Blar i Faculty of Science and Technology på tidsskrift "Annual Transactions - The Nordic Rheology Society"

Viser treff 1-4 av 4

    • Assessment of Yield Stress in Oil-Based Drilling Fluids 

      Ytrehus, Jan David; Feneuil, Blandine Fleur Prudence; Saasen, Arild (Peer reviewed; Journal article, 2023)
      Yield stress is commonly used to describe the rheological properties of drilling fluids. There are various methods to define such yield stress. Some approaches provide yield stress values sufficient to derive a proper fluid ...

    • The Effect of Lost Circulation Material on Herschel-Bulkley Parameters 

      Sele, Karoline Gjestland; Vrålstad, Jorunn Hamre; Klungtvedt, Karl Ronny; Saasen, Arild (Peer reviewed; Journal article, 2023)
      To hinder loss of drilling fluids into downhole formations while drilling geothermal, CO2 injection or petroleum wells, Lost Circulation Material (LCM) is added to the drilling fluids. These materials consist of many ...

    • Rheological properties of rock-based geopolymer slurries with different dispersant and counterion combinations 

      Alsvik, Inger-Lise; Vrålstad, Torbjørn; Perumal, Priyadharshini; Saasen, Arild (Peer reviewed; Journal article, 2023)
      The production of Ordinary Portland Cement (OPC) is responsible for a significant part of global CO2 emissions. A potential alternative to OPC is alkali-activated materials (AAM), which do not contain OPC and are not ...

    • Wet-granular rheology to measure cuttings-bed strength 

      Pedrosa, Camilo; Ytrehus, Jan David; Aschl, Timothy; Lund, Bjørnar; Saasen, Arild (Peer reviewed; Journal article, 2021)
      Drilled cuttings-bed formation is a natural process during wellbore drilling operations, although it is not desired. To optimally remove the drilled cuttings out of the wellbore it is important to break the formed beds. ...