新疆石油地质

新疆石油地质 ›› 1994, Vol. 15 ›› Issue (1): 22-29.

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煤和陆源有机质生油岩有机岩石学特点及评价

王飞宇, 傅家漠, 刘德汉, 何萍   

  1. 石油地球化学 石油大学 北京 102200
  • 收稿日期:1993-10-22 出版日期:1994-03-01 发布日期:2020-08-06
  • 作者简介:博士研究生

ORGANIC PETROLOOIC CHARACTERISTICS AND ASSFSSMENT OF COAL AND TERRESTRIAL ORGANIC MATTER OIL SOURCE ROCK

Mang Feiyu, Fu Jiamo, Liu Dehan, He Ping   

  1. Petroleum Geochemistry, Petroleum University, Beijing 102200
  • Received:1993-10-22 Online:1994-03-01 Published:2020-08-06
  • About author:Doctor Gradaute Student.

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摘要： 煤和陆源有机质生油岩与海相、湖相腐泥型生油岩组成了地质体中的三大类型生油岩。其特点是:生油岩中有机质以高等植物占绝对优势,以Ⅲ型千酪根为主;有机质由生油富氢组分(包括壳质组分、腐泥组分和超微类脂体)和不生油贫氢组分组成。前者的数量决定着这种生油岩的生油潜力。由于煤和陆源有机质烃源岩在组成和结构上的复杂性,必须采取以荧光显微镜为主,并结合反光、透射电子显微镜分析技术,进行分层次(深入到显微组分、亚显微组分、微显微组分)的研究,才能准确评价此类生油岩。新疆侏罗系煤系烃源岩富氢组分中以镜质组(其中含有一定数量的超微类脂体)占绝对优势、暗色泥岩中相对富含类脂体组分,其生油潜力不容忽视。

关键词: 煤, 陆源有机质生油岩, 有机岩石学, 新疆, 侏罗系

Abstract: Coal, terrestrial organic-rich source rock as well as marine and lacustrine sapropelic source rock are three type of source rocks in geologic bodies, which are characterized by organic matters in source rock significanly dominated by higher plants, being mainly typeⅢ kerogen, and composed of oilprone hydrogen-rich macerals (vitrinite, sapropelic maceral and super-micro liptinite) which control the oil potential and hydrogen poor macerals with no oil potential. Considering the complicated composition and structure of coal and terrestrial organic - rich source rocks, progressive (maceral, submaceral and supermaceral in turn) studies must be undertaken using fluorescent micrscope analysis technique first, combined with reflection and transmission electronic microscope analysis technique, to obtain an accu­rate evaluation of the source rock, Hydrogen-rich components of Jurassic coaly source rocks in Xinjiang are significanly dominated by vitrinite (certain amounts of super-microliptinite exist) and liptinite is comparatively abundant in dull shale. Therefore its oil potential cannot be neglected.

Key words: Coal, Terrestrial organic-rich source rock, Organic petrology, Xinjiang, Jurassic