Institutt for geovitenskap og petroleum: Recent submissions
Now showing items 21-40 of 2529
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Detrital zircons of the vast Triassic Snadd and De Geerdalen formations, Barents Shelf, reveal temporal changes in sediment source
(Peer reviewed; Journal article, 2023)Studies of detrital-zircon age distributions from Triassic sedimentary rock successions on the Arctic Barents Shelf have resulted in different provenance interpretations. Here, we provide new U–Pb/Hf detrital-zircon data ... -
Experimental study of seismic dispersion: Influence of clay mineral content
(Journal article; Peer reviewed, 2023)We conducted an extensive study on the elastic properties of Opalinus Clay and the overlying and underlying rock formations, which range in the overall clay mineral content from nearly 0 wt.% to 60 wt.%. Our laboratory ... -
Diving-wave time-lapse delay for CO2 thin layer detection
(Peer reviewed; Journal article, 2024)We have derived an analytical approximate expression to estimate the delay in diving seismic waves due to thin layers of CO2. The expression is valid for high frequencies and can be used to estimate the delay in diving ... -
Shape of a frictional fluid finger
(Peer reviewed; Journal article, 2023)Frictional fluid dynamics describes the displacement patterns that arise when a confined mixture of liquid and grains are displaced by an immiscible fluid under pressures that are too small to cause drainage into single ... -
Marine minerals' role in future holistic mineral resource management
(Journal article; Peer reviewed, 2022) -
Hydraulic properties of the Excavation damage zone
(Master thesis, 2023)Denne avhandlingen undersøker de hydrauliske egenskapene i sprengningsskadesonen. Arbeidet inkluderer numeriske modelleringer av et nytt tunnelkonsept med tanke på vann og frostsikring som utføres ved Hestnes jernbanetunnel. ... -
Bioreagents in froth flotation and flocculation of copper, iron and cerium oxides
(Doctoral theses at NTNU;2024:29, Doctoral thesis, 2024) -
A case study on time-dependent bedding plane failure
(Journal article; Peer reviewed, 2023)Time-delayed wellbore failures are often observed in shale formation. In some cases, cavings indicating bedding plane failure are observed a few days after initial drill-out with a gradual increase, eventually leading to ... -
A Full Laboratory Study on the Physical and Mechanical Properties of a Bismuth Plug
(Chapter, 2023)Well plugging and abandonment can be very expensive, time consuming and problematic. This is because it is the least considered process during a well's life cycle. Setting a plug downhole in an efficient and successful ... -
Sjeldne jordarter i nefelinsyenittpegmatitter i Vevja, Tvedalen
(Master thesis, 2023)Kritiske råmaterialer som blant annet sjeldne jordarter og niob er viktige for moderne teknologi og det grønne skiftet. Nefelinsyenittpegmatitter inneholder disse elementene. Tidligere er det gjennomført arbeid (Øksnes ... -
Evaluation and stability assessment of road cut slope at Bhalupahad of Syangja District along Siddhartha Highway; Western Nepal
(Journal article, 2023)A road section at Bhalupahad, Syangja of Siddhartha highway was investigated to characterize the rock mass, identify the potential slope failure modes, and determine the stability condition and the major governing factors. ... -
Quartz Fine Particle Processing: Hydrophobic Aggregation by Shear Flocculation
(Peer reviewed; Journal article, 2023)This study investigates the hydrophobic aggregation of fine quartz particles through shear flocculation induced by dodecylamine in aqueous solutions. The effect of stirring speed, collector concentration, flocculation time, ... -
Prosjektering av bergskjæringer - Anvendelse av gjeldende regelverk og visualisering ved bruk av 3D-modell fra fotogrammetri
(Master thesis, 2023)Utforming av bergskjæringer langs offentlig vei skal følge krav i Statens vegvesens håndbok N200 Vegbygging. Håndbok N200 har hjemmel i vegloven, og deler av håndboken er bygd opp på grunnlag av den europeiske standarden ... -
Hydrogeologiske forhold på Svelvik CO2 feltlaboratorium og ved Svelvikryggen - Med fokus på grunnvannsstrømning i RS2, tidevannsforhold og vannkjemi
(Master thesis, 2023)Svelvikryggen er en glasifluvial avsetning som ligger i Drammensfjorden ved Svelvik. Over den åpne og den lukkede akviferen på Svelvikryggen befinner det seg i dag et CO2 feltlaboratorium som SINTEF eier. Der forskes det ... -
Geomechanics and Rock Physics of Anisotropic Overburden Shales
(Doctoral theses at NTNU;2023:326, Doctoral thesis, 2023)Shales, with their diverse composition and complex properties, present an interesting research subject and a challenging material to work with. As they constitute a significant portion of the overburden in most currently ... -
The northern Vøring outer ridges complex: new structural and sedimentary constraints
(Master thesis, 2023)Denne masteroppgaven fokuserer på å finne nye strukturelle og sedimentære avgrensninger for geometrien til Nykhøyden som ligger i den ytre delen av Vøringbassenget; en del av den midtnorske riftmarginen. Gjennom dette ... -
Anisotropic Poroelastic Modelling of Depletion-Induced Pore Pressure Changes in Valhall Overburden
(Peer reviewed; Journal article, 2023)Anisotropic Poroelastic Modelling of Depletion-Induced Pore Pressure Changes in Valhall Overburden -
Capillary washboarding during slow drainage of a frictional fluid
(Peer reviewed; Journal article, 2023)Numerous natural and industrial processes involve the mixed displacement of liquids, gases and granular materials through confining structures. However, understanding such three-phase flows remains a formidable challenge, ... -
ETP SMR Strategic Research and Innovation Agenda (SRIA)
(Research report, 2023)Officially recognized by the European Commission in 2008, ETP SMR successfully combines interdisciplinarity and deep commitment from its members. Its significance is underlined by the increasing political and strategic ... -
Optimizing the Rate Balance Between Multiple CO2 Injectors for the Aurora Storage Site
(Master thesis, 2023)Den globale utfordringen med å redusere klimagassutslipp har nødvendiggjort utviklingen av effektive strategier for fangst og lagring av karbon (CCS). Denne oppgaven fokuserer på optimalisering av CO2-injeksjonsoperasjonen ...