Natural Gamma Density Three-Lateral Caliper Combination Logging Tool
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Basic Information
| Model | Diameter (mm) | Length (mm) | Weight (kg) | Pressure (MPa) | Working Temp. (°C) |
| SAMD-1 | φ52 | 2300 | 22.9 | 25 | 0–85 |
| SA2113 | φ42 | 2310 | 15.6 | 25 | 0–85 |
| SA3103 | φ56 | 2410 | 25.0 | 40 | 0–100 |
Description
This is one of the core detector probes in current logging. It can measure eight curves in a single run: lateral voltage, caliper, lateral current, natural gamma, long spacing, short spacing, lateral resistivity and lateral conductivity. After decades of refinement, it features excellent circuit and mechanical design; the natural gamma, long/short spacing and caliper sections all adopt imported sensors, delivering stable and reliable data. The outer tube is made of stainless steel, pressure- and corrosion-resistant. It is widely used in coalfield, coalbed methane, shale gas, hydrology, polymetallic, non-metallic and radioactive uranium ore.
Specification
| Parameter | Caliper (mm) | Lateral Resistivity (Ω·m) | Natural Gamma (cps) | Density (g/cm³) |
| Range | 55–450 | 1–10,000 | 0–10,000 | 1–3 |
| Accuracy | ≤±3 | ≤±5 | ≤±5 | ≤0.03 |
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