Browsing Studentoppgaver (TN-IKM / TN-IMBM) by Subject "undervannsteknologi"
Now showing items 41-60 of 193
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Comparison study of deepwater installation methods
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-16)The combination of deeper offshore field developments and larger, more complex subsea structures results in new requirements and challenges for installation vessels and related deployment systems. The conventional vertical ... -
Comparison study of selected uncoupled riser concepts in deep water and harsh environment
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-13)Installing deep water risers in harsh environmental conditions even in the icing environment, in the near future seems like inevitable. Especially in the Norwegian Sea, the development of deep water technology requires an ... -
Comparisons study of S-Lay and J-Lay methods for pipeline installation in ultra deep water
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)The pipeline industry has developed its technical capabilities to enable operations in deeper water. In ultra deepwater developments, the offshore industry has been challenged to solve demanding tasks, to develop new and ... -
Computational Fluid Dynamics (CFD) Investigations of Flow-Induced Vibrations of Two Rigidly Coupled Cylinders at High Reynolds Number
(Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020)Two degree-of-freedom (2-DoF) flow-induced vibrations (FIV) of a single cylinder and two rigidly coupled cylinders are numerically investigated at the Reynolds number of 3.6 × 10^6. Two-dimensional (2D) Unsteady ... -
Concept design of self-contained remotely controlled running tool
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011) -
Concept design of self-contained remotely controlled running tool
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011) -
Concept evaluation of tethered station keeping system for a mono-hull floating offshore vertical axis wind turbine
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-14)The objective of this thesis is to perform a concept evaluation of novel station keeping concept for offshore vertical axis wind turbines based on the well-known tension leg platform (TLP) principle. The main characteristic ... -
Concept of a FLNG vessel for the Russian Arctic shelf
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)The implementation of FLNG will introduce flexibility and mobility in the gas market. When we use pipeline transportation, the producer and the buyer are connected for decades by the created infrastructure, while in using ... -
Concept of a Pipeline Protection against Ice Ridges and Vortex-Induced Vibrations
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)The development of offshore oil and gas fields involves a few challenges concerning the pipeline on-bottom protection, particularly in the Arctic zone. In the shallow waters the ice ridges may make dangerous gouges, hence, ... -
Conception and development of method / apparatus for close-visual inspection of subsea structures in underwater poor visibility condition
(Masteroppgave/UIS-TN-IKM/2010;, Master thesis, 2010)Attempt has been made to demonstrate that in unclear water to zero underwater visibility conditions, where ordinarily, underwater divers would be unable to observe objects, it is easily possible to perform inspections ... -
Condition based maintenance for well access systems
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-13)Number of intervention operations in subsea wells has been increasing last years. During the intervention operations workover and completion risers are subjected to large environmental loads. Intervention operations are ... -
Considerations when lifting large module in different geographical areas
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Through the years in the oil and gas industry, the marine operations have been developing, and it continuous to develop. More production facilities offshore are under construction, and the activities offshore seem to ... -
Controlled lateral buckling design of pipelines
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-16)Constrained high temperature and pressure pipelines (HPHT) are subjected to global buckling due to plane strain condition developed by virtual anchorage of soil friction resistance and subsea facilities. Any uncontrolled ... -
Corrosion challenges due to the introduction of Resident Work ROVs
(Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-14)The lasts development in remotely operated vehicles, ROV, have led to the introduction ofResident ROVs that is supposed to stay submersed for longer periods without the frequent maintenance. The increased time between ... -
Cost and safety efficient plugging and abandonment of subsea wells by a smaller vessel
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011-11-08)The main objective of this thesis is to evaluate challenges in satisfying rules and regulations set by regulatory bodies, constrains related to the well status as well as the limitation of technology available to perform ... -
Coupled dynamic analysis of cylindrical FPSO, moorings and riser based on numerical simulation
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)The hostile environments are presently one of the challenges that should to be deal with in offshore floating system design where the hydrodynamic interaction effects and dynamic responses dominate the major consideration ... -
Design and development of portable nitrogen generator for Oil & Gas installations
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)In the oil and gas industry more applications are using nitrogen, nitrogen have normally been produce onshore and transported to an offshore installation, in bottle racks or liquefied in vessels. Since the demand after ... -
Design and operation of anchor handling tug supply vessels (AHTS)
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013-06-15)The deep water oilfield market is becoming more important as the conventional oilfield market in shallow water cannot meet the energy requirements from the consuming market. The Offshore Support Vessels (hereafter it is ... -
Design of a handling mechanism for deployment of multiple concrete mattresses in a single lift
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06-15)If one could imagine a single pipeline spanning approximately 11,000 km from Oslo, Norway to Bangkok, Thailand, this would be similar to the total length of the Norwegian oil and gas pipeline network combined [1]. The ... -
Design of bore selector for tordis vigdis workover system
(Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)The cost of the workover system and the time required to run the workover equipment constitute a significant component in the subsea workover/intervention cost. But, the cost can be minimized by modifying traditional ...