Blar i Institutt for elektro, IT, og kybernetikk på forfatter "Viumdal, Håkon"
-
Developing ultrasonic soft sensors to measure rheological properties of non-Newtonian drilling fluids
Jondahl, Morten Hansen; Viumdal, Håkon (Journal article; Peer reviewed, 2019)Surveillance of the rheological properties of drilling fluids is crucial when drilling oil wells. The prevailing standard is lab analysis. The need for automated real-time measurements is, however, clear. Ultrasonic ... -
Ensemble learning in the estimation of flow types and velocities of individual phases in multiphase flow using non-intrusive accelerometers' and process pressure data
Yan, Ru; Viumdal, Håkon; Fjalestad, Kjetil; Mylvaganam, Saba (Chapter, 2022)Multiphase flows with oil/ gas/ water are common in oil and gas industries. Accurately identifying flow types and estimating flow velocities of the individual phases are crucial for different purposes, such as observing ... -
Model Based Early Kick/Loss Detection and Attenuation with Topside Sensing in Managed Pressure Drilling
Jinasena, Asanthi; Holta, Haavard H. F.; Jondahl, Morten Hansen; Welahettige, Prasanna Kumara Welahetti; Aamo, Ole Morten; Sharma, Roshan; Viumdal, Håkon; Lie, Bernt (Peer reviewed; Journal article, 2020)Early kick/loss detection is a crucial part of safe well control, and it plays a major role in the reduction of risk and non-productive time in drilling. In conventional drilling, topside sensing is used for early kick/loss ... -
Online Drilling Fluid Flowmetering in Open Channels with Ultrasonic Level Sensors using Critical Depths
Chhantyal, Khim; Viumdal, Håkon; Mylvaganam, Saba (Journal article; Peer reviewed, 2017)In drilling operations, non-Newtonian drilling fluid is continuously circulated in a closed loop. One of the ways to monitor and regulate drilling operations is by accurately measuring the flow rate of circulating drilling ... -
Rheological characterization of non-Newtonian Drilling Fluids with non-invasive Ultrasonic Interrogation
Jondahl, Morten Hansen; Viumdal, Håkon; Mozie, Kenneth Nonso; Mylvaganam, Saba (Journal article; Peer reviewed, 2017)The drilling process is generally costly and time consuming and prone to serious hazards. Cost-efficiency and enhanced safety measures are vital for any drilling operation. Recent studies indicate that poor reliability in ... -
Soft Sensing of Non-Newtonian Fluid Flow in Open Venturi Channel Using an Array of Ultrasonic Level Sensors—AI Models and Their Validations
Chhantyal, Khim; Viumdal, Håkon; Mylvaganam, Saba (Journal article; Peer reviewed, 2017) -
Sustainability Awareness through STEAM+
Timmerberg, Josef; Halvorsen, Hans-Petter; Viumdal, Håkon; Mylvaganam, Saba (Peer reviewed; Journal article, 2021)Innovative technology enterprises have been working closely with OECD countries to address issues related to sustainability. There are many acronyms associated with STEM, e.g. STEM+, incorporating the humanities, community ... -
Ultrasonic level scanning for monitoring mass flow of complex fluids in open channels — A novel sensor fusion approach using AI techniques
Chhantyal, Khim; Viumdal, Håkon; Mylvaganam, Saba (Peer reviewed; Journal article, 2017) -
Water Care System (WCS) for Numeric Water Quality Criteria (NWQC) with IoT/IoUT–Educational Implications of Sustainability Goal SDG 14
Tretjakova, Rasma; Halvorsen, Hans-Petter; Viumdal, Håkon; Mylvaganam, Saba; Timmerberg, Josef; Thiriet, Jean Marc (Chapter, 2022)In most developing countries and evolving countries, availability of potable water is scarce, and the water sources are very often unattended or unmonitored. Island states have the additional problems associated with ...