LOGGING TOOL FERRITES AND METHODS OF MANUFACTURE

A method of fabricating a ferrite for use in a resistivity logging tool includes mixing a ferrite powder with a binder to provide a mixture, and pressing the mixture into a mold to form the ferrite. The mold exhibits a specific geometry corresponding to a channel defined on an inner surface of a bob...

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Bibliographic Details
Main Author GRIFFING, Matthew Chase
Format Patent
LanguageEnglish
French
German
Published 06.06.2018
Subjects
BASIC ELECTRIC ELEMENTS
DETECTING MASSES OR OBJECTS
ELECTRICITY
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
INDUCTANCES
MAGNETS
MEASURING
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
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Summary:A method of fabricating a ferrite for use in a resistivity logging tool includes mixing a ferrite powder with a binder to provide a mixture, and pressing the mixture into a mold to form the ferrite. The mold exhibits a specific geometry corresponding to a channel defined on an inner surface of a bobbin associated with the resistivity logging tool, and the channel is arcuate and extends at an angle offset from a central axis of the bobbin. At least one of a length, a width, and a thickness of the ferrite is then adjusted to manipulate a magnetic permeability of the ferrite in a direction of a magnetic field passing through the ferrite.
Bibliography:Application Number: EP20150906822