Blar i Department of Energy and Petroleum Engineering (TN-IEP) på tittel
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Heat Transfer Modeling and Simulation in Geothermal Wells
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06-15)Geothermal energy is among the fastest growing renewable energies. In the field of geothermal, energy conversion refers to the power plant technology that converts the hot geothermal fluids into electric power. The two ... -
Heat Transportation in Geothermal Wells - A Comparison of Laboraotry-Scale and Full-Scale Construction at Bryne VGS
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-15)This thesis describes and investigates heat transfer in geothermal wells by investigating a real-scale geothermal system and a laboratory setup, and exploit the boundary conditions. -
Hole cleaning and wet-granular rheology of rock cutting beds: Impact of drilling fluid composition
(Peer reviewed; Journal article, 2022)Cuttings-beds formation is an issue that must be considered during all wellbore drilling operations. This problem increases at highly deviated or horizontal wells, where cuttings removal efficiency becomes one of the most ... -
Holistic management of a smart city thermal energy plant with sewage heat pumps, solar heating, and grey water recycling
(Peer reviewed; Journal article, 2023)This article introduces a modern thermal energy plant consisting of sewage heat pumps, a biogas boiler, thermal solar collectors, and grey water recycling. It further discusses advanced methods to achieve energy efficiency ... -
Hydraulic Behavior in Cased and Open Hole Sections in Highly Deviated Wellbores
(Chapter, 2019)In this paper we present results from flow loop experiments with an oil-based drilling fluid with micronized barite as weight materials. The use of micronized barite allows using lower viscosity drilling fluid, providing ... -
HYDROGEN FUELED GAS TURBINE (GT) TECHNOLOGIES AS PART OF THE SOLUTION TO DECARBONIZE ENERGY SECTOR
(Master thesis, 2021)Human activities caused significant greenhouse gas emissions since industrial revolution which contributes to the global warming. To limit the emissions, the global energy system shall transform from a fossil-based energy ... -
Hydrogen Safety Considerations: Mitigating Risks and Securing Operations in Enclosed Spaces
(Peer reviewed; Journal article, 2023)The increased interest in hydrogen as a versatile and environmentally friendly energy carrier has led to its recognition as a potential solution for addressing environmental concerns and challenges associated with transitioning ... -
A Hydrogen-Fueled Micro Gas Turbine Unit for Carbon-Free Heat and Power Generation
(Peer reviewed; Journal article, 2022)The energy transition with transformation into predominantly renewable sources requires technology development to secure power production at all times, despite the intermittent nature of the renewables. Micro gas turbines ... -
Identification and analysis of Potential Retarders for Geopolymers Designed for Well cementing
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-15)Ordinary Portland cement (OPC) is the primary material, which is used in oil well cement, isolation formation and plug and abandonment. OPC has many advantages and some limitations reviewed by different authors. The ... -
Identification of Nonlinear Conservation Laws Using Symbolic Neural Networks
(PhD Theses;731, Doctoral thesis, 2023)Nonlinear dynamical systems are omnipresent in nature, commonly seen in many disciplines such as physics, biology, chemistry, climate science, and engineering. In this thesis, we introduce several new ideas by integrating ... -
Impact of Admixtures on Pumpability and Short-Term Mechanical Properties of Rock-Based Geopolymer for Zonal Isolation and Well Abandonment
(Bachelor thesis, 2021)Ordinary Portland Cement (OPC) is the primary binder material used for primary cementing and plug and abandonment (P&A). This material has many advantages and some shortages, and it is well-studied when it comes to its ... -
Impact of data pre-processing techniques on recurrent neural network performance in context of real-time drilling logs in an automated prediction framework
(Peer reviewed; Journal article, 2021-11)Recurrent neural networks (RNN), which are able to capture temporal natures of a signal, are becoming more common in machine learning applied to petroleum engineering, particularly drilling. With this technology come ... -
Impact of Wettability on Rock Mechanics and Oil Recovery: A Comparative Study on Different Outcrop Chalks
(PhD thesis UiS;502, Doctoral thesis, 2020-04)Chalk reservoirs are highly fractured and are known for their remarkable storage capacity as a reservoir rock for the petroleum industry. Chalk is a sedimentary carbonate rock primarily made up of calcium carbonate (calcite, ... -
Improved Dynamic Modelling of Two-Phase Flow in Well Control Operations
(PhD thesis UiS;577, Doctoral thesis, 2021-03)This thesis focuses on exploring applications and optimizing transient numerical models for simulating well control situations. The main scope of the research was to find opportunity for improving existing numerical models ... -
Improvement of volumetric sweep efficiency during oil production using ECO-clay
(Master thesis, 2023)Excess water production during oil production is a big challenge that may affect the economics and environmental concerns. Different methods have been developed to reduce water production and improve the efficiency of oil ... -
Improving distribution system state estimation with synthetic measurements
(Peer reviewed; Journal article, 2021)Distribution state estimation is a desired feature of modern power systems. The availability of measurements from smart meters has opened the door to extend the application of state estimation techniques down to end ... -
Improving drilling hydraulics estimations ‑ a case study
(Peer reviewed; Journal article, 2021-06)Accurate pressure drop estimation is important for drill string and bit nozzles design and optimized fluid circulations as well as identifying the drilling problems such as bit nozzle(s) washout or plugging. In this study, ... -
Industrial feasibility study for the use of barite as a permanent well barrier element
(Master thesis, 2021)As more and more wells reach the end of their production life, the focus on permanent plug and abandonment has increased in interest. Cost-efficient abandonment of wells with ceased production is an important economic goal ... -
Influence of Adsorption Layer Thickness in Tight Compressible Shales subject to Gas Production
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)The gas transport in shale nanopores has always been a major concern in developing shale gas reservoirs. Different gas flow regimes in shale nanopores have been studied and classified during recent years. Some mathematical ... -
Influence of density, viscosity and interfacial tension on liquid droplet dynamics from an open-ended vertical capillary pipe. An experimental investigation
(Master thesis, 2021)The principal objective of the present work is to measure the surface tension of liquids by using a drop weight method by adding new techniques to measure exact drop size and shape, which is linked to the fall velocity and ...