Institutt for geovitenskap og petroleum
Recent Submissions
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Bæreevnen til utvidbare friksjonsbolter ved varierende installasjonstrykk, borehullruhet og borehulldiameter. Basert på uttrekkstester fra betongblokk og utviding av bolter i friluft
(Master thesis, 2022)18 uttrekkstester ble utført på utvidbare friksjonsbolter installert i en betongblokk. Boltene er av Swellex-typen som installeres med vanntrykk, og ikke behøver mørtel eller polyester. Ved uttrekkstestene ble deformasjonen ... -
Mineralogical assessment of rocks of hydropower tunnels subjected to swelling
(Master thesis, 2022)Vannkraft tunneler lokalisert i svakt og svellende bergmasse er utsatt for stabilitets problemer og kollaps. Samarbeidspartneren Statkraft ønsker å støtte videre forskning som skal identifisere og vurdere svellende mineraler ... -
Geoscience for CO2 storage: an introduction to the thematic collection
(Peer reviewed; Journal article, 2022)This is a summary of a collection of 12 research papers in a thematic set. It is clear that in the transition towards a carbon-neutral future, CO2 storage will be a critical technology for decarbonization of society, ... -
Bergmekanisk undersøkelse av spenningsrelaterte problem i Drammenstunnelen
(Master thesis, 2022)I forbindelse med utbyggingen av jernbanetunnelen Drammenstunnelen fra Drammen stasjon til Skoger, møtte drivende entreprenør Veidekke på flere spenningsrelaterte problemer. Lav overdekning og høye horisontalspenninger ... -
Numerical modelling of crack initiation and propagation in rocks using the XFEM
(Master thesis, 2022)Denne masteroppgaven fokuserer på numerisk modellering av sprekkevekst i et bergartslignende materiale under enaksielt trykk ved å bruke den utvidete endelige element metoden (XFEM). Todimensjonale prøvestykker som inneholder ... -
Digitalization and Automation of Plug and Abandonment Operations
(Master thesis, 2022)In this thesis, the principles to design and implement software application to fully automate the Plug and Abandonment operations is discussed. The application is planned to be developed to enter the data manually from new ... -
Diagenesis and reservoir quality preserving mechanism in the deeply buried Lower to Middle Jurassic Formation in the Halten Terrace, offshore Mid-Norway.
(Master thesis, 2022)Heterolittiske sandsteinsreservoar fra Haltenterrassen har blitt undersøkt for å se på innvirkningen av diagenese på reservoarkvaliteten. For dette studiet har det blitt brukt 27 polerte tynnslip med blå epoxy farging fra ... -
Well-Log Database and Automation of Well Log Depth Matching by Using Analytical Methods and Deep Learning
(Doctoral theses at NTNU;2022:104, Doctoral thesis, 2022)Well log data formats remain rigid, outdated, and difficult to understand and to work with. The amount of available documentation is limited, thus much of the valuable information held in these data formats is left behind ... -
The graphite occurrences of Northern Norway, a review of geology, geophysics, and resources
(Peer reviewed; Journal article, 2020)There are three provinces in Northern Norway in which occurrences of graphite are abundant; the Island of Senja, the Vesterålen archipelago, and the Holandsfjorden area. From these provinces, we report graphite resources ... -
3D interpretation of helicopter-borne frequency-domain electromagnetic (HEM) data from Ramså Basin and adjacent areas at Andøya, Norway
(Peer reviewed; Journal article, 2020)The Ramså Basin is situated on the strandflat on the northeastern side of Andøya between Ramså and Skarstein. It is the only known Mesozoic sedimentary basin onshore Norway and therefore represents an easily accessible ... -
Experimental investigation of stability of silica nanoparticles at reservoir conditions for enhanced oil-recovery applications
(Peer reviewed; Journal article, 2020)To be effective enhanced oil-recovery (EOR) agents, nanoparticles must be stable and be transported through a reservoir. However, the stability of a nanoparticle suspension at reservoir salinity and temperature is still a ... -
Permo–Triassic sedimentary fills and tectonic phases off Mid Norway: seismic investigation of the Trøndelag Platform
(Peer reviewed; Journal article, 2020)Seismic interpretation (2D and new 3D surveys) has been used to investigate sedimentary fills and timing of tectonic activity offshore Mid Norway. This study was focused on upper Permian and Lower Triassic sedimentary basin ... -
Dynamic wettability alteration for combined low salinity brine injection and surfactant flooding on silica surface
(Peer reviewed; Journal article, 2020)Experimental results of dynamic contact angle measurements of low salinity brine and combined low salinity water and surfactant flooding (LSW–SF) on silica surface are presented in this study. Dynamic contact angle experiments ... -
Experimental investigation of the effect of adding nanoparticles to polymer flooding in water-wet micromodels
(Peer reviewed; Journal article, 2020)Recently, the combination of conventional chemical methods for enhanced oil recovery (EOR) and nanotechnology has received lots of attention. This experimental study explores the dynamic changes in the oil configuration ... -
A paradigm for the evolution of human features: Apes trapped on barren volcanic islands
(Peer reviewed; Journal article, 2020)The aquatic ape hypothesis for human evolution can account for all the traits that distinguish humans from chimpanzees. This scientific paradigm has been considered impossible. It would require that human ancestors maintained ... -
Enhancing oil recovery with hydrophilic polymer-coated silica nanoparticles.
(Peer reviewed; Journal article, 2020)Nanoparticles (NPs) have been proposed for enhanced oil recovery (EOR). The research has demonstrated marvelous effort to realize the mechanisms of nanoparticles EOR. Nevertheless, gaps still exist in terms of understanding ... -
From orogeny to rifting: insights from the Norwegian ‘reactivation phase’
(Peer reviewed; Journal article, 2020)Based on observations from the Mid-Norwegian extensional system, we describe how, when and where the post-Caledonian continental crust evolved from a context of orogenic disintegration to one of continental rifting. We ... -
Anatomy of a mega-rock slide at Forkastningsfjellet, Spitsbergen and its implications for landslide hazard and risk considerations
(Peer reviewed; Journal article, 2019)Rock slope failures are a potential source of danger in polar regions. A causal connection between slope failures and climate-related glacial and deglacial processes has been inferred for the growing number of documented ... -
Estimation of in situ anisotropy parameters from two perpendicular walkaway VSP lines in South Pars field
(Peer reviewed; Journal article, 2019)Vertical phase slowness and polarization angle are the in situ parameters of P-wave propagation that can be derived from walkaway vertical seismic profiling (VSP) data. To use these data for estimating anisotropy parameters, ... -
Non-orthogonal beam coordinate system wave propagation and reverse time migration
(Peer reviewed; Journal article, 2019)Grid size has a significant influence on the computation efficiency and accuracy of finite-difference seismic modeling and can change the workload of reverse time migration (RTM) remarkably. This paper proposes a non-orthogonal ...
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