Invention Application
US20050030038A1 APPARATUS AND METHODS FOR REDUCING BOREHOLE CURRENT EFFECTS 有权
减少井眼电流效应的装置和方法

APPARATUS AND METHODS FOR REDUCING BOREHOLE CURRENT EFFECTS
Abstract:
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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