gamma-ray sonde The well-logging instrument, comprising a scintillometer, used to measure the natural radioactivity of the rocks through which the drill hole passes. Potassium ( 40 K) is the most abundant radioactive element and occurs in clays (especially the mineral illite and micas ).
Gamma ray tools record naturally occurring gamma rays in the formations adjacent to the wellbore. This nuclear measurement indicates the radioactive content of the formations. Effective in any environment, gamma ray tools are the standard device used for the correlation of logs in cased and open holes.
Natural Gamma Sonde The Geovista digital Natural Gamma Ray Sonde can be used on its own or in combination with other Geovista sondes for correlation purposes. The spectral gamma version can operate in both spectral and in 5 window mode. The
The gamma ray tool was the first nuclear log to come into service, around 1930 (see Fig. 3). Gamma ray logs are used primarily to distinguish clean, potentially productive intervals from probable unproductive shale intervals. The measurement is used to locate shale beds and quantify shale volume.
The *well-logging instrument, comprising a scintillometer, used to measure the natural radioactivity of the rocks through which the drill
Natural Gamma Sonde Product Information The Geovista digital Natural Gamma Ray Sonde can be used on its own or in combination with other Geovista sondes for correlation purposes.
Hostile Environment Natural Gamma Ray Sonde The increased sensitivity of the Hostile Environment Natural Gamma Ray Sonde (HNGS) set of detectors improves the tool’s statistical response to the formation gamma rays to produce a better spectral analysis than that of previous tools.
Gamma ray activity increases from left to right Modern gamma ray tools are in the form of double ended subs that can be sandwiched into almost any logging tool string. Gamma ray tools consist of a gamma ray detector and the associated electronics for passing …
12.10 Uses of the Spectral Gamma Ray Log The spectral gamma ray log is an extremely useful log, especially for subtle lithological and compositional analysis, which benefits from its high vertical resolution. In the analysis of spectral gamma ray data, use is commonly made of the ratios of the abundances of the main radioactive sources.
Gamma ray logging is a method of measuring naturally occurring gamma radiation to characterize the rock or sediment in a borehole or drill hole. It is a wireline logging method used in mining, mineral exploration, water-well drilling, for formation evaluation in oil …