NORCE Energi og teknologi
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Automated snow avalanche monitoring for Austria: State of the art and roadmap for future work
(Peer reviewed; Journal article, 2023)Avalanches pose a significant threat to the population and infrastructure of mountainous regions. The mapping and documentation of avalanches in Austria is mostly done by experts during field observations and covers usually ... -
The Performance of Distributed Acoustic Sensing for Tracking the Movement of Road Vehicles
(Journal article; Peer reviewed, 2023)In this paper we introduce Distributed Acoustic Sensing (DAS) and discuss its potential application in Intelligent Transportation Systems (ITS). We present the fundamentals of the technology and data processing methods ... -
Induced Currents in the Lining and Steel Shell of Submerged Arc Furnaces
(Peer reviewed; Journal article, 2023)Numerical models in 2D and 3D are used to study induced currents in the lining and steel shell of large three-phase submerged arc furnaces. The alternating currents supplied through the electrodes cause a significant amount ... -
Self-Attenuation of Drillstring Torsional Vibrations Using Distributed Dampers
(Peer reviewed; Journal article, 2023)During drilling operations, drillstring vibrations cause many downhole dysfunctions, resulting in underperformance, equipment failure, and possibly wellbore damage. Current drillstring vibration mitigation solutions are ... -
Investigation of field scenarios using a 4n degrees of freedom transient torque and drag model
(Peer reviewed; Journal article, 2023)A coupled drill string dynamics model presents an opportunity to understand, replicate and potentially control the vibrations occurring along a drill string in a deep well. This paper describes a 4n degrees of freedom ... -
Clock Synchronization and Timestamping of Data on Acquisition at the Wellsite: Guidelines and Recommendations
(Peer reviewed; Journal article, 2023)Due to the nature of drilling operations, there are several companies collecting data at the rig. The data acquisition system of each company applies its own timestamp to the data. Subsequent aggregation of data (for ... -
Advances in InSAR Analysis of Permafrost Terrain
(Peer reviewed; Journal article, 2024)Differential interferometric synthetic aperture radar (InSAR) is a remote sensing technique for measuring surface displacements with precision down to millimeters, most commonly from satellites. In permafrost landscapes, ... -
Data Rate Performance of Mobile Multiuser MIMO Underwater Acoustic Communication Systems
(Peer reviewed; Journal article, 2024)This article presents a study of the Multiuser Multiple-Input Multiple-Output (MU-MIMO) Method for the multiple access of multiuser mobile underwater acoustic communications. Orthogonal multiple access schemes, such as ... -
Underground Hydrogen Storage: Technology Monitor Report
(Research report, 2023) -
An agenda for the future of Arctic snow research: the view from Svalbard
(Journal article; Peer reviewed, 2023)The Arctic region is warming at over twice the mean rate of the Northern Hemisphere and nearly four times faster than the globe since 1979. The local rate of warming is even higher in the European archipelago of Svalbard. ... -
Iterative Ensemble Smoothers for Data Assimilation in Coupled Nonlinear Multiscale Models
(Journal article; Peer reviewed, 2024)This paper identifies and explains particular differences and properties of adjoint-free iterative ensemble methods initially developed for parameter estimation in petroleum models. The aim is to demonstrate the methods’ ... -
Integrity Experiments for Geological Carbon Storage (GCS) in Depleted Hydrocarbon Reservoirs: Wellbore Components under Cyclic CO2 Injection Conditions
(Journal article; Peer reviewed, 2024)Integrity of wellbores and near wellbore processes are crucial issues in geological carbon storage (GCS) projects as they both define the confinement and injectivity of CO2. For the proper confinement of CO2, any flow of ... -
Quantum maximum power point tracking (QMPPT) for optimal solar energy extraction
(Journal article; Peer reviewed, 2024)Solar energy is key to achieving a more environmentally responsible future. One way to exploit it is to use semiconductor technology through solar panels to generate clean, sustainable, and controllable energy. However, ... -
Robust Optimization Using the Mean Model with Bias Correction
(Journal article; Peer reviewed, 2024)Optimization of the expected outcome for subsurface reservoir management when the properties of the subsurface model are uncertain can be costly, especially when the outcomes are predicted using a numerical reservoir flow ... -
Using the Quemada rheology model for drilling fluids - practical considerations
(Journal article; Peer reviewed, 2024)A mathematical description of the Quemada rheological model is given, focusing on realistic drilling fluids. The purpose of the work described is to derive results that are required for robust, accurate, and efficient ... -
Metaheuristic algorithms and their applications in wireless sensor networks: review, open issues, and challenges
(Journal article; Peer reviewed, 2024)Metaheuristic algorithms have wide applicability, particularly in wireless sensor networks (WSNs), due to their superior skill in solving and optimizing many issues in different domains. However, WSNs suffer from several ... -
Autonomous UAV Exploration and Mapping in Uncharted Terrain Through Boundary-Driven Strategy
(Journal article; Peer reviewed, 2024)Unmanned Aerial Vehicles (UAVs) play a crucial role in exploring unpredictable terrains, such as accident sites and search zones. These robots require autonomous navigation and precise path planning to operate safely and ... -
Feature extraction and pattern recognition in time-lapse pressure transient responses
(Journal article; Peer reviewed, 2024)Monitoring of modern wells equipped with permanent downhole gauges and flowmeters provides large datasets of pressure, temperature and flowrate measurements. On a limited scale, selected events from these datasets are ... -
Overview of how the Calculation of Dynamic Temperature of Drilling Fluids is Closely Linked with Rheology
(Journal article; Peer reviewed, 2024)Based on many years of work with the calculation of dynamic temperature of drilling fluids during operations, a pedagogic overview of how the calculation of heat transfer and temperature is closely linked with fluid flow ...
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