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New Methodology for Computation of the Earth’s Polarizability from Telluric Borehole Logging Measurements Taken at Different Frequencies

机译:在不同频率下通过碲化钻孔测井测量来计算地球极化率的新方法

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摘要

An important approach for computation of the earth’s polarizability is achieved by developing a novel method with new parameters called Natural Percent Frequency Effect (NPFE) and Natural Metal Factor (NMF) resulting from telluric logging data taken at different frequencies. The essential advantage of the developed approach relies on using natural electrical currents instead of an artificial electrical source usually needed in the standard frequency domain applied in the induced polarization method. Furthermore, a good qualitative correlation has been found between the new parameters and those of the traditional induced polarization method obtained in time and frequency domains. The new method has been tested in well 32 in the Rouez mine in France, where sulphide mineralization is well known to occur.
机译:通过开发一种具有新参数的新方法,该方法是计算地球极化率的一种重要方法,该新参数称为自然百分比频率效应(NPFE)和自然金属因子(NMF),该参数来自不同频率的碲测井数据。所开发方法的主要优点在于使用自然电流代替通常在感应极化方法中应用的标准频域中所需的人工电源。此外,在新参数与在时域和频域中获得的传统感应极化方法的参数之间已经发现了良好的质量相关性。这项新方法已经在法国的鲁埃兹(Rouez)矿井的32口井中进行了测试,众所周知该处会发生硫化物矿化。

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  • 来源
    《Pure and Applied Geophysics》 |2004年第8期|1749-1775|共27页
  • 作者

    Jamal Asfahani;

  • 作者单位

    Geology Department Atomic Energy Commission;

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  • 正文语种 eng
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