Browsing UiS Brage by Author "Fjelde, Kjell Kåre"

Now showing items 1-20 of 34

    • A comparison of working stress design and reliability based casing design 

      Nyhus, Karoline (Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-15)
      Working stress design is the most common design method used on the Norwegian continental shelf and its simplicity makes it easy to understand. However, other methods as the reliability based design gives a different view ...

    • A Novel Approach to Qualifying Bismuth as a Barrier Material 

      Knutsen, Trine (Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-12)
      The barrier material conventionally used for permanent P&A is cement. Since two barriers are a requirement to properly isolate potentially flowing formations, the reliability of the barriers could be enhanced by introducing ...

    • Alternatives to conventional rig for P&A on fixed installations 

      Hovland, Martin (Bachelor thesis, 2023)
      Looking forward, there will be a need of performing a considerable number of permanent plugging and abandoning (PP&A) of oil and gas wells on the Norwegian Continental Shelf (NCS). These wells just cannot be left behind. ...

    • An End-To-End Machine Learning Project for Detection of Stuck Pipe Symptoms During Tripping Operations 

      Pacis, Felix James (Master thesis, 2021)
      Non-productive time due to stuck pipe costs the Oil and Gas industry substantial losses amounting to $250 million annually [1]. Thus, it is imperative for companies to invest in tools that can aid in prevention. This study ...

    • An Overview and Discussion of MPD Systems used in Offshore Operations 

      Vik, Elisabeth; Sommernes, Ida Morberg (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)
      Globally, established fields are reaching maturity and easily accessible reserves have already been exploited. The remaining reserves are generally more difficult to drill and attempting to drill them using conventional ...

    • Applications and Selection of Dissolvable Materials in Well Completions 

      Keerthivasan, Vijay Kumar (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06-15)
      Dissolvable materials are an emerging technology in the petroleum industry with multiple areas of application, the chief among them being multistage well stimulation. The challenges associated with removal of traditional ...

    • Blowout Flow Rate Modelling 

      Kamilla, Helland (Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-15)
      A blowout represent one of the major concerns associated with drilling, completion, maintenance and production of an oil field. Calculation of blowout rate is commonly one of the first steps in an Environmental Risk Analysis, ...

    • Boundary Condition Treatment in a Transient Flow Model 

      Roxman, Keino (Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-14)
      Transient flow modelling used for hydraulic calculations and well control evaluations is a vital part to the safety in the industry to properly prepare and build correct procedures when constructing wells. Modeling liquid ...

    • Comparison Between a Numerical Model and an Analytical Model for Drag Prediction 

      Abrahamsen, Camilla (Master thesis, 2022)
      High torque and drag create problems in directional wells. Directional wells have increased in inclination and length over the years, whereas the extended reach wells (ERW) are particularly prone to torque and drag ...

    • A Comparison of Different Models for Probabilistic Kick Tolerance Calculations 

      Kristoffersen, Martine (Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-14)
      Kick tolerance is an evaluation of how large kick sizes an open hole section can withstand without threatening the formation integrity at the shoe. If a certain kick size cannot be handled safely, the planned open hole ...

    • Drilling an ERD Well on the Statfjord Field, North Sea 

      Hussain, Sajjad (Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-04-05)
      Old platforms are not well known for extended-reach drilling (ERD) operations mainly due to rig and hydraulics limitations. ERD wells demand robust rig capabilities, good hydraulics systems, and equipment reliability. In ...

    • Energibrønner 

      Andersen, Amalie Frafjord; Kolstø, Sara Marlen (Bachelor thesis, 2023)
      Det foreligger i dag et stort behov for å finne nye grønne energikilder som er bærekraftige. Vi trenger nye energikilder som ikke påvirker miljøet negativt og som i tillegg gir stabil tilførsel av energi gjennom hele året. ...

    • Energibrønner 

      Kolstø, Sara Marlen; Andersen, Amalie Frafjord (Bachelor thesis, 2023)
      Det foreligger i dag et stort behov for å finne nye grønne energikilder som er bærekraftige. Vi trenger nye energikilder som ikke påvirker miljøet negativt og som i tillegg gir stabil tilførsel av energi gjennom hele året. ...

    • ERD Wells & Drag Calculations 

      Ramstad, Magnus Fosnes (Bachelor thesis, 2021)
      This thesis investigated Extended reach drilling (ERD), which is the term for drilling high-angle, long horizontal directional wells. ERD wells has had tremendous developments, as new technology continues to break worlds ...

    • Futuristic Approach to Riserless Plug and Abandonment Operations 

      Øia, Thomas Monge (Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-13)
      On the Norwegian Continental Shelf (NCS) today, there are 1033 subsea wells that are classified with the status online/operational, Drilling, Predrilled, Suspended and Closed[1] and these subsea wells will have to be ...

    • Hvordan bestemme settedyp for fôringsrør. 

      Flatebø, Ida (Bachelor thesis, 2022)
      Det viktigste for valg av settedyp og formasjonsvalg for de ulike foringsrørene er å avgjøre hvor de trengs. Man må regne med å måtte øke slamvekten som følge av økende poretrykk. Fra poretrykksberegninger og formenasjons-styrke ...

    • Improved Dynamic Modelling of Two-Phase Flow in Well Control Operations 

      de Sousa Gomes, Dalila (PhD thesis UiS;577, Doctoral thesis, 2021-03)
      This thesis focuses on exploring applications and optimizing transient numerical models for simulating well control situations. The main scope of the research was to find opportunity for improving existing numerical models ...

    • Inclusion of mass transfer terms in the AUSMV transient flow model 

      Waldeland, Jahn Otto (Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06)
      Gas contamination of an oil-based drilling mud while performing drilling operations, having influx of formation gas into the borehole in the form of a gas kick; pose a potential hazard to the personnel, environment and the ...

    • Life Cycle Well Integrity and Reliability 

      Haaland, Bjarne (Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-11)
      This thesis presents a method for reliability based casing design. The method is inspired by the model described by Das et al. (2015) - A model for Well Reliability Analysis throughout the Life of a Well Using Barrier ...

    • Modelling and Simulation of Annular Pressure Build up 

      Elsheikh, Muhammed Mahmoud Abdelrhman (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)
      Annular pressure buildup (APB) has been a concern for well design in the recent years. It is a phenomenon that relates mainly to subsea wells with possibly no means to release the pressure building up in closed annuli. ...