Apparatus and methods for reducing borehole current effects

Details Apparatus and methods for reducing borehole current effects Apparatus and methods for reducing borehole current effects

G - Physics

01

V

G01V 3/28 (2006.01) G01V 3/26 (2006.01) E21B 47/00 (2006.01)

Patent

CA 2472855

A well logging tool includes a conductive mandrel; an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein; and a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel.

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