Data-Driven Methodology for the Prediction of Fluid Flow in Ultrasonic Production Logging Data Processing

Table 1

Matrix table of approximate values of variables related to hydrostatic oil injection.

	Correlation between vectors of power spectrum
	Oil flow	Peak amplitude	Center frequency	Amplitude of oil	Frequency of oil	Variance of oil	Area of oil peak	Logarithm of amplitude ratio
Oil flow	1.000	.960	-.610	.958	-.582	.048	.857	.787
Peak amplitude	.960	1.000	-.385	1.000	-.354	.294	.962	.920
Center frequency	-.610	-.385	1.000	-.377	.984	.693	-.140	-.029
Amplitude of oil	.958	1.000	-.377	1.000	-.348	.299	.966	.922
Frequency of oil	-.582	-.354	.984	-.348	1.000	.763	-.116	.024
Variance of oil	.048	.294	.693	.299	.763	1.000	.497	.641
Area of oil peak	.857	.962	-.140	.966	-.116	.497	1.000	.973
Logarithm of amplitude ratio	.787	.920	-.029	.922	.024	.641	.973	1.000