Browsing Studentoppgaver (TN-IKM / TN-IMBM) by Subject "marine and subsea technology"
Now showing items 1-14 of 14
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Analysis of ROV thrusters and small marine propellers at specific rotational speeds
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018)Thrusters are vital for the functionalities of remotely operated vehicles (ROVs). The development of thruster design is a trade-off between cost, thrust force, physical weight and size. Furthermore, it is known that problems ... -
Conditional monitoring and operational management of a subsea production system
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)There is an identified need for mid-level systems for monitoring a large number of subsea wells. To meet this demand Statoil is looking into developing a software program for such monitoring. As a step in this process, ... -
Dynamic analysis of emergency disconnect during workover operations
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)Emergency disconnect from the stack-up with large rig offset during well intervention is considered as a critical operation. Failure of disconnection from the well can lead to a major accident. Unofficial figures suggest ... -
Emergency operation of a subsea drilling blowout preventer
(Master thesis, 2015-06)The world-scale disaster in the Gulf of Mexico on 20 April 2011 drew the attention of the authorities and oil and gas companies to the reliability of the blowout preventer systems. The efficiency of emergency preparedness ... -
Evaluation of jack-up units in deeper water in the North Sea
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-16)The aim of this thesis has been to investigate challenges and possible limitation associated with purpose-built jack-up units for weathering the ultra harsh environment of the North Sea. Two Site-Specific Assessments ... -
Experimental investigation of accidental drops of drill pipes and containers during offshore operations
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-25)The dynamic motion of falling pipes in water is treated theoretically using slender body theory at present time. This thesis focuses on the experimental investigation of accidentally falling drill pipes and to some extent ... -
Feasibility study of selected riser concepts in deep water and harsh environment
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-11)Todays, oil and gas sources are explored in deep water and harsh environment. A riser system is one of the major sub-facilities to transfer oil and gas from the seabed to the host platform. One of the well-known riser ... -
Field development of a marginal oil field on the Norwegian Continental Shelf
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)A small model oil field Tesla has been created based on assumptions and data from an existing field. With a lifetime of 8 years and expected total production of 8 million Sm3 oil, it is a marginal development, where the ... -
Investigation of suction anchor pullout capacity under undrained conditions
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)Floating units are dependent on reliable mooring systems to ensure safety during marine operations. Suction anchors have proved to be a technologically viable and cost-effective concept. They are capable of precision ... -
Limiting operational wave criterion for spool installation lift - with emphasis on analysis and wind-wave modeling
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)Spools are rigid pipe sections which are parts of the infrastructure for transporting produced hydrocarbons and injection fluids subsea. Installing them includes a subsea lifting operation commonly carried out by use of ... -
Pipeline repair technology damage and repair assessment of pipelines with high residual stresses
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)Today in the offshore industry, there are an increasing number of pipelines that require both maintenance and repair. A wide specter of research in pipeline repair technology is available. Damage to a pipeline could be a ... -
Risk assessment of diesel engine failure in a dynamic positioning system
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-29)The high demand for hydrocarbons as the major source of energy has forced humans to expand the oil and gas industry beyond the shore. Because of the challenges of oil and gas exploration and production in deep waters, the ... -
Structural integrity assessment of shackle in subsea tether arrangements
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)Inspection images gives an impression that the H-link shackles are subjected to a combination of pitting, crevice and fretting corrosion. All these relate to localized corrosion. There are several coating breakdowns areas ... -
Subsea standalone vehicle system for Snorre
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)The rig manager on Snorre B, a semisubmersible production and drilling rig for Statoil, has expressed the need for a subsea standalone vehicle that can perform specific tasks when the conventional remote operated vehicles ...