Browsing Institutt for geovitenskap og petroleum by Title
Now showing items 2352-2371 of 2565
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Third-order elasticity of transversely isotropic field shales
(Peer reviewed; Journal article, 2023)The formations above a producing reservoir can exhibit large mechanical changes, creating a risk of significant subsidence and loss of rock integrity. These changes can be monitored by time-lapse seismic acquisition, which ... -
Thorium (Th) alteration veins in the Northern Trondheimfjord area
(Master thesis, 2017)Th-alteration of red carbonate veins within Ytterøy island in the northern Trondheimfjord area was investigated by focusing on field work, mineral chemistry and geochemistry. The principal aim of this thesis was to evaluate ... -
Three decades of international RILEM activities to combat deleterious Alkali-Silica Reactions (ASR) in concrete
(Journal article; Peer reviewed, 2018)Since 1988, the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM) Technical Committees (TCs) have been seeking to establish universally applicable test methods for ... -
Three Dimensional Elastic Full Waveform Inversion
(Doctoral thesis at NTNU;2015:212, Doctoral thesis, 2015)The full waveform inversion (FWI) method is a technique for estimating subsurface elastic parameters using inverse theory. FWI is formulated as an optimization problem that seeks to minimize the dissimilarities between ... -
Three-Dimensional Seismic Diffraction Modeling
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:304, Doctoral thesis, 2008)Synthetic modeling of seismic wavefields scattered in the subsurface is of growing interest today due to its applicability in various forward and inverse problems of geophysics. It has been extensively used for general ... -
Tidal amplification and along‐strike process variability in a mixed‐energy paralic system prograding onto a low accommodation shelf, Edgeøya, Svalbard
(Peer reviewed; Journal article, 2020)The study describes the depositional development and sediment partitioning in a prograding paralic Triassic succession. The deposits are associated with the advance of large prism‐scale clinoforms across a shallower platform ... -
Tilførsel av nitrogenforbindelser til resipienter som følge av uomsatt sprengstoff ved konvensjonell tunneldriving - Overvåkning av vannkvalitet i forbindelse med samferdselsprosjekter i Bergensområdet
(Master thesis, 2018)Ammoniumnitrat (NH4NO3) i uomsatt sprengstoff vil gi nitrogenholdig tunnelvann, samt føre til nitrogenholdig avrenning fra sprengstein. Økte nitrogenkonsentrasjoner i nærliggende vassdrag kan derfor forventes. I ... -
Tilrettelegging av geologiske og geotekniske data for samfunnets behov: - med grunnvarme i Trondheim kommune som eksempel
(Master thesis, 2012)I denne masteroppgaven ble følgende problemstillinger besvart: Hvordan er den sannsynlige utbredelsen av løsmasseavsetninger og fyllmasser i Trondheim kommune gitt den geologiske og urbane utvikling av kommunen fra slutten ... -
Tiltak for rensing av Killingdalområdet - En beskrivelse av forurensningssituasjonen og forslag til rensning
(Master thesis, 2017)Denne oppgaven beskriver forurensningsproblemene knyttet til Killingdal gruvers tidligere oppredningsanlegg i Trondheim. Dette anlegget produserte svovelkis fra sulfidholdig malm i perioden 1953- 1986. Både under drift og ... -
Time lapse seismic analysis of the Tohoku-Oki 2011 earthquake
(Journal article, 2019)A detailed time lapse seismic analysis of subsurface movements is presented using seismic 2D lines acquired prior to and after the Tohoku-Oki earthquake offshore Japan in 2011. Estimated movements of the seabed from the ... -
Time-dependent closure of a borehole in a viscoplastic rock
(Journal article; Peer reviewed, 2019)The paper describes a model to predict and analyze the time-dependent closure of a borehole drilled in a soft rock subjected to an initial isotropic stress, and the build-up of stress on a rigid casing after contact with ... -
Time-Dependent Deformation of Rock Around a Borehole
(Doctoral theses at NTNU;2019:281, Doctoral thesis, 2019) -
Time-Domain Sensitivity Analysis Comparison of Two CSEM Methods
(Master thesis, 2019)Tidsdomene følsomheter av to forskjellige CSEM konfigurasjoner har blitt undersøkt og sammenlignet. Den første konfigurasjonen kombinerer vertikale kilder og vertikale mottakere, mens den andre ser på horisontale kilder ... -
Time-lapse interferometric imaging using an active source
(Master thesis, 2007)The purpose of time-lapse seismic processing is to relate changes in seismic signals to changes in reservoir parameters. A synthetic time-lapse experiment has been conducted in order to provide a controlled test environment ... -
Time-lapse Processing of 2D Seismic over the Japan Trench
(Master thesis, 2018)The seismic surveys SR97-101 (baseline) and D19 (monitor), acquired over the Japan Trench, were processed using an open-source software (Madagascar) with aims on detecting changes from the Tohoku-Oki earthquake. The surveys ... -
Time-Lapse Refraction Analysis Monitoring Shallow Gas Migration - 2/4-14 Blowout, A North Sea Case Study
(Master thesis, 2018)In January 1989, the drilling of well 2/4-14 situated in the North Sea took a dramatic turn of events when encountering a high-pressure zone. The well kicked and the situation eventually developed into an underground ... -
Time-lapse Seismic Analysis of the Tohoku Earthquake
(Master thesis, 2017)A time lapse seismic comparison of subsurface movements before and after the 2011 Tohoku earthquake is presented in this report. In order to successfully conduct this comparison, an entire processing sequence from raw data ... -
Time-shift analysis in the overburden and reservoir zones from 4D studies across the Norne field
(Master thesis, 2019)4D seismic is a powerful tool, mainly used for monitoring the changes in the reservoir and overburden zones that might occur due to hydrocarbon production or EOR-related changes. The observed changes on 4D seismic can be ... -
A Timelapse Development of the Levant Basin since the Early Pliocene - Documenting the Seismic Geomorphology and Stratigraphy of Depositional Elements
(Master thesis, 2017)Investigation of the seismic geomorphology of the overburden in the southeastern Levant Basin -
Timing and Mechanism of magmatic sill emplacement in the Vøring Basin, Norwegian Sea
(Master thesis, 2017)The Cretaceous sediments of the Vøring Basin, Norwegian Sea, are locally intruded by sever-al igneous sills, which are mainly Doleritic. 12 magmatic sills were interpreted in the on high resolution 3D seismic data, together ...