Blar i Department of Energy and Petroleum Engineering (TN-IEP) på tittel
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Investigation of the hydraulic integrity of cement plug: Oilwell cementitious materials
(Peer reviewed; Journal article, 2023)The loss of hydraulic integrity in oil and gas wells due to the loss of cement sheath sealability can lead to environmental contamination, annular pressure build-up, and safety threats. In this study, we examine the hydraulic ... -
Investigation of the performance of a heat pump that uses CO2 as working fluid.
(Bachelor thesis, 2023)Climate change is one of the greatest challenges facing the world today, and reducing greenhouse gas emissions is a critical part of mitigating its impacts. Conventional residential heat pumps use Hydrofluorocarbons (HFCs) ... -
A level set approach to Ostwald ripening of trapped gas bubbles in porous media
(Peer reviewed; Journal article, 2022)Ostwald ripening of gas bubbles is a thermodynamic process for mass transfer, which is important for both foam enhanced oil recovery and geological CO2 storage. We present a methodology for simulating Ostwald ripening of ... -
Leveraging Synergies by Combining Polytetrafluorethylene with Polyvinylidene Fluoride for Solvent-Free Graphite Anode Fabrication
(Peer reviewed; Journal article, 2022)Solvent-free graphite anode is fabricated successfully with the synergistic effect of polytetrafluorethylene (PTFE) and polyvinylidene fluoride (PVDF). PTFE acts as a processing aid reagent to form a self-supporting electrode ... -
Lithium-Ion Capacitors: A Review of Strategies toward Enhancing the Performance of the Activated Carbon Cathode
(Peer reviewed; Journal article, 2023)Lithium-ion capacitors (LiC) are promising hybrid devices bridging the gap between batteries and supercapacitors by offering simultaneous high specific power and specific energy. However, an indispensable critical component ... -
Litteraturstudier om Livssyklusvurdering av Teknologier for Fangst, Lagring og Utnyttelse av CO2
(Bachelor thesis, 2021)In recent years, the awareness of climate change creates concern for the international community. Human activities are the main factors that contribute to the natural greenhouse effect of the earth. The burning of fossil ... -
LNG marine system design, critical appraisal of IGF Code requirements, parametric optimizing of design inputs and mathematical modeling of LNG/NG leakage spread in the Tank Connection Space.
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-14)The European government is concerned about reducing greenhouse gas emissions due to climate change and global warming. Therefore, all sectors within the European Union are committed to achieving the Paris agreement goals, ... -
Low Pressure Adsorption of Carbon Dioxide and Nitrogen on Activated Carbon and Zeolite 13X
(Master thesis, 2023)Several gas separation techniques have been used throughout the year, however the most cost effective and energy efficient gas separation process to date is that of adsorption. Adsorption of carbon dioxide from flue or ... -
Low-temperature carbonated water injection for enhanced oil recovery in chalk
(Master thesis, 2023)The oil industry is still an essential contributor to meeting the continuously increasing global energy demands. As the world looks towards reaching carbon neutrality, new approaches and innovative ideas have never been ... -
A LSSVR-PSO machine learning model for the estimation of reservoir porosity from petrophysical well logs
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-10)Reservoir porosity is a key parameter in the reservoir evaluation and geomechanics. To obtain accurate measurement of porosity can be time-consuming and expensive by core sampling or applying various well logging tools. ... -
Machine learning for underground gas storage with cushion CO2 using data from reservoir simulation
(Peer reviewed; Journal article, 2023)Underground natural gas storage (UNGS) is a means to store energy temporarily for later recovery and use. In such storage operations, carbon dioxide (CO2) can be injected as cushion gas to improve the operating efficiency ... -
Machine learning in reservoir permeability prediction and modelling of fluid flow in porous media
(Peer reviewed; Journal article, 2019)Reliable data on the properties of the porous medium are necessary for the correct description of the process of displacing hydrocarbons from the reservoirs and forecasting reservoir performance. The true permeability of ... -
Manipulation of the choke pressure during Managed Pressurized Drilling (MPD) operation
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06)In the present investigation, the disturbance and its effect on the bottom hole pressure has been studied. After digging into the prior works, it’s figured out that the reason of their failure is oversimplification and ... -
Manufacturing Software Prototype for applying fuzzy MCDM in Well completion optimization
(Master thesis, 2021)Well completion is the important system to put the well into the production phase. This well completion engineering system is complex engineering which requires reservoir drilling, cementing of the well, installation of ... -
Material behavior of perforated and non-perforated simply supported steel plates in air and water, subjected to impact loads.
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06-12)Due to challenging economic times, industries such as oil and gas face the need of moving from customized, time-consuming, and costly solutions, to more standardized technologies, to reduce costs and maintain high profits. ... -
Materials for Well Integrity: Performance of Setting Materials for Well Cementing Operation
(PhD thesis UiS;642, Doctoral thesis, 2022-05)Primary cementing operation is the process of pumping and placing a cementitious slurry in a well. After setting, the so-called barrier material has to provide zonal isolation in the annular gap behind casing string. After ... -
Mathematical and Numerical Modelling of Lithium Battery
(Master thesis, 2021)Application of lithium-ion batteries have increased in recent years due to their high energy density, low weight and smaller form factor. Machine learning algorithms are used in lithium-ion battery management systems due ... -
Mathematical modeling of cancer cell migration - from in vitro to in vivo
(PhD thesis UiS;511, Doctoral thesis, 2020-05)Tumors has been the object of computational model studies for nearly five decades. The early models considered simple tumor growth based on nutrients, whereas models now can simulate from microscale gene expressions in ... -
Mathematical modeling of compressible and incompressible multiphase flow based on mixture theory
(PhD thesis UiS;501, Doctoral thesis, 2020-11)MIXTURE THEORY has been developed based on balance laws and conservation principles which is well known in continuum mechanics, and has been widely applied to systems which can be characterized as a mixture of interacting ... -
Mathematical Modelling of the Drilling Process for Real-time Applications in Drilling Simulation, Interpretation and Assistance
(PhD thesis UiS;, no.;506, Doctoral thesis, 2019)For the last thirty years, mathematical modelling has been used to develop software solutions that support drilling engineering activities at the planning stage of drilling operations. But it is only for the last decade ...