Blar i NTNU Open på forfatter "Torsæter, Ole"
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A study of water chemistry extends the benefits of using silica-based nanoparticles on enhanced oil recovery.
Hendraningrat, Luky; Torsæter, Ole (Journal article; Peer reviewed, 2015)Chemistry of the injected water has been investigated as an important parameter to improve/enhance oil recovery (IOR/EOR). Numerous extensive experiments have observed that water chemistry, such as ionic composition and ... -
An Experimental and Numerical Study of Polymer Injection in Layered Synthetic Porous Media
Moe, Eline Skurtveit (Master thesis, 2015)In this Master thesis there was conducted polymer flooding of two-layered synthetic cores, where the two layers had different permeabilities, representing a stratified reservoir. The main purpose of this thesis was to ... -
An Experimental Investigation of Enhanced Oil Recovery Mechanisms in Nanofluid Injection Process
Li, Shidong (Doctoral thesis at NTNU;2016:37, Doctoral thesis, 2016)Nanotechnology is recently proposed to increase oil recovery in some literature. Nanoparticles, as part of nanotechnology, are chosen as novel enhanced oil recovery (EOR) agent. Compared with other chemical EOR agents, ... -
An Experimental Study of the Use of Silica and CNC Nanofluids for EOR by Spontaneous Imbibition
Mo, Ida Kristin (Master thesis, 2017)Approximately half of the oil is still left in the reservoirs after primary and secondary oil recovery today. To increase the oil recovery from the reservoirs it is necessary to apply Enhanced Oil Recovery (EOR) Methods. ... -
Application of Low-Salinity Waterflooding in Carbonate Cores: A Geochemical Modeling Study
Jahanbani Ghahfarokhi, Ashkan; Egbe, Daniel Isong Otu; Nait Amar, Menad; Torsæter, Ole (Peer reviewed; Journal article, 2020)Waterflooding is the most widely applied improved oil recovery technique. Recently, there has been growing interest in the chemistry and ionic composition of the injected water. Low-salinity waterflooding (LSWF) is a ... -
Application of nanoparticles for oil recovery.
Torsæter, Ole (Peer reviewed; Journal article, 2021)Due to their large surface-area-to-volume ratio and enhanced chemical reactivity, nanoparticles have attracted interest among researchers in the upstream petroleum industry for oil recovery applications. Nanoparticles have ... -
Atomistic insights into the nanofluid transport through an ultra-confined capillary
Wang, Xiao; Zhang, Zhiliang; Torsæter, Ole; He, Jianying (Journal article; Peer reviewed, 2018)The nanofluids or nanoparticles (NPs) transport in confined channel is of great importance for many biological and industrial processes. In this study, molecular dynamics simulation has been employed to investigate spontaneous ... -
CO2 Enhanced Oil Recovery in Strong Water-Drive Reservoirs
Forest, Thibaut (Master thesis, 2012)The growing demand for energy has prompted oil companies to increase the production while paying more and more attention to the CO_2 footprint of their activities. To fulfill these requirements CO_2 storage and enhanced ... -
A core flood and microfluidics investigation of nanocellulose as a chemical additive to water flooding for EOR
Aadland, Reidun Cecilie Grønfur; Akarri, Salem Saeed Fadhl; Heggset, Ellinor Bævre; Syverud, Kristin; Torsæter, Ole (Peer reviewed; Journal article, 2020)Cellulose nanocrystals (CNCs) and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (T-CNFs) were tested as enhanced oil recovery (EOR) agents through core floods and microfluidic experiments. ... -
Description of Free Energy for Immiscible Two‐Fluid Flow in Porous Media by Integral Geometry and Thermodynamics
Khanamiri, Hamid Hosseinzade; Berg, Carl Fredrik; Slotte, Per Arne; Schlüter, Steffen; Torsæter, Ole (Journal article; Peer reviewed, 2018)In integral geometry, intrinsic volumes are a set of geometrical variables to characterize spatial structures, for example, distribution of fluids in two‐fluid flow in porous media. McClure et al. (2018, https://doi.org/ ... -
Effect of convective mixing process on storage of CO2 in saline aquifers with layered permeability.
Taheri, Amir; Torsæter, Ole; Lindeberg, Erik Gøsta Brun; Hadia, Nanji; Wessel-Berg, Dag (Journal article, 2021)Convective mixing of free-phase CO2 and brine in saline aquifers is an established technique to accelerate the CO2 dissolution process. Correct estimation of the convection onset time and rate of CO2 dissolution into brine ... -
Effect of Geometry on Pore-Scale Simulation of Single-Phase Fluid Flow
Nyland, Mads Skau (Master thesis, 2018)Accurate estimation of physical rock properties is a crucial step in the process of designing a reservoir model for development reasons and to optimize hydrocarbon production. Absolute permeability is one of those properties. ... -
Effect of Water Quality on Wettability Alteration in Carbonates
Azizov, Ilgar (Master thesis, 2019)The topic of the master's thesis is the wettability alteration in carbonates by Low Salinity enhanced oil recovery (EOR). Wettability alteration towards more water-wet upon reduction of salinity and/or manipulation of ionic ... -
The effect of wettability and flow rate on oil displacement using polymer-coated silica nanoparticles: A microfluidic study
Omran, Mohamed Ahmed Fathy Abdelshafy; Akarri, Salem Saeed Fadhl; Torsæter, Ole (Peer reviewed; Journal article, 2020)Polymer-coated silica nanoparticles (PSiNPs) have been experimentally investigated in core- and micro-scale studies for enhanced oil recovery (EOR). Wettability and flow rate have a considerable effect on oil displacement ... -
Enhanced Oil Recovery by Low Salinity Surfactant: Effect of Ions on Core and Pore Scales
Khanamiri, Hamid Hosseinzade (Doctoral theses at NTNU;2016:211, Doctoral thesis, 2016)Enhanced oil recovery (EOR) by surfactants is a well-established method in the petroleum industry. In a surfactant flooding, oil is mobilized and recovered by reduction of the interfacial tension (IFT) between oil and water ... -
Evaluation and Comparison of Various Miscible CO2-EOR Methods
Westervold, Hendrik Andre (Master thesis, 2014)Enhanced oil recovery (EOR) by miscible carbon dioxide (CO2) injection is one of the most interesting EOR methods, both because of high oil recovery and the possibility of mitigating CO2 emissions by storing CO2 in the ... -
Evaluation of Fishbone Lateral Stimulation: A Simulation Study
Priskila, Laura Maria (Master thesis, 2014)Fishbone stimulation was simulated using ECLIPSE 100 in autumn semester project, 2013. I used LGR (Local Grid Refinement) Options in ECLIPSE to emulate fishbone needles extending to reservoir for a single vertical well. ... -
Evaluation of Microbial Enhanced Oil Recovery using the MRST Simulator
Akindipe, Dayo (Master thesis, 2016)Microbial enhanced oil recovery (MEOR), as a field of study, exploits the benefits of microbes for the purpose of improving microscopic as well as macroscopic displacement of oil by water. This work has been carried out ... -
Experimental Investigation of Nanoparticle Adsorption and Pore Blockage in Intermediate Wet Berea Sandstone
Damgaard, Tore Sebastian (Master thesis, 2017)The global demand of energy is increasing with the growing population, and an increased consumption of available resources is therefore required. Even though there has been more focus on renewable energy over the last ... -
Experimental Investigation of Polymer-Coated Silica Nanoparticles for Enhanced Oil Recovery.
Bila, Alberto Luis; Stensen, Jan Åge; Torsæter, Ole (Journal article; Peer reviewed, 2019)Recently, polymer-coated nanoparticles were proposed for enhanced oil recovery (EOR) due to their improved properties such as solubility, stability, stabilization of emulsions and low particle retention on the rock surface. ...