Comprehensive diag”nostic review of the (13)~C-enriched crude oils exemplified by TD2∈ and TZ62S in Tarim Basin, NW China

作     者：Hu Liu Zewen Liao Haizu Zhang Yankuan Tian Bin Cheng Xiaohong Chang 

作者机构：State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences University of Chinese Academy of Sciences Research Institute of Petroleum Exploration & Development Petro China Tarim Oilfield Company 

出 版 物：《Chinese Journal Of Geochemistry》 (中国地球化学学报)

年 卷 期：2015年第34卷第1期

页      面：62-68页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 41272149) National oil and gas Projects (Grant No. 2011ZX05008-002) 

主　　题：塔里木盆地 综合诊断 原油 中国 富集 碳同位素比值 同位素地层 审查 

摘      要：The crude oils typically from the CambrianLower Ordovician source rocks of Tarim Basin, NWChina, such as TD2 and TZ62S, are13C-enriched with the stable carbon isotopic ratios(VPDB) approaching-28 %.In this paper, the main research viewpoints on this issue are summarized, and combined with results from organic and inorganic carbon isotope stratum curves of the outcrop at the Ya erdang Mountain in Tarim Basin. In addition, more alternative interpretations are discussed. On one hand, the inverse fractionation features of stable carbon and hydrogen isotopes of these crude oils may imply their protogenous nature. On the other hand, the anisotropy of source rocks and contribution from older stratum source rocks need verifying as well. For the sake of the final resolution of this issue, some further study topics are recommended.