Yeung, HoiArubi, Isaac Marcus Tesi2014-03-212014-03-212011-03http://dspace.lib.cranfield.ac.uk/handle/1826/8347The oil and gas industry need for high performing and low cost multiphase meters is ever more justified given the rapid depletion of conventional oil reserves. This has led oil companies to develop smaller/marginal fields and reservoirs in remote locations and deep offshore, thereby placing great demands for compact and more cost effective soluti8ons of on-line continuous multiphase flow measurement. The pattern recognition approach for clamp-on multiphase measurement employed in this research study provides one means for meeting this need. Cont/d.en© Cranfield University 2011. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.Gamma densitometrymultiphase flowmultiphase measurementmeasurement uncertaintypattern recognitionflow regimesignal analysisdrift fluxphase inversionThesis or dissertation