新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (1): 22-27.

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准噶尔盆地侏罗纪煤有机岩石学研究

魏辉, 金奎励, 张纪易   

  1. 中国石油天然气总公司石油勘探开发科学研究院 北京 100083
  • 收稿日期:1996-11-27 发布日期:2020-11-15
  • 作者简介:魏辉:博士 有机岩石学和有机地球化学

ORGANIC PETROLOGY STUDY OF JURASSIC COAL SERIES IN JUNGGAR BASIN

Wei Hui, Jin Kuili, Zhang Jiyi   

  1. Research Institute of Petroleum Exploration and Development, CNPC, 100083
  • Received:1996-11-27 Published:2020-11-15
  • About author:Wei Hui, Doctor, Organic Petrology and Geochemistry

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摘要： 有机岩石学方法是研究煤成油的重要方法之一。显微镜下反射光及荧光分析研究认为, 准噶尔盆地侏罗纪煤中存在大量的生烃组分, 大部分基质镜质体都发一定强度的荧光。煤的生烃性与主要生烃组分的含量密切相关。本区相当数量的煤有机质类型为Ⅱ2 型, 部分为Ⅱ1 型。成熟度研究表明, 本区侏罗纪煤已达到或超过生烃门限并产出大量的液态烃,是准噶尔盆地重要的烃源岩之一。

关键词: 准噶尔盆地, 侏罗纪, 煤组分, 显微镜显示, 荧光分析, 煤成油, 生油层

Abstract: Organic petrology is an important method for studying coal-formed oil.According to microscopic fluorescence and reflection analyses of Jurassic coal series, this paper considered that there is a large quantities of hydrocarbon-generation maceral, most of desmocollinite can shine fluorescence.The hydrocarbon generation characteristics of coal correlates closely with the quantities of hydrocarbon generation maceral. The main organic matter types of Jurassic coal belong in type Ⅱ2, and some in type Ⅱ1.The study on maturity proved that Jurassic coal has reached or exceeded the “oil window” and generated a large number of liquid hydrocarbon, being as an important source rock in Junggar basin.

Key words: Junggar basin, Jurassic, Coal composition, Microscopy, Fluorescence analysis, Coal-formed oil, Source bed