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The gamma ray tool (GRT) measures the natural gamma ray generated from the formation that surrounds the wellbore. The sensor comprises a 4" sodium iodide scintillator, a photomultiplier and a 1.6kV high voltage power supply. The models of GRT are compactly designed and offers good sensitivity and high resolution for use in cased-hole production logging operations. The Tool, combined with other tools, may be used for flow tracer work and, with the addition of a gamma source, for gravel pack investigations.
Application:
● Lithological identification
● Depth correction
● Identification of radioactive scale
● Tracer monitoring
● Gravel pack monitoring (with an addition gamma source)
Benefits:
● High speed data telemetry system
● Combinable with high speed wireline telemetry cartridge (WTC)
● Good vibration resistance performance
Specifications:
http://www.wellsunlogging.com/