首页|期刊导航|中国地球化学学报（英文版）|Compositional characteristics and geochemical significance of light hydrocarbons for crude oils in Tarim Basin, China
中国地球化学学报（英文版）2005，Vol.24Issue(3)：228-231,4.
Compositional characteristics and geochemical significance of light hydrocarbons for crude oils in Tarim Basin, China
Compositional characteristics and geochemical significance of light hydrocarbons for crude oils in Tarim Basin, China
摘要
Abstract
Light hydrocarbons, especially C7 isoalkanes, cyclopentanes, cyclohexanes and n-heptane in 540 oils from the Tarim Basin were studied systematically. The results suggested the K1 values [(2-MH+2,3-DMP)/(3-MH+2,4-DMP)] of crude oils vary from a lowest value of 0.78, to a highest value of 1.54, but the K1 values of the majority of oil samples (80%) range from 0.90 to 1.20. However, the absolute contents of (2-methylhexane+ 2,3-dimethylpentane) and (3-methylhexane+2,4-dimethylpentane) in the total light hydrocarbons (C4-C7) show a similar variation trend. The variation of K1 values of crude oils can suggest a typical sedimentary environment for source rocks. Therefore, according to the compositional characteristics of C7 light hydrocarbons in light of the steady-state catalytic hypothesis, non-marine oils from the Yingmaili area and marine oils from the Tazhong uplift in the Tarim Basin were genetically classified.关键词
Mango's light hydrocarbon parameter (K1)/geochemical characteristic/crude oil/Tarim BasinKey words
Mango's light hydrocarbon parameter (K1)/geochemical characteristic/crude oil/Tarim Basin分类
化学化工引用本文复制引用
ZHANG Min..Compositional characteristics and geochemical significance of light hydrocarbons for crude oils in Tarim Basin, China[J].中国地球化学学报（英文版）,2005,24(3):228-231,4.基金项目
This study was financially supported by the Natural Science Foundation of Hubei Province (No. 2004ABA144). （No. 2004ABA144）
