Making EM systems and bore logs speak the same language

A. Davis, Juerg Hauser
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Abstract

Summary Borehole induction logs, together with lithology records, are valuable for inferring geological and geophysical features in the subsurface. They offer insight in the relationship between geology and geophysics, and are an important source of information for determining the success of a planned airborne electromagnetic (AEM) survey for recovering features of interest. Often, bore logs are used as the ‘ground-truth for an AEM system, and are employed for system selection pre-survey and ‘validation’ post-survey. We discuss the use of electromagnetic borehole logs for calibrating and validating AEM survey results in a sensible way: by comparing the measurements at the resolution power of the AEM system itself.
使电磁系统和钻孔日志说同一种语言
钻孔感应测井与岩性记录一起,对推断地下地质和地球物理特征具有重要价值。它们为地质学和地球物理学之间的关系提供了见解,并且是决定计划中的机载电磁(AEM)调查是否成功以恢复感兴趣的特征的重要信息来源。通常,井眼测井被用作AEM系统的“地面真相”,并用于系统选择预测量和“验证”后测量。我们讨论了使用电磁井眼测井来标定和验证AEM测量结果,以一种合理的方式:通过比较AEM系统本身分辨率的测量结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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