• Modeling of Swab and Surge Pressures: A Survey 

      Mohammad, Amir; Davidrajuh, Reggie (Peer reviewed; Journal article, 2022-03)
      Swab and surge pressure fluctuations are decisive during drilling for oil. The axial movement of the pipe in the wellbore causes pressure fluctuations in wellbore fluid; these pressure fluctuations can be either positive ...
    • Scheduling Drilling Processes With Petri Nets 

      Nejm, Saadallah (PhD thesis UiS;, Doctoral thesis, 2013)
      Safety issues in drilling are related to two facts: Wells are becoming more complex, and manually piloting a drilling rig is a difficult task which requires highly skilled personnel. Consequently, improving safety is ...