• A risk-based study of safety barriers in multicultural work environments 

  Sael, Javeed (Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-06-14)

  11 of 13 studies show that foreign employees are about 1,6 to 13 times more often injured in occupational accidents compared to Norwegian employees. Even though, both national and non-national employees are involved in ...

• A Novel Approach to Qualifying Bismuth as a Barrier Material 

  Knutsen, Trine (Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-12)

  The barrier material conventionally used for permanent P&A is cement. Since two barriers are a requirement to properly isolate potentially flowing formations, the reliability of the barriers could be enhanced by introducing ...

• Interaction of silica nanoparticles with chalk and sandstone minerals: Adsorption, fluid/rock interactions in the absence and presence of hydrocarbons 

  Abhishek, Rockey (PhD thesis UiS;452, Doctoral thesis, 2019-04)

  Conventional oil production from petroleum reservoirs generally leaves more that 50% of the original oil in place unrecovered. This residual oil is the target of various enhanced oil recovery (EOR) techniques that involve ...

• Synthesis, characterization, and activity of bimetallic Ni-Fe hydrotalcite-derived catalysts in dry reforming of methane 

  Huynh, Huong Lan (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06-15)

  The extensive amount of carbon dioxide (CO2) emitted into atmosphere is arguably considered to be the main reason for global climate change due to the greenhouse effect. For decades, considerable efforts have been devoted ...

• Optimal Core Restoration and the Effect of Initial Wetting on Oil Recovery in Chalk 

  Yang, Hae Sol (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-12-15)

  The initial wetting condition of the reservoir rock is fundamental in the advanced oil recovery methods by waterflooding, in particular, in Smart Water EOR. The wettability alteration of the rock surface is induced by ...

• Effects of polymer adsorption on the effective viscosity in microchannel flows: phenomenological slip layer model from molecular simulations 

  Palmer, Teresa Lynne; Espås, Thomas Asadi; Skartlien, Roar (Journal article; Peer reviewed, 2018-10)

  Molecular simulations (Dissipative Particle Dynamics - DPD) were used to quantify the effect of polymer adsorption on the effective shear viscosity of a semi-dilute polymer solution in microchannel Poseuille flow. It is ...

• CO2 mass transfer and interfacial studies for application of carbonated water injection: Axisymmetric pendant drop analysis for simultaneous calculation of CO2 diffusion coefficient and interfacial tension 

  Bagalkot, Nikhil (PhD thesis UiS;439, Doctoral thesis, 2019-02)

  Worldwide, enhanced oil recovery (EOR) projects have been on a gradual rise since early 2000, especially EOR by CO2 injection. Globally, at present, EOR by CO2 injection contributes approximately 67.5% of projects (83 of ...

• Investigation of a new application for cellulose nanocrystals: a study of the enhanced oil recovery potential by use of a green additive 

  Molnes, Silje; Mamonov, Aleksandr; Paso, Kristofer Gunnar; Strand, Skule; Syverud, Kristin (Journal article; Peer reviewed, 2018-02)

  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 ...

• Interfacial tension and CO2 diffusion coefficients for a CO2 + water and n-decane system at pressures of 10 to 160 bar 

  Bagalkot, Nikhil Lakshmish; Hamouda, Aly Anis (Journal article; Peer reviewed, 2018-11)

  The objective of this study is to address the influence of different CO2 phases and degrees of CO2 saturation on the interfacial tension and the diffusion of CO2 into a hydrocarbon drop. Axisymmetric drop shape analysis ...

• Colloid transport in a single fracture-matrix system: Gravity effects, influence of colloid size and density 

  Bagalkot, Nikhil Lakshmish; Kumar, G. Suresh (Journal article; Peer reviewed, 2018-10)

  A numerical model was developed to investigate the influence of gravitational force on the transport of colloids in a single horizontal fracture–matrix system. Along with major transport phenomena, prominence was given to ...

• Surface Forces Apparatus Measurements of Interactions between Rough and Reactive Calcite Surfaces 

  Javadi, Shaghayegh; Bratvold, Jon E.; Nilsen, Ola; Røyne, Anja; Dziadkowie, Joanna (Journal article; Peer reviewed, 2018-05)

  Nm-range forces acting between calcite surfaces in water affect macroscopic properties of carbonate rocks and calcite-based granular materials, and are significantly influenced by calcite surface recrystallization. We ...

• Corrosion Under Pipe Support Strategy 

  Tarantino, Sebastian Mauro (Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-12-14)

  Due the increment of the incidents related with corrosion under pipe supports (CUPS) at Borealis Plastomer Plant at Chemelot Site located in Geleen, Netherlands, it was decided by the management to face this problem and ...

• Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen 

  Mulrooney, Mark Joseph; Larsen, Leif; Van Stappen, Jeroen; Rismyhr, Bjarte; Senger, Kim; Braathen, Alvar; Olaussen, Snorre; Mørk, Mai Britt Engeness; Ogata, Kei; Cnudde, Veerle (Journal article; Peer reviewed, 2018-11)

  The Upper Triassic to Middle Jurassic Wilhelmøya Subgroup forms one of the more suitable reservoir units on the Norwegian Arctic archipelago of Svalbard. The target siliciclastic storage unit, which is encountered at approx. ...

• Determinants of oil and gas investments on the Norwegian Continental Shelf 

  Berntsen, Martin A.S; Bøe, Kristine; Jordal, Therese; Molnar, Peter (Journal article; Peer reviewed, 2018-02)

  This paper studies the investment decisions by oil and gas companies operating on the Norwegian Continental Shelf. We account for the heterogeneity across the fields by including field-specific variables, including geological ...

• Effect of Silica nanoparticles on fluid/rock interactions during low salinity water flooding of chalk reservoirs 

  Abhishek, Rockey; Hamouda, Aly Anis; Ayoub, Amr (Journal article; Peer reviewed, 2018-07)

  Abstract: The main objective of this work is to address the adsorption of Silica nanoparticles (NPs) dispersed in different brines on chalk surfaces and their effect on fluid/rock interaction. Isothermal static and dynamic ...

• Dynamic interfacial tension measurement method using axisymmetric drop shape analysis 

  Bagalkot, Nikhil Lakshmish; Hamouda, Aly Anis; Isdahl, Ole Morten Robertsen (Journal article; Peer reviewed, 2018-06)

  The current method describes a simple modification to the dynamic and equilibrium interfacial tension (IFT) measurement in a multiphase system (gas-liquid/liquid-liquid) by the Axisymmetric Drop Shape Analysis (ADSA) pendant ...

• Miscible CO2 flooding for EOR in the presence of natural gas components in displacing and displaced fluids 

  Hamouda, Aly Anis; Chughtai, Sidra (Journal article; Peer reviewed, 2018-02)

  Carbon dioxide (CO2) flooding is a complicated process as it involves phase behavior. The objective of this work was to understand the mass transfer mechanisms during flooding with CO2 and CO2/C1/C3 (CO2/HC) based on ...

• Downhole Temperature Modeling for Non-Newtonian Fluids in ERD Wells 

  Sui, Dan; Langåker, Vebjørn (Journal article; Peer reviewed, 2018)

  Having precise information of fluids' temperatures is a critical process during planning of drilling operations, especially for extended reach drilling (ERD). The objective of this paper is to develop an accurate temperature ...

• Review and investigations on geothermal energy extraction from abandoned petroleum wells 

  Sui, Dan; Wiktorski, Ekaterina; Røksland, Marius; Basmoen, Tommy A. (Journal article; Peer reviewed, 2018-08)

  Geothermal energy is a sustainable and renewable energy source, which can be used in electricity production, space heating/cooling, and other industrial applications. In the recent years, it has been gathering more and ...

• Numerical simulation of flows in concentric and eccentric annulus – relevant to geothermal wells 

  Przymuszala, Kamil (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-07)

  At the end of 20th century, the utilization of geothermal energy has increased by 150% forming a solid industry of relevant importance on global markets (Dickson & Fanelli, 2004). According to numerous analyses, this type ...

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