Browsing USN Open Archive by Author "Jondahl, Morten Hansen"
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Data Driven Models for Estimation of Drilling Fluid Rheological Properties and Flow Rate
Jondahl, Morten Hansen (Doctoral dissertations at the University of South-Eastern Norway;65, Doctoral thesis, 2020-05-11)Pressure control during well drilling operations includes management of the well pressure above the formation pore pressure and below the formation fracture pressure. If these boundaries are not kept, an influx of formation ... -
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 ... -
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 ... -
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 ...