| Deployment | Borehole |
|---|---|
| Log Name | SNL |
| Math Symbol | N_f |
| Measured Property | Borehole and reservoir acoustic noise |
| Sensor Type | Quartz crystal |
| Units | |
| SI | dB SPL |
| Oil Metric | dB SPL |
| Oil Field | dB SPL |
Applications
- Locating borehole and behind-casing flow
- Assessing formation pressure in flowing zones
Sample Logs
| Fig. 1. Sample Spectral Noise Log (Courtesy TGT) |
Tool Schematic
Mathematical Model
Mathematical model of spectral noise is very complex and described in following papers: