Apparatus including an equipotential housing and plurality of fo

Apparatus with capacitive electrodes for measuring...

Apparatus with movable receiver coil array for locating a...

Applications of wideband EM measurements for determining...

Arm apparatus for pad-type logging devices

Arrangement for detecting the location of an electrically insula

Arrangement of the electrodes for an electrical logging system f

Arrangement using measured pitch and locating field...

Automatic classifier for electric wire detector

Automatic gain control for a line locator

Automatic impedance matching conduit locator

Avoiding ghosting artifacts during surface location of subsurfac

Axial resolution enhancement method for resistivity well logs wh

Azimuthally oriented coil array for MWD resistivity logging

Azimuthally segmented resistivity measuring apparatus and method