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.
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.
|
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