Browsing Department of Energy and Petroleum Engineering (TN-IEP) by Title
Now showing items 48-67 of 572
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Analytical modeling and correction of steady state relative permeability experiments with capillary end effects – An improved intercept method, scaling and general capillary numbers
(Peer reviewed; Journal article, 2021)Steady state relative permeability experiments are performed by co-injection of two fluids through core plug samples. Effective relative permeabilities can be calculated from the stabilized pressure drop using Darcy’s law ... -
Analytical modeling of steady state relative permeability experiments with end effects – An improved intercept method, scaling and general capillary numbers
(Peer reviewed; Journal article, 2021)Steady state relative permeability experiments are performed by co-injection of two fluids through core plug samples. Effective relative permeabilities can be calculated from the stabilized pressure drop using Darcy’s law ... -
Analytical solutions for forced and spontaneous imbibition accounting for viscous coupling
(Journal article; Peer reviewed, 2019-11-22)Fluid-fluid momentum transfer can cause higher flow resistance when fluids flow in opposite directions as compared to the same direction. Conventional modelling of flow in porous media using simple, saturation dependent relative ... -
Analyze Gelling Properties for Time-Dependent Non-Newtonian Fluids
(Master thesis, 2022)Drilling fluids are visco-elastic materials. This means that they behave as a viscous fluid when subject to sufficient shear stress and like an elastic solid when they are in near static conditions. Both properties are ... -
Analyze Gelling Properties for Time-Dependent Non-Newtonian Fluids
(Master thesis, 2022)Drilling fluids are visco-elastic materials. This means that they behave as a viscous fluid when subject to sufficient shear stress and like an elastic solid when they are in near static conditions. Both properties are ... -
Annular frictional pressure losses for drilling fluids
(Peer reviewed; Journal article, 2020)In the paper it is demonstrated how a Herschel-Bulkley fluid model, where the parameters are selected from relevant shear rate range of the flow and are parametrically independent, can be used for pressure loss calculations. ... -
Annular frictional pressure losses for drilling fluids
(Peer reviewed; Journal article, 2021)In the paper, it is demonstrated how a Herschel–Bulkley fluid model, where the parameters are selected from relevant shear rate range of the flow and are parametrically independent, can be used for pressure loss calculations. ... -
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 ... -
Application of Fiber Optic Technology in Reservoir Monitoring
(Master thesis, 2021)The purpose of this thesis was to gain an overview of fields of application of fiber optic technology in reservoir monitoring, how such a measurement system is operated, and challenges that can occur. For automated and ... -
Application of mathematical and machine learning models to predict differential pressure of autonomous downhole inflow control devices
(Peer reviewed; Journal article, 2021)Controlling reservoir fluid flow is important for maximizing petroleum production through wellbores. A major challenge that reduces the production of oil is early breakthrough of secondary fluids to the wellbore perforations. ... -
Application of multicriteria fuzzy clusterization approach to assess the arctic seas oil and gas field development prospects
(Peer reviewed; Journal article, 2019)The article describes a unified approach to the assessment of resources and business planning. As an example, the oil and gas resources of the Pechora Sea are considered in the paper. Based on the specifics of the problem ... -
Application of Multilateral Wells as an alternative solution for costs optimization
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Field completion techniques have progressed over the last twenty years. Today, different methods of well drilling can reduce total costs spent on single well construction. Multilateral wells is the primary example of ... -
Application of non-linear dynamics (SINDy) method of drill string model by machine learning.
(Master thesis, 2022)Numerous data floods research in various fields. Quickly grasping the laws of data and finding out equations are of great significance to the study of system characteristics and control systems. The goal of this thesis is ... -
Application of non-parametric statistical methods to predict pumpability of geopolymers for well cementing
(Peer reviewed; Journal article, 2022)As a potential alternative to Portland cement, geopolymers are getting wider acceptance in the scientific world. On a laboratory scale, the latter is being experimented repeatedly to extract valuable and valid results. To ... -
Application of the quemada viscosity model for drilling fluids
(Chapter, 2021)A number of different models are used to describe the shear rate dependent viscosity of drilling fluids. Most, such as the Herschel-Bulkley model, have a purely empirical basis. The Quemada model, while still empirical, ... -
Applications and Selection of Dissolvable Materials in Well Completions
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06-15)Dissolvable materials are an emerging technology in the petroleum industry with multiple areas of application, the chief among them being multistage well stimulation. The challenges associated with removal of traditional ... -
An approach for optimization of controllable drilling parameters for motorized bottom hole assembly in a specific formation
(Peer reviewed; Journal article, 2023)This study focuses on optimizing drilling parameters when using Positive Displacement Motors (PDMs). In drilling operations involving mud motors, weight-on-bit (WOB) alterations lead to variations in the system's parasitic ... -
Aqueous Electrochemical Reduction of Carbon Dioxide using Carbon Supported Copper Electrocatalyst
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-07-10)The atmospheric concentration of CO2 has been rising progressively from 280 parts per million (ppm) in the pre-industrial time to 410 ppm in 2018. The anthropogenic CO2 emissions are dominated by fossil fuel sources, which ... -
Artificial neural network model for predicting CO2 heat pump behaviour in domestic hot water and space heating systems
(Peer reviewed; Journal article, 2023)The natural refrigerant, CO2, possesses thermophysical properties that make it highly suitable for domestic hot water (DHW) production using heat pump technology. In this study, the development and validation of an artificial ... -
Assessing air-gap of semi-submersibles in the Northern North Sea
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06-13)Sufficient still water airgap is important both for fixed and floating platforms. What is a sufficient airgap according to the rules depends on the rule regime under which the platform is designed. All fixed platforms and ...