Blar i Studentoppgaver (TN-ISØP) på emneord "uncertainty analysis"
Viser treff 1-5 av 5
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An Improved Basis for Estimating Riser Leak and Damage Frequencies
(Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-07-03)In the petroleum industry, risers are widely used to transport fluids and gases. Risers are intended to be critical integral components as they are subjected to numerous failure factors, where in case of a leak, a highly ... -
A further development of the extended risk based inspection methodology – guidelines and performance
(Masteroppgave/UIS-TN-IØRP/2011;, Master thesis, 2011)Risk Based Inspection (RBI) is a much used method for planning inspection intervals in the oil and gas industry. The RBI method has over the recent years proved to show fruitful results with regards to proactive risk ... -
Opportunistic maintenance models: Review and discussion with a special focus on the treatment of uncertainty
(Masteroppgave/UIS-TN-IØRP/2011;, Master thesis, 2011)In this thesis, we review and discuss the area of opportunistic maintenance models. We want to examine if the existing models can be useful as decision-support to maintenance management, and focus especially on the treatment ... -
Reliability of subsea equipment in order to verify safety integrity level (SIL) in presence of uncertainty
(Masteroppgave/UIS-TN-IØRP/2012;, Master thesis, 2012)The IEC standards 61508/61511 need to be defined and verified by the reliability targets or safety integrity targets for safety instrumented functions (SIF). The reliability targets or safety integrity targets are categorised ... -
Risk identification and risk management in pumping of gel fluids in pipeline applications
(Masteroppgave/UIS-TN-IØRP/2011;, Master thesis, 2011)The focus of this research work is to develop a model that will predict the pressure required to move a crosslinked gel plug in a pipeline in the hypothetical case of Halliburton Temblok 50 gel. In addition, this study ...