Electrical geophysical methods and apparatus for determining the
Electrical logging sensor having conductive and insulating porti
Electrical measurement apparatus and method for measuring an...
Electrical resistance tomography using steel cased boreholes as
Electrical resistivity probes
Electrical voltages and resistances measured to inspect...
Electrical well logging tool, having an expandable sleeve, for d
Electrode array construction featuring current emitting electrod
Electrode array for marine electric and magnetic field...
Electrode array for measurement of borehole resistivity
Electrode configuration for resistivity sounding
Electrode prospecting method providing calculable electromagneti
Electrode structure and streamer made therewith for marine...
Electrodes incorporating intercalation compounds for mangetotell
Electromagnetic array profiling survey method
Electromagnetic imaging device and method for delineating anomal
Electromagnetic method on shallow water using a controlled...
Electromagnetic surveying for resistive or conductive bodies
Electromagnetic surveying for resistive or conductive bodies
Electronic measurement apparatus movable in a cased borehole and