petroleum is a product of Cambrian source rock at the oil generation peak and the occurrence of crude petroleum in the limestone cave and seam is a result of tectonic destroys after the early oil accumulation.