Resistivity Imaging at the End of a Survey Line using Boreholes

초록

Two-dimensional electrical resistivity surveys have difficulty in identifying the electrical resistivity distribution at both ends of the survey line due to insufficient data coverage. To overcome this limitation, the length of the survey line must be extended. However, depending on the field situation, it is often not permitted to extend the survey line. This study proposes a method to effectively image the electrical resistivity at both ends of the survey line by combining surface and borehole surveys to overcome this problem. The effectiveness of the proposed method was analyzed through numerical experiments, and its applicability was examined through inversion of field data.

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