Institutt for geovitenskap og petroleum
Recent Submissions
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Full-scale pullout tests of rock anchors in a limestone quarry focusing on bond failure at the anchor-grout and grout-rock interfaces
(Peer reviewed; Journal article, 2023)Rock anchors are a common safety measure for stabilising large-scale infrastructure, such as bridge towers, retaining walls, rock slopes and windmills. There are four principal failure modes for rock anchors: (a) tensile ... -
Bayesian rock physics inversion using a localized ensemble-based approach - with an application to the Alvheim field
(Peer reviewed; Journal article, 2023)We describe, implement and show results of a localized ensemble-based approach for seismic AVO inversion with uncertainty quantification. Ensembles are simulated from continuous prior probability distributions for fluid ... -
Inclusion of advection in fractures in the line source equation for analysis of thermal response tests
(Peer reviewed; Journal article, 2024)Proper design of larger ground source heat pump installations, and borehole thermal energy storages (BTES) requires determination of on-site thermal properties of the ground by performing a thermal response test (TRT). The ... -
Design of a test facility for oil-water separation and water treatment
(Master thesis, 2023)Subsea separasjon er en ettertraktet teknologi for olje- og gassindustrien, men det er nødvendig med videre forskning for å gjøre den konkurransedyktig. To testanlegg for subsea separasjon har blitt bygget ved NTNU som en ... -
Mining Ground Deformation Estimation Based on Pre-Processed InSAR Open Data—A Norwegian Case Study
(Journal article; Peer reviewed, 2023)Sublevel caving mining causes surface deformation in three distinct zones parallel to the extracted deposit. Most of the published research is focused on the extent of the caved and fracture zones. The extent of the largest, ... -
Subsea CO2 Injection with Direct Offshore Offloading of CO2 – Modelling and Simulation Case Studies
(Master thesis, 2023)Abstract In the coming decades, burning fossil fuels will still be necessary, therefore Carbon Capturing and Storage (CCS) can aid in reducing greenhouse gas emissions. There are multiple technologies that can capture CO2 ... -
Superstructure optimization of subsea processing layouts
(Journal article; Peer reviewed, 2023)As the oil and gas industry expands the use of subsea processing, the complexity of subsea layouts increases, making manual design processes cumbersome and suboptimal. Here we propose a method to support subsea field design ... -
Assessment of the impact of acquisition configuration of CO2 detection inspired by Top Layer at Sleipner
(Master thesis, 2023)Denne oppgaven undersøker rollen til seismisk innsamlingsgeometri i deteksjonen av karbondioksid (CO2) lag i ulike scenarier. Karbonfangst- og lagringsteknologier (CCS) undersøkes på grunn av det presserende behovet for å ... -
Residence Time Distribution Measurements and Modeling in an Industrial-Scale Siemens Flotation Cell
(Peer reviewed; Journal article, 2023)This short communication presents residence time distribution (RTD) measurements and modeling in a 16 m3 Siemens flotation cell, as the first RTD characterization in an industrial-scale pneumatic cell. The Siemens cell was ... -
Rock cut slope excavated for Settling basins of Seti Khola Hydropower Project
(Chapter, 2023)Stability of a cut-slope at the headworks area of the hydropower projects is very important for smooth operation of hydropower plant. Underestimation during construction period may bring a catastrophic consequence. This ... -
Assessment on the in-situ rock stress condition along an unlined pressure tunnel/shaft of a Norwegian Hydropower Project using numerical modeling
(Chapter, 2023)Confinement is a pre-requisite in the “Norwegian state-of-art design principles” for unlined pressure tunnels/shafts where the minimum principal stress must exceed internal water pressure. Reliable estimation of in-situ ... -
Stability issues associated with the construction of underground caverns of Super Dordi Hydropower Project, Nepal
(Chapter, 2023)The rock mass is heterogeneous and makes underground space construction a challenge to engineers. The rock formation, mineralogical composition, degree of schistosity, and weathering, are the major factors that determine ... -
A Geochemical and Petrological Analysis of the Klemetsaunet Rhyodacite, Central Norwegian Caledonides; Unraveling the Rock's Origin, Mineral Alteration, and Deformation Patterns.
(Master thesis, 2023)Klemetsaunet ryodacitten er en av tre felsiske intrusjoner som ble dannet i oseansk skorpe for om lag 481 ± 5 millioner år siden. Studieområdet ligger i de nordlige delene av Bymarka-ofiolitten i Trondheim, Norge, og er ... -
Integrated Spatiotemporal Analysis of Vegetation Condition in a Complex Post-Mining Area: Lignite Mine Case Study
(Peer reviewed; Journal article, 2023)The motivation for this study arises from the need to monitor the condition of a rehabilitated post-mining areas even decades after the end of the recovery phase. This can be facilitated with satellite derived spectral ... -
A simplified pore-scale model for slow drainage including film-flow effects
(Peer reviewed; Journal article, 2023)Liquid-filled corners and capillary bridges can establish networks connecting seemingly isolated clusters during drainage in porous media. Coupled with drainage through the bulk of pores and throats, the flow through these ... -
Transmissivity averaging in fracture flow on self-affine linear profiles: arithmetic, harmonic, and beyond
(Journal article; Peer reviewed, 2023) -
Effects of Mechanical Stirring and Ultrasound Treatment on the Separation of Graphite Electrode Materials from Copper Foils of Spent LIBs: A Comparative Study
(Peer reviewed; Journal article, 2023)In this paper, mechanical stirring and ultrasonic treatment are used to separate graphite electrode materials from copper foils in recycling spent lithium-ion batteries (LIBs). Firstly, the effects of ultrasonic power ... -
Frictional fluid instabilities shaped by viscous forces
(Peer reviewed; Journal article, 2023)Multiphase flows involving granular materials are complex and prone to pattern formation caused by competing mechanical and hydrodynamic interactions. Here we study the interplay between granular bulldozing and the stabilising ... -
Geochemical & Mineralogical assessment of the Anundsjøen, Larvik Potential Nepheline Syenite deposit for use in glass and ceramics
(Master thesis, 2023)Sammendrag Nefelinsyenitt er et industrimineral som brukes innen glass- og kjeramikk industrien, ettersom det tillater lavere og mer stabile smeltetemperaturer. Avhengig av dens geokjemiske sammensetning, kan den ha en ... -
Hydraulic Transient Impact on Surrounding Rock Mass of Unlined Pressure Tunnels
(Peer reviewed; Journal article, 2023)The frequent pressure pulsations due to hydraulic transients in hydropower plants induce cyclic loading on the rock mass that may contribute to increased instances of block falls and increased risk of tunnel collapse over ...
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