Browsing NORCE Energi og teknologi by Title

Now showing items 304-323 of 347

    • Status of Foam as a Liquid Blocking Agent in Porous Media: A Review 

      Solbakken, Jonas (Journal article; Peer reviewed, 2023)
      Abstract This article summarizes the state-of-the-art knowledge gained from field observations and laboratory studies regarding foam as a liquid controlling agent in porous media. Being the least explored property of foam, ...

    • Stick-slip and torsional friction factors in inclined wellbores 

      Aarsnes, Ulf Jakob Flø; Shor, Roman (Peer reviewed; Journal article, 2018)
      Stick slip is usually considered a phenomenon of bit-rock interaction, but is also often observed in the field with the bit off bottom. In this paper we present a distributed model of a drill string with an along-string ...

    • A Stochastic Covariance Shrinkage Approach in Ensemble Transform Kalman Filtering 

      Popov, Andrey A.; Sandu, Adrian; Nino-Ruiz, Elias D.; Evensen, Geir (Peer reviewed; Journal article, 2023)
      The Ensemble Kalman Filters (EnKF) employ a Monte-Carlo approach to represent covariance information, and are affected by sampling errors in operational settings where the number of model realizations is much smaller than ...

    • Subsea Motion Compensator – Scaled Test at Sea 

      Schlanbusch, Rune; Kandukuri, Surya T. (Research report, 2024)
      NORCE has analysed motion data collected from a scaled down version of an offshore floating wind substructure anchored outside Mandal, Norway. The purpose of the test was to demonstrate the effectiveness of a motion ...

    • Surface charge change in carbonates during low-salinity imbibition 

      Feldmann, Felix; Al-Shalabi, Emad W.; Hiorth, Aksel (Peer reviewed; Journal article, 2024)
      Optimizing the injection water salinity could present a cost-effective strategy for improving oil recovery. Although the literature generally acknowledges that low-salinity improves oil recovery in laboratory-scale ...

    • Surface Complexation Modelling of Wettability Alteration during Carbonated Water Flooding 

      Mehdiyev, Fagan; Erzuah, Samuel; Omekeh, Aruoture Voke; Fjelde, Ingebret (Peer reviewed; Journal article, 2022)
      CO2 capture and utilization is an effective tool in reducing greenhouse gas emissions and hence, combating global warming. In the present study, surface complexation modeling (SCM) with the geochemistry solver, PHREEQ-C, ...

    • A Survey on Distributed Fibre Optic Sensor Data Modelling Techniques and Machine Learning Algorithms for Multiphase Fluid Flow Estimation 

      Arief, Hasan Asyari; Wiktorski, Tomasz; Thomas, Peter (Peer reviewed; Journal article, 2021)
      Real-time monitoring of multiphase fluid flows with distributed fibre optic sensing has the potential to play a major role in industrial flow measurement applications. One such application is the optimization of hydrocarbon ...

    • Techno-Economic Evaluation of Carbon Capture, Utilisation and Storage; Case Study of Scenarios in Western Macedonia, Greece 

      Koukouzas, N.; Karametou, R.; Karapanos, Dimitrios; Maraslidis, G. S.; Tyrologou, P.; Coussy, Paula; Nermoen, Anders; Carneiro, J.; Mesquita, P.; Canteli, P. (Journal article, 2023)
      Over the previous decades, the region of Western Macedonia in Greece has become home to heavy industrial clusters. Carbon capture, utilisation, and storage (CCUS) is an essential technology for climate change mitigation ...

    • Tectonic-magmatic-hydrothermal interactions in a hot dry rock geothermal system: The role of the transfer and normal faults in the Acoculco caldera (Mexico) 

      Liotta, Domenico; Brogi, Andrea; Wheeler, Walter H; Bastesen, Eivind; Garduño-Monroy, Victor Hugo; Macias, José Luis; Sosa-Ceballos, Giovanni; Pola, Antonio; Avellán, Denis-Ramón; Bianco, Caterina; Olvera-García, Emmanuel; Gómez-Alvarez, Fidel; Israde-Alcantara, Isabel; Jiménez-Haro, Adrian; Piccardi, Luigi; Zucchi, Martina (Peer reviewed; Journal article, 2023)
      In the Acoculco caldera (hot dry rock system) two geothermal boreholes were planned to intersect fracture systems in the carbonate basement. Even though the caldera is located in an area of active deformation with high ...

    • The association of PTSD symptom severity with amygdala nuclei volumes in traumatized youths 

      Ousdal, Olga Therese; Milde, Anne Marita; Hafstad, Gertrud Sofie; Hodneland, Erlend; Dyb, Grete; Craven, Alexander R.; Melinder, Annika Maria D; Endestad, Tor; Hugdahl, Kenneth (Peer reviewed; Journal article, 2020)
      The amygdala is a core component in neurobiological models of stress and stress-related pathologies, including post-traumatic stress disorder (PTSD). While numerous studies have reported increased amygdala activity following ...

    • The dissolution of a miscible drop rising or falling in another liquid at low Reynolds number 

      Nordbotten, Jan Martin; Mossige, Joachim (Peer reviewed; Journal article, 2023)
      “A basic and basically unsolved problem in fluid dynamics is to determine the evolution of rising bubbles and falling drops of one miscible liquid in another” [D. D. Joseph and Y. Y. Renardy, Fundamentals of Two-Fluid ...

    • The generalization of Gulland’s method: How to estimate maturity ogives when juvenile data are missing while spawner demography is known 

      Heino, Mikko Petteri; Godø, Olav Rune; Dieckmann, Ulf (Peer reviewed; Journal article, 2019)
      The proportions of mature individuals at age or length, collectively known as the maturity ogive, are a key population characteristic and serve as critical input to age-disaggregated stock assessments. John Gulland showed ...

    • The Open Porous Media Flow Reservoir Simulator 

      Rasmussen, Atgeirr Flø; Sandve, Tor Harald; Bao, Kai; Lauser, Andreas; Hove, Joakim; Skaflestad, Bård; Klöfkorn, Robert; Blatt, Markus; Rustad, Alf Birger; Sævareid, Ove; Lie, Knut-Andreas; Thune, Andreas (Peer reviewed; Journal article, 2020)
      The Open Porous Media (OPM) initiative is a community effort that encourages open innovation and reproducible research for simulation of porous media processes. OPM coordinates collaborative software development, maintains ...

    • Tidal amplification and along‐strike process variability in a mixed‐energy paralic system prograding onto a low accommodation shelf, Edgeøya, Svalbard 

      Anell, Ingrid Margareta; Zuchuat, Valentin; Röhnert, A.D.; Smyrak-Sikora, Aleksandra; Buckley, Simon John; Lord, Gareth Steven; Maher, H.; Midtkandal, Ivar; Ogata, Kei; Olaussen, Snorre; Osmundsen, Per Terje; Braathen, Alvar (Journal article; Peer reviewed, 2020)
      The study describes the depositional development and sediment partitioning in a prograding paralic Triassic succession. The deposits are associated with the advance of large prism‐scale clinoforms across a shallower platform ...

    • Towards Building a Distributed Virtual Flow Meter via Compressed Continual Learning 

      Arief, Hasan Asyari; Thomas, Peter James; Constable, Kevin; Katsaggelos, Aggelos K. (Peer reviewed; Journal article, 2022)
      A robust–accurate estimation of fluid flow is the main building block of a distributed virtual flow meter. Unfortunately, a big leap in algorithm development would be required for this objective to come to fruition, mainly ...

    • TRA of DigiMon components 

      Vandeweijer, Vincent; Ködel, Uta; Lien, Martha; Bond, Tiziana; Candela, Thibault; Zhou, Wen; Butcher, Antony; Kendall, Michael; Stork, Anna; Mellors, Robert (ACT DigiMon (NORCE);D2.3, Research report, 2022)
      The DigiMon project aims to develop an affordable, flexible, societally embedded and smart monitoring system for industrial scale subsurface CO2 storage. For this purpose, the DigiMon system is to combine various types of ...

    • Transient Analysis of a Selective Partial-Update LMS Algorithm 

      Siqueira, Newton N.; Resende, Leonardo C.; Andrade, Fabio Augusto de Alcantara; Pimenta, Rodrigo M. S.; Haddad, Diego B.; Petraglia, Mariane R. (Journal article; Peer reviewed, 2024)
      In applications where large-order filters are needed, the computational load of adaptive filtering algorithms can become prohibitively expensive. In this paper, a comprehensive analysis of a selective partial-update least ...

    • Treatment fidelity in a pragmatic clinical trial of music therapy for premature infants and their parents: the LongSTEP study 

      Gaden, Tora Söderström; Gold, Christian; Assmus, Jörg; Kvestad, Ingrid; Stordal, Andreas Størksen; Bieleninik, Lucja; Ghetti, Claire (Peer reviewed; Journal article, 2023)
      Background Treatment fidelity (TF) refers to methodological strategies used to monitor and enhance the reliability and validity of interventions. We evaluated TF in a pragmatic RCT of music therapy (MT) for premature ...

    • Treavfall på Agder 

      Risinggård, Vetle Kjær (Research report, 2022)
      Mengden treavfall på Agder er kartlagt basert på Statistisk sentralbyrås sektorinndeling. Denne består av husholdningene, byggeaktivitet, industrien og de tjenesteytende næringene. Det er tildels store usikkerheter i ...

    • Triaxial behavior of a stabilized and a highly porous oil well cement paste at different saturation and drainage conditions 

      Lima, Victor Nogueira; Skadsem, Hans Joakim; Beltrán-Jiménez, Katherine; Zhemchuzhnikov, Alexandr; Velloso, Raquel Quadros; Silva, Flavio de Andrade (Peer reviewed; Journal article, 2022)
      Well cement is the most common barrier material in wells for geothermal and hydrocarbon production. As cements are exposed to hydrostatic loads and periods of deviatoric loading in wellbore environments, it is important ...