VERFAHREN UND VORRICHTUNG MIT BOHRLOCHKOMPENSATION

VERFAHREN UND VORRICHTUNG MIT BOHRLOCHKOMPENSATION

Compensation of photoelectric absorption measurements for borehole effects during nuclear logging of downhole earth formations is accomplished in a method and apparatus of the invention by detecting low energy gamma radiations entering two detectors (22, 23) in the logging tool apparatus along paths...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SCHULTZ, WARD EDWARD, SMITH, HARRY DAVIS, JR
Format: Patent
Sprache:eng ; ger
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Compensation of photoelectric absorption measurements for borehole effects during nuclear logging of downhole earth formations is accomplished in a method and apparatus of the invention by detecting low energy gamma radiations entering two detectors (22, 23) in the logging tool apparatus along paths having substantially constant formation components but varying borehole components.