Browsing Institutt for geovitenskap og petroleum by Title
Now showing items 1133-1152 of 2529
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How to adapt numerical simulation of wave propagation and ultrasonic laboratory experiments to be comparable — A case study for a complex topographic model
(Journal article; Peer reviewed, 2018)Numerical methods are widely used in seismic exploration to simulate wave propagation; however, the algorithms are based on various assumptions. The accuracy of numerical simulations is of particular interest in the case ... -
How to avoid gas clogging in groundwater heat pump systems: a case study from the Lena terrasse system in Melhus, Norway
(Peer reviewed; Journal article, 2022)Vacuum pressures are unfavorable in water pipes since they pose a risk to degassing dissolved gases from the water and air in-leakage. If the water flow rate through the pipeline is too low, gas bubbles will rise to local ... -
Human Factor Design of a Control Room for Fleet Management using Underwater Drones in the O&G Industry - Use case scenarios for remote operations of UIDs criticizing functional allocation in IS0 11064.
(Master thesis, 2021)Bruk av undervannsdroner for inspeksjonsoperasjoner og -oppgaver på subsea anlegg har vist seg å være viktig for olje og gassindustrien. De er mer effektive og tryggere enn menneskelige dykkere, men er kostbare. I dag er ... -
Human related root causes behind oil well drilling accidents
(Master thesis, 2012)Many accident investigation techniques and other methods used by the petroleum industry today list a set of underlying human related causes and subsequent improvement suggestions. Do these techniques address the root cause ... -
A Hybrid Methodology of Rock Support Design for Poor Ground Conditions in Hard Rock Tunnelling
(Peer reviewed; Journal article, 2023)The design of rock support in hard rock tunnelling is often assisted by the use of empirical engineering rock mass classification systems. This has involved support design in a wide variety of geological- and rock ... -
Hybrid Serving of DOE and RNN-Based Methods to Optimize and Simulate a Copper Flotation Circuit
(Peer reviewed; Journal article, 2022)Prediction of metallurgical responses during the flotation process is extremely vital to increase the process efficiency using a proper modeling approach. In this study, two new variants of the recurrent neural network ... -
Hydrate Prevention by Anti-Agglomerants - Parameters Impacting Flow Performance in Systems Where Hydrates are Present
(Master thesis, 2017)Natural gas hydrates are crystalline compounds that, under the right pressure and temperature conditions, may form in hydrocarbon pipelines, causing transport complications. Several methods of countering this have been ... -
Hydraulic Fracturing for Enhanced Geothermal Systems
(Master thesis, 2015)Finding new energy sources to provide base load electricity supply on a global scale is of increasing importance. Enhanced Geothermal Systems (EGS) has been identified as capable of playing an important role in the future ... -
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. ... -
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 ... -
Hydraulisk jekking ved høytrykksinjeksjon av berg
(Master thesis, 2016)Innlekkasje av vann er en stadig utfordring ved driving av tunnel og bergrom, da konstruksjonene normalt er plassert under grunnvannsspeilet. Vannets opptreden og bevegelse i bergmassen, avhenger av bergmassens hydrauliske ... -
Hydrocarbon generation and migration from Jurassic source rocks in the northern North Sea
(Master thesis, 2012)Hydrocarbon generation and migration modelling from the northern North Sea -
Hydrocarbon migration modelling and exploration risk
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:145, Doctoral thesis, 2004) -
Hydrochemical and biotic control on iron incrustations in groundwater heat pump systems: Case study from a saline, anoxic aquifer in Melhus, Norway
(Peer reviewed; Journal article, 2022)Clogging by incrustations of nine groundwater heat pump (GWHP) systems in Melhus, Norway have been investigated by field and laboratory methods for water quality and incrustation composition. Iron oxides incrust systems ... -
Hydrogeological Analysis of the Tellnes Mine, Norway
(Master thesis, 2017)The main purpose of this MSc thesis work is to connect hydrogeological features of the mine which can be used to develop a Hydrogeological Model of the Mine. The analyses have been mainly focusing on the three subjects; ... -
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 ... -
HyGreGel: A new class of gel systems for water diversion by in-depth reservoir placement
(Doctoral theses at NTNU;2019:336, Doctoral thesis, 2019)High water production is typically a major problem late in the life cycle of a water flooded hydrocarbon reservoir. Reservoir heterogeneity plays a significant role in creating this problem. An example is highly permeable ... -
Hyperloop i Norge - en konseptstudie
(Master thesis, 2019)Hyperloop er et fremtidig nullutslipp høyhastighets transportsystem for passasjerer og gods under utvikling. Prinsippet til hyperloop er at transporten vil foregå i et lufttett rør der lufttrykket er senket til nær vakuum. ... -
Hysteresis of Natural Magnetite Ensembles: Micromagnetics of Silicate‐Hosted Magnetite Inclusions Based on Focused‐Ion‐Beam Nanotomography
(Peer reviewed; Journal article, 2020)Three‐dimensional geometries of silicate‐hosted magnetic inclusions from the Harcus intrusion, South Australia have been determined using focused‐ion‐beam nanotomography (FIB‐nt). By developing an effective workflow, the ...