张婷,王作栋,钱宇,王永莉,李晓斌,宋红莎
ZHANG Ting,WANG Zuodong,QIAN Yu,WANG Yongli,LI Xiaobin,SONG Hongsha

• 1:中国科学院油气资源研究重点实验室
• 2:中国科学院大学

摘要(Abstract)：

对华北中元古界下马岭组低熟海相页岩进行温压(Ⅰ系列)和温控(Ⅱ系列)模拟实验,并对原始样品和实验过程中的液态产物进行GCMS分析。结果表明:样品含较高丰度的菲、艹屈、萘等系列化合物,液态产物中检出了实验过程中新产生的蒽、甲基蒽和苯并萘并噻吩;随着温度的升高,菲系列中丰度较高的9-甲基菲、1-甲基菲逐渐向热稳定性更好的3-甲基菲、2-甲基菲转化,菲的相对丰度先减小后增大;模拟实验样品中检出的蒽系列化合物与温度呈正相关,表明其来源与热演化过程有关;温压实验过程中检测出丰度较高的苯并萘并噻吩,而其他温度段几乎检测不到,说明该化合物的形成需要适当的温度和压力;压力增大会抑制菲的烷基化和抑制蒽系列化合物形成,但会促进9-甲基菲的转化和苯并萘并噻吩的形成。
Temperature-pressure experiments were conducted on the low-maturity marine shale of Mesoproterozoic Xiamaling Formation in North China,containing pressure controlled experiments( Series Ⅰ) and temperature controlled experiments( Series Ⅱ),and moreover the analyses on the original samples and the liquid products in the experiments were dealt with by GC-MS. The results show that the samples contain abundant phenanthrene,chrysene,naphthalene etc,and the newly produced anthracene,methylanthracene and naphthobenzothiophene were detected in the liquid products in the process of the experiments; with the increase of the temperature,the high-abundance 9-methylphenanthrene and 1-methylphenanthrene are transformed gradually to more stable 3-meth-ylphenanthrene and 2-methylphenanthrene,the relative abundance of the phenanthrene first decreases and then increases; the checked out anthracene series compounds in the simulating experiment samples are positively correlated with the temperature,these conditions indicate that the sources of the anthracene series compounds are related to the thermal evolution process; the high-abundance naphthobenzothiophene is detected in Series I,while it is undetectable in the other temperature intervals,these phenomena indicate that the compound formation needs proper temperature and pressure; the greater pressure will not only inhibit the alkylation of the phenanthrene and the generation of the anthracene series compounds,but also promote the conversion of 9-methylphenanthrene and the formation of the naphthobenzothiophene.

关键词(KeyWords)： 下马岭组;低熟海相页岩;温压模拟实验;菲系列;蒽系列;苯并萘并噻吩
Xiamaling Formation;low-maturity marine shale;temperature-pressure simulating experiment;phenanthrene series;anthracene series;naphthobenzothiophene

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“氦气资源在天然气藏中的聚集规律研究”(416721);; 兰州油气资源研究中心“十三五”创新基金“地质条件下温度对甾烷形成和分布的影响研究”(135CCJJ20160523);; 甘肃省油气资源研究重点实验室开放课题基金“海相烃源岩热解产物及微量杂原子化合物色谱质谱定量分析方法研究”(SZDKFJJ20150605)

作者(Author): 张婷,王作栋,钱宇,王永莉,李晓斌,宋红莎
ZHANG Ting,WANG Zuodong,QIAN Yu,WANG Yongli,LI Xiaobin,SONG Hongsha

DOI: 10.19597/J.ISSN.1000-3754.201705031

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