Browsing Institutt for geovitenskap og petroleum by Title
Now showing items 2488-2507 of 2656
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U-Pb geochronological and whole-rock geochemical analysis of the augen gneiss of the Dagvolsjøen Nappe, central Norwegian Caldedonides
(Master thesis, 2023)Øyegneisen i Dagvolsjødekket i de sentrale, norske Kaledonidene er dårlig kartlagt, og moderne geokronologi og geokjemi mangler fra typelokaliteten nær Brekken i Røros kommune. For å få en bedre forståelse av øyegneisen ... -
Ulriken tunnel - Stabilitetsanalyse av bergstabbe mellom tunnelløp ved TBM driving
(Master thesis, 2017)Eksisterende Ulriken tunnel i Bergen har nådd sin kapasitetsgrense og Bane NOR er i gang med utbygging av ny tunnel for etablering av dobbeltspor. I den forbindelse drives det 7,8 km TBM-tunnel parallelt med eksisterende ... -
Ulriken tunnel - Vurdering av ingeniørgeologiske utfordringer og behov for videre undersøkelser/oppfølging under TBM-driving
(Master thesis, 2015)Eksisterende Ulriken tunnel mellom Arna og Fløen har nådd sin kapasitetsgrense, og Jernbaneverket har bestemt å bygge en ny tunnel som skal ligge parallelt med og 30 meter sør for eksisterende tunnel. Tunnelen skal være ... -
Ultra Long Extended Reach Drilling
(Master thesis, 2010)With the notion of evolving current Extended Reach Drilling, this master thesis examines if drilling 20–40km is feasible. Several reservoirs offshore in the area outside of Lofoten in the northern part of Norway are reachable ... -
Ultrasonic Evaluation of Clay Behind Casing
(Master thesis, 2017)There's an increasing number of oil fields on the Norwegian continental shelf that will go out of production in the coming years, resulting in a big demand for permanent plugging and abandonment (P&A) services. There are ... -
Ultrasonic Evaluation of Well Integrity
(Master thesis, 2014)This thesis presents the acoustic theory behind current ultrasonic cement evaluation tools. The UltraSonic Imager tool's pulse echo technique and the new Isolation Scanner tool's pitch-catch leaky lamb wave measuring ... -
Ultrasonic Studies of Stressed Sand and Clay: Roles of Lithology, Anisotropy and Saturating Fluid
(Doctoral thesis at NTNU;2015:208, Doctoral thesis, 2015)The main objective of the work presented in this thesis is to improve our understanding of elastic wave velocities in uncemented sediments, such as sand, clay and mixtures of sand and clay. The focus here has been on ... -
Umbilical Refill of Subsea Chemical Storage Tanks
(Master thesis, 2019) -
Umbilical Refill of Subsea Chemical Storage Tanks
(Master thesis, 2019) -
Uncertainty Analysis and Quantification in Olympus Synthetic Reservoir Model
(Master thesis, 2023)Denne studien tilbyr en analyse av usikkerheten knyttet til bunnhullstrykk (BHP) utført på det kunstige Olympus-reservoarmodellen. Forskjellige BHP-scenarier ble tatt i betraktning ved bruk av ulike reservoarrealiseringer. ... -
Uncertainty Analysis for Assessing Leakage Through Water Tunnels: A Case from Nepal Himalaya
(Journal article; Peer reviewed, 2010)Water leakage problems in unlined or shotcrete lined water tunnels are not new issues. In many occasions severe water leakage problems have been faced that not only have reduced the stability of the rock mass, but also ... -
Uncertainty analysis for assessing rock mass quality and water inflow in hard rock subsea tunnels
(Chapter, 2009)In many occasions considerable discrepancies have been found between predicted and actual rock mass conditions, resulting significant cost and time overrun. Finding innovative solutions for quantifying geological uncertainties ... -
Uncertainty analysis of tunnel squeezing for two tunnel cases from Nepal Himalaya
(Journal article; Peer reviewed, 2007)Weak rocks such as shale, slate, phyllite and schist, and the rock mass of weakness/fault zones are incapable of sustaining high tangential stress. Severe tunnel squeezing is therefore common in the tectonically active ... -
Uncertainty and probability analysis of rock slope engineering based on 3D modelling
(Master thesis, 2024)Etter hvert som digitaliseringen i samfunnet går raskt fremover, øker også bruken av digitale verktøy innen bergskråningsanalyse. Med mer tilgjengelig programvare og verktøy er mer komplekse analysemetoder nå mulig. Denne ... -
Uncertainty and risk assessment of leakage in water tunnels - a case from Nepal Himalaya
(Proceedings: World Tunnel Congress 2008;, Research report, 2008)Safety and stability are the key issues in underground excavations. Making tunnels water tight plays an important role in this regards. Water leakage problems in unlined or shotcrete lined water tunnels are not new issues. ... -
Uncertainty modelling of pore pressure by using Monte-Carlo approach in the Hammerfest Basin, Barents Sea
(Master thesis, 2017)The results of this study suggest that: 1) The present Hammerfest Basin is neither affected by large amount of overpressure, nor there is an ongoing leakage detected, 2) the present overpressure distribution in the basin ... -
Underground Hydropower Plants
(Chapter, 2022)Most of the hydropower plants developed in a mountainous topography consist different underground structures such as headrace tunnels, pressure tunnels and shafts, powerhouse caverns, tailrace, and access tunnels. Design ... -
Undersjøisk tunnel under Romsdalsfjorden - Ingeniørgeologisk analyse med spesiell fokus på strukturgeologi og erfaringar frå nærliggande anlegg
(Master thesis, 2017)Som ein del av prosjektet ferjefri E39, er det planlagt kryssing av Romsdalsfjorden med undersjøisk tunnel. Tunnelen vil bli ca. 16 km lang, med lågbrekk ved omlag 350 muh. I denne masteroppgåva vil det bli sett på moglege ... -
Understanding Chimneyin CO2 Plume at Sleipner Injection Site Through Pre-stack Elastic Forward Modeling
(Master thesis, 2011)CO2 produced at the Sleipner natural gas field is currently injected back into the Utsira Fm., a major sand formation in the North Sea.Since the injection started in 1996, seven time lapse surveys have been performed. The ... -
Understanding Coastal Processes and Evolution by Geomorphological Mapping along the North-eastern Coastline of Prins Karls Forland, Svalbard
(Master thesis, 2022)Feltarbeid på Prins Karls Forland fant sted i september 2021. Ulike prosesser som bidrar til utviklingen av kystlinja ble kartlagt, beskrivelser av sedimenter som utgjør strandsonen ble gjort og prøver tatt med til C-14 ...