Device 2NNK-GGKLP-LWD-121

Designed for GIS methods:

• azimuthally oriented lithological-density gamma-gamma-ray logging to determine the density and effective atomic number of rocks.
• compensated neutron-neutron logging by thermal neutrons for measuring water-saturated porosity of rocks by the method of compensated neutron-neutron logging by thermal neutrons - 2NNct or by epithermal neutrons - 2NNnt.

Tasks to be solved:

• control of the design of the wellbore during drilling;
• image density registration in 16 segments
• reservoir routing through azimuthal measurements;
• collector allocation;
• determining the nature of saturation of the collectors;

The device can operate both from its own and from external power sources. To ensure operation in combination with other devices, the device passes through a transit of 7 wires.

The measuring installation of compensated neutron-neutron logging contains a chamber for placing an ampule source of fast neutrons IBN-8-5 with a neutron output of (1.00 ± 0.20) × 10 ⁷ n / s, the measuring installation of lithological-density logging contains a chamber for placing a gamma source radiation Cs-137 type IGI-C-4 activity from 6.65 × 10 ⁹ to 6.65 × 10 ¹⁰ Bq.

Neutron source recoverable.