Pipmed Medical
Borehole Density Logging Equipment Electrical Logging System Natural Gamma Logger Temperature Logging Caliper Logging System Geophysical Logging Tools
The Sidewall Density Gamma Probe is a versatile wireline tool that can be used in a wide variety of logging applications. Measurements include Natural Gamma, Spontaneous Potential (SP), Laterolog-3 Resistivity, SSD (short-spaced density), LSD (long-spaced density), Compensated density (dual density), and Caliper. The tool section is designed for operation in 50- 300 mm boreholes.
This dual detector, high resolution density tool is fully characterized, producing accurate near and far density measurements transformed into compensated density by use of stand-off compensation algorithms.
| 1. Source | Cesium-137 |
| 2. Laterolog-3 Electrode | Stainless Steel Electrode |
| 3. Focusing Electrode Length | 2L=2×0.6m; Main Electrode Length: L0=0.06m |
| 4. Spontaneous Potential (SP) Electrode | Pb Electrode |
| 5. Natural Gamma Sensor | NaI Crystal; Scattering Sensor: NaI Crystal |
| 6. Caliper Range | 60~300mm, 5% |
| 7. SP Range | ±1200mV, 5% |
| 8. Laterolog-3 Resistivity | 1.2~1.2×10⁵ Ωm, 5% |
| 9. Natural Gamma / LSD / SSD | 0~32768cps |
| 10. Compensated Density | 1~3 g/cm³, 3% |
| 11. Environmental Tolerance | ≤75ºC, 20MPa |
| 12. Signal | Bipolar Codes |
Geophysical logging uses physical principles and specialized instruments to measure parameters along a drilling profile. This includes resistivity, acoustic velocity, rock density, and ray emission capacity. These measurements allow engineers to evaluate underground geological information and resource occurrence for oil, natural gas, coal, and groundwater.