CBG Corp, state-of-the-art logging tools and sensors

NGT-075 Gamma Tool Specifications

Overview | Specifications

The CBG NGT-075 third-generation Gamma tool offers advanced protection and noise-suppression circuits in a high-performance, reduced-size sensor.

CBG Corp. NGT-075 Gamma Ray Tool: Click for larger image.
NGT-075 Specifications
w/out housing assembly with 24″ housing assembly
Application Geosteering/ MWD Geosteering/ MWD
Mechanical
Diameter (OD) 0.75″ (19.05 mm.) Data Pending
Length (make up) 14.5″ (368 mm.)
Weight 8.5 oz. (240 grams)
Operating Temperature -77 to +350 °F.
End Connectors 7-pin circular, Nanonics 303-0024
Material Aluminum Alloy
Pressure NR
Performance
Sensitivity 0.95 Counts per API
Accuracy +/- 5% to 300°F.
+/- 5% to 150°C
Thin-Bed Resolution (In 8″ hole diameter, at 50% points) 6.8″ (172 mm.) at 50% points
Environmental
Survival Temperature 400°F.
Max Heat/Cool rate 5°F. (3°C.) per minute
Vibration (3 axis)
50-300 Hz
Random spectrum
30 G. with no excess counts
Shock (Z-axis) 500 G., 0.5 mS. duration
Shock (X or Y-axis) 1000 G., 0.5mS.
Power Requirements
Input Voltage +17 to +45 Volts DC
Input Current 12-9 mA. (10 mA at 28V)
Maximum Voltage 50 Volts
Output Signal
Negative Pulse +5 volts to GND
5 uS width