DEVICE AND METHOD FOR REDUCING WELL CURRENTS EFFECTS

DEVICE AND METHOD FOR REDUCING WELL CURRENTS EFFECTS

FIELD: mechanics; mining. ^ SUBSTANCE: well-logging tool comprises a conducting drift, antenna array arranged around aforesaid conducting drift, a coupling fitted above the said antenna array and at least one contact spacer. The aforesaid antenna array incorporates multiple antennas fitted on insula...

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Bibliographische Detailangaben
Hauptverfasser: BONNER STEFEN D, KHEJZEN GEHRI A, CHEN KUO CHIANG, SMIT ROBERT K, BARBER TOMAS D, ROSTAL RICHARD A, KIBBE CHARL'Z, OLIVER DEHVID T
Format: Patent
Sprache:eng ; rus
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:FIELD: mechanics; mining. ^ SUBSTANCE: well-logging tool comprises a conducting drift, antenna array arranged around aforesaid conducting drift, a coupling fitted above the said antenna array and at least one contact spacer. The aforesaid antenna array incorporates multiple antennas fitted on insulated supports. Note that at least one contract spacer comprises at least one conducting channel accommodating a contact block. The aforesaid coupling houses at least one electrode. At least one electrode and contact block make a radial conducting circuit running from the outer surface of the well-logging tool into the conducting drift. ^ EFFECT: ruling out well current effects. ^ 12 cl, 10 dwg