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Silje Molnes
University of Stavanger
Materials scienceRheologyNanocelluloseGelatinEnhanced oil recovery
5Publications
4H-index
63Citations
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Publications 5
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#1Silje Molnes (University of Stavanger)H-Index: 4
#2Aleksandr Mamonov (University of Stavanger)H-Index: 3
Last. Kristin Syverud (NTNU: Norwegian University of Science and Technology)H-Index: 25
view all 5 authors...
Cellulose nanocrystals (CNC) were investigated for use in a potential new application, enhanced oil recovery. Core flooding experiments were performed on outcrop sandstone cores using CNC particles dispersed in low salinity brine (CNC–LS). Core flooding experiments performed on fully water-saturated cores confirm that a majority of viscosity-generating CNC particles successfully traverse the cores at temperature conditions ranging from 60 to 120 °C. Oil recovery tests performed on crude oil satu...
3 CitationsSource
#1Silje Molnes (University of Stavanger)H-Index: 4
#2Kristofer Paso (NTNU: Norwegian University of Science and Technology)H-Index: 20
Last. Kristin Syverud (NTNU: Norwegian University of Science and Technology)H-Index: 25
view all 4 authors...
Cellulose nanocrystals (CNC) are currently being investigated as potential additives for enhanced oil recovery (EOR). Presented in this paper is a study investigating the effects of different physical and chemical environments that low concentration CNC dispersions may be subjected to at oil reservoir conditions. Different concentrations of CNC dispersed in de-ionized water and in a 1000 ppm NaCl brine were subjected to variations in pH and temperature, and the results showed that the dispersion...
6 CitationsSource
#1Silje Molnes (University of Stavanger)H-Index: 4
#2Iván D. Piñerez Torrijos (University of Stavanger)H-Index: 4
Last. Kristin Syverud (NTNU: Norwegian University of Science and Technology)H-Index: 25
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Abstract Reservoir production is frequently supported by using flooding fluids, often seawater. The efficiency is affected by various factors, such as the wettability of the reservoir rock and the mobility ratio between reservoir oil and injected fluid phase. These factors again influence sweep efficiency, which is the fraction of the total reservoir oil volume in contact with injected fluid during oil recovery. Addition of nanoparticles can affect the sweep efficiency on a macroscopic level by ...
21 CitationsSource
#1Magnus N. Hattrem (NTNU: Norwegian University of Science and Technology)H-Index: 6
#2Silje Molnes (NTNU: Norwegian University of Science and Technology)H-Index: 4
Last. Kurt Ingar Draget (NTNU: Norwegian University of Science and Technology)H-Index: 30
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Abstract In this study gelled emulsions (10, 20, 40 and 50 wt.% corn oil) and oil-free gels have been prepared using either acid (type A) or alkaline (type B) pre-treated gelatins with varying Bloom values and molecular weights. The gelling kinetics of the gels were monitored by performing small strain oscillatory measurements in combination with a temperature sweep. Increasing setting and melting temperatures as a function of oil content were obtained for the gelled emulsions prepared with type...
13 CitationsSource
#1Magnus N. HattremH-Index: 6
#2Silje MolnesH-Index: 4
Last. Kurt Ingar DragetH-Index: 4
view all 3 authors...
Gelatin is a versatile biopolymer obtained from a partial hydrolysis of collagen. Gelatin is commonly used in formulation of pharmaceuticals and nutraceuticals, encapsulating the active ingredient. For these applications the dissolution profile of the matrix in the gastrointestinal tract (GIT) is of crucial importance. The dissolution of a gelatin matrix in the GIT may be seen as a two-step procedure: gel-sol transition of the gelatin network, followed by diffusion of the peptide strands from th...
4 CitationsSource
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