1887

Abstract

1D inversion of electromagnetic, (EM), data is a fast, effective method for generating reasonable subsurface resistivity models. In order to be interpretable 1D EM inversions are normally collated into a 2D resistivity section. A common method is to place each model at a lateral position associated with the measurement. For Multi-Transient Electromagnetic, (MTEM), data the Common Midpoint, (CMP), of the source and receiver positions is usually used. This works well when we are able to invert the data in CMP gathers, however in the presence of complicated geology this is not always possible. In this case each transient must be inverted singly, resulting in more than one model per CMP. The new algorithm resistive target positioning, (RTP), uses all these 1D models and the array sensitivity of the MTEM acquisition to create a 2D resistivity section. This avoids the artefacts commonly found when generating a 2D section from CMP positioned 1D inversion models, and allows the use of a whole dataset.

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/content/papers/10.3997/2214-4609.20147965
2008-06-09
2020-11-29
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20147965
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