引用本文:
宋继梅, 毕建宏, 刘峰. 恒定能量同步荧光光谱技术在油气化探中的应用[J]. 应用化学,
2004, 21(9): 966-968.
Citation: SONG Ji-Mei, BI Jian-Hong, LIU Feng. Constant Energy Synchronous Fluorescence Spectroscopy in Prospecting for Oil and Natural Gas[J]. Chinese Journal of Applied Chemistry, 2004, 21(9): 966-968.
Citation: SONG Ji-Mei, BI Jian-Hong, LIU Feng. Constant Energy Synchronous Fluorescence Spectroscopy in Prospecting for Oil and Natural Gas[J]. Chinese Journal of Applied Chemistry, 2004, 21(9): 966-968.
恒定能量同步荧光光谱技术在油气化探中的应用
摘要:
石油中富含芳烃。荧光光谱常用于石油样品的分析。近十年来,固定波长同步荧光光谱、三维荧光光谱技术在石油化学勘探领域得到广泛应用[14]。1982年,Inman等[5]提出恒定能量同步荧光光谱分析法。保持激发光与发射光能量差恒定(Δν=1/λEx-1/λEm)的条件下(λEx激发波长、λEm发射波长),同时进行激发光和发射光扫描,获得的光谱即为恒定能量同步荧光光谱[6]。用低温或常温恒定能量同步荧光光谱对多组分芳烃混合物进行测定,能得到较好的分析结果[7,8]。与常规荧光光谱相比,恒定能量同步荧光光谱在克服拉曼光、散色光,提高分析灵敏度和选择性方面比经典发光分析法和固定波长同步荧光光谱分析法更优越,能反映芳烃混合物中各组分的特征,可用来同时测定混合物中的多环芳烃[9]。本文利用恒定能量同步荧光光谱技术,分析我国各大油气田的石油、天然气及与石油有关的样品,找出了典型油气的恒定能量同步荧光光谱特征。为判断油气属性、选取油气勘探靶区提供有效的依据。
English
Constant Energy Synchronous Fluorescence Spectroscopy in Prospecting for Oil and Natural Gas
Abstract:
The optimium value of Δν=-1 400 cm-1(Δν=1/λEx-1/λEm) for constant-energy synchronous fluorescence spectrometry was obtained by a series experiments of crude oil, crushed well-rock sand. Based on studying characteristics of constant-energy synchronous fluorescence spectra of various kinds of crude oils and natural gas from large oil fields in our country, the characteristic peak of typical crude oils were proposed. The main emission peak of condensation gas, light oil and dense oil was found at 276 nm, 300 nm and 330 nm respectively.
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