Title :
Metrological characteristics of a natural spectral gamma-ray logging system
Author :
Kozhevnikov, D.A. ; Kalmykov, G.A.
Author_Institution :
Gubkin State Acad. of Oil & Gas, Moscow, Russia
fDate :
4/1/1997 12:00:00 AM
Abstract :
An approach to building an interpretation algorithm and a model of a natural spectral gamma-ray logging tool, based on the introduction of specific-metrological characteristics, is considered. The characteristics include the concentration sensitivities, radial sensitivities, and the geometrical factor of semispace for potassium, equilibrium uranium, and thorium. Metrological characteristics measured with a serial logging spectrometer and their application to solving the direct problems of gamma-ray log are considered
Keywords :
gamma-ray apparatus; geophysical prospecting; geophysical techniques; concentration sensitivities; equilibrium uranium; geometrical factor; interpretation algorithm; metrological characteristics; natural spectral gamma-ray logging system; radial sensitivities; semispace; Calibration; Drilling; Geology; Geophysical measurements; Geophysics; Helium; Petroleum; Solid modeling; Spectroscopy; Well logging;
Journal_Title :
Nuclear Science, IEEE Transactions on
