苏鲁一带不同还原型镜质组的显微岩石学特征及其生烃潜力

MICROPETROLOGICAL CHARACTERISTICS AND HYDROCARBON-GENERATING POTENTIAL OF DIFFERENT REDUCTING TYPE VITRINITE IN JIANGSU-SHANDONG

李贤庆 赵师庆

Li Xianqing Zhao Shiqing

苏鲁一带不同还原型镜质组的显微岩石学特征和生烃潜力对比研究表明,较强还原型镜质组显着不同于较弱还原型镜质组,前者含有丰富的荧光镜质体,具有较低的反射率、较强的相对荧光强度、较短的最大荧光强度波长、较高的氯仿抽提物产率和生油潜量,尤其表现在0.6%～0.9%煤阶范围内。说明较强还原型镜质组相对富氢,具有较高的生烃潜力,特别是生成液态烃的潜力。较强还原型镜质组是较强还原型腐殖煤生油的重要母质。

The micropetrological characteristics and hydrocarbon-generating potential of different reduction type vitrinite collected in Jiangsu-Shandong were studied.The results show that the vitrinite of strong reduction type is much different from that of weak reduction type.The former has rich fluorescent vitrintite,lower reflectance,stronger relative fluorescence intensity,less spectral maximum,higher yields of chloroform bitumen and oil potential,especially ranges from 0.6% to 0.9%.All of them suggest that the vitrinite of strong reduction type is relatively rich in hydrogen,and has higher hydrocarbon generation potential,particularly for liguid hydrocarbon potential.Therefore,this type of vitrinite is an important parent substance of oil generauon for strong reduction type humic coal.

10.11743/ogg19950103