Influence of electrode grounding resistance and churge-up effect on quality of cves-measurements

A. O. Alymov, E. V. Balkov, V. A. Beloborodov

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

DC resistivity data by using computer-controlled multi-channel multi-electrode arrays is be popular. While, acquisition speed are enormous, optimization of the measurement technique is necessary, in order to gather without loss of data quality. The analysis of field data from multi-channel resistivity-meter "Skala 64" shows that electrode charge-up effect is cause significant distortions of measuring potentials. This effect can be larger than the induced signal and have a significant amplitude during all time of measurements. Influence of electrode grounding resistance is much lower. An algorithm for linear correction had been realized and tested. If there is a short delay before measuring potentials is provided after an electrode is used for transmitting current, correction of the linear drift allows to exclude influence of charge-up effects.

Original languageEnglish
Title of host publicationEngineering and Mining Geophysics 2018 - 14th Conference and Exhibition
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822481
Publication statusPublished - 1 Jan 2018
Event14th Conference and Exhibition on Engineering and Mining Geophysics 2018 - Almaty, Kazakhstan
Duration: 23 Apr 201827 Apr 2018

Conference

Conference14th Conference and Exhibition on Engineering and Mining Geophysics 2018
CountryKazakhstan
CityAlmaty
Period23.04.201827.04.2018

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