Below is a list of relevant publications from research that forms the basis for our technology.
V. de Oliveira, J. Jäschke, and S. Skogestad, “An autonomous approach for driving systems towards their limit: an intelligent adaptive anti-slug control system for production maximization,” presented at the IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, 2015, pp. 104–112.
C. Berg, A. Malagalaga, C. E. Agu, G.-O. Kaasa, K. Vaagsaether, and B. Lie, “Model-based drilling fluid flow rate estimation using Venturi flume,” presented at the IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, 2015, pp. 1–6.
U. J. F. Aarsnes, F. Di Meglio, O. M. Aamo, and G.-O. Kaasa, “Fit-for-Purpose Modeling for Automation of Underbalanced Drilling Operations,” presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, Madrid, 2014.
U. J. F. Aarsnes, M. S. Gleditsch, O. M. Aamo, and A. Pavlov, “Modeling and Avoidance of Heave-Induced Resonances in Offshore Drilling,” SPE Drilling & Completion, vol. 29, no. 4, pp. 454–464, 2014.
A. Willersrud, L. S. Imsland, G.-O. Kaasa, and A. Pavlov, “A Framework for Fault Diagnosis in Managed Pressure Drilling Applied to Flow-Loop Data,” presented at the IFAC International ymposium on dynamics and control of process systems, 2013, pp. 625–630.
I. S. Landet, O. M. Aamo, and A. Pavlov, “Modeling and Control of Heave-Induced Pressure Fluctuations in Managed Pressure Drilling,” Control Systems Technology, IEEE Transactions on, vol. 21, no. 4, pp. 1340–1351, Jul. 2013.
E. Hauge, “Automatic Kick Detection and Handling in Managed Pressure Drilling Systems,” Ph.D. dissertation, Norwegian University of Science and Technology, 2013.
J.-M. Godhavn, A. Pavlov, and G.-O. Kaasa, “New Automatic Control Solutions for the Drilling Industry,” Transactions on control of mechanical systems, vol. 2, no. 2, pp. 61–69, Feb. 2013.
E. Lavretsky and K. Wise, Robust and Adaptive Control. Springer Science & Business Media, 2012.
U. J. F. Aarsnes, O. M. Aamo, E. Hauge, and A. Pavlov, “Limits of Controller Performance in the Heave Disturbance Attenuation Problem*,” presented at the The European Control Conference, 2012, pp. 1–7.
G.-O. Kaasa, Ø. N. Stamnes, L. S. Imsland, and O. M. Aamo, “Simplified Hydraulics Model Used for Intelligent Estimation of Downhole Pressure for a Managed-Pressure-Drilling Control System,” SPE Drilling & Completion, vol. 27, no. 1, pp. 127–138, Mar. 2012.
F. Di Meglio, N. Petit, V. Alstad, and G.-O. Kaasa, “Stabilization of slugging in oil production facilities with or without upstream pressure sensors,” Journal of Process Control, vol. 22, no. 4, pp. 809–822, 2012.
F. Di Meglio, “Dynamics and control of slugging in oil production,” Ph.D. dissertation, Mines ParisTech, 2011.
A. Pavlov and G.-O. Kaasa, “Statoil: Automatic MPD a coming reality,” Drilling contractor, no. July/August, pp. 1–1, Jul. 2011.
Ø. N. Stamnes, “Nonlinear Estimation with Applications to Drilling,” PhD dissertation, Norwegian University of Science and Technology, 2011.
Ø. N. Stamnes, O. M. Aamo, and G.-O. Kaasa, “Adaptive Redesign of Nonlinear Observers,” IEEE Transactions on Automatic Control, vol. 56, no. 5, pp. 1152–1157, Jan. 2011.
J.-M. Godhavn, A. Pavlov, G.-O. Kaasa, and N. L. Rolland, “Drilling seeking automatic control solutions,” presented at the IFAC World Congress of Automatic Control, Milano, Italy, 2011, pp. 10842–10850.
Ø. N. Stamnes, G.-O. Kaasa, and O. M. Aamo, “Adaptive estimation of downhole pressure for Managed Pressure Drilling operations,” IEEE International Symposium on Intelligent Control (ISIC), pp. 989–995, Jan. 2011.
Z. Li, N. Hovakimyan, and G.-O. Kaasa, “Fast estimation and ℒ 1 adaptive control for bottomhole pressure in managed pressure drilling,” Intelligent Control (ISIC), pp. 996–1001, 2011.
A. Pavlov, G.-O. Kaasa, and L. S. Imsland, “Experimental Disturbance Rejection on a Full-Scale Drilling Rig,” IFAC Symposium on Nonlinear Control Systems (NOLCOS), pp. 1338–1343, Jan. 2010.
F. Di Meglio, G.-O. Kaasa, and N. Petit, “A first principle model for multiphase slugging flow in vertical risers,” presented at the 2009 Joint 48th IEEE Conference on Decision and Control (CDC) and 28th Chinese Control Conference (CCC), 2009, vol. 6, pp. 8244–8251.
J. Zhou, O. N. Stamnes, O. M. Aamol, and G.-O. Kaasa, “Observer-based control of a managed pressure drilling system,” presented at the 2008 Chinese Control and Decision Conference (CCDC), 2008, pp. 3475–3480.
Ø. N. Stamnes, “Adaptive Observer for Bottomhole Pressure During Drilling,” Master thesis, Norwegian University of Science and Technology, 2007.