is designed to register energy spectrum gamma-ray radiation, forming:
– from natural radioactive elements;
– during neutron deceleration and absorption process from sealed radionuclide source and high-energy gamma-radiation dissipation.

Description

Registered information can be used for:

  • determination natural radioactive elements (U, Th, K) concentration;
  • determination clay mineral assembledge;
  • determination fluid content;
  • lithological breaking-up of well cross-section;
  • to estimate elements concentration (Cl, H, Si, Ca, Fe, Mn, Ni, Co, etc.), anomalously absorbing thermal neutrons;
  • dissepating and absorptive neutron and gamma-ray rock parameters and its ratios.

Features and Advantages

  • register gamma-ray logging in energy wide range, increasing SNGK methodic possibility;
  • SNGK-Sh/GK-S/NAK-S methods’ performance during the single trip;
  • the tool is a triple-sonde module with three multichannel energy spectrometers for full gamma-spectra radiation.

Delivery in complete set: downhole tools, interface unit, technological software, maintenance tool, spare parts and accessories, certificate, operating manual.

Specifications

Gamma-quantum measurements range, MeV:

    GK spectrum

    SNGK-Sh spectrum

 

0.1÷3.0

0.1÷9.0

Energy resolution, %

up to 12

Energy scale instability, %

up to 1

Spectrometric track dead-time, microsec

4

Maximum cable length, mm

5000

Maximum pressure, MPa

100*

Operating temperature range, °C

from – 5 till+120

Tool dimensions, mm:

    diameter

    length

 

90 

2950

Weight, kg

55; 85*

*depends on housing material

Certificate