Important nucleargeophysical techniques, their peculiarities, their principal construction and mode of operation are considered and illustrated by a table. Particularly the conventional, nonspectrometric, but also the spectromelric techniques in boreholes are treated, taking into account an unification of the measuring equipment. The necessary electrical-electronical and mechanical sub-assemblies are described. Some measuring examples with such devices using scintillation techniques together with the computerized well logging equipment KAD-601 show the multiplicity of the possibilities and their efficiency.