Blar i Institutt for geovitenskap og petroleum på emneord "Boreteknologi"

Viser treff 1-20 av 22

    • 2D Vertical Effective Stress Modeling of the Tor Area 

      Berg, Sabrina (Master thesis, 2012)
      The oil industry has been exploring and drilling for hydrocarbons for decades, and on the Norwegian Continental Shelf (NCS), most of the previously discovered big fields are in their ending phase. The remaining reserves ...

    • A Study in Limiting Factors for Extended Reach Drilling of Highly Deviated Wells in Deep Waters 

      Bakke, Øyvind Opsal (Master thesis, 2012)
      Drilling in deep water is requiring more advanced technology as fields at greater depths are being discovered. Managed Pressure Drilling and Dual Gradient Drilling are both offering different techniques for navigating ...

    • A Study of How to Implement Alternative Well Plugging Materials in Governing Regulations 

      Skjeldestad, Fredrik (Master thesis, 2012)
      The governing requirements and regulations for petroleum activities on the Norwegian Continental Shelf (NCS) refers to the industry standard NORSOK D-010 for technical and functional requirements for Plug & Abandonment ...

    • An Evaluation of Open Hole Zonal Isolation Solutions on Valhall 

      Nilsen Sivertsen, Ørjan (Master thesis, 2012)
      The Valhall field, operated by BP Norge, is a mature field in the North Sea requiring more attention than before to be able to maintain a viable production rate. Keeping the rate sufficient is ultimately done, in simple ...

    • Analysis of Hook load Signal to reveal the Causes of Restrictions 

      Glomstad, Tina Svensli (Master thesis, 2012)
      Wells that are drilled today are becoming deeper and more complex, and actions to make these wells economically justifiable are desired by oil companies. One method is to reduce the non-productive time during drilling by ...

    • Analysis of Well Design for Effective P&A of Production Wells 

      Bugge-Mahrt, Jørgen Haakon Juan Antoni (Master thesis, 2012)
      Plugging and Abandonment (P&A) has long been given little im- portance in the oil industry as the activity does not generate values, and preparing for it to be efficiently carried out was overshadowed by the interest of ...

    • Automatic Well Control Simulations 

      Erikson, Lars (Master thesis, 2012)
      Every year kick incidents occur, maybe best remembered by the Macondo blowout in April 2010 resulting in devastating oil spills throughout the Gulf of Mexico. Well control is one of the most important factors in any drilling ...

    • Circulating out minor influxes through open riser during dual gradient drilling with a partly evacuated riser 

      Austein, Jon (Master thesis, 2012)
      Today, with conventional drilling technology, the cost of drilling deep and ultra-deepwater wells is very high, thus many reservoirs are classified as non-economical. Some reservoirs may also be impossible to reach with ...

    • Drillpipe Rotation Effects on Pressure Losses 

      Skjold, Thorbjørn Lejon (Master thesis, 2012)
      Keeping control of the downhole pressure is important in any drilling situation, and especially when a narrow pressure window is experienced. The equivalent circulation density is influenced by rotation of the drillpipe, ...

    • ESP screening tool 

      Bredsten, Robin (Master thesis, 2012)
      Installing an electrical submersible pump can be a way to increase the production in a well. This report will explain some ways the electrical submersible pump can be installed and describe the different components in an ...

    • Gel Evolution in Oil Based Drilling Fluids 

      Sandvold, Ida (Master thesis, 2012)
      Drilling fluids make up an essential part of the drilling operation. Successful drilling operations rely on adequate drilling fluid quality. With the development of new drilling techniques such as long deviated sections ...

    • Gelling 

      Kronborg, Per Kristian Engvik (Master thesis, 2012)
      Today wells are drilled in deeper and colder water. If the circulation is stopped and the drilling fluid is at rest, most drilling fluids will develop gel strength. In colder water the gel strength becomes higher. To resume ...

    • Human related root causes behind oil well drilling accidents 

      Hernæs, Marthe Pernille Voltersvik (Master thesis, 2012)
      Many accident investigation techniques and other methods used by the petroleum industry today list a set of underlying human related causes and subsequent improvement suggestions. Do these techniques address the root cause ...

    • Improved drilling process through the determination of hardness and lithology boundaries 

      Solberg, Silje Marie (Master thesis, 2012)
      The main objective of drilling a well is the potential economic profit. The total cost of a drilling operation result from a complex interplay of many factors (Graham and Muench, 1959). Work that can optimize some of these ...

    • Lab for heave motion during Managed Pressure Drilling 

      Gjengseth, Camilla Sunde (Master thesis, 2012)
      A significant part of the world's remaining oil and gas prospects are challenging or impossible to reach by conventional methods. Examples are deep-water environments and depleted reservoirs with a narrow drilling window, ...

    • Lab For Heave Motion During Managed Pressure Drillintg 

      Svenum, Tollef-Ingebret (Master thesis, 2012)
      A significant part of the remaining oil and gas resources are present in harsh offshore environments and depleted reservoirs that are challenging to reach with conventional drilling methods. An ever increasing energy demand ...

    • Maintaining well integrity during slot recovery operations 

      Braune, Henrik (Master thesis, 2012)
      The temporary plug and abandonment (P&A) of old wells, and the following slot recovery, will be important for increasing the average rate of recovery from the Norwegian Continental Shelf (NCS). However, these operations ...

    • Managing pressure during underbalanced drilling 

      Råen, Jostein (Master thesis, 2012)
      AbstractUnderbalanced drilling has received more and more attention in recent years. The reason for that may be because many oil fields, especially on the Norwegian continental shelf, have started to show signs of aging. ...

    • Methods of Pore Pressure Detection from Real-time Drilling Data 

      Stunes, Sindre (Master thesis, 2012)
      The knowledge of formation pore pressure, and how it changes throughout the length of a well, is crucial in terms of maintaining control of the wellbore. Failure to recognize deviations from the expected pressures can lead ...

    • Modellering av YPL Fluid Strømning i Eksentrisk Annulus med Borestrengsrotasjon 

      Næsgaard, Henrik Sehested (Master thesis, 2012)
      Denne oppgaven omhandler teoretisk modellering av trykktap grunnet rotasjon i eksentriske borehull med Herschel-Bulkley strømning. En eksisterende modell for trykktap for konsentriske borehull ble videreført til å inkorporere ...