Products > Memory System
Gamma Ray Tool
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Overview
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
Specifications
Application
· Lithological identification
· Depth correction
· Identification of radioactive scale
· Tracer monitoring
· Gravel pack monitoring (with an additional gamma source)
Specifications
|
Model |
GRT09 |
GRT10 |
|
OD |
35mm (1 3/8”) |
43mm (1 11/16”) |
|
Max Working Temperature |
175℃ (350℉) |
175℃ (350℉) |
|
Max Working Pressure |
15000psi (103MPa) |
15000psi (103MPa) |
|
Shipping Length |
787mm (30.98") |
774mm (30.47″) |
|
Rig-up Length |
692mm (27.24") |
679mm (26.73,f) |
|
Weight |
3.6kg (7.9lbs) |
4.7kg (10.4lbs) |
|
Operating Voltage |
14VDC-18VDC (Nor. 17VDC) |
14VDC-18VDC (Nor. 17VDC) |
|
Operating Current |
35mA±3mA |
35mA±3mA |
|
Bus |
KWTBus |
KWTBus |
|
Measuring Range |
0-10000 CPS |
0-10000 CPS |
|
Sensor |
Sodium iodide (NaI) |
Sodium iodide (NaI) |
|
Lower Limits |
20keV |
20keV |
|
Statistic Variation |
≤10% |
≤10% |
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