Browsing Faculty of Science and Technology by Title
Now showing items 123-142 of 7097
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A Riemann solver for the Drift-Flux Flow Model
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06)In this thesis we present a method for calculating exact solutions to a system of equations for two phase flow. This solution is valid for a special case of initial condition called the Riemann problem. The system consists ... -
A rigless permanent plug and abandon approach
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)There are many options to perform a PP&A operation. The goal of this thesis was to look at the opportunities to perform an effective offline PP&A of wells based on cost, time and personnel. After searching through Service ... -
A Risk Analysis and the Insurance Policies for the Cruise Ships in the Arctic
(Masteroppgave/UIS-TN-IØRP/2017;, Master thesis, 2017-12-15)The need of human to explore new areas, the climate change and the growing worldwide demand have led to an increasing popularity of the Arctic region the last years. Cruise industry is continuously evolving in this area, ... -
A risk assessment model for selecting cloud service providers
(Journal article; Peer reviewed, 2016-09)The Cloud Adoption Risk Assessment Model is designed to help cloud customers in assessing the risks that they face by selecting a specific cloud service provider. It evaluates background information obtained from cloud ... -
A Risk Based Approach for Calculating Barrier Lengths
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-07)NORSOK D-010 and other standards gives a fixed length of cement for permanently plugging of wells. These lengths are not based on scientific research, but on old practice. A fixed length leads to a shift in focus from where ... -
A risk register based on the (A,C,U) risk perspective
(Masteroppgave/UIS-TN-IØRP/2012;, Master thesis, 2012)A risk register is simply a collection of risk descriptions. However, most risk registers do not sufficiently capture the background knowledge which the contained risk descriptions are based on. To account for this, the ... -
A risk-based study of safety barriers in multicultural work environments
(Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-06-14)11 of 13 studies show that foreign employees are about 1,6 to 13 times more often injured in occupational accidents compared to Norwegian employees. Even though, both national and non-national employees are involved in ... -
A Roadmap for Acquisition of Legacy Parts Through an On-demand Solution Aimed at the Energy Sector on the Norwegian Continental Shelf - A Case Implementation
(Master thesis, 2022)\section{Abstract} Equinor has initiated a Field Life Extension (FLX) project to prolong the end-life operational capabilities of their installations by innovative methods, including Stafjord A. One of these innovative ... -
A secure user authentication protocol for sensor network in data capturing
(Journal article; Peer reviewed, 2015-04)Sensor network is an important approach of data capturing. User authentication is a critical security issue for sensor networks because sensor nodes are deployed in an open and unattended environment, leaving them possible ... -
A simple model for predicting the internal and external filtration during produced water re-injection using field data from Grane well G-32.
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-05-14)Produced water re-injection is a method for managing the produced water in an environmentally friendly way by injecting produced water into a porous formation. This is also a method of maintaining the reservoir pressure. ... -
A simulation model and systemic risk analytics for a net zero energy building
(Masteroppgave/UIS-TN-IØRP/2018;, Master thesis, 2018-06-15)Net zero energy building is becoming one of the most interesting concept to design new residential and commercial buildings where natural energy sources are able to supply the energy demand. Solar energy is a recent ... -
A spacetime not characterized by its invariants is of aligned type II
(Journal article; Peer reviewed, 2011)By using invariant theory we show that a (higher-dimensional) Lorentzian metric that is not characterised by its invariants must be of aligned type II; i.e., there exists a frame such that all the curvature tensors ... -
A stochastic model for correlated commodity prices
(Masteroppgave/UIS-TN-IØRP/2012;, Master thesis, 2012)Stochastic models of commodity prices play an integral role in the risk management of companies exposed to commodity price risk. By applying price models, one can obtain expected values for the future prices of the commodity, ... -
A strategy analysis of HQCC, a competency center in SLB
(Master thesis, 2023)This master’s thesis seeks to conduct a strategic analysis of the Headquarters Competency Center (HQCC), a department within SLB. The focus will be primarily on its situation and future propositions. The study will be ... -
A Study of a Mathematical Model for Cancer Cell Growth in a Gel
(Master thesis, 2017-06-15)In this thesis, a mathematical model describing gel contraction is derived and studied. The mathematical model describes the process where cells are compressing the gel, and the model is therefore used to study the cell ... -
A study of fracture mechanisms when exposed to hydrostatic loads
(Master thesis, 2014-06-13)Bridgman experiment is an experiment that was conducted by Bridgman in 1912. This simple experiment consists of a rod going all the way through a pressure vessel. When pressurizing the vessel, the rod is loaded on the ... -
A study of how a Lean approach can be used in dealing with challenges present at DeepOcean Offshore Base and their specialty within logistics-, warehouse- and workshop services
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-13)Over the last few years we have witnessed one of the largest drops in oil prices. The industry has become highly competitive and customer oriented, and the offshore companies are facing increasing demands for efficiency; ... -
A study of how asset management and condition based maintenance can improve utilization of assets involved in the O&G industry on the NCS
(Master thesis, 2015-06)In the highly competitive and customer oriented oil and gas industry on the Norwegian Continental Shelf, organizations experience increasingly higher demands for efficiency and optimization of performance. The market ... -
A study of how to increase precision in the categorization of deep uncertainty, and how to assess risk under a specific level of deep uncertainty
(Masteroppgave/UIS-TN-IØRP/2018;, Master thesis, 2018-06-15)Many of the recently published articles that try to resolve challenges related to deep uncertainty have based their understanding of deep uncertainty and the various nuances of uncertainty on Courtney’s uncertainty taxonomy. ... -
A study of integrated operations on the norwegian continental shelf
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)In the beginning of the 21st century the Norwegian petroleum industry was faced with two possible future scenarios, the "disintegration" and the "long term" path. The "disintegration" path would involve a stagnation of the ...