Definition - What does Electrode Device mean?
An Electrode Device is a logging tool which is based on the arrangement of simple metallic electrodes which work at a low frequency. It includes conventional micrologs, electrical logs, laterlogs and various other microresistivity logs. The device is used for both measurement while drilling and wireline logs. The voltage and current in the Electrode Device can be measured on convenient electrodes or on the combination of electrodes. It is used to provide current via nonmetal objects and measure conductivity.
Petropedia explains Electrode Device
The Electrode Device is basically used for the purpose of logging and is considered as a logging tool which is basically the arrangement of metallic electrodes used in MWD and wireline logs. Appropriate electrodes or combination of electrodes are required for measuring the current and voltage in the device. The electrodes are the electromagnetic cells which are either anodes or cathodes. The electrons leave the cell at the anodes and enter the cells at cathodes and reduction takes place. Electrode devices are also used for measuring electrode resistivity.