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基质镜质体成烃的新认识
石油与天然气地质
2001年 22卷 第No.2期
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Title
NEW RECOGNITION ON HYDROCARBON GENERATION OF DESMOCOLLINITE
Authors
Wen Zhigang
Zhang Aiyun
Wang Zhengyun
Lin Xiaoyun
摘要
在煤层中,尽管壳质组的生油潜量高于等量的基质镜质组,但由于基质镜质组在煤层中所占比例远高于壳质组,所以其生烃总量并不低于壳质组.新疆伊宁盆地侏罗系煤系的模拟结果表明,基质镜质体在模拟温度为380～420℃时为生烃高峰期,450～500℃时生烃结束.基质镜质组的生烃产物中,气态产物与液态产物大致相当.与壳度组相比,基质镜质组具有生烃开始时间早、结束晚的特点.
Abstract
In coal beds, though hydrocarbon generation potential of liptinite is much higher than that of equal amount of desmocollinite, total amount of hydrocarbon generation of desmocollinite may not be lower than that of liptinite due to its large proportion. The simulation results of Jurassic coal-measures in Yining Basin, Xinjiang show that when simulation temperature is 380～420℃, hyrocarbon generation reaches its peak stage, and hydrocarbon generation stops at the temperature 450～500℃ To compare with liptinite, desmocollinite has longer hydrocarbon generation duration.
关键词：
基质镜质组;
生烃;
模拟实验;
伊宁盆地;
Keywords:
desmocollinite;
hydrocarbon generation;
simulation experiment;
Yining Basin;
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