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首页> 外文期刊>Fuel >Nuclear magnetic resonance spectroscopy of crude oil as proxies for oil source and thermal maturity based on ~1H and ~(13)C spectra
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Nuclear magnetic resonance spectroscopy of crude oil as proxies for oil source and thermal maturity based on ~1H and ~(13)C spectra

机译：原油核磁共振光谱作为油源的代理和基于〜1H和〜（13）C光谱的热成熟度

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摘要

Nuclear magnetic resonance (NMR) approach has unique advantages in the geochemical analysis of crude oil because it can provide information on chemical functional groups. Previous studies have focused on marine crude oils and investigated the interrelationship between the H-1 spectra and physical properties of the oil. However, the organic geochemical significance of the comprehensive NMR information and its effectiveness for studying non-marine crude oil are still not clear. Here we investigated crude oil from the Eocene Shahejie Formation in the lacustrine Dongpu Sag, Bohai Bay Basin, China, with NMR techniques. Our results show that the NMR spectra of these crude oils provide important information on organic matter functional groups, including aliphatic hydrocarbons, cycloalkanes, aromatic hydrocarbons, and other structural types. The NMR parameters of the studied crude oils reliably reflect the source rock sedimentary environment, and organic matter source and thermal maturity. Comparatively, H-1 and C-13 NMR spectra are useful for evaluating organic matter source and thermal maturity, respectively. It was found that the organic matter that produced crude oil in the northern part of the basin is of better quality, and deposited in a higher-salinity and more reducing sedimentary environment, than in the south. The sedimentary environment in the central part of the basin reflects transitional characteristics with large variation. This complements our understanding of traditional organic (biomarker) geochemistry. Our data show that NMR parameters robustly reflect the chemistry of crude oil, particularly the composition of functional groups, and its geochemical application to studies of crude oil can be further expanded, from marine to non-marine, from H-1 spectroscopy to C-13 spectroscopy, and from physical property to geochemical characterization.
机译：核磁共振（NMR）方法在原油的地球化学分析中具有独特的优势，因为它可以提供有关化学官能团的信息。以前的研究专注于海洋原油，并研究了H-1光谱与油的物理性质之间的相互关系。然而，综合NMR信息的有机地球化学意义及其研究非海洋原油的有效性仍未清楚。在这里，我们调查了中国渤海湾盆地渤海湾盆地的九世沙河街道株式会山脉的原油。我们的研究结果表明，这些原油的NMR光谱提供了有机物质官能团的重要信息，包括脂族烃，环烷烃，芳烃和其他结构类型。研究的原油的NMR参数可靠地反映源岩沉积环境，有机物源和热成熟度。相比之下，H-1和C-13 NMR光谱分别可用于评估有机物源和热成熟度。结果发现，在盆地北部产生原油的有机物具有更好的质量，并且沉积在更高盐度和更低的沉积环境中，比南部更低。盆地中部的沉积环境反映了具有大变异的过渡特性。这补充了我们对传统有机（Biomarker）地球化学的理解。我们的数据表明，NMR参数强大地反映了原油的化学，特别是官能团的组成，其地球化学应用可以从海洋到非海洋，从H-1光谱到C-进一步扩展到原油的地球化学应用。 13光谱学，以及地球化学特征的物理性质。

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  • 来源
    《Fuel》 |2020年第jul1期|117622.1-117622.12|共12页
  • 作者

    Gao Guohui; Cao Jian; Xu Tianwu; Zhang Hongan; Zhang Yunxian; Hu Kai;

  • 作者单位

    Nanjing Univ Sch Earth Sci & Engn MOE Key Lab Surficial Geochem Nanjing 210023 Jiangsu Peoples R China;

    Nanjing Univ Sch Earth Sci & Engn MOE Key Lab Surficial Geochem Nanjing 210023 Jiangsu Peoples R China;

    SINOPEC Zhongyuan Oil & Gas Field Co Res Inst Petr Explorat & Exploitat Puyang 457001 Henan Peoples R China;

    SINOPEC Zhongyuan Oil & Gas Field Co Res Inst Petr Explorat & Exploitat Puyang 457001 Henan Peoples R China;

    SINOPEC Zhongyuan Oil & Gas Field Co Res Inst Petr Explorat & Exploitat Puyang 457001 Henan Peoples R China;

    Nanjing Univ Sch Earth Sci & Engn MOE Key Lab Surficial Geochem Nanjing 210023 Jiangsu Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Oil geochemistry; H-1 and C-13 nuclear magnetic resonance (NMR); Lacustrine facies; Eocene Shahejie Formation; Dongpu Bag; Bohai Bay Basin;

    机译：石油地球化学;H-1和C-13核磁共振（NMR）;湖泊面;eocene Shahejie地层;东圃包;渤海湾盆地;

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