| Deployment | Borehole | ||||
|---|---|---|---|---|---|
| Log Name | SNL | ||||
| Math Symbol |
| ||||
| 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 in Producer (Courtesy TGT) | Fig. 2. Sample Spectral Noise Log in Injector (Courtesy TGT) |
Tool Schematic
Mathematical Model
Mathematical model of spectral noise is very complex and described in following papers: