Rejecting heave-induced pressure oscillations in a semilinear hyperbolic well model

In this paper, we apply recent results on the output feedback control of 2×2 semilinear systems to the problem of rejecting heave-induced pressure oscillations in offshore drilling. The well is modeled as a transmission line with nonlinear friction, with both actuation and measurement restricted to...

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Bibliographic Details
Published in2017 American Control Conference (ACC) pp. 1163 - 1168
Main Authors Strecker, Timm, Aamo, Ole Morten
Format Conference Proceeding
LanguageEnglish
Published AACC 01.05.2017
Subjects
Friction
Inductors
Mathematical model
Observers
Oscillators
Output feedback
Transmission line measurements
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Summary:In this paper, we apply recent results on the output feedback control of 2×2 semilinear systems to the problem of rejecting heave-induced pressure oscillations in offshore drilling. The well is modeled as a transmission line with nonlinear friction, with both actuation and measurement restricted to one boundary. The heave motion is represented by disturbance terms entering both inside the domain and at the uncontrolled boundary. We construct an output feedback controller to track a reference pressure at one location in the well. The controller performance is demonstrated in simulations.
ISSN:2378-5861
DOI:10.23919/ACC.2017.7963110