Multi-array borehole resistivity and induced polarization method

Multi-coil electromagnetic focusing methods and apparatus to...

Multi-component induction instrument

Multi-component marine electromagnetic signal acquisition...

Multi-component resistivity logging tool with multiple...

Multi-depth focused resistivity imaging tool for logging...

Multi-frequency boring tool locating system and method

Multi-frequency boring tool locating system and method

Multi-frequency electromagnetic wave resistivity tool with...

Multi-frequency focusing for MWD resistivity tools

Multi-frequency in-ground locating signal frequency code...

Multi-mode microresistivity tool in boreholes drilled with...

Multi-mode oil base mud imager

Multi-sensor system for the detection and characterization...

Multifrequency locating arrangement with frequency designation

Multifrequency method for direct airborne electromagnetic prospe

Multifrequency signal transmitter with attenuation of selected h

Multiple depths and frequencies for simultaneous inversion of el

Multiple frequency based leakage correction for imaging in...

Multiple frequency electric excitation method and identifying co