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| | Abstract | | We have carried out streamer resistivity survey in shallow marine environments to evaluate hydrogeological sequences and sediment characteristics at the bottom of blackish reservoir. Because the resistivity values of reservoir water are very low and those of sediment are relatively high, apparent resistivity values increase with depth. To eliminate the apparent resistivity data decreased highly as the number of separation increases, it is proposed the resistivity ratio of upper-to-lower layer is 0.6-0.8 because the RMS error of inversion leads to the minimum in these range. As a result of the inversion for two- and three-layer model, the inversion including water depth is proved to be more effective than conventional method. |
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