PIONEER ENERGY
Pioneer-GR Gamma ray module
GR gamma ray module can be used with TENSOR，the maximum working temperature is 175 ° C and pressure is 20000 PSI. GR gamma ray module consists of electronic components and detector components. The detector component is equipped with a NaI crystal detector and a photomultiplier tube. GR gamma ray module is used to measure the gamma radiation emitted by uranium, thorium, and potassium in the mineral composition of underground rock layers. GR gamma ray module is suitable for measuring while drilling operations in directional wells, horizontal wells. GR gamma ray module can help to design well trajectory and assess real-time geosteering for geological engineer, and can improve ROP. GR gamma ray module is stable、 reliable, easy for maintenance.

 Product Features


  • Interface compatibility TENSOR System 
  • High shock&vibration resistance 

  • High sensitive NaI crystal detector and high reliable photomultiplier tube


Suitable for harsh working conditions



20000Psi

maximum working pressure

150℃/175℃

maximum working temperature

High shock&vibration resistance
  • Specifications

Sensitivity 1.3 CPS/API
Tolerance ±5% to 150°C / ±10% to 175°C
Measuring range 1000 API
Rated temperature -20 ~175°C
Vibration 5-200Hz 20g RMS
Shock (Z axis) 500G, @0.5 mSec
Shock (X or Y axis) 1000G,@0.5 mSec
Operating Voltage Range 18-36VDC
Rated Current <20mA
Output(Negative-pulse) +5V to GND, 2-5µs
Mechanical Specification Φ47.6mm×1238mm