MPNN – Memory Pulsed Neutron-Neutron Logging

MPNN, a battery-powered Memory Pulsed Neutro-Neutron logging tool, is designed for dual-spacing pulsed neutron-neutron (PNN) surveying of uncased and cased wells (including those with tubing) 60 mm and over in size. MPNN includes MINK-1 and AINK-43-50 tools.


  • Evaluation of near and far zones of the reservoir.
  • Thermal neutron capture cross-section (SIGMA).
  • Hydrogen content of rocks.
  • Insensitive to a disturbed GR background.
  • Porosity and saturation evaluation.
  • Modular structure.
  • On-site replacement of the neutron generator.
  • Optional memory unit.