Patent 10095828 was granted and assigned to ConocoPhillips on October, 2018 by the United States Patent and Trademark Office.
A system and method for monitoring oil flow rates along a producing oil or gas well using a Distributed Acoustic Sensing fiber is described. This system uses the low-frequency component of the acoustic signal as a measurement of temperature variations within the well. The relative flow contributions can then be inferred from these temperature fluctuations.