Trespolesystem med korte ikke-ledende innsatser for transiente MWD-resistivitetsmålinger

A three-coil bucking system is used for determination of a formation resistivity property ahead of the drill bit. The conductive drill pipe is provided with non-conductive inserts in the proximity of at least one transmitter and at least two receivers. Transient electromagnetic signals are processed...

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Bibliographic Details
Main Authors Itskovich, Gregory B, Reiderman, Arcady
Format Patent
LanguageNorwegian
Published 10.08.2020
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:A three-coil bucking system is used for determination of a formation resistivity property ahead of the drill bit. The conductive drill pipe is provided with non-conductive inserts in the proximity of at least one transmitter and at least two receivers. Transient electromagnetic signals are processed to give the estimate of the resistivity property and for geosteering.
Bibliography:Application Number: NO20120001233