SNL (Spectral Noise Logging Tool)

Deployment	Borehole
Log Name	SNL
Math Symbol	$\begin{array}{l}N_f\end{array}$
Measured Property	Borehole and reservoir acoustic noise
Sensor Type	Quartz crystal
Units
SI	dB SPL
Oil Metric	dB SPL
Oil Field	dB SPL

Applications


Fig. 1. Sample Spectral Noise Log in Producer (Courtesy TGT)	Fig. 2. Sample Spectral Noise Log in Injector (Courtesy TGT)

Mathematical model of spectral noise is very complex and described in following papers: