NGT-T Gamma Tool

NGT-T

1.36″ OD Gamma Tool

NGT TThe NGT-T (Natural Gamma Tool-Tensor) is the largest selling MWD gamma tool on the market! With more than 4500 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 industry has matured over the past 25 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 (Sig Out).

NGT-T

1.36″ OD Gamma Tool

NGT T

The NGT-T (Natural Gamma Tool-Tensor) is the largest selling MWD gamma tool on the market! With more than 4500 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 industry has matured over the past 25 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 (Sig Out).

NGT-T Specifications

Detector  Nal(TI) Scintillator Crystal 1.0” Diameter  X 4.0” Length
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 2.2 CPS/API
Accuracy +/- 5% to 300°F
+/- 10% to 350°F
Max API @ 5% PPU error 5000 API
Thin-Bed Resolution (8” hole Diameter) 6.8”
Environmental Operating Temperature 0°F to 350°F
Survival Temperature (reduced accuracy) -40°F to 400°F
Heat/Cool Rate, Max.  5°F per minute
Vibration (3 axis) 50-1000 Hz, Random 20G RMS
Shock (Z axis) 500 G, 0.5 mSec
Shock (X or Y axis) 1000 G, 0.5 mSec
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

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