is designed to determine rock density and rock effective atomic number in oil-and-gas wells.
Problems to be solved:
• lithology definition;
• porosity estimation in two-component rock matrix.
Features and Advantages
• simultaneous density estimation ρ and rock effective atomic number determination Zeff;
• ρ and Zeff determination improved accuracy at the expense of scattered GR full spectrum analysis when Zeff determining.
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Measurements range: rock density, g/cm3 effective atomic number, unit |
1.5-3 10-20 |
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Measurement error: density, % effective atomic number, unit |
±2 ±0.25 |
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Spectrometer quantization levels number |
128 |
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Maximum operating temperature, °C |
120 |
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Maximum operating pressure, MPa |
80 |
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Downhole tool dimensions, mm: diameter length |
48; 90 1500; 2500 |
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Weight, kg |
15; 70 |
Lithology log results usage for elaboration cross-section lithology and rock density estimation.