NGT-T Gamma Tool

NGT-T

Non-Directional Gamma Tool (1.36” OD)

PN 200-000-000_NGT-T-800x503The NGT-T (Natural Gamma Tool-Tensor) is the largest selling MWD gamma tool on the market! With more than 6800 units currently being used in the field worldwide there is no other gamma tool that even comes close.  Initially developed for Tensor in 1993, the NGT-T has been continuously enhanced and improved as the MWD/DD downhole tools industry has matured over the years.

Designed to meet the Tensor MWD system specifications, the NGT-T contains 15-pin high temperature Micro-D Subminiature (MDM) connectors on the top (male pin) and bottom (female socket).  All 15 wires pass through the tool from top to bottom connectors.  The gamma tool utilizes three wire connections, Pin1 (GND), Pin4 (DC Power) and Pin8 (Signal Out).

To protect your gamma investment and ensure the best performance use CBG original SNB Snubbers-Shock & Vibration Isolators.

NGT-T

Non-Directional Gamma Tool (1.36” OD)

PN 200-000-000_NGT-T-800x503

The NGT-T (Natural Gamma Tool-Tensor) is the largest selling MWD gamma tool on the market! With more than 6800 units currently being used in the field worldwide there is no other gamma tool that even comes close.  Initially developed for Tensor in 1993, the NGT-T has been continuously enhanced and improved as the MWD/DD downhole tools industry has matured over the years.

Designed to meet the Tensor MWD system specifications, the NGT-T contains 15-pin high temperature Micro-D Subminiature (MDM) connectors on the top (male pin) and bottom (female socket).  All 15 wires pass through the tool from top to bottom connectors.  The gamma tool utilizes three wire connections, Pin1 (GND), Pin4 (DC Power) and Pin8 (Signal Out).

To protect your gamma investment and ensure the best performance use CBG original SNB Snubbers-Shock & Vibration Isolators.

NGT-T Specifications

P/N 200-000-000

Detector Scintillator Crystal Sodium Iodide, Na(TI)
Photomultiplier R3991A (Hamamatsu)
Mechanical Diameter (OD) 1.36”
Length (make-up) 13.6”
Weight 1.7 lb.
End Connectors Micro-D Subminiature, 15-Pin
Material Aluminum Alloy
Performance Sensitivity 1.14 CPS/API*
Accuracy +/- 5% to 150°C
+/- 10% to 175°C
Environmental Operating Temperature -18°C to 175°C
Survival Temperature (reduced accuracy) -40°C to 200°C
Heat/Cool Rate, Max. 2.8°C (5°F)
Vibration (3 axis) 50-1000Hz, Random 30G (20G RMS)
Shock (3 axis) 1000G, 0.5ms, half-sine
Power Requirements DC Input Voltage 17-48 VDC, 50VDC Max.
Tool Current 8-11 mA
Output Signal Negative Pulse +5V to GND, 5 uSec width

* Counts are collected with gamma tool mounted within standard BeCu pressure barrel, (OD 1.875″, ID 1.500″).  API Calibration performed with AEA Technology, QSA Inc., KUTh Field Verifier #188074, S/N 255 Radionuclides: K-40(11.7%), U-238(90 ppm), Th-232(40 ppm).

MWD Tools | Gamma Sensors

© CBG Corp All Rights Reserved | Terms of Use | Privacy Policy