Apparatus for sensing the resistivity of geological formations surrounding a borehole

Apparatus for sensing the resistivity of geological formations surrounding a borehole includes a tubular body member (1) which is adapted to form a portion of a length of drill string. An antenna (10) is mounted within the body member (1) and the body member (1) has apertures (2) adjacent to the ant...

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Bibliographic Details
Main Authors MCCLURE, PAUL ANTHONY DONEGAN, BESHOORY, EDWARD JOSEPH, MURRAY, WILLIAM DAVID
Format Patent
LanguageEnglish
French
German
Published 13.03.2002
Edition7
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:Apparatus for sensing the resistivity of geological formations surrounding a borehole includes a tubular body member (1) which is adapted to form a portion of a length of drill string. An antenna (10) is mounted within the body member (1) and the body member (1) has apertures (2) adjacent to the antenna (10) to permit an electro-magnetic signal to pass through the body member (1) after transmission from, or for reception by, the antenna (10).
Bibliography:Application Number: EP19960308869