Browsing NTNU Open by Author "Larsen, Roar"
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Alternative propulsjonsløsninger for ny generasjon av ferger på Shetland
Lillebostad, Jon Inge; Larsen, Roar (Bachelor thesis, 2019)Hensikten med denne oppgaven er å designe et fremdriftssystem til en ferge med Polarkonsult som oppdragsgiver. Fergen skal gå på Shetland, i en strekning mellom Laxo – Symbister. Hensikten med oppgaven er å designe en ... -
An Experimental Study of Potassium Formate as a Potential Gas Hydrate Inhibitor in a Vertical Pipe
Oen, Karoline (Master thesis, 2017)Blocking of petroleum producing pipelines with clathrate hydrates of natural gases is a large issue in the industry. It causes loss of income in addition with health, safety and environmental concerns. This master thesis ... -
Aspects of Hydrate Management - Deposition Phenomena
Langen, Heidi (Master thesis, 2016)The purpose of this thesis has been to investigate the factors with the largest influence on the adhesion strength of a hydrate deposit on a solid surface. This has been done through a literature study on the subject, and ... -
Cold Flow Technical and Cost Efficiency Analysis
Fredriksen, Lise Susanne (Master thesis, 2017)Nowadays, subsea multiphase pipelines are commonly used in the deepwater oil-gas fields all over the world. However, when operating at such complex deepwater conditions, the problem of solid precipitation arises due to ... -
Dehydrating gas by using clathrate hydrates
Ang, Lorena Rachelle (Master thesis, 2011)In this study, an approach to utilize hydrates in a positive perspective by using them to dehydrate the gas stream was investigated. Tetrahydrofuran (THF) and water was applied as the model system to examine the dehydration ... -
Drilling Fluid Volume Change due to Hydrate Formation and its Impact on Well Control
Gunhildrud, Michaela; Helgestad, Bendik (Master thesis, 2017)Natural gas hydrates are crystal structures of water containing gas inside cavities. Hydrates can form if gas and water are present in a system with high pressure and low temperature conditions. Hydrate formation is ... -
Hydrate Prevention by Anti-Agglomerants - Parameters Impacting Flow Performance in Systems Where Hydrates are Present
Knudsen, Gunnar Fagerholt (Master thesis, 2017)Natural gas hydrates are crystalline compounds that, under the right pressure and temperature conditions, may form in hydrocarbon pipelines, causing transport complications. Several methods of countering this have been ... -
Modelling Phase Equilibria of CO2 Hydrates in Aqueous Solutions of Tetrabutylammonium Bromide
Undall, Linda Claire (Master thesis, 2017)The oil and gas industry s increased focus on efficiency in recent times, encourages development of new technologies. Technologies such as; hydrate based desalination, hydrate based gas capture, hydrate based gas transport ...