Raman Spectroscopic Characteristics of Macromolecular Hydrocarbons and Its Significance in the Study of Hydrocarbon Inclusions
详细信息
- 责任者：Zhang Nai (State Key Laboratory of Enhanced Oil Recovery ; Research Institute of Petroleum Exploration and Development ; Beijing 100083 ; China) ; Mao Guangjian
- 刊名：Geochimica
- 出版年：2010
- 卷期：39(4)
- 关键词：烃类 ; petroleum products ; 流体包裹体 ; fluid inclusions
- 页码：p.345-353
- 图表：12 illus., 24 refs.
- 分类号：1003
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
Raman analysis shows that macromolecular hydrocarbons have the similar Raman spectrograms. Raman spectrograms of hydrocarbon depend on carbon skeleton of alkanes, and number of naphthenic and aromatics rings. Therefore, macromolecular hydrocarbons have four kinds of Raman spectra: simple alkanes, complex alkanes(in naphthene base-based), the flat-linked aromatics and the complex aromatics. Hydrocarbon is the major components of petroleum. Thus, hydrocarbon inclusions, as the petroleum wrapped in minerals, have only four kinds of Raman spectrograms: fluorescent hydrocarbon fluid inclusion, bituminous inclusion, low carbon number aromatic hydrocarbon inclusion, and alkane inclusion. Although laser Raman analysis can not determine the actual compositions of hydrocarbon inclusions, it is able to provide bulk characteristics of the hydrocarbon inclusions. Therefore, some information, such as composition characteristics of hydrocarbon inclusions, maturity of paleo-oil reservoir, and oil and gas evolution, can be presented by the Raman spectroscopic characteristics of hydrocarbon inclusions.