塔河油田稠油中25-降苯并藿烷的检出及其意义     

李敏  ;田辉  ;肖贤明  ;张水昌  ;相明辉  ;盖海峰  ;程鹏  ;傅家谟 《地球化学》2014,(5):453-459

与苯并藿烷相比,25-降苯并藿烷的研究较少,目前这类化合物仅检出于加拿大和我国川西北的降解沥青中。本研究在塔河油田井下奥陶系储层稠油中检测到了完整系列的25-降苯并藿烷（C31-C34）,发现25-降苯并藿烷与苯并藿烷的比值与现有的生物降解评价参数有较好的可比性,且该参数在不同降解程度原油中的差别比其他参数更大,故今后有必要对其开展更深入的研究,以便更精细地评价原油的生物降解程度。  相似文献   

Origin of hydrocarbons in triassic serpiano oil shales: Hopanoids     

J. McEvoy  W. Giger 《Organic Geochemistry》1986,10(4-6)

The hydrocarbons in the sapropelic Serpiano oil shales have been examined. The hopanoids are the most predominant hydrocarbons present in the bitumen, with hopanes, hopenes, benzohopanes and monoaromatic secohopanoids being detected. The novelty of the Serpiano hopanoid assemblages lies in the occurrence of high concentrations of methylhopanoids. The distributions of the hopanoids and of their corresponding methylhopanoids are remarkably similar. This similarity was also observed for the hopanes and methylhopanes which were generated from the asphaltene and kerogen by hydrous pyrolysis, and is indicative of a common biosynthetic pathway.  相似文献