Blar i NTNU Open på forfatter "Øye, Gisle"
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Interfacial characterisation of dispersed components in produced water
Lesaint, Caterina (Master thesis, 2012)While a number of studies have investigated the processes responsible for the decay of the interfacial tension between crude oil and water with time, there is a great need for an improved understanding of the mechanisms ... -
Interfacial Characterisation of Gas-Liquid Interfaces Related to Gas Flotation in Offshore Produced Water Treatment - Dynamic Adsorption of Heteroatoms
Johnsen, Anja (Master thesis, 2014)Produced water is the largest waste stream produced in the recovery of oil and gas. The processing of produced water occurs in several stages including gas flotation. Gas flotation is separation by gravity and the effectiveness ... -
Introducing Video-Recorded Lab Experiments into Assignments for Surface and Colloid Chemistry Students
Dudek, Marcin; Raghunathan, Karthik; Regli, Samuel K.; Norrman, Jens; Øye, Gisle (Peer reviewed; Journal article, 2022)This communication describes our initial experience modifying traditional (written and calculation-based) assignments in the surface and colloid chemistry course given as a part of the chemical engineering program. The new ... -
Investigation of Adsorption of Surfactants onto Illite and Relations to Enhanced Oil Recovery Methods
Hov, Ingrid Karlsen (Master thesis, 2014)Surfactants have many applications in enhanced oil recovery (EOR) and for each of these applications, care must be taken in selecting the right surfactant. Surfactants tend to be a major portion of the costs associated ... -
Investigation of Adsorption of Surfactants onto Kaolinite and Relations to Enhanced Oil Recovery Methods
Johansen, Trine (Master thesis, 2014)Surfactant flooding is a well-established enhanced oil recovery (EOR) technique, but the economic feasibility of this method is a major concern due to the substantial misplacement and loss of expensive surfactants to the ... -
Lignosulfonate Salt Tolerance and the Effect on Emulsion Stability
Ruwoldt, Jost; Planque, Juliette; Øye, Gisle (Peer reviewed; Journal article, 2020)In this article, we adapted and compared methods to assess lignosulfonates for technical applications. Salt-induced agglomeration and precipitation were studied via mechanical separation and subsequent UV spectrometry. The ... -
Lignosulfonates in Crude Oil Processing: Interactions with Asphaltenes at the Oil/Water Interface and Screening of Potential Applications
Simon, Sebastien Charles; Saadat, Marzieh; Ruwoldt, Jost; Dudek, Marcin; Ellis, Ross J.; Øye, Gisle (Peer reviewed; Journal article, 2020)The goal of this article is to test the potential application of lignosulfonates (LSs) in crude oil production and processing. Three LS samples of varying hydrophobicity and average molecular weight were considered. First, ... -
Macro- and micro scale phenomena in gas flotation for produced water treatment- the effect of fluid composition, temperature and pressure
Piccioli, Martina (Doctoral theses at NTNU;2023:369, Doctoral thesis, 2023)Produced water, the primary waste product of the petroleum industry, contains harmful components that must be treated before discharge to the sea or reinjection. The focus of treatment has traditionally been on dispersed ... -
Microfluidic Interfacial Tension
Selvik, Veslemøy (Master thesis, 2022)En metode for å måle overflatespenning ved hjelp av microfluidics har blitt utviklet. Utviklingen av modellen følger metodikk publisert i litteraturen. En ikke-ionisk surfaktant ble brukt for å manipulere overflatespenning ... -
Microfluidic Investigation of Crude Oil Droplet Coalescence: Effect of Oil/Water Composition and Droplet Aging
Dudek, Marcin; Chicault, Julien; Øye, Gisle (Journal article; Peer reviewed, 2020)The coalescence between crude oil droplets is a major factor influencing the efficiency of most produced water treatment processes. As the droplets grow bigger in size, it is easier to remove them from the continuous water ... -
Microfluidic investigation of enhanced oil recovery: The effect of aqueous floods and network wettability
Saadat, Marzieh; Yang, Junyi; Dudek, Marcin; Øye, Gisle; Tsai, Peichun Amy (Peer reviewed; Journal article, 2021)Rock wettability significantly influences underground oil extraction efficiency during enhanced oil recovery (EOR) processes. We experimentally examine the effect of wettability on oil recovery at pore-scale using ... -
Microfluidic method for determining drop-drop coalescence and contact times in flow
Dudek, Marcin; Fernandes, Diana; Herø, Eirik Helno; Øye, Gisle (Peer reviewed; Journal article, 2020)Coalescence kinetics is an important parameter when describing the stability of dispersions. A number of methods to measure coalescence time are available, however they often take long time and do not allow working with ... -
Microfluidic methods for studying oil recovery by aqueous floods at different wettability, temperature and pressure conditions
Saadat, Marzieh (Doctoral theses at NTNU;2021:78, Doctoral thesis, 2021)To keep up with the energy consumption in the world and recover sustainably from the currently developed oil fields, enhanced oil recovery (EOR) methods have been proven important. To be able to test the processes and new ... -
A Microfluidic Study of Droplet And Particle Retention: A Path from the Rationale to Pore-Scale Experiments
Azizov, Ilgar (Doctoral theses at NTNU;2022:291, Doctoral thesis, 2022)Produced water is the major byproduct of oil and gas production, containing a number of components that can be harmful to the environment, e.g., dispersed particles, dispersed oil, dissolved organics. Re-injection is an ... -
A microfluidic study of oil displacement in porous media at elevated temperature and pressure
Saadat, Marzieh; Vikse, Nora Birgitte; Øye, Gisle; Dudek, Marcin (Peer reviewed; Journal article, 2021)Microfluidics methods offer possibilities for visual observations of oil recovery processes. Good control over test parameters also provides the opportunity to conduct tests that simulate representative reservoir conditions. ... -
Microfluidic Study on the Attachment of Crude Oil Droplets to Gas Bubbles
Dudek, Marcin; Øye, Gisle (Journal article; Peer reviewed, 2018)Gas flotation is often used during treatment of the oilfield produced water. It relies on the generation of gas bubbles and their attachment to oil drops, for example, by forming an oil film on the surface of a gas bubble. ... -
Microfluidic testing of flocculants for produced water treatment: Comparison with other methodologies
Dudek, Marcin; Ullaland, Hanne Skudal; Wehrle, Amandine; Øye, Gisle (Peer reviewed; Journal article, 2020)Flocculants are often added during produced water treatment to improve the crude oil droplet growth and separation from the water phase. Prior to use in the field, their performance is tested in laboratory conditions, ... -
Microfluidic tools for studying coalescence of crude oil droplets in produced water
Dudek, Marcin; Bertheussen, Are; Dumaire, Thomas; Øye, Gisle (Journal article; Peer reviewed, 2018)The major contaminant targeted during the treatment of the oilfield produced water is dispersed oil. The efficiency of most separation processes highly relies on the size of the droplets, which can be increased through ... -
Modeling of surfactant adsorption on coated quartz crystal surfaces during surfactant flooding process
Nourani, Meysam; Tichelkamp, Thomas; Gawel, Bartlomiej; Norrman, Jens; Øye, Gisle (Peer reviewed; Journal article, 2020)The focus of this study was the experimental determination of surfactant adsorption during low salinity water injection combined with surfactant flooding (LSW-SF) into an oil reservoir and development of an analytical model ... -
New Nuclear Magnetic Resonance Approaches on the Evolution of Wax Mobility during Wax Crystallization
Savulescu, George Claudiu; Simon, Sebastien Charles; Sørland, Geir; Øye, Gisle (Peer reviewed; Journal article, 2021)Wax crystallization at low temperature is one of the main problems affecting flow assurance during oil production. Wax inhibitors, such as pour point depressants (PPDs), and crude oil components, such as asphaltenes, are ...