神东矿区煤的煤岩特征及热解生烃潜力研究

通过系统研究神东矿区主要可采煤层的煤岩特征,以及神木煤的热解试验结果,探讨了不同煤岩组成的生烃性能。研究认为,神东煤有机质含量高;热解液态烃产率低,气态烃产率较高;镜质组含量与生烃潜量具有明显的正相关关系,煤中丰富的镜质组是主要的成烃母质。不同煤岩成分和类型的研究结果表明,亮型煤生烃性能最好,母质最优;暗型煤生烃性能及母质较差。 

Petrography and hydrocarbon generating potential of coal in Shendong mining area

Coal petrography of main minable coal beds in Shendong mining area and coal pyrogenation in Shenmu are researched in detail,the hydrocarbon potential of different coal components is discussed.It is considered that the characters of Shenmu coal are of high organic matter contents,low liquid hydrocarbon productivity and high gas hydro-carbon productivity,and there is a direct relationship between vitrinite contents and potential hydrocarbon generating.Therefore,vitrinite of coal is main precursor hydrocarbon-forming.On the basis of different lithotype of coal and coal samples analysis,the ability for hydro-carbon generating and precursor of bright type coal are better than that of dull type coal.