Development of OOO NPP INGEO with support of the Innovation Promotion Fund
SCOPE OF APPLICATION
- open / cased Oil, Water, Gas wells with any type of borehole fluid;
- lithology / porosity / saturation.
FEATURES AND ADVANTAGES
Simultaneous logging during one round trip:
- inelastic and Capture spectra from near and far detectors;
- pulse neutron lifetime log (SIGMA);
- natural Spectral Gamma Ray log (SGR).
Accurate calculation of fractional contribution of each chemical element in the rock, obtained through the use of:
- effective mathematical method for pulse separation when recording, reducing the number of miscalculations;
- efficient LaBr3-based detectors with high spectral resolution and low temperature drift over a wide range of frequencies;
- a variable-frequency neutron generator, in order to avoid overlapping of recorded spectra.
Interpretation methods, taking into account the near zone (casing string, cement ring, paraffins, wellbore crossflows) by the ratio of short and long probes of INGK-S
Specifications
| Logging speed, m/h | 50–70 |
| Output | Water-saturated porosity, weight concentrations of elements by spectra of inelastic gamma-ray spectrometry, neutron capture gamma-ray spectrometry, Spectral GR, oil/gas saturation of beds |
| Energy resolution of spectrometers at the peak 137Cs, % | 5 |
| Relative accuracy of So, % | 8 |
| Range of water-saturated porosity, % | 1–40 |
| Number of recording spectra / number of channels in a spectrum | 7/1024 |
| Temperature rating, °С | 120 |
| Pressure rating, Mpa | 80 |
| Tool length, mm | 3200 |
| Tool size, mm | 75 |
| Tool weight, kg | 40 |
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