摘要:
生油岩中多环芳烃的复杂结构及其烷基系列的存在,已于去年研究及文献所证实。即根据低电压质谱,测定氯仿抽提物中的芳烃,含有CnH2n-p(p:6、8、10……28)的不同碳数侧链的烷基芳烃和环烷芳烃,得到这样的结论:成熟度低的生油岩中含有较多的短侧链双芳和三芳的烷基芳烃。本文试图根据气相色谱分析资料，找到某些典型芳化物与其热演化的关系，为研究生油岩有机质成熟度及沉积环境，提供新的地化参数。
Abstract:
Polyclic aromatic hydrocarbons(PAH)in source rock from Wells A 3 and Sai 1 of the Erlian basin ofNeimongol autonomous Region are taken for examples.In this article alkylnaphth-alene and alkylphenathrene homologs of the short chains, flouranthene, pyrene, mephylpyene, benz(a)anthracene; perylene, etc.are identified and quantified by GC and GC-MS. Pimanthrene(1，7-dimethylphe-manthrene)，retene(1 -methyl一7-isopropyl phenanthrene)and 1-methyl-7-isop-ropyl-1，2，3，4-tetrahy drophenanthrene regarded as representative materials of high plant lipide have been found in different depths of PAH in source rock.The relative contents of alkylphenanthrenes(phenanthrene, C1一Phenanthrene,C2一phenanthrene, retene, etc.)exhibiting gradual changes with increasing depth in aromatic fraction of sedimentary rocks from the two wells in different depths are calculated and revealed in this article.It seems that the changes can reflect the maturity of source rocks.The unclear changes of relative contents of fluran thene, pyrene, etc.R-ith different depths are discussed as well。
点击查看大图
下载:
