Invention Application
- Patent Title: APPARATUS AND METHODS FOR REDUCING BOREHOLE CURRENT EFFECTS
- Patent Title (中): 减少井眼电流效应的装置和方法
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Application No.: US10604622Application Date: 2003-08-05
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Publication No.: US20050030038A1Publication Date: 2005-02-10
- Inventor: KUO-CHIANG CHEN , ROBERT SMITH , GARY HAZEN , CHARLES KIBBE , RICHARD ROSTHAL , THOMAS BARBER , STEPHEN BONNER , DAVID OLIVER
- Applicant: KUO-CHIANG CHEN , ROBERT SMITH , GARY HAZEN , CHARLES KIBBE , RICHARD ROSTHAL , THOMAS BARBER , STEPHEN BONNER , DAVID OLIVER
- Main IPC: G01V3/28
- IPC: G01V3/28 ; G01V3/18

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.
Public/Granted literature
- US06933726B2 Apparatus and methods for reducing borehole current effects Public/Granted day:2005-08-23
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