MEASUREMENT OF EARTH POROSITY AT A WELL

MEASUREMENT OF EARTH POROSITY AT A WELL

Earth porosity at a well is measured by irradiating the earth formation with fast neutrons from a source (18), and using a dual-spaced fast/epithermal neutron measurement in which the fast neutron popululation is measured at a different source-detector spacing (18 to 20) from that used for measuring...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SMITH, HARRY DAVIS, JR
Format: Patent
Sprache:eng
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Earth porosity at a well is measured by irradiating the earth formation with fast neutrons from a source (18), and using a dual-spaced fast/epithermal neutron measurement in which the fast neutron popululation is measured at a different source-detector spacing (18 to 20) from that used for measuring the epithermal neutron population (18 to 40).