• Cement sheath modification using nanomaterials for long-term zonal isolation of oil wells: Review 

      Jafariesfad, Narjes; Geiker, Mette Rica; Gong, Yi; Skalle, Pål; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2017)
      Well cementing is an important operation during drilling and completion of oil wells. The cement sheath must maintain well integrity behind the casing and provide long-term zonal isolation to ensure safety and prevent ...
    • Electrokinetics Application in Concrete and Well Construction 

      Jafariesfad, Narjes; Geiker, Mette Rica; Sangesland, Sigbjørn; Gawel, Kamila; Torsæter, Malin (Chapter, 2020)
      Electrically induced or coupled transport processes including electrophoresis, electroosmosis and electromigration in solutions and porous media under an external electric field have been extensively studied and employed ...
    • Nano-Enabled Cement System for Well Cementing 

      Jafariesfad, Narjes (Doctoral theses at NTNU;2017:213, Doctoral thesis, 2017)
      The main goal of primary cementing is to provide zonal isolation in oil and gas wells. In general, the failure of the cement sheath to maintain long-term zonal isolation is due to: Low tensile properties ...
    • Nanorubber-modified cement system for oil and gas well cementing application 

      Jafariesfad, Narjes; Khalifeh, Mahmoud; Skalle, Pål; Geiker, Mette Rica (Journal article, 2017)
      Flexible cement systems with low shrinkage are more capable than the conventional cement systems to withstand the tensile stresses generated by fluctuation of temperature and pressure in oil and gas wells. In this work ...
    • Nanosized Magnesium Oxide With Engineered Expansive Property for Enhanced Cement-System Performance 

      Jafariesfad, Narjes; Geiker, Mette Rica; Skalle, Pål (Journal article, 2017)
      The bulk shrinkage of cement sheaths in oil wells can result in loss of long-term zonal isolation. Expansive additives are used to mitigate bulk shrinkage. To compensate effectively for bulk shrinkage during the late plastic ...