有机显微组分X射线衍射分析方法在油气评价中的应用

Ｘ射线衍射分析法适宜于分析有机显微组分的芳环层的层状结构。有机质的芳环层结构与其类型和演化程度有关。表征有机质芳环层的层状结构的主要参数：高度Ｌｃ、宽度Ｌａ、网面间距ｄｈｋ１和芳环层层数可作为油气勘探中判断源岩性质、类型、演化程度与生烃潜力的依据。文章还对参数的变化与意义进行了初步讨论。

APPLICATION OF X-RAY DIFFRACTION ANALYSIS OF ORGANIC MACERALS IN THE EVALUATION OF OIL AND GAS RESOURCE

X-ray diffraction analysis can be used for analysing the layer structure of aromatic cluster in organic macerals. The study shows that the structure of aromatic cluster of organic matter has a close relationship between its type and evolution degree. Some structural parameters have been obtaind by using X-ray diffraction analysis of organic macerals,such as height (Lc), width (La), inter plane spacing 4bki and the layer number of aromatic cluster can be regarded as the new indexes for the type, evolution degree and hydrocarbongenerating potential of source-rocks. Moreover, the regular change of the parameters and their significance are preliminarily discussed in this paper.