Title :
Elemental logging with a germanium spectrometer in the Continental Deep Drilling project
Author :
Schweitzer, J.S. ; Peterson, C.A. ; Draxier, J.K.
Author_Institution :
Schlumberger-Doll Res., Ridgefield, CT, USA
Abstract :
A gamma-ray spectrometer based on a germanium detector has been used to obtain elemental concentration logs in three zones of the German Continental deep drilling project pilot hole, with a primary goal of obtaining logs of elements that could not be obtained by commercial logging measurements. Delayed activation measurements provided elemental logs of Na, Mg, Mn, and V. The accuracy of the elemental concentrations were confirmed through comparisons with laboratory XRF elemental analyses of cuttings and core samples from the well. These logging measurements provided reliable elemental concentrations that can contribute to the detailed analysis of rock mineral composition
Keywords :
Earth crust; gamma-ray spectroscopy; geophysical prospecting; geophysical techniques; germanium; Ge spectrometer; German Continental deep drilling project pilot hole; Mg; Mn; Na; V; delayed activation measurements; elemental concentration logs; gamma-ray spectrometer; rock mineral composition; Delay; Drilling; Gamma ray detection; Gamma ray detectors; Geologic measurements; Geophysical measurements; Germanium; Neutrons; Solid scintillation detectors; Spectroscopy;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301350
