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Hydrocarbon micro-seepage detection by altered minerals mapping from airborne hyper-spectral data in Xifeng Oilfield, China.

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Title: Hydrocarbon micro-seepage detection by altered minerals mapping from airborne hyper-spectral data in Xifeng Oilfield, China.
Authors: Chen, Shengbo1, Zhao, Ying1 luckyrs@163.com, Zhao, Liang1, Liu, Yanli1, Zhou, Chao1
Source: Journal of Earth Science. Aug2017, Vol. 28 Issue 4, p656-665. 10p.
Subject Terms: *Hydrocarbons, *Oxidation-reduction reaction, *Silt, *Carbonates, *X-ray diffraction
Abstract: Hydrocarbon micro-seepage can cause oxidation reduction reactions and produce altered minerals in surface sediments and soil. The typical altered minerals mapping by their diagnostic spectral features on hyper-spectral images is an important tool for the petroleum exploration industry. In this study, the airborne hyper-spectral data were used to investigate the altered minerals induced by hydrocarbon micro-seepages by spectral feature fitting (SFF) in the loess coverage area of Xifeng Oilfield. The results reveal that the distribution region of the altered minerals induced by hydrocarbon micro-seepage is larger than the known oilfield exploration area. The potential hydrocarbon micro-seepage region was also revealed by the distribution of altered minerals besides the known hydrocarbon area. A fast index was proposed by the absorption depths of clay and carbonate minerals for assessment of hydrocarbon microseepage. And it gave much clearer boundaries for the hydrocarbon micro-seepage in the loess coverage area than those by the altered mineral mapping. In addition, some field samples were analyzed by X-ray diffraction (XRD) and atomic absorption spectrophotometer to validate the results. Within the extents of hydrocarbon micro-seepage, there are lower contents of ferric iron and higher contents of carbonate minerals in these samples. Therefore, it is satisfactory to have the airborne hyper-spectral data to outline the extents of hydrocarbon micro-seepage for further hydrocarbon exploration in the loess coverage area. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 124332272
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Hydrocarbon micro-seepage detection by altered minerals mapping from airborne hyper-spectral data in Xifeng Oilfield, China.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Shengbo%22">Chen, Shengbo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Ying%22">Zhao, Ying</searchLink><relatesTo>1</relatesTo><i> luckyrs@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Liang%22">Zhao, Liang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Yanli%22">Liu, Yanli</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Chao%22">Zhou, Chao</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Earth+Science%22">Journal of Earth Science</searchLink>. Aug2017, Vol. 28 Issue 4, p656-665. 10p.
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  Data: *<searchLink fieldCode="DE" term="%22Hydrocarbons%22">Hydrocarbons</searchLink><br />*<searchLink fieldCode="DE" term="%22Oxidation-reduction+reaction%22">Oxidation-reduction reaction</searchLink><br />*<searchLink fieldCode="DE" term="%22Silt%22">Silt</searchLink><br />*<searchLink fieldCode="DE" term="%22Carbonates%22">Carbonates</searchLink><br />*<searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Hydrocarbon micro-seepage can cause oxidation reduction reactions and produce altered minerals in surface sediments and soil. The typical altered minerals mapping by their diagnostic spectral features on hyper-spectral images is an important tool for the petroleum exploration industry. In this study, the airborne hyper-spectral data were used to investigate the altered minerals induced by hydrocarbon micro-seepages by spectral feature fitting (SFF) in the loess coverage area of Xifeng Oilfield. The results reveal that the distribution region of the altered minerals induced by hydrocarbon micro-seepage is larger than the known oilfield exploration area. The potential hydrocarbon micro-seepage region was also revealed by the distribution of altered minerals besides the known hydrocarbon area. A fast index was proposed by the absorption depths of clay and carbonate minerals for assessment of hydrocarbon microseepage. And it gave much clearer boundaries for the hydrocarbon micro-seepage in the loess coverage area than those by the altered mineral mapping. In addition, some field samples were analyzed by X-ray diffraction (XRD) and atomic absorption spectrophotometer to validate the results. Within the extents of hydrocarbon micro-seepage, there are lower contents of ferric iron and higher contents of carbonate minerals in these samples. Therefore, it is satisfactory to have the airborne hyper-spectral data to outline the extents of hydrocarbon micro-seepage for further hydrocarbon exploration in the loess coverage area. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=124332272
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      – Type: doi
        Value: 10.1007/s12583-015-0604-1
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 656
    Subjects:
      – SubjectFull: Hydrocarbons
        Type: general
      – SubjectFull: Oxidation-reduction reaction
        Type: general
      – SubjectFull: Silt
        Type: general
      – SubjectFull: Carbonates
        Type: general
      – SubjectFull: X-ray diffraction
        Type: general
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      – TitleFull: Hydrocarbon micro-seepage detection by altered minerals mapping from airborne hyper-spectral data in Xifeng Oilfield, China.
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            NameFull: Chen, Shengbo
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            NameFull: Zhao, Ying
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            NameFull: Zhao, Liang
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            NameFull: Liu, Yanli
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            NameFull: Zhou, Chao
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            – D: 01
              M: 08
              Text: Aug2017
              Type: published
              Y: 2017
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              Value: 28
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              Value: 4
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            – TitleFull: Journal of Earth Science
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