Blar i UiS Brage på forfatter "Taghipour, Ali"

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    • Cuttings transport with oil- and water-based drilling fluids 

      Ytrehus, Jan David; Lund, Bjørnar; Taghipour, Ali; Saasen, Arild (Chapter, 2021)
      Deviated well sections are common in modern well construction. In mature areas like the North Sea region, practically all producers or injector wells will have highly deviated sections. These wells must be drilled and ...

    • The Effect of Different Drilling Fluids on Mechanical Friction 

      Ytrehus, Jan David; Taghipour, Ali; Golchin, Arash; Saasen, Arild; Prakash, Braham (Peer reviewed; Journal article, 2017)
      A very important aspect in highly inclined wellbores is the mechanical friction. For extended reach drilling (ERD) and through tubing extended reach drilling (TTERD) this can be a limiting factor. Friction caused by the ...

    • Experimental Methods for Investigation of Drilling Fluid Displacement in Irregular Annuli 

      Lund, Bjørnar; Taghipour, Ali; Ytrehus, Jan David; Saasen, Arild (Peer reviewed; Journal article, 2020)
      Experimental methods are still indispensable for fluid mechanics research, despite advancements in the modelling and computer simulation field. Experimental data are vital for validating simulations of complex flow systems. ...

    • Hydraulic Behavior in Cased and Open Hole Sections in Highly Deviated Wellbores 

      Ytrehus, Jan David; Lund, Bjørnar; Taghipour, Ali; Kosberg, Birgitte Ruud; Carazza, Luca; Gyland, Knud Richard; Saasen, Arild (Chapter, 2019)
      In this paper we present results from flow loop experiments with an oil-based drilling fluid with micronized barite as weight materials. The use of micronized barite allows using lower viscosity drilling fluid, providing ...

    • Oil-based drilling fluid's cuttings bed removal properties for deviated wellbores 

      Ytrehus, Jan David; Lund, Bjørnar; Taghipour, Ali; Carazza, Luca; Gyland, Knud Richard; Saasen, Arild (Peer reviewed; Journal article, 2021)
      Results from cuttings transport tests in the laboratory using different field-applied oil-based drilling fluids with similar weight and varying viscosities are presented in this paper. The fluids are designed for highly ...