Blar i Department of Energy and Petroleum Engineering (TN-IEP) på tittel
Viser treff 543-562 av 575
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Tuning the interfacial sites between copper and metal oxides (Zn, Zr, In) for CO2 hydrogenation to methanol
(Peer reviewed; Journal article, 2021)The influence of different metal oxides (ZnO, ZrO2, In2O3) in CO2 hydrogenation to methanol over Cu-based catalysts was studied. The catalysts were characterized using x-ray diffraction (XRD), thermal gravimetric analysis ... -
Twisted Elliptic Cylinder of Uncertainty: An Alternative Method to Calculate the Anti-Collision Safety Factor
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-12-04)A precise anti-collision analysis is becoming even more important in the past few years, with the increasing amount of wells being drilled in highly congested fields. The costs associated with the production fields have ... -
Two Birds with One Stone: Concurrent Ligand Removal and Carbon Encapsulation Decipher Thickness-Dependent Catalytic Activity
(Peer reviewed; Journal article, 2022)A carbon shell encapsulating a transition metal-based core has emerged as an intriguing type of catalyst structure, but the effect of the shell thickness on the catalytic properties of the buried components is not well ... -
Uncertainty analysis of Supervised machine learning predictions applied to Lithology classification
(Master thesis, 2022)Geosteering is the technique of guiding directional drilling to remain within the pay zone. This process demands a thorough survey of the lithological properties of the surrounding geo- logical strata. Since logging while ... -
Underground Storage of Natural Gas in Aquifers by Using CO2 as Cushion Gas
(Master thesis, 2022)To satisfy energy demands, the natural gas supply must be smoothed. This aim can be accomplished by means of underground natural gas storage. They provide large-scale seasonal storage of natural gas. To maintain reservoir ... -
Understanding Leakage Rates in Permanently Abandoned Wells by Studying Natural Hydrocarbon Seepages
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Permanent plug and abandonment (PP&A) of wells is steadily becoming more important on the Norwegian Continental Shelf (NCS), as a large number of fields are approaching end of their productive life. Combining operational, ... -
Undersøking av egenskapene til Polyanionisk Cellulose blandet med vann som sirkulerer gjennom en strømningssløyfe
(Bachelor thesis, 2021)Denne oppgaven er strukturert i to hoveddeler. Den første delen omhandler noen fundamentale roller borevæske har under boring. Det er i hovedsak fokusert på sirkulasjonssystemet i en boreoperasjon, hovedegenskapene til ... -
Unravelling key controls on the rift climax to post-rift fill of marine rift basins: insights from 3D seismic analysis of the Lower Cretaceous of the Hammerfest Basin, SW Barents Sea
(Journal article, 2017-10)In this study, we investigate key factors controlling the rift climax to post-rift marine basin fill. We use two- and three-dimensional seismic data in combination with sedimentological core descriptions from the Hammerfest ... -
Use of a transient model for studying kick migration velocities and build-up pressures in a closed well
(Chapter, 2021)The objective of the paper is to show that using pressure build-up curves for estimating kick migration velocities can be unreliable. This will be demonstrated by using a transient flow model where different flow patterns ... -
Use of the Quemada Model for Modelling Viscous Behaviour of Drilling Fluids.
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)Drilling fluids are essential for drilling operations and serve many important functions. To maintain control of the wellbore, while ensuring sufficient cutting transportation, good understanding of the rheological properties ... -
Using Artificial Neural Networks to Gather Intelligence on a Fully Operational Heat Pump System in an Existing Building Cluster
(Peer reviewed; Journal article, 2023)The use of heat pumps for heating and cooling of buildings is increasing, offering an efficient and eco-friendly thermal energy supply. However, their complexity and system integration require attention to detail, and minor ... -
Using ceramic discs to evaluate fluid loss and formation damage
(Bachelor thesis, 2021)To prevent kicks and possible blowout of the well, the pressure from the drilling fluid must be kept above the pore pressure of the formation. This differential pressure forces the fluid into the porous formation, which ... -
Utvikling av ny tetthets - hastighet og kompresjon - skjærbølgehastighetsmodell basert på NCS-feltdata: Empirisk og kunstig neuronettverksbasert
(Bachelor thesis, 2021)Denne oppgaven presenterer utviklingen av nye tetthet- og hastighets- regresjonsmodeller (enkel- og multivariate-baserte) og artificial neural network (ANN) basert modellering ved bruk av data hentet fra Barentshavet, ... -
Utvikling av ny tetthets - hastighet og kompresjon - skjærbølgehastighetsmodell basert på NCS-feltdata: Empirisk og kunstig neuronettverksbasert
(Bachelor thesis, 2021)Denne oppgaven presenterer utviklingen av nye tetthet- og hastighets- regresjonsmodeller (enkel- og multivariate-baserte) og artificial neural network (ANN) basert modellering ved bruk av data hentet fra Barentshavet, ... -
Validation study of water weakening research from outcrop chalks performed on Eldfisk reservoir cores
(Peer reviewed; Journal article, 2020-11)Seawater injection for Enhanced Oil Recovery (EOR) purposes can increase the hydrocarbon recovery factor in carbonate reservoirs but are also responsible for weakening their mechanical strength. This study investigates the ... -
Validation study of water weakening research from outcrop chalks performed on Eldfisk reservoir cores
(Peer reviewed; Journal article, 2020-03)Seawater injection for Enhanced Oil Recovery (EOR) purposes can increase the hydrocarbon recovery factor in carbonate reservoirs but are also responsible for weakening their mechanical strength. This study investigates the ... -
Value of Digitizing Well Interventions and its impact on business and working processes
(Master thesis, 2021)The oil and gas industry continuously enters a phase with new challenges and new ways of thinking, the rise of a digitalization revolution can be the key answer to creating new opportunities to overcome the industry's ... -
Value of Information Analysis in CO2 Sequestration Projects
(Master thesis, 2021)As one of the main risks related to CO2 storage is leakage, it is important to consider the impact of the reservoir uncertainties on the long-term CO2 migration and leakage which affecting the decisions in CO2 storage ... -
Valuing abandonment decisions: Maximizing an oil and gas fields Net Present Value
(Master thesis, 2021)The oil and gas sector in the North Sea is mature and consists primarily of brownfields that have passed their peak production or are close to the end of their lives. Many of these fields will have to be abandoned in the ... -
Vibration-assisted annular fluid displacement for rig-less well abandonment operations
(Peer reviewed; Journal article, 2022-06)Through-tubing abandonment is the operation where the production tubing is cut or punched and cemented inside the production casing. This can establish a full cross-sectional barrier or isolation in wells where the cement ...