G. Nygaard

发表

A Simple Transient Flow Model for MPD and UBD Applications

Steinar Evje, Gerhard Nygaard, John Emeka Udegbunam, 2014 .

Underbalanced Drilling: Improving Pipe Connection Procedures Using Automatic Control

Saba Mylvaganam, Gerhard Nygaard, Kjell Kåre Fjelde, 2004 .

Decentralized Adaptive Sabilization for Large-Scale Systems with Unknown Time-Delay

Jing Zhou, Gerhard Nygaard, Jing Zhou, 2011 .

Managed Pressure Drilling: A multi-level control approach

Michael Nikolaou, Gerhard Nygaard, Hardy Siahaan, 2010 .

Simultaneous Continuous Monitoring of the Drilling-Fluid Friction Factor and Density

Liv A. Carlsen, Gerhard Nygaard, Rune W. Time, 2013 .

Reservoir Characterization during Underbalanced Drilling: Methodology, Accuracy, and Necessary Data

Rolf Johan Lorentzen, Antonino Merlo, Gerhard Nygaard, 2002 .

Bottomhole Pressure Control During Drilling Operations in Gas-Dominant Wells

Saba Mylvaganam, Rolf Johan Lorentzen, Gerhard Nygaard, 2007 .

Bottomhole Pressure Control During Pipe Connection in Gas-Dominant Wells

Saba Mylvaganam, Rolf Johan Lorentzen, Gerhard Nygaard, 2004 .

Evaluation of Automated Drilling Technologies Developed for Petroleum Drilling and Their Potential when Drilling Geothermal Wells

Gerhard Nygaard, Helga Gjeraldstveit, Oddvar Skjæveland, 2010 .

POTENTIALS FOR COST REDUCTION FOR GEOTHERMAL WELL CONSTRUCTION IN VIEW OF VARIOUS DRILLING TECHNOLOGIES AND AUTOMATION OPPORTUNITIES

Leif Jarle Gressgård, M. Eriksson, Kåre Hansen, 2012 .

Reservoir Characterization During Underbalanced Drilling (UBD): Methodology and Active Tests

Rolf Johan Lorentzen, Gerhard Nygaard, Geir Nævdal, 2006 .

Managed-Pressure Drilling: Using Model Predictive Control To Improve Pressure Control for During Dual-Gradient Drilling

Michael Nikolaou, Gerhard Nygaard, Øyvind Breyholtz, 2011 .

A novel model-based scheme for kick and loss mitigation during drilling ☆

Ole Morten Aamo, Espen Hauge, John-Morten Godhavn, 2013 .

Automatic control of managed pressure drilling

Michael Nikolaou, Gerhard Nygaard, Øyvind Breyholtz, 2010, Proceedings of the 2010 American Control Conference.

Adaptive observer for kick detection and switched control for bottomhole pressure regulation and kick attenuation during managed pressure drilling

Jing Zhou, Øyvind Breyholtz, G Nygaard, 2010, Proceedings of the 2010 American Control Conference.

Performing the Dynamic Shut-In Procedure Because of a Kick Incident When Using Automatic Coordinated Control of Pump Rates and Choke-Valve Opening

Michael Nikolaou, Jerome Schubert, Liv A. Carlsen, 2008 .

Automatic model-based control scheme for stabilizing pressure during dual-gradient drilling

Jing Zhou, Gerhard Nygaard, Jing Zhou, 2011 .

On a Novel, Simplified Model Framework Describing Ascorbic Acid Concentration Dynamics

Gerhard Nygaard, G. Nygaard, 2019, 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

Automatic Calibration of Real-Time Computer Models in Intelligent Drilling Control Systems - Results From a North Sea Field Trial

Erik Wolden Dvergsnes, Gerhard Nygaard, Hans Petter Lohne, 2008 .

Automatic Evaluation of Near-Well Formation Flow Interaction during Drilling Operations

Gerhard Nygaard, Hans Petter Lohne, Jan Einar Gravdal, 2008 .

Integration of impedance measurements with transit time measurements for ultrasonic gas mass flow metering-model and experiments with transducers in different vibration modes

H. Engan, S. Mylvaganam, G. Nygaard, 2000, 2000 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.00CH37121).

On the Advection-Upstream-Splitting-Method Hybrid Scheme: A Simple Transient-Flow Model for Managed-Pressure-Drilling and Underbalanced-Drilling Applications

Steinar Evje, Gerhard Nygaard, John Emeka Udegbunam, 2015 .

Nonlinear model predictive control scheme for stabilizing annulus pressure during oil well drilling

Gerhard Nygaard, Geir Nævdal, G. Nævdal, 2006 .