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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。
Porphyrins in 19 samples of crude oil and source rock from western depression in the Liaohe Basin were systematically investigated. The petroleum fractions were tested and analyzed by UV-Vis spectroscopy, mass spectrometry and double-mass spectrometry respectively. It was found that the porphyrin content in the western Liaoning Province was similar to that of the total hydrocarbon with the macro-depth of burial depth. Compounds are effective geochemical indicators of the low-maturity stage of petroleum. The oil / oil and oil / rock comparisons show that crude oil from wells 1-6-14 with high elevation and oil from wells 3-7-9 with high elevation may come from different oil source areas, and crude oil with an elevation of 3-7-9 is rare in China and abroad Rose red porphyrin-based features. The structure information of single substituent outside the porphyrin nucleus was obtained by double mass spectrometry, and qualitative and quantitative analysis of these informations was carried out.