The equipment was development by AO NPP VNIIGIS in cooperation with AO NPF GITAS
SCOPE OF APPLICATION
- Oil and gas wells, with/without tubing
- Operating or killed wells
- Any lithology
- Heavy or light cement
- Well filling - gas/water/oil
FEATURES
Multiparametric studies realized in one trip:
- Compensated Neutron Log to determine water saturated porosity, neutron parameters of the environment
- Three-probe spectral neutron gamma-ray logging for radial (3 logging depths) determination of elemental composition, nuclear parameters of the medium
- Spectral gamma-ray logging to determine K, U, Th concentrations
ADVANTAGES
- Express quality evaluation of cement filling behind two pipes (including accumulation of gas, water)
- Formation evaluation: saturation, porosity; by indirect parameters: density, permeability;
- Evaluation of formation lithology
Specifications
| Number of Probes: NNKt SNGK-Sh SGK | 2 3 (2 spectrums of 256 channels each) 1(256 channels) |
| Energy range of gamma-quantum recording of SGR channel, MeV | 0,1–3,5 |
| Energy range of SNGK channel gamma ray recording of ShortP, MiddleP, LongP full spectrum, MeV | 0,1–8,0 |
| Energy range of SNGK-Sh low-energy spectrum recording of ShortP, MiddleP, LongP, MeV | 0,1–0,8 |
| Energy resolution of the 137Cs peak spectra, % | Max. 15 |
| Maximum operating pressure, MPa | 100 |
| Maximum operating temperature, °С | 1500 |
| Tool diameter, mm | 50 |
| SGR unit length with top centralizer, mm | 2000 |
| MNK unit length (without centralizers), mm | Max. 2500 |
| LM-M-T unit length (with centralizers), mm | Max. 3100 |
| SGR unit weight with centralizers, kg | Max. 15 |
| MNK unit weight with centralizers, kg | Max. 30 |
| LM-M-T unit weight with centralizers, kg | Max. 20 |
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