石油与天然气地质 ›› 1991, Vol. 12 ›› Issue (2): 136-142.doi: 10.11743/ogg19910205

• 论文 • 上一篇    下一篇

江汉和泌阳盆地中卟啉化合物的分布

陈军红1, 傅家谟1, 盛国英1, R. P. Philp2   

  1. 1. 中国科学院地球化学研究所广州分部;
    2. School of Geology and Geophysics, University of Oklahoma, U. S. A.
  • 收稿日期:1990-12-27 出版日期:1991-06-25 发布日期:2012-01-16

DISTRIBUTION OF PORPHYRIN IN JIANGHAN AND BIYANG BASINS

Chen Junhong1, Fu Jiamo1, Sheng Guoying1, R. P. Philp2   

  1. 1. Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou;
    2. School of Geology and Geophysics, University of Oklahoma, U. S. A.
  • Received:1990-12-27 Online:1991-06-25 Published:2012-01-16

PDF (PC)

632

被引次数

1

摘要：

卟啉化合物在江汉、泌阳两盆地中的分布,受沉积环境及热成熟作用的控制。五元侧环上具有甲基的C32,C33DPEP卟啉异构体在石油中的高丰度指示了一种出现在较高盐度环境中特殊生源前体以及低成熟度。在热成熟作用下,卟啉化合物的主要变化为DPEP的逐渐消失及ETIO中脱烷基及烷基化作用。DPEP/ETIO或DPEP/(DPEP+ETIO),C31ETIO-A/C28ETIO-B及ETIO-AC31/C30等比值可用作热成熟度指标。

关键词: 卟啉, 高效液相色谱, 沉积环境, 热成熟作用

Abstract:

The distribution of porphyrin in oils from Jianghan and Biyang Basins, China, was studied. The high contents of C32 and C33 DPEP porphyrin isomers with a additional methyl group in five-membered isocyclic ring is the indicator of an unusual type of porphyrin precusor or input occurred in sedimentary environment with very high salinity and low maturity of oils. The major changes of porphyrins under maturity are the gradual decreases of DPEP/(DPEP+ETIO)% and dealkylation/alkylation within ETIO porphyrins. The ratios of DPEP/ETIO or DPEP/(DPEP+ETIO)%, C31 ETIO-A/C28ETIO-B and ETIO-A C31/C30 can be used as thermal maturity parameters.