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Slow P‐Wave Attenuation Yielding From Berea Sandstone With Double Porosity.

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Title: Slow P‐Wave Attenuation Yielding From Berea Sandstone With Double Porosity.
Authors: Liu, Zhongyuan1 (AUTHOR), Li, Guangquan1 (AUTHOR) liguangquan@ynu.edu.cn, Ma, Tianshou1 (AUTHOR) matianshou@126.com
Source: Geofluids. 10/7/2025, Vol. 2025, p1-11. 11p.
Subjects: Porosity, Phase velocity, Attenuation (Physics), Hydraulic conductivity, Quality factor, Sandstone, Biot theory (Mechanics)
Abstract: Double porosity model differentiates fluid pressure between contact of grains (COG) and the main pore space. This study is motivated by determining phase velocity (Vps) and the quality factor (Qps) of slow P‐wave for double porosity rock. The trick is the use of the compressibility matrices calibrated from (ultrasonic) fast P‐wave data. Berea sandstone saturated with water is used for illustration. Double porosity models (with the real Darcy permeability kD and assumed‐zero kD) are both capable of well regenerating the phase velocity (Vp) and quality factor (Qp) of fast P‐wave ultrasonically measured on the sandstone. However, the two double porosity models yield considerably different Qp at frequencies exceeding 107 Hz. In addition, Biot theory is used as a single porosity model for the calculation of Vps and Qps. It is found that the double porosity model with the real kD is substantially different from the single porosity model in the resulting Vps at high frequencies. The results show that the behavior of slow P‐wave at frequencies higher than 105 Hz is governed by the double porosity model rather than the single porosity model. [ABSTRACT FROM AUTHOR]
Copyright of Geofluids is the property of Wiley-Blackwell 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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  Data: Slow P‐Wave Attenuation Yielding From Berea Sandstone With Double Porosity.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Zhongyuan%22">Liu, Zhongyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Guangquan%22">Li, Guangquan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liguangquan@ynu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Tianshou%22">Ma, Tianshou</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> matianshou@126.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Geofluids%22">Geofluids</searchLink>. 10/7/2025, Vol. 2025, p1-11. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Porosity%22">Porosity</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+velocity%22">Phase velocity</searchLink><br /><searchLink fieldCode="DE" term="%22Attenuation+%28Physics%29%22">Attenuation (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Hydraulic+conductivity%22">Hydraulic conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Quality+factor%22">Quality factor</searchLink><br /><searchLink fieldCode="DE" term="%22Sandstone%22">Sandstone</searchLink><br /><searchLink fieldCode="DE" term="%22Biot+theory+%28Mechanics%29%22">Biot theory (Mechanics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Double porosity model differentiates fluid pressure between contact of grains (COG) and the main pore space. This study is motivated by determining phase velocity (Vps) and the quality factor (Qps) of slow P‐wave for double porosity rock. The trick is the use of the compressibility matrices calibrated from (ultrasonic) fast P‐wave data. Berea sandstone saturated with water is used for illustration. Double porosity models (with the real Darcy permeability kD and assumed‐zero kD) are both capable of well regenerating the phase velocity (Vp) and quality factor (Qp) of fast P‐wave ultrasonically measured on the sandstone. However, the two double porosity models yield considerably different Qp at frequencies exceeding 107 Hz. In addition, Biot theory is used as a single porosity model for the calculation of Vps and Qps. It is found that the double porosity model with the real kD is substantially different from the single porosity model in the resulting Vps at high frequencies. The results show that the behavior of slow P‐wave at frequencies higher than 105 Hz is governed by the double porosity model rather than the single porosity model. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Geofluids is the property of Wiley-Blackwell 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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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1155/gfl/4563413
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 1
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      – SubjectFull: Porosity
        Type: general
      – SubjectFull: Phase velocity
        Type: general
      – SubjectFull: Attenuation (Physics)
        Type: general
      – SubjectFull: Hydraulic conductivity
        Type: general
      – SubjectFull: Quality factor
        Type: general
      – SubjectFull: Sandstone
        Type: general
      – SubjectFull: Biot theory (Mechanics)
        Type: general
    Titles:
      – TitleFull: Slow P‐Wave Attenuation Yielding From Berea Sandstone With Double Porosity.
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          Name:
            NameFull: Liu, Zhongyuan
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          Name:
            NameFull: Li, Guangquan
      – PersonEntity:
          Name:
            NameFull: Ma, Tianshou
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          Dates:
            – D: 07
              M: 10
              Text: 10/7/2025
              Type: published
              Y: 2025
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              Value: 14688115
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              Value: 2025
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            – TitleFull: Geofluids
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