Well
Transmitter
Movable electrode P1 set at each station
Recorder
Prefilter
Recorder
Fixed electrode P2 as a reference electrode
Current electrode whose location is about 6km apart from LB-4D Well
Conceptual Illustration of Mise-a-la-masse electrodes configuration

Two current electrodes and three potential electrodes are used for the measurements. One current electrode, C1, is connected to the well casing head.The other current electrode, C2, is earthed at about 6km far from the well. As current electrode, cupper plates are used by burying them in muddy ground. In order to decrease the contact resistance, salt is scattered in soil as electrolytes. Two reference potential electrodes are used during data acquisition. One of them, P2, is located at about 3km from the other one, P2, which is located besides well head.





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