Browsing Department of Energy and Petroleum Engineering (TN-IEP) by Title
Now showing items 457-476 of 572
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Revealing Silicon’s Delithiation Behaviour through Empirical Analysis of Galvanostatic Charge–Discharge Curves
(Peer reviewed; Journal article, 2023-04)The galvanostatic charge–discharge (GCD) behaviour of silicon (Si) is known to depend strongly on morphology, cycling conditions and electrochemical environment. One common method for analysing GCD curves is through ... -
Revealing Silicon’s Delithiation Behaviour through Empirical Analysis of Galvanostatic Charge–Discharge Curves
(Peer reviewed; Journal article, 2023-04)The galvanostatic charge–discharge (GCD) behaviour of silicon (Si) is known to depend strongly on morphology, cycling conditions and electrochemical environment. One common method for analysing GCD curves is through ... -
Revealing the Effect of Superplasticizers on Viscosity and Yield Stress of Geopolymers
(Bachelor thesis, 2022)Ordinary Portland cement has for a long time been the prime material used in well cementing, zonal isolation and permanent well abandonment. Cement is considered a necessity in the oil and gas industry for providing zonal ... -
Review and investigations on geothermal energy extraction from abandoned petroleum wells
(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 ... -
Review of Experimental Sorption Studies of CO2 and CH4 in Shales
(Journal article; Peer reviewed, 2019-10)In recent years CO2 injection in shale has been investigated with aim to enhance shale gas recovery (ESGR) and permanently sequester CO2. This paper reviews the state of research on CH4 and CO2 sorption in shale. We present ... -
A review on geothermal wells: Well integrity issues
(Peer reviewed; Journal article, 2020-12)Geothermal energy is an important potential and a strategic area for developing activities regarding renewable energy and future studies. It involves a great potential and a main role in the worldwide energy sector, ... -
Revisiting Polytetrafluorethylene Binder for Solvent-Free Lithium-Ion Battery Anode Fabrication
(Peer reviewed; Journal article, 2022)Solvent-free (SF) anodes with different carbon materials (graphite, hard carbon, and soft carbon) were fabricated to investigate the stability of different anodes with polytetrafluorethylene (PTFE) degradation. The graphite ... -
"Rheological characterization of HPAM solutions in steady and transient shear flows using single-mode physical models of polymeric liquids’’
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07)The material function of Partially Hydrolyzed Polyacrylamide (HPAM) in three concentration of Cc=3.104 ppm, Cc=2.104 ppm and Cc=1.5.104 ppm both for steady and transient flow was studied in this research. Then data was ... -
Rheological characterization of Polyanionic Cellulose solutions with application to drilling fluids and cuttings transport modeling
(Peer reviewed; Journal article, 2018)In petroleum drilling, aqueous Polyanionic Cellulose solutions (PAC) are often used as a drilling fluid model system in experimental laboratory studies to investigate cuttings transport. Cuttings transport refers to the ... -
Rheological Compatibility of a Hardening Spacer Fluid and Oil-based Drilling Fluid
(Peer reviewed; Journal article, 2023-08)In the placement process of the cement slurry, treatment fluids such as the spacer are pumped ahead of the cementitious slurry to minimize the contamination of the slurry by drilling fluid and ensure superior bonding to ... -
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 ... -
Rheology assessment and barite sag in a typical North Sea oil-based drilling fluid at HPHT conditions
(Peer reviewed; Journal article, 2023)The occurrence of barite sag in drilling fluids has relatively often been the cause for gas kicks in oilwell drilling. The subsequent absorption of gas into drilling fluid could lower the density and reduce the viscosity ... -
Rheology assessment and barite sag in a typical North Sea oil-based drilling fluid at HPHT conditions
(Peer reviewed; Journal article, 2023)The occurrence of barite sag in drilling fluids has relatively often been the cause for gas kicks in oilwell drilling. The subsequent absorption of gas into drilling fluid could lower the density and reduce the viscosity ... -
Rigless Tubing Retrieval for Plug and Abandonment and Slot Recovery Operations on the Norwegian Continental Shelf
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2020-06-15)The conventional way of performing permanent P&A operations on the NCS have been with the use of a drilling rig. It is believed that this is not the optimal unit for the purpose, as they are costly to run with day rates ... -
The Role of Micro Gas Turbines in Energy Transition
(Peer reviewed; Journal article, 2022)In the progressively rising decentralized energy market, micro gas turbines (MGT) are seen with great potential owing to their low emissions, fuel flexibility, and low maintenance. The current transformation in the landscape ... -
ROP Modeling
(Bachelor thesis, 2022)Drilling fast and safe has and is a key value for operator companies. Maintaining a high Rate of Penetration (ROP) during drilling without causing incidents enables drilling project costs to be reduced. In 1964 Bingham ... -
ROP Modelling, Analysis and Optimization Study Based on Morvin Field 6506/11 Drilling Data.
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-06)During the planning phase, the drilling rate of penetration (ROP) optimization simulation studies are performed in order to increase ROP, reduce the drilling time - and bit wear. Optimizing ROP is important to improve the ... -
Rotary Steerable System modelling and simulator
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-12)Nowadays, there is a fact in the oil industry: directional drilling is a common and essential procedure in major drilling operations. With the development of technologies that allows horizontal and multilateral wells, the ... -
Safety and reliability improvement of valves and actuators in the offshore oil and gas industry
(Peer reviewed; Journal article, 2022)Valve failure is a major risk and a costly phenomenon in the offshore sector of the oil and gas industry. It results in severe negative consequences, such as a loss of assets, a loss of production due to plant shutdowns, ... -
Safety and reliability improvements of valves and actuators for the offshore oil and gas industry through optimized design
(PhD thesis UiS;573, Doctoral thesis, 2021-02)Valves are essential components of piping systems in the oil and gas industry, especially offshore, where they are used for stopping or starting the fluid, flow regulation, and back flow prevention, as well as safety ...