Department of Energy and Petroleum Engineering (TN-IEP): Nye registreringer
Viser treff 21-40 av 570
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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 ... -
Dynamic Performance and Control Strategies of Micro Gas Turbines: State-of-the-Art Review, Methods, and Technologies
(Peer reviewed; Journal article, 2023)The stringent energy and climate change regulations have resulted in a growing share of non-dispatchable renewable energy sources (i.e., solar and wind) in the global energy mix. This has influenced the use of fast and ... -
Rheological properties of rock-based geopolymer slurries with different dispersant and counterion combinations
(Peer reviewed; Journal article, 2023)The production of Ordinary Portland Cement (OPC) is responsible for a significant part of global CO2 emissions. A potential alternative to OPC is alkali-activated materials (AAM), which do not contain OPC and are not ... -
Assessment of Yield Stress in Oil-Based Drilling Fluids
(Peer reviewed; Journal article, 2023)Yield stress is commonly used to describe the rheological properties of drilling fluids. There are various methods to define such yield stress. Some approaches provide yield stress values sufficient to derive a proper fluid ... -
Alternatives to conventional rig for P&A on fixed installations
(Bachelor thesis, 2023)Looking forward, there will be a need of performing a considerable number of permanent plugging and abandoning (PP&A) of oil and gas wells on the Norwegian Continental Shelf (NCS). These wells just cannot be left behind. ... -
Potential Assessment and Economic Analysis of Concentrated Solar Power against Solar Photovoltaic Technology
(Peer reviewed; Journal article, 2023)Competition between concentrated solar power and solar photovoltaic has been the subject of frequent debate in recent years based on their cost of fabrication, efficiency, storage, levelized cost of energy, reliability, ... -
Nanoparticles for Oil Well Drilling Fluids and Cement
(PhD Theses;738, Doctoral thesis, 2024)Drilling fluids and oil well cement are essential elements of the drilling process and well construction. Drilling fluids play a crucial role in the drilling process, ensuring the safety and efficiency of well construction. ... -
Analysis of Wired Drill Pipe Data and Cuttings Transport
(Master thesis, 2023)The prime objective of all oil and gas companies are to conduct various activities in a safe and cost-efficient manner, while also paying attention to the long-term integrity of the wells. To overcome challenges with reduced ... -
The Application of an Artificial Neural Network as a Baseline Model for Condition Monitoring of Innovative Humidified Micro Gas Turbine Cycles
(Peer reviewed; Journal article, 2023)Due to high penetration of renewables, the EU energy system is undergoing a transition from large-scale centralized generation toward small-scale distributed generation. The increasing share of intermittent renewables such ... -
Automated Drill Plan Using Reinforcement Machine Learning
(Master thesis, 2023) -
Physics-Based Swab and Surge Simulations and the Machine Learning Modeling of Field Telemetry Swab Datasets
(Peer reviewed; Journal article, 2023)Drilling operations are the major cost factor for the oil industry. Appropriately designed operations are essential for successful drilling. Optimized drilling operations also enhance drilling performance and reduce drilling ... -
New Simple Analytical Surge/Swab Pressure Model for Power-Law and Modified Yield-Power-Law Fluid in Concentric/Eccentric Geometry
(Peer reviewed; Journal article, 2023)The axial movement of pipe in and out of the well generates positive (surge) and negative (swab) pressures that will impact the well pressure. When the swab and surge effects cause well pressures outside the allowable ... -
New Insights into the Behaviour of Commercial Silicon Electrode Materials via Empirical Fitting of Galvanostatic Charge-Discharge Curves
(Peer reviewed; Journal article, 2023)Silicon (Si) materials for use in Lithium ion batteries (LIBs) are of continued interest to battery manufacturers. With an increasing number of commercially available Si materials, evaluating their performance becomes a ... -
Effect of Calcium Expansive Additives on the Performance of Granite-Based Geopolymers for Zonal Isolation in Oil and Gas Wells
(Peer reviewed; Journal article, 2023)Geopolymers have emerged as a promising alternative to Portland cement for oil and gas wells. Achieving effective zonal isolation by use of geopolymers may require controlling their expansion. This study investigates the ... -
Multiscale insights into mechanical performance of a granite-based geopolymer: Unveiling the micro to macro behavior
(Peer reviewed; Journal article, 2023-09)Geopolymers (GPs), based on rocks and similar (waste) materials, have shown promising features as alternatives to Ordinary Portland Cement (OPC) in many applications. The properties of these materials can be tailored to a ... -
Comparison of different configurations of a solar-assisted ground-source CO2 heat pump system for space and water heating using Taguchi-Grey Relational analysis
(Peer reviewed; Journal article, 2023)This work deals with the comparison of different optimized configurations of solar-assisted ground-source CO2 heat pump systems using the Taguchi method and Grey Relational Analysis (GRA) when used for simultaneous space ... -
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 ... -
Modeling and investigation of the performance of a solar-assisted ground-coupled CO2 heat pump for space and water heating
(Peer reviewed; Journal article, 2023)The rise in the popularity of heat pumps should be accompanied by the increase in the utilization of environmentally-safe working fluids. To push for wider uptake of hybrid heat pump systems that use natural working fluids, ... -
Experimental investigation of laminar and turbulent displacement of residual oil film
(Peer reviewed; Journal article, 2023-11)Residual oil films on pipe walls are a common occurrence in industrial processes, and their presence can significantly impact system efficiency and performance. However, the mechanisms that govern oil film removal by an ... -
Adaptive mesh refinement in locally conservative level set methods for multiphase fluid displacements in porous media
(Peer reviewed; Journal article, 2023)Multiphase flow in porous media often occurs with the formation and coalescence of fluid ganglia. Accurate predictions of such mechanisms in complex pore geometries require simulation models with local mass conservation ...