Ulf Jakob F. Aarsnes
Ulf Jakob F. Aarsnes
Senior Research Scientist, NORCE
Verified email at norceresearch.no
Cited by
Cited by
An adaptive observer for hyperbolic systems with application to UnderBalanced Drilling
F Di Meglio, D Bresch-Pietri, UJF Aarsnes
Proceeding of the 2014 IFAC World Congress, 11391-11397, 2014
A distributed parameter systems view of control problems in drilling
F Di Meglio, UJF Aarsnes
IFAC-PapersOnLine 48 (6), 272-278, 2015
Delay-robust control design for two heterodirectional linear coupled hyperbolic PDEs
J Auriol, UJF Aarsnes, P Martin, F Di Meglio
IEEE Transactions on Automatic Control 63 (10), 3551-3557, 2018
Linear stability analysis of self-excited vibrations in drilling using an infinite dimensional model
UJF Aarsnes, OM Aamo
Journal of Sound and Vibration 360, 239-259, 2016
Control-oriented drift-flux modeling of single and two-phase flow for drilling
UJF Aarsnes, F Di Meglio, S Evje, OM Aamo
Dynamic Systems and Control Conference 46209, V003T37A003, 2014
Dynamics of a distributed drill string system: Characteristic parameters and stability maps
UJF Aarsnes, N van de Wouw
Journal of Sound and Vibration 417, 376-412, 2018
A simplified two-phase flow model using a quasi-equilibrium momentum balance
UJF Aarsnes, A Ambrus, F Di Meglio, AK Vajargah, OM Aamo, E van Oort
International Journal of Multiphase Flow 83, 77-85, 2016
Review of two-phase flow models for control and estimation
UJF Aarsnes, T Flċtten, OM Aamo
Annual Reviews in Control 42, 50-62, 2016
Modeling for MPD Operations With Experimental Validation
I Landet, H Mahdianfar, A Pavlov, OM Aamo, UJF Aarsnes
IADC/SPE Drilling Conference and Exhibition, 2012
Torsional vibrations with bit off bottom: Modeling, characterization and field data validation
UJF Aarsnes, RJ Shor
Journal of Petroleum Science and Engineering 163, 712-721, 2018
Real-time estimation of reservoir influx rate and pore pressure using a simplified transient two-phase flow model
A Ambrus, UJF Aarsnes, AK Vajargah, B Akbari, E van Oort, OM Aamo
Journal of Natural Gas Science and Engineering 32, 439-452, 2016
Modeling and avoidance of heave-induced resonances in offshore drilling
UJ Aarsnes, MS Gleditsch, OM Aamo, A Pavlov
SPE Drilling & Completion 29 (04), 454-464, 2014
A simplified gas-liquid flow model for kick mitigation and control during drilling operations
UJF Aarsnes, A Ambrus, A Karimi Vajargah, OM Aamo, E Van Oort
Dynamic Systems and Control Conference 57250, V002T20A002, 2015
Axial and torsional self-excited vibrations of a distributed drill-string
UJF Aarsnes, N van de Wouw
Journal of Sound and Vibration 444, 127-151, 2019
Avoiding stick slip vibrations in drilling through startup trajectory design
UJF Aarsnes, F Di Meglio, RJ Shor
Journal of Process Control 70, 24-35, 2018
A simplified transient multi-phase model for automated well control applications
A Ambrus, UJF Aarsnes, AK Vajargah, B Akbari, E Oort
International Petroleum Technology Conference, 2015
Fit-for-purpose modeling for automation of underbalanced drilling operations
UJ Aarsnes, F Di Melgio, OM Aamo, GO Kaasa
SPE/IADC Managed Pressure Drilling & Underbalanced Operations Conference …, 2014
Robust controller design for automated kick handling in managed pressure drilling
UJF Aarsnes, B Açıkmeşe, A Ambrus, OM Aamo
Journal of Process Control 47, 46-57, 2016
Modeling of Two-Phase Flow for Estimation and Control of Drilling Operations
UJF Aarsnes
Norwegian University of Science and Technology, 2016
Estimation of states and parameters of a drift-flux model with unscented Kalman filter
A Nikoofard, UJF Aarsnes, TA Johansen, GO Kaasa
IFAC-PapersOnLine 48 (6), 165-170, 2015
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