苏北盆地生油岩中甾、萜的地球化学特征和我国东部低成熟的生油岩与原油   总被引：12，自引：0，他引：12  

史继扬汪本善  范善发徐芬芳张丽洁  洪紫青吕国英 《地球化学》1985,(1):80-89

Steranoids and terpanoids in source rocks and crude oils from the Gaoyou depression have been analyzed by GC-MS.The fact that C20 sterane 14 α（H)17α(H)20S/14α（H）17α（H）20（R S）%and C31 hopane 17α（H）21β（H）22S/17α（H）21β（H）22（R S）%in the oils are higher than those in the source rocks,as has been revealed in this study,is eonsidered.to have resulted from,oil migration.By comparing steranes and hopanes in inmature oils from the eastern part of China with those in source rocks,it is suggested that the source rocks with over 10% C20 sterane 14α（H）17α（H），20S/14α（H）17α（H）20（R S）%，over 3% C29 sterane 14β（H）17β（H）20（R S）[14α（H）17α（H）20（R S） 14β（H）17β（H）20（R S）]% and≥50%,C31 hopane 17α（H）21β（H）22S/17α（H）21β（H）22(R S)%in the eastern part of China may produce crude oils of commercial importance.It seems possible to find inmature oils in the sedimentary rocks at burial depths shallower than the oil-generating threshold and mature oils migrated from deep levels in shallow reservoirs.  相似文献   

苏北盆地东台拗陷下第三系油源对比   总被引：2，自引：0，他引：2  

范善发汪本善  史继扬张丽洁洪紫青  吕国英林华元  徐伟民夏延 《地球化学》1986,(2):147-159

本文研究了苏北盆地东台拗陷下第三系原油和生油岩，包括生物标志物分布，稳定碳同位素比值和生油岩干酪根类型．油样分成四种类型．生物标志物参数和稳定碳同位素比值可以有效地判别原油的成熟度。油源对比表明，阜宁组四段和二段的暗色泥岩是主要构生油岩。本文讨论了低成熟生油岩及其原油的生物标志物分布特征。  相似文献