It is that the major hydrocarbon generating microscopic component of the main source rock of Lucaogou group is a sapropelic amorphous type.

• 本文在油源对比的基础上,对三塘湖盆地低熟源岩有机显微组分进行研究,认为盆地主力源岩芦草沟组主要生烃显微组份为腐泥无定型组。