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dc.contributor.authorHolta, Haavard H. F.
dc.contributor.authorAnfinsen, Henrik
dc.contributor.authorAamo, Ole Morten
dc.description.abstractWe study the kick and loss detection and attenuation problem in managed pressure drilling by modeling the well as a distributed parameter system. Two cases are considered, distinguished by whether down-hole pressure measurements are available or not. The main contribution of the paper is a theoretical result on adaptive stabilization and set-point regulation by boundary control for a general 2×2 linear hyperbolic system in the case of measurements taken at both boundaries, with stability proven in the L2-sense. The design is applied to the drilling system and shown to solve the kick and loss problem with sensing at both boundaries. An earlier result on adaptive set-point regulation for 2×2 hyperbolic systems is also applied to the drilling system and shown to solve a kick and loss problem with sensing restricted to the actuated boundary only. The two designs are compared in a simulation of a loss incident, showing a significant reduction in convergence time and total accumulated loss for the design with sensing allowed at both boundaries.en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleAdaptive set-point regulation of linear 2x2 hyperbolic systems with application to the kick and loss problem in drillingen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.relation.projectNorges forskningsråd: 255348en_US
dc.description.localcode© 2020. This is the authors’ accepted and refereed manuscript to the article. Locked until 24.06.2022 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal