Browsing Institutt for geovitenskap og petroleum by Author "Werner, Benjamin"

Now showing items 1-4 of 4

    • Cuttings Bed Erosion in Horizontal Wells 

      Ganga, Hugo Alexandre Machado (Master thesis, 2016)
      Many of the time consuming and economically demanding drilling problems faced today can be tracked back to poor hole cleaning, even more so when drilling through highly inclined sections. Improved hole cleaning operations ...

    • Effect of electric field on push-out strength of cemented steel pipes 

      Lavrov, Alexandre; Werner, Benjamin; Stroisz, Anna Magdalena; Øia, Thomas Monge; Gawel, Kamila; Torsæter, Malin; Jafariesfad, Narjes (Peer reviewed; Journal article, 2021)
      Cement-steel interfacial strength is an important measure for estimating the robustness and hydraulic sealing ability of wells. In this paper, laboratory experiments were performed in which small steel pipes (10 mm in ...

    • Effect of Preconditioning and Ageing on Rheological Properties of Model Drilling Fluids 

      Werner, Benjamin; Lund, Bjørnar; Kosberg, Birgitte; Johansen, Espen; Giil, Gunnar Lia; Ytrehus, Jan David (Chapter, 2017)
      Many drilling fluids are thixotropic, meaning that viscosity decreases with time when subjected to shear. Other fluids may show anti-thixotropic (rheopectic) behavior, i.e. viscosity increase with time when subjected to ...

    • The Influence of Drilling-Fluid Rheology on Cuttings-Bed Behavior 

      Werner, Benjamin (Doctoral theses at NTNU;2018:2, Doctoral thesis, 2018)
      Transporting cuttings out of the wellbore is an important part of every drilling operation to ensure efficiency and the reduction of non-productive time. The drilling fluids used for this task are complex fluid systems, ...