摘要
作为一种非破坏性分析有机化合物结构的先进技术,显微傅里叶红外光谱法(Micro FT-IR)在油气包裹体成分分析过程中,不仅可以判断油气的成熟程度,还可划分油气的成藏期次和油气类型。以冀北-辽西坳陷下马岭组石英砂岩中油气包裹体为例,利用显微傅里叶红外光谱仪对油气包裹体进行研究。结果表明,该区至少存在两期次的油气充注,早期为具有较高CH2/CH3比值的中-重质油,晚期为具有较低CH2/CH3比值的轻质油或凝析油气,轻质油或凝析油气包裹体作为烃源岩生油高峰阶段的产物,是辽西-冀北地区的主要油气类型。实践表明,显微傅里叶红外光谱法是研究油气包裹体的有效手段之一。
As an advanced technology to analyze the structure of organic compounds non-destructively,Micro fourier transform infrared（ MICRO FT-IR） can solve the problems of source maturity,pool-forming periods and hydrocarbon types in the component analysis processes of hydrocarbon inclusions. The technique of MICRO FT-IR is applied to study the hydrocarbon inclusions in quartz sandstone samples collected from the Xiamaling formation in Jibei-Liaoxi depression. The results show that two different periods of pool-forming have been identified. Mediumheavy oil which has high CH2/ CH3 is the first pool-forming period and the second period is light-condensate oil with low CH2/ CH3. Light-condensate oil is the main type in the Xiamaling formation. Micro FT-IR is an effective method to study hydrocarbon inclusions.
出处
《东华理工大学学报（自然科学版）》
CAS
2015年第1期32-36,共5页
Journal of East China University of Technology(Natural Science)
