新疆石油地质 ›› 1998, Vol. 19 ›› Issue (3): 187-191.

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我国西北地区侏罗系含煤盆地低成熟油田的形成

胡社荣   

  1. 中国矿业大学北京研究生部 北京 100083
  • 收稿日期:1997-10-16 出版日期:1998-06-01 发布日期:2020-10-26
  • 作者简介:胡社荣:博士 有机地球化学

FORMATION OF IMMATURE OILFIELD IN JURASSIC COAL-BEARING BASIN IN NORTHWESTERN CHINA

Hu Sherong   

  1. Beijing Graduate School, China University of Mining and Technology, Beijing 100083
  • Received:1997-10-16 Online:1998-06-01 Published:2020-10-26
  • About author:Hu Sherong, Doctor, Organic Geochemistry

摘要: 通过低成熟油产出的煤岩学分析, 结合泥炭、煤和含煤岩系泥岩的成烃实验成果指出, 煤中粘土矿物和微孔隙的吸附作用控制和影响着煤成油的形成、排驱和运移。我国西北地区侏罗系煤生油显微组分主要为基质镜质体和木栓质体, 它们在低成熟度条件下很难形成大规模的低成熟煤成油田,但在湖相烃源岩发育的一些坳陷区内能找到低熟油田。

关键词: 中国, 西北地区, 侏罗纪, 低成熟油, 煤成油, 热成熟度, 烃类组分, 镜质体反射率

Abstract: Based on the coal petrology of immature oil and the hydrocarbon-generation experiments with peat, coal and mudstone in coal-bearing series, it is pointed out that absorption of clay minerals and micro-pore in coal controls formation, expulsion and migration of coal-formed oil.The maceral of Jurassic coal in northwestern China is composed of matrix vitrinite and suberinite.It is quite difficult to form the sized oilfield but may be discovered in some depressions with developed limnetic facies source rock.

Key words: China, Northwest area, Jurassic, Low maturation oil, Coal-formed oil, Thermal maturity, Hydrocarbon composition, Vitrinite reflectance