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Geochemical study and significance of sequential extraction in reservoir rocks of Turpan-Hamin Basin.

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Title: Geochemical study and significance of sequential extraction in reservoir rocks of Turpan-Hamin Basin.
Authors: Yu Linping1, Pan Changchun1 cpan@gig.ac.cn, Fu Jiamo1
Source: Chinese Science Bulletin. Dec2004 Supplement, Vol. 49, p32-38. 6p.
Subjects: Geochemistry, Rocks, Reservoirs, Geological basins, Structural geology, Mudstone
Abstract: Seven samples collected from the Turpan-Hamin Basin were treated by sequential extraction method. Analytical results indicate that the free oils, inclusion oils (oil-bearing fluid inclusions) and clay-adsorbed oils vary significantly. The geochemical characteristics of inclusion and clay-adsorbed oils correlate well with the lacustrine mudstones. The characteristics are as follows: (i) with higher Ph/nC18 ratio and lower Pr/Ph ratio; (ii) with higher values of C26 tricyclic/C24 tetracyclic terpane, C23 tricyclic terpane/(C23 tricyclic terpane+C3017α(H) hopane), C21/(C21+C29) sterane, Ts/Tm and C29Ts/C2917α(H) norhopane and lower value of C19/C21 tricyclic terpane; (iii) with relatively high content of C27 and C28 sterane and lower abundance of C29 sterane and diasterane. They indicate that the early charged oils are derived from the pre-Jurassic lacustrine mudstones and the later charged oils are from the Jurassic coal-bearing strata or coals. [ABSTRACT FROM AUTHOR]
Copyright of Chinese Science Bulletin is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Label: Title
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  Data: Geochemical study and significance of sequential extraction in reservoir rocks of Turpan-Hamin Basin.
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  Data: <searchLink fieldCode="AR" term="%22Yu+Linping%22">Yu Linping</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pan+Changchun%22">Pan Changchun</searchLink><relatesTo>1</relatesTo><i> cpan@gig.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Fu+Jiamo%22">Fu Jiamo</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Chinese+Science+Bulletin%22">Chinese Science Bulletin</searchLink>. Dec2004 Supplement, Vol. 49, p32-38. 6p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Geochemistry%22">Geochemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Rocks%22">Rocks</searchLink><br /><searchLink fieldCode="DE" term="%22Reservoirs%22">Reservoirs</searchLink><br /><searchLink fieldCode="DE" term="%22Geological+basins%22">Geological basins</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+geology%22">Structural geology</searchLink><br /><searchLink fieldCode="DE" term="%22Mudstone%22">Mudstone</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Seven samples collected from the Turpan-Hamin Basin were treated by sequential extraction method. Analytical results indicate that the free oils, inclusion oils (oil-bearing fluid inclusions) and clay-adsorbed oils vary significantly. The geochemical characteristics of inclusion and clay-adsorbed oils correlate well with the lacustrine mudstones. The characteristics are as follows: (i) with higher Ph/nC18 ratio and lower Pr/Ph ratio; (ii) with higher values of C26 tricyclic/C24 tetracyclic terpane, C23 tricyclic terpane/(C23 tricyclic terpane+C3017α(H) hopane), C21/(C21+C29) sterane, Ts/Tm and C29Ts/C2917α(H) norhopane and lower value of C19/C21 tricyclic terpane; (iii) with relatively high content of C27 and C28 sterane and lower abundance of C29 sterane and diasterane. They indicate that the early charged oils are derived from the pre-Jurassic lacustrine mudstones and the later charged oils are from the Jurassic coal-bearing strata or coals. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chinese Science Bulletin is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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    Identifiers:
      – Type: doi
        Value: 10.1007/BF02890451
    Languages:
      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 32
    Subjects:
      – SubjectFull: Geochemistry
        Type: general
      – SubjectFull: Rocks
        Type: general
      – SubjectFull: Reservoirs
        Type: general
      – SubjectFull: Geological basins
        Type: general
      – SubjectFull: Structural geology
        Type: general
      – SubjectFull: Mudstone
        Type: general
    Titles:
      – TitleFull: Geochemical study and significance of sequential extraction in reservoir rocks of Turpan-Hamin Basin.
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            NameFull: Yu Linping
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            NameFull: Pan Changchun
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            NameFull: Fu Jiamo
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            – D: 02
              M: 12
              Text: Dec2004 Supplement
              Type: published
              Y: 2004
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              Value: 10016538
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              Value: 49
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            – TitleFull: Chinese Science Bulletin
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