The purpose of the device is to determine the petrophysical parameters of oil and gas collectors in the process of drilling wells.

Versatility:

• measurement through solid drill pipes of different diameters with different wall thicknesses;

• determination of a complex of parameters using a complex of RK

Used sources: 

• γ-quanta of 60Co (activity up to ~ 0.14 Ki, power ~ 1·1010 γ-sq./sec)

• neutrons - 238 PuBe or AmBe (activity  up to ~ 6.5 Ki, power ~ 1.0·107 neutrons/sec)

The device consists of two modules: 2GGK+GC+GG-k and 2NNK+2NGK

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  Module 2ГГК+ГК+ГГ-к:​

• two probes of dense gamma-gamma logging (2GHK)

• integral gamma logging (GC) probe, a.k.a. background meter for GHG and NGK detectors

• probe gamma-gamma cavernometer (GG-k)

Module 2NNK+2NGK

• two probes of thermal neutron neutron-neutron logging (2NNK)

• two probes of neutron-gamma logging (2NGK)