Blar i NTNU Open på forfatter "Aamo, Ole Morten"
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Combining laser triangulation with rotary measurements to generate a positional basis for a welding robot
Liavik, Espen (Master thesis, 2019)Bedriften WellConnection Monstad rapporterer at en tidskrevende sveise-prosess av roterende borerør forårsaker en flaskehals i produksjonslinjen deres. Etter et ønske om å fjerne denne flaskehalsen, vil bedriften undersøke ... -
Computer Vision-Based Infant Movement Assessment
Rahmati, Hodjat (Doctoral thesis at NTNU;2016:22, Doctoral thesis, 2016)The aim of this thesis is to develop an objective predictive model for cerebral palsy based on video recording of spontaneous movements of young infants. In the recent years, computer-based motion assessment methods have ... -
Control of a Time-Variant 1–D Linear Hyperbolic PDE using Infinite-Dimensional Backstepping
Anfinsen, Henrik; Aamo, Ole Morten (Journal article; Peer reviewed, 2018)We derive a state-feedback controller for a scalar 1-D linear hyperbolic partial differential equation (PDE) with a spatially-and time-varying interior-domain parameter. The resulting controller ensures convergence to zero ... -
Control Switching With Q-Learning on a Pendulum
Kawa, Hakar (Master thesis, 2020)In the field of control engineering, a global controller for a nonlinear system often comprises of several other local controllers. Each of the local controllers is responsible for a region of the operational condition and ... -
Control system design for concrete irrigation channels
Strecker, Timm; Aamo, Ole Morten; Cantoni, Michael (Chapter, 2017)Concrete channels find use at the periphery of irrigation networks, for expansion and to replace small earthen channels given the relative ease of maintenance and elimination of seepage losses. In design, it is important ... -
Deep Reinforcement Learning Applied to Managed Pressure Drilling
Arnø, Mikkel Leite; Godhavn, John-Morten; Aamo, Ole Morten (Chapter, 2020)During drilling operations, maintaining a desired downhole pressure between pressure margins is crucial to avoid damage to the formation and the well. The process is highly nonlinear, changing with depth, and every section ... -
Design and implementation of a mobile app for in-situ recommendations related to rig heave during offshore oil well drilling
Aanstad, Tobias.; Buer, Amund.; Eriksen, Stig Hope. (Master thesis, 2022)Denne masteroppgaven dokumenterer utviklingsprosessen for å forbedre den eksisterende konseptbevis-appen utviklet av gruppen i fordypningsprosjekter høsten 2021. Under prosjektets begynnelse ble en ny appspesifikasjon ... -
Design and implementation of a mobile app for in-situ recommendations related to rig heave during offshore oil well drilling
Buer, Amund; Eriksen, Stig Hope; Aanstad, Tobias (Master thesis, 2022)Denne masteroppgaven dokumenterer utviklingsprosessen for å forbedre den eksisterende konsept-bevis-appen utviklet av gruppen i fordypningsprosjekter høsten 2021. Under prosjektets begynnelse ble en ny appspesifikasjon ... -
Design and implementation of a mobile app for in-situ recommendations related to rig heave during offshore oil well drilling
Buer, Amund; Eriksen, Stig Hope; Aanstad, Tobias (Master thesis, 2022)Denne masteroppgaven dokumenterer utviklingsprosessen for å forbedre den eksisterende konsept-bevis-appen utviklet av gruppen i fordypningsprosjekter høsten 2021. Under prosjektets begynnelse ble en ny appspesifikasjon ... -
Design of an Electric X-mas Tree Gate Valve Actuator
Winther-Larssen, Einar H. (Master thesis, 2007)The increasing need for more energy in the world is making the oil companies search for hydrocarbons in deeper water and with longer distances between the well and platform(step-out) never experienced before. Current systems ... -
Detection of Stiction in Control Valves: an Algorithm for the Offshore Oil and Gas Industry
Kvam, Asgeir (Master thesis, 2009)Valve stiction is one of the largest stand-alone reasons for oscillatory behavior in process industry. It is reported by Siemens Oil and Gas that valve stiction is a problem that is hard and time consuming to detect at ... -
Development and Implementation of the Control System for an Autonomous Choke Valve for Downhole Flow and Pressure Control
Christensen, Martin Øvsthus; Gundersen, Egil (Master thesis, 2016)Drilling operations in the oil and gas industry calls for tight control of well pressure. A drilling fluid is used to control the pressure in the well, remove cuttings, and lubricate and cool the drill bit. If the well ... -
Direct predictive control of a first-order quasilinear hyperbolic PDE
Strecker, Timm; Aamo, Ole Morten; Cantoni, Michael (Journal article; Peer reviewed, 2019)We present a method for the boundary controlof a system governed by one hyperbolic PDE with a non-localcoupling term by state feedback. The method is an extensionof recently developed controllers for semilinear systems. ... -
Disturbance Attenuation in Linear 2 x 2 Hyperbolic Systems: With Application to the Heave Problem in Managed Pressure Drilling
Anfinsen, Henrik (Master thesis, 2013)Many physical systems can be modelled using linear 2 x 2 hyperbolic partial differential equations. The act of stabilizing systems of this type hastherefore been subject to extensive research, and a number of techniques ... -
Disturbance Attenuation in Managed Pressure Drilling
Albert, Anders (Master thesis, 2013)In reservoirs where multiple wells have been drilled, the window that the pressure has to stay within becomes smaller. This calls for tight control of the pressure profile in the well. An extra challenge is provided when ... -
Disturbance Attenuation in Managed Pressure Drilling Using Impedance Matching and an Experimental Lab Setup
Gleditsch, Martin Standal (Master thesis, 2013)Due to often harsh weather conditions and great water depths, the offshore drilling industry faces many challenges. One of these challenges is to counteract surge and swab pressure effects in the drilling well caused by ... -
Disturbance Rejection by Feedback Control in Offshore Drilling: Experimental Results
Albert, Anders; Aamo, Ole Morten; Godhavn, John-Morten; Pavlov, Alexey (Journal article; Peer reviewed, 2014)As oil exploration and development costs rise, the oil industry increases its efforts to improve oil recovery (IOR) from existing fields. IOR is achieved mainly by drilling more wells, but drilling in partially depleted ... -
Disturbance Rejection in 2 x 2 Linear Hyperbolic Systems
Aamo, Ole Morten (Journal article; Peer reviewed, 2013)Many interesting problems in the oil and gas industry face the challenge of responding to disturbances from afar. Typically, the disturbance occurs at the inlet of a pipeline or the bottom of an oil well, while sensing and ... -
A divided and prioritized experience replay approach for streaming regression
Arnø, Mikkel Leite; Godhavn, John-Morten; Aamo, Ole Morten (Peer reviewed; Journal article, 2021)In the streaming learning setting, an agent is presented with a data stream on which to learn from in an online fashion. A common problem is catastrophic forgetting of old knowledge due to updates to the model. Mitigating ... -
A dynamic model of two-phase flow for simulating gas kick and facilitating model-based control in drilling operations
Gjerstad, Alf Kristian; Aamo, Ole Morten (Peer reviewed; Journal article, 2021)A low-order two-phase dynamic flow model for drilling operations with gas kick is developed. The purpose is to enable fast and robust simulation of the behavior and propagation of influx gas in the bore hole, and the effects ...