Design and analysis of robust controllers for directional drilling tools

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dc.contributor.advisorWhidborne, James F.
dc.contributor.advisorCao, Yi
dc.contributor.authorGhole, Amaan
dc.date.accessioned2016-11-09T14:24:58Z
dc.date.available2016-11-09T14:24:58Z
dc.date.issued2016-08
dc.description.abstractDirectional drilling is a very important tool for the development of oil and gas deposits. Attitude control which enables directional drilling for the efficient placement of the directional drilling tools in petroleum producing zones is reviewed along with the various engineering requirements or constraints. This thesis explores a multivariable attitude governing plant model as formulated in Panchal et al. (2010) which is used for developing robust control techniques. An inherent input and measurement delay which accounts for the plant's dead-time is included in the design of the controllers. A Smith Predictor controller is developed for reducing the effect of this dead-time. The developed controllers are compared for performance and robustness using structured singular value analysis and also for their performance indicated by the transient response of the closed loop models. Results for the transient non-linear simulation of the proposed controllers are also presented. The results obtained indicate that the objectives are satisfactorily achieved.en_UK
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10964
dc.language.isoenen_UK
dc.publisherCranfield Universityen_UK
dc.rightsยฉ Cranfield University, 2016. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.en_UK
dc.subjectAttitudeen_UK
dc.subjectMultivariable Contro,en_UK
dc.subjectRobust Controlen_UK
dc.subjectDeadtimeen_UK
dc.subjectSmith Predictoren_UK
dc.subjectยต analysisen_UK
dc.titleDesign and analysis of robust controllers for directional drilling toolsen_UK
dc.typeThesis or dissertationen_UK
dc.type.qualificationlevelDoctoralen_UK
dc.type.qualificationnameMSc by Researchen_UK

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