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1. (WO2017156331) PRODUCTION LOGS FROM DISTRIBUTED ACOUSTIC SENSORS

Pub. No.:    WO/2017/156331    International Application No.:    PCT/US2017/021670
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: G01H 9/00
E21B 43/01
E21B 47/0228
Applicants: CONOCOPHILLIPS COMPANY
Inventors: SWAN, Herbert W.
JIN, Ge
KRUEGER, Kyle R.
ROY, Baishali
Title: PRODUCTION LOGS FROM DISTRIBUTED ACOUSTIC SENSORS
Abstract:
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.