Blar i NTNU Open på tittel
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Rheological characterization of Polyanionic Cellulose solutions with application to drilling fluids and cuttings transport modeling
(Journal article; Peer reviewed, 2018)In petroleum drilling, aqueous Polyanionic Cellulose solutions (PAC) are often used as a drilling fluid model system in experimental laboratory studies to investigate cuttings transport. Cuttings transport refers to the ... -
Rheological Characterization of Water-Based Drilling Fluids - A Comparative analysis of Manual and Automated Measurements
(Master thesis, 2016)Drilling fluids play a vital role in the drilling of exploration and production wells and adequate understanding of the impact of drilling fluid rheology is a pre-requisite, so as to selectively design fluids that could ... -
Rheological Parameters of Norwegian Sensitive Clays, Focusing on the Herschel-Bulkley Model
(Master thesis, 2015)Estimating the run-out distance of a slide is an important part of risk assessment in the planning of infrastruc-ture development in Norway. Numerical models to estimate the run-out distance of sensitive clay slides are ... -
Rheological properties and antioxidant activity of protein gels-like systems made from crayfish concentrate and hydrolysates
(Journal article; Peer reviewed, 2017)Crayfish protein obtained from a renewable, available, and low-cost raw material, may be regarded as an excellent alternative for the development of innovative food products on the basis of its nutritional value and ... -
Rheological properties of Al2O3–CaO–SiO2 slags
(Peer reviewed; Journal article, 2022)The Al2O3–CaO–SiO2 ternary is a basic oxide system relevant for the Pedersen alumina production process and for aluminothermic silicon production with low environmental impact using secondary aluminium and silica raw ... -
Rheological Properties of Gels Formed at the Oil−Water Interface by the Reaction between Tetrameric Acid and Calcium Ion under Flow Conditions and at the Batch Scale
(Journal article; Peer reviewed, 2019)The interfacial reaction between ARN tetrameric acid and Ca2+, which leads to the formation of calcium naphthenate deposits, was studied using a coaxial capillary device fitted to a profile analysis tensiometer. This device ... -
Rheological properties of highly concentrated dense packed layer emulsions (w/o) stabilized by asphaltene
(Journal article; Peer reviewed, 2015)Dense packed layers (DPLs) were sedimented and removed from various asphaltene stabilized w/o emulsion batches, and contained aqueous phase volume fractions (ϕ) between 0.701 and 0.808. These values are close to the ... -
Rheological Properties of Oil in Water Emulsions and Particulate Suspensions
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:176, Doctoral thesis, 2006)This thesis aims at a better understanding of the rheologicalproperties of the important colloids in oil industry, i.e. suspensions, emulsions and waxes. The rheology of suspension system is a complex field influenced by ... -
Rheological properties of super critical CO2 with Al2O3: Material type, size and temperature effect
(Peer reviewed; Journal article, 2019)CO2 liquid is applied as an Enhanced Oil Recovery (EOR) method in oil reservoirs to increase the displacement efficiency. Because of the high temperature and pressure in the reservoirs, the viscosity of the CO2 decreases ... -
Rheological properties of super critical CO2 with CuO: Multi-scale computational modeling
(Journal article; Peer reviewed, 2018)A multi-scale computational methodology based on the density functional theory and molecular dynamics has been used to investigate the rheological properties of super critical CO2 with CuO nano-particle (NP). Density ... -
Rheology and Flow Properties of Water-in-Oil Emulsions - Comparing Measured Flow Rates to Predicted Flow Rates Based on the Rheological Results From the Laboratory
(Master thesis, 2017)Emulsions of oil and water can be formed throughout all processes during the production of petroleum. The properties of these may be very different from those of oil and water alone and knowledge about how different factors ... -
Rheology and printability of matrix: effect of filler from manufactured sand vs. copolymer
(Master thesis, 2023)Denne studien undersøker hvordan ulike mengder fyllstoff og superplastifiseringsmiddel påvirker reologi og printbarhet til sementpasta som er modifisert med fyllstoff. Fire metoder ble brukt for å undersøke effekten av ... -
Rheology and Reactivity of Cementitious Binders with Plasticizers
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:189, Doctoral thesis, 2005)The rheological behaviour of cementitious pastes has been studied by various means. Six different cements have been studied in main parts of the work and all of them have been characterized according to the Rietveld method ... -
Rheology of concrete with crushed aggregate. Influence of volume and composition of matrix, and of sand-stone ratio
(SINTEF AS (ISBN starter med 978-82-14-);, Research report, 2021)The work is a part of the joint industry project "MIKS – Microproportioning of concrete with crushed sand". The overall aim of the work reported here was to provide experimental data as input to the work on the ... -
Rheology of high-capillary number two-phase flow in porous media
(Journal article; Peer reviewed, 2019)Flow of immiscible fluids in porous media at high capillary numbers may be characterized by an effective viscosity. We demonstrate that the effective viscosity is well-described by the Lichtenecker-Rother equation. Depending ... -
Rheology of matrix and SCC with different mineral fillers and admixtures
(COIN Projet report;41-2012, Research report, 2012) -
Rheology of Particle Suspensions: Fresh Concrete, Mortar and Cement Paste with Various Types of Lignosulfonates
(Dr. ingeniøravhandling, 0809-103X; 2003:18, Doctoral thesis, 2003)The major issue concerns how the different lignosulfonate types changes the rheological properties of the cement based material (concrete, mortar and cement paste) as a function of temperature and time. In such terms, it ... -
Rheology of silica-based dispersions and Cross-sectional modeling of settling slurries
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:170, Doctoral thesis, 2010)The stability and flow of suspensions (Rheology) is a complex field of investigation, but is of significant importance in many industrial processes in the oil industry. For colloidal particles, flow rheology becomes ... -
Rheology of skin mucus from yolk-sac salmon fry
(Journal article; Peer reviewed, 2020)As part of our project “Microbial contributions to the Atlantic salmon (Salmo salar) skin mucosal barrier” we have explored techniques to investigate and characterise the rheological properties of the skin mucus of yolk-sac ... -
Rheumatoid Arthritis and Breastfeeding
(Master thesis, 2022)Mål: Undersøke andelen kvinner med revmatoid artritt (RA) som ammer sammenlignet med ikke-ammende ved henholdsvis 6 uker, 6 måneder og 12 måneder etter fødsel, samt å undersøke om demografiske variabler, sykdomskarakteristika ...