specially adapted for well-logging

Full Title

Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation > specially adapted for well-logging

Child Classifications

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• G01V 3/20 operating with propagation of electric current
• G01V 3/26 operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device (with electromagnetic waves G01V3/30)
• G01V 3/30 operating with electromagnetic waves
• G01V 3/32 operating with electron or nuclear magnetic resonance
• G01V 3/34 Transmitting data to recording or processing apparatus; Recording data