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...http://www.google.fr/patents/US20050030038?utm_source=gb-gplus-shareBrevet US20050030038 - APPARATUS AND METHODS FOR REDUCING BOREHOLE CURRENT EFFECTS
APPARATUS AND METHODS FOR REDUCING BOREHOLE CURRENT EFFECTS
Numéro de demande: 10/604,622 Numéro de publication: US 2005/0030038 A1 Date de dépôt: 5 août 2003 Brevet délivré: US6933726 ( Date de délivrance 23 août 2005)