The potential analysis of hydrocarbon-producing for Triassic source rocks in Jiyuan basin

Abstract：The dark mudstone in Jiyuan basin which rich for organic substance is mainly source rocks.Some analyses of samples are done from the aspects of organic substance abundance, chloroform bitumen "A", tribe component, the pyrolysis of hydrocarbon-producing rate, organic substance style appraise, and organic substance maturity, etc.The results show that the samples basically belong to hydrocarbon source rock which have high quality, minority for moderate source rock and very few samples have warp likely owe to "heterogeneity engender" from several aspects.The transition forms for the organic substance are much for ⅡA (humic substances to sapropel type) or ⅡB (sapropel to humic substances type) , which namely the transition betweenⅠ (sapropel type) andⅢ (humic substances type) .

Keyword：Jiyuan basin;Triassic;source rocks;