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2D Optimisation of Electrode Arrays for Borehole Surveys
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface 2009 - 15th EAGE European Meeting of Environmental and Engineering Geophysics, Sep 2009, cp-134-00055
- ISBN: 978-90-73781-72-6
Abstract
An application of a new approach of 2D optimisation of electrode configurations is presented for borehole and surface-to-borehole surveys. The applied optimisation algorithm includes the sensitivities of the data and search for arrays that maximize the survey resolution. The resulting optimised data set has a practical size (≤ 7.5% of the comprehensive set) but almost the same resolution. Two applications to a resistive CO2 plume (of varying thicknesses and saturations) sequestrated in a conductive reservoir and resistive/conductive root zone in sandy soils have been presented as a function different configurations and inversion setups here and in Petersen and Hagrey (2009).