Browsing Institutt for geovitenskap og petroleum by Title
Now showing items 2388-2407 of 2530
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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 ... -
Understanding the impact of stress release on sandstone using sound waves: rock physics, applications and code
(Doctoral theses at NTNU;2024:100, Doctoral thesis, 2024)The acoustic and elastic responses of sandstones vary with changes in effective stress. Laboratory measurements have indicated that among different types of sandstones, velocities and elastic moduli of weakly cemented ... -
Undersøkelse av fenomenet hydraulisk jekking som følge av sementbasert forinjeksjon i Svartåstunnelen, vestgående løp på E134 ved Kongsberg, Buskerud
(Master thesis, 2018)En reduksjon av grunnvannsnivået kan føre til setningsskader på hus og annen infrastruktur, drenering av elver og innsjøer, og skade på den omkringliggende floraen og faunaen. For å forhindre at dette skjer i forbindelse ... -
Undersøkelse av forvitret fjell og blokkhav på fjellet Gamlemsveten - Karakterisering av kornstørrelse, leirmineralogi og porøsitet
(Master thesis, 2022)Gamlemsveten er et fjell utenfor Ålesund dekket av tilsynelatende steddannet blokkhav og flere meter med forvitringsmateriale. Forvitret grunnfjell har tidligere vært gode olje- og gassreservoarer, hvor porøsitet er en ... -
Undersøkelse av poretrykksøkning i kvikkliereavsetning som følge av sementbasert forinjeksjon i Åstunnelen, to-løps tunnel på E6 Trøndelag
(Master thesis, 2023)Innlekkasje i tunnelanlegg som kan føre til en drenering av grunnvannet rundt anlegget er et velkjent problem ved driving av norske tunneler. Innlekkasje i tunnelanlegget hindres vanligvis ved å benytte forinjeksjon. ... -
Undersøkelser av hydrogeologiske forhold i et kystnært grunnvannsmagasin – Kartlegging av grunnvannsstrømning og interaksjon mellom ferskt grunnvann, elv og salt grunnvann ved nyetablerte løsmassebrønner på Kyrksæterøra i Heim kommune
(Master thesis, 2020)Hydrogeologien i et fjorddelta på Kyrksæterøra i Heim kommune er undersøkt. Det er utført felt- og laboratoriearbeid i en periode med prøvepumping av grunnvann fra to nyetablerte, skråstilte produksjonsbrønner. Prøvepumpingen ... -
Undersøkelser av sprengningsskadesonen for vurdering av hydraulisk konduktivitet i bergmassen rundt sprengte tunneler - -
(Master thesis, 2018)I denne masteroppgaven har målet vært å se på oppsprekkingssonen som oppstår i umiddelbar nærhet til tunnelkonturen ved konvensjonelt drevne tunneler og hvilke hydrauliske egenskaper denne sonen har. Bakgrunnen for å se ... -
Unlocking the Potential of Hydrophilic Nanoparticles as Novel Enhanced Oil Recovery Method: An Experimental Investigation
(Doctoral thesis at NTNU;2015:202, Doctoral thesis, 2015)available inorganic nanoparticle candidates that are long time stable at a high temperature and in a high-salinity water/oil environment, easily prepared in a large-scale production with a relatively low cost, and ... -
Unstable Gas Lift at the Heidrun Field
(Master thesis, 2017)Gas lift is used in oil wells to maintain the production by injecting gas into the tubing. The dynamics of the system often causes pressure variations and a fluctuating flow rate. Others have proposed design concepts for ... -
The Unstable Rock Slopes Træstane and Hest in Sørfjorden - Structural Mapping and Hazard assessment for Different Failure Scenarios
(Master thesis, 2018)The geological survey of Norway carries out a systematic mapping of potential unstable rock slopes in Norway. In context of this, a hazard analysis and preliminary consequence assessment has been undertaken at the two ... -
Up- and downgoing borehole wavefield retrieval using single component borehole and reflection data
(Journal article; Peer reviewed, 2018)A standard procedure in processing vertical seismic profile (VSP) data is the separation of up- and downgoing wavefields. We show that these wavefields in boreholes can be retrieved using only single-component data, given ... -
Up-scaling of Polymer Flooding with regards to Geologic Heterogeneities
(Master thesis, 2014)Up-scaling of reservoir model is required to save computational time and costs in the industry. Due to numerical dispersion caused by enlarged grid size and reduced reservoir heterogeneity during up-scaling process, the ... -
Updated in situ rock stresses in Norway based on recent estimations and measurements
(Chapter, 2019)This paper presents the current in situ rock stresses in Norway. Information about the stress state was obtained by estimations from focal mechanism, borehole breakout and drilling-induced fractures, and via overcoring and ... -
Updated Norwegian In Situ Rock Stress Database
(Master thesis, 2018)This thesis presents an updated Norwegian in situ rock stress database and collected in situ rock stress data. In situ rock stresses are the stresses that are present in the ground before any disturbance. Knowledge of in ... -
Upper Jurassic Syn-Riftand Lower CretaceousPost-Rift Exploration Potential
(Master thesis, 2010)The master thesis area is located in the North Viking Graben, in blocks 30/7, 10 and11. The NVG05 3D dataset also covers several UK blocks in quadrant 3. TheNorwegian side has been the main focus since the probability for ... -
Upper paleocene ultramafic igneous rocks offshore mid-Norway: Re-interpretation of the vestbrona formation as a sill complex
(Journal article; Peer reviewed, 2017)Continental breakup between NW Europe and Greenland (~56 Ma) ago was associated with widespread magmatism. Silica undersaturated alkaline porphyritic igneous rocks of a similar age have previously been dredged near the ... -
Upper Paleozoic Carbonate Buildups of the Timan-Pechora Basin, the Sverdrup Basin and the Barents Sea as Potential Reservoirs of the Arctic
(Master thesis, 2014)The main objective of this work was to study the three Arctic Provinces: the Timan-Pechora Basin, the Sverdrup Basin and the Barents Sea, and make a comparison between them with a focus on the Paleozoic sediments and their ... -
Upscaling Elastic Parameters on Complex Geometry Grids
(Master thesis, 2013)Statoil and collaborating partners have recently been able to develop a general upscaling technique that takes into account the complex geology and geometry of rocks. Accordingly, it has now become possible to predict ... -
Upscaling of Finely Layered Media in the Presence of Tilted Transverse Isotropy. Application on Well-Log Data.
(Master thesis, 2014)The primary focus of this project is to analyze the effect of tilt angle on effective medium properties in a tilted transversely isotropic (TTI) medium. A well log has been divided into nine blocks, where eight is vertical ...