Decision by Expert Technical Council at State Commission on Mineral Resources
Recommend the inclusion of the combined steady-state nuclear LWD tool (made by OOO NPP Energiya, LLC) in the register of technologies approved by Expert Technical Council at State Commission on Mineral Resources.


Geophysical equipment

Geophysical instrumentation manufactured by RPE Energiya, LLC (ООО «НПП Энергия»)

Key element


Neutron tubes developed by RPE Energiya, LLC (ООО «НПП Энергия») and FSUE Integrated Plant “Electrohimpribor” (ФГУП «Комбинат «Электрохимприбор»)


Pulsed neutron generators MFNG-341

Main technical specifications of pulsed neutron generator MFNG-341 (МФНГ-341), applied in borehole tool PINK-43A (ПИНК-43А).


Parameter Value Note
Diameter, length, mm 34, 1600  
Supply voltage, V DC positive, 180÷220 Selected depending on the applied borehole instrumentation – self-contained or borehole
Electric energy efficiency rate, W/neutron 16×108 Defined as electric energy, consumed by the whole neutron generator per one neutron (at output of 108 n/sec consumed power is 16 W)
Neutron maximum frequency of oscillation, Hz 20000  
Neutron minimum frequency of oscillation, Hz 1000 Wavetrain operation mode is possible
Maximum ambient temperature, °C 150  
Timing capability Internal / external  
Neutron pulse leading / drop edge, μs 2/1  
Neutron pulse position stability, μs ±0.4/0.7