Blar i Institutt for maskinteknikk og produksjon på forfatter "Rausand, Marvin"
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Assessment of dynamic barriers in oil/gas well operations: Vurdering av dynamiske barrierer i olje/gass brønner
Tangstad, Jan Runar (Master thesis, 2014)Well integrity is an important topic in oil and gas well operations. The intention is to control the reservoir fluids and well pressures, by technical, operational and organizational barriers. Inadequate barriers can lead ... -
Condition Monitoring of Subsea Pipe Components in a Future Subsea Production Facility
Jacobsen, Lars Edward (Master thesis, 2013)Traditionally, subsea systems have been designed to achieve a lifetime of 20 to 30 years without the need for maintenance. Still, experience has shown that failures may occur, leading to expensive interventions requiring ... -
Decision Framework for Petrophysical Data Acquisition in the Development Well Planning Process
Bøklepp, Bjarne Rosvoll (Master thesis, 2008)As the Heidrun field has reached a decline from the initial hydrocarbon production plateau, there is an increasing need for alternative well solutions to be able to recover bypassed reserves in a cost effective manner. New ... -
Decision-oriented Operational Risk Assessment: Contributions to the understanding of operational risk in the oil and gas industry
Yang, Xue (Doctoral theses at NTNU;2017:71, Doctoral thesis, 2017) -
Determination of Beta-factors for Safety Instrumented Systems
Sun, Wenjing (Master thesis, 2013)SummarySafety instrumented systems are vital safety barriers to reduce the probability of the hazardous events and mitigate the consequences. Safety instrumented systems have been widely used in many kinds of industries. ... -
Improved Methods For Reliability Assessments Of Safety-Critical Systems: An Application Example For BOP Systems
Pinker, Remi (Master thesis, 2012)A blowout preventer is a safety critical system that is used during drilling and well interventions of oil and gas wells to make sure the operations are safe. The main function of a blowout preventer system is to seal the ... -
Modeling of Safety Functions in Quantitative Risk Analysis
Nguyen, Thien Duy (Master thesis, 2012)Quantitative risk analysis in the offshore industry is mandated by the Norwegian legislation. A literature survey is carried out, related to the current legislation from the Norwegian Petroleum Safety Authority (PSA) and ... -
Prediction of plant-specific failure rates
Huo, Shanshan (Master thesis, 2014)Reliability prediction plays a critical role in the reliability engineering process. It describes the process used to estimate the constant failure rate during the useful life of the system. For electronic components, the ... -
Production Assurance and Life Cycle Cost Evaluation of Offshore Development Projects in the Conceptual Design Phase
Wang, Liaoyi (Master thesis, 2012)RAM analysis is used to assess system availability in the oil and gas industry. As the concept design for reliability is getting attention throughout various industries, RAM analysis has become a mandatory delivery in the ... -
Proof-testing strategies induced by dangerous detected failures of safety-instrumented systems
Liu, Yiliu; Rausand, Marvin (Journal article; Peer reviewed, 2015)Some dangerous failures of safety-instrumented systems (SISs) are detected almost immediately by diagnostic self-testing as dangerous detected (DD) failures, whereas other dangerous failures can only be detected by ... -
Provision and Updating of Estimates of Reliability Parameters for Use in Reliability Analyses of Safety-Instrumented Systems
Bjartnes, Magnus Woll (Master thesis, 2012)Safety-instrumented systems are implemented in the industry to prevent accidents to occur and escalate. The blowdown system on a oil production ship is one example of such system. If a fire breaks out on the ship, the ... -
Provision of Reliability Data for New Technology Equipment in Subsea Production Systems
Dash, Ishita (Master thesis, 2012)For certain new technologies such as subsea processing systems reliability, compactness and easy maintainability are the most important factors to be considered while designing. This is because installation and retrieval ... -
Provision of Reliability Data for New Technology: Approach for estimation of failure rate function for a sub-sea pump
Vardelly, Indra Praveen Kumar (Master thesis, 2012)As part of the project thesis the candidate shall work on the following. 1. Document a literature survey of relevant reliability data sources and evaluate these with respect to applicability and quality. The data sources ... -
Reliability Allocation and Assessment of Safety-Instrumented Systems
Haugen, Jon Mikkel (Master thesis, 2014)Safety-instrumented systems (SISs) are technical systems that are used to protect humans, the environment, or assets from hazardous events. It is therefore important to ensure that these SISs are reliable. \citeauthor{61508} ... -
RELIABILITY ASSESSMENT OF A SUBSEA HIPPS
Stølen, Ellen Margrete (Master thesis, 2014)Safety instrumented systems are vital in the oil and gas industry. A SIS consists of input elements, a logic solver and final elements. A High Integrity Pressure Protection System is an example of such a system. HIPPS is ... -
Reliability Assessment of Safety Instrumented Systems: An Application Example For A Ballasting System: Pålitelighetsvurdering av instrumenterte sikkerhetssystemer: Med anvendelsesområde for et ballasteringssystem
Moen, Henrik Finnema (Master thesis, 2012)Ballast systems perform important safety functions on ships and floating facilities, and failure to ballast properly may lead to a major accident, involving multiple fatalities, release to environment and loss of vessel. ... -
Reliability assessment of subsea BOP control systems
Sætre, Øyvind (Master thesis, 2015)The subsea blowout preventer (BOP) and the BOP control system were the most important contributors to the Macondo accident in April 2010. A BOP is a large valve system used during the drilling phase; to seal, control, and ... -
Reliability assessment of subsea BOP shear ram preventers
Klingsheim, Jarand F (Master thesis, 2015)The objective of this report is to assess the reliability of blind shear rams (BSRs). The BSR's failure to seal off and secure the well in the Macondo incident proved the necessity of reevaluating the abilities of current ... -
Reliability Assessment of Subsea X-mas Tree Configurations
Wanvik, Petter Gullhav (Master thesis, 2015)The focus of this thesis is to provide input for choosing the optimal X-mas Tree (XT) configuration for a subsea production system. The subsea XT is used to direct, regulate, and stop the flow from a well. These functions ... -
Reliability of subsea blowout preventer systems - A study of the emergency disconnect function
Jonassen, Fredrik (Master thesis, 2015)The Deepwater Horizon accident in 2010 emphasizes the significance of safety in offshore drilling. The drilling rig was considered to be reliable and safe, but the blowout in the Gulf of Mexico costed eleven lives and the ...