• Heave effects on Drill String during connections 

      Cespedes, Marco Antonio Guzman (Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)
      During the make-up and break-out of the connections, the drill string is wedged in the rotary table and the top of the drill string follows the platform heave movement as the bit is off bottom. This oscillation may be ...
    • Increasing Temperature Range of Geothermal Production Casing by Mechanical Pre-tensioning 

      Østvold, Tor David (Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06-15)
      Thermally-induced forces in a fully cemented geothermal production casing can cause compressive failure during production of high temperature formation fluids. These failures lead to production downtime and costly repairs. ...