【摘要】 对辽河盆地西部坳陷19个原油和生油岩样品中的卟啉进行了系统的调查。采用紫外-可见光光谱、质谱和双质谱分别对这些石油馏分进行测试和分析,发现辽西剖面岩卟啉的含量随埋藏深度变化的宏观特征与总烃随埋深的变化趋势一致,证实了卟啉类化合物是石油低成熟阶段的有效地球化学指标。油/油和油/岩对比表明,高升1-6-14井原油和高升3-7-9井原油可能来自不同的油源区,且高升3-7-9井原油具有国内外罕见的以玫红型卟啉为主的特征。采用双质谱技术获得了单个卟啉核外取代基的结构信息,并对这些信息进行了定性和定量分析。更多还原

【Abstract】 Petroporphyrins of 19 samples from crude oil and source rocks in the western depression of Liaohe Basin, purified via TLC and demetallized with p-toluensulfonic acid, areanalysed by means of DCC, UV-ViS, MS and MS/MS etc. From the above analyses, itwas found that changes in rockporphyrin content with burial depth show an agrcementwith the variety in total hydrocarbon content in the profile of western Liaohe Basin,porphyrins compounds are proved to be effective geochemical index during period oflow-maturity of petroleum. Comparisons between oil/oil and oil/rock indicate thatcrude oils from wells Nos. 1-6-14 and 3-7-9 in Liaohe-Gaosheng oilfield may be comefrom different oil-source areas. In addition, the crude oil from well No 3-7-9 is possessedof the characteristic showing predominantly rhodoporphyrins(63.9%). This characteristic isseldom the case at home and abroad. A structure information on the extranuclearsubtituents of individual porphyrin was abtained with Tandem mass spectrometry. Quantitative and qualitative analyses for the information have been made in this paper.更多还原