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二甲基二苯并噻吩生成实验及地球化学意义

吴嘉 齐雯 罗情勇 陈泉 师生宝 李美俊 钟宁宁

吴嘉, 齐雯, 罗情勇, 陈泉, 师生宝, 李美俊, 钟宁宁. 二甲基二苯并噻吩生成实验及地球化学意义[J]. 石油实验地质, 2019, 41(2): 260-267. doi: 10.11781/sysydz201902260
引用本文: 吴嘉, 齐雯, 罗情勇, 陈泉, 师生宝, 李美俊, 钟宁宁. 二甲基二苯并噻吩生成实验及地球化学意义[J]. 石油实验地质, 2019, 41(2): 260-267. doi: 10.11781/sysydz201902260
WU Jia, QI Wen, LUO Qingyong, CHEN Quan, SHI Shengbao, LI Meijun, ZHONG Ningning. Experiments on the generation of dimethyldibenzothiophene and its geochemical implications[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(2): 260-267. doi: 10.11781/sysydz201902260
Citation: WU Jia, QI Wen, LUO Qingyong, CHEN Quan, SHI Shengbao, LI Meijun, ZHONG Ningning. Experiments on the generation of dimethyldibenzothiophene and its geochemical implications[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(2): 260-267. doi: 10.11781/sysydz201902260

二甲基二苯并噻吩生成实验及地球化学意义

doi: 10.11781/sysydz201902260
基金项目: 

国家重点研发计划"超深层环境油气生成与烃源灶有效性评价"(2017YFC0603102)、国家自然科学基金青年项目"含水体系中二苯并噻吩热稳定性的实验研究"(41403049)和油气资源与探测国家重点实验室自主课题"沥青质次级结构与中小分子的相互作用"(PRP/indep-3-1715)联合资助。

详细信息
    作者简介:

    吴嘉(1984-),男,博士,副教授,从事油气地球化学和实验地球化学研究。E-mail:jia.wu@cup.edu.cn。

  • 中图分类号: TE122.1

Experiments on the generation of dimethyldibenzothiophene and its geochemical implications

  • 摘要: 二苯并噻吩类化合物(DBTs)是当前油气地球化学研究中常用的一类分子标志化合物,但因其地质成因机理尚存争论,导致与之相关的地化参数大多源自经验,缺乏理论基础。在10 MPa和200~500℃下,对3,3'-二甲基联苯和单质硫混合物进行封闭体系热模拟实验。结果表明,在无催化条件下由联苯类化合物生成DBTs具有特定的空间选择性。在地质条件下该反应所需的温度可低于200℃,因为体系压力的增加可降低反应门限温度。与实际地质样品相似,随着温度的升高,产物中不同甲基取代位的DBTs相对含量会发生变化,进而导致热成熟度参数MDR(4-/1-MDBT)先升高后降低。因此,MDR作为成熟度参数时需要结合实际地质条件,在合适的成熟度范围内使用。

     

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  • 收稿日期:  2018-08-17
  • 修回日期:  2019-01-25
  • 刊出日期:  2019-03-28

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