Blar i UiS Brage på forfatter "Flage, Roger"
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An environmental risk assessment framework for enhanced oil recovery solutions from offshore oil and gas industry
Vora, Mehul Arun; Sanni, Steinar; Flage, Roger (Peer reviewed; Journal article, 2021)Environmental risk assessments are necessary to understand the risk associated with enhanced oil recovery (EOR) solutions and to provide decision support for choosing the best technology and implementing risk-reducing ... -
Environmental risk assessment of enhanced oil recovery solutions
Vora, Mehul (PhD thesis UiS;, Doctoral thesis, 2023)The overall objective of the research presented in this thesis is to contribute new knowledge about the environmental risk related to shortlisted products and processes developed at the National Improved Oil Recovery (IOR) ... -
Environmental risk assessment of inter-well partitioning tracer compounds shortlisted for the offshore oil and gas industry
Vora, Mehul Arun; Njau, John-Sigvard Gamlem; Sanni, Steinar; Flage, Roger (Peer reviewed; Journal article, 2022-05)Quantifying residual oil saturation (SOR) in the inter-well region of oil and gas reservoirs is key for successfully implementing EOR solutions. Partitioning inter-well tracer tests (PITTs) has become a common method for ... -
Exposure and effects of synthetic enhanced oil recovery polymers on the Norwegian Continental Shelf
Vora, Mehul Arun; Sanni, Steinar; Lyng, Emily; Flage, Roger (Peer reviewed; Journal article, 2023-12)Synthetic polymers are planned to be used for more efficient oil recovery from offshore oil reservoirs. Using synthetic polymers offshore may lead to these being released into the marine environment through produced water ... -
An extended method for evaluating assumptions deviations in quantitative risk assessment and its application to external flooding risk assessment of a nuclear power plant
Bani-Mustafa, Tasneem; Flage, Roger; Vasseur, Dominique; Zhiguo, Zeng; Zio, Enrico (Peer reviewed; Journal article, 2020-04)In quantitative risk assessment, assumptions are typically made, based on best judgement, conservative, or (sometimes) optimistic judgments. Best judgment and optimistic assumptions may result in failing to meet the ... -
Extending and improving current frameworks for risk management and decision-making: A new approach for incorporating dynamic aspects of risk and uncertainty
Glette-Iversen, Ingrid; Flage, Roger; Aven, Terje (Peer reviewed; Journal article, 2023)In recent decades, there has been a growing recognition of the importance of risk-informed decision-making, and the use of risk assessments to support decisions is a core principle in current frameworks and standards for ... -
Feasibility study of PRA for critical infrastructure risk analysis
Johnson, Caroline Amy; Flage, Roger; Guikema, Seth David (Peer reviewed; Journal article, 2021)Probabilistic Risk Analysis (PRA) has been commonly used by NASA and the nuclear power industry to assess risk since the 1970s. However, PRA is not commonly used to assess risk in networked infrastructure systems such as ... -
Ferjefri E39 – En metode for risikovurdering av luftfartøykollisjon mot flytebru over Bjørnafjorden
Tran, Daniel (Masteroppgave/UIS-TN-IØRP/2018;, Master thesis, 2018-06)Statens vegvesen sitt veiprosjekt «Ferjefri E39» har som mål å oppnå en ferjefri strekning langs E39 på Vestlandskysten. I forbindelse med prosjektet Ferjefri E39 skal det bygges en bru over Bjørnafjorden, som ligger sør ... -
Fokus på tidsavhengigheten til kunnskapsdimensjonen og antakelser, med forslag til forbedringer av risikovurderinger
Lura, Aleksander Thrane (Masteroppgave/UIS-TN-IØRP/2017;, Master thesis, 2017-06-14)Det er identifisert en svakhet med dagens praksis at for lite av kunnskapen og erfaringen som akkumuleres over tid har implikasjoner for hvordan vi utfører risikostyring. Det er dermed et behov for en mer dynamisk ... -
Geological and environmental uncertainty and risk assessment in the Arctic, how can these be integrated?
Hinna, Camilla (Masteroppgave/UIS-TN-IØRP/2018;, Master thesis, 2018-07-05)The petroleum industry is now entering more and more areas in the high Arctic, and this thesis studies the geological and environmental uncertainties and risks related to this region. Risks and uncertainties special to the ... -
How Can Risk Science Contribute to Risk Education for Children and Teenagers? Exploring Emerging Practices
Seif Askari, Azadeh (Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-06-14)Risk education is an emerging and interdisciplinary topic. Children and teenagers need risk education to enhance their abilities for decision making under the complex and uncertain conditions of today’s world. Observations ... -
How risk science can explain the cautionary thinking and risk seeking behaviours in society
Ssekyewa, Henry (Master thesis, 2023)In the aftermath of the Covid-19 pandemic, several researchers have accentuated the influence of risk and uncertainty on human behaviour. With perspective to the rippling effects of Covid-19 pandemic, it is the objective ... -
Implementing an uncertainty-based risk conceptualisation in the context of environmental risk assessment, with emphasis on the bias of uncertain assumptions
Flage, Roger (Journal article; Peer reviewed, 2019-12)Environmental risk assessments are routinely carried out in the Norwegian petroleum industry. As this industry is moving north, towards the Arctic and into areas with differing vulnerabilities and new risk sources compared ... -
Man gjennomfører risiko- og sårbarhetsanalyser, men hva så?
Nustad, Bendik, Slemmen (Master thesis, 2022)Denne oppgaven har satt søkelys på oppfølgingen av helhetlige risiko og sårbarhetsanalyser (ROS) i kommuner rettet mot et bestemt fylke. Kommunene har gjennom kommunal beredskapsplikt et ansvar for befolkningens sikkerhet ... -
Mapping climate discourse to climate opinion: An approach for augmenting surveys with social media to enhance understandings of climate opinion in the United States
Bennett, Jackson; Rachunok, Benjamin; Flage, Roger; Nateghi, Roshanak (Peer reviewed; Journal article, 2021)Surveys are commonly used to quantify public opinions of climate change and to inform sustainability policies. However, conducting large-scale population-based surveys is often a difficult task due to time and resource ... -
Marine geohazards exposed: Uncertainties involved
Chivata Cardenas, Ibsen; Flage, Roger; Aven, Terje (Peer reviewed; Journal article, 2022)By exhaustively reviewing the literature related to marine geohazards, this paper reports on their uncertainties. Examples of marine geohazards include submarine landslides, fluid flows in the underground, scour events, ... -
Modelling and Managing Systemic Risk within the Water-Energy-Food Nexus in Norway: A Risk-Based Analytic Review under the WEFN and MACTOR Methodologies
Chang Perez, Maria Isabel (Master thesis, 2021)Human activities, in particular those related to water, energy, and food security, involve inherently complex interactions between natural and human-created systems. Therefore, proper identification and management of ... -
On the Use of Standards and Guidelines as a Tool to Fulfil Regulatory Requirements
Nyvik, Christine Louise Berner; Flage, Roger; Guikema, Seth David (Peer reviewed; Journal article, 2021-01)Over the years, industrial safety regulation has shifted from a “hard” command and control regime to a “soft” regime. A “hard” regime includes the use of strict prescriptive requirements which explain how industry should ... -
Review of Current Risk Assessment Framework in Gaseous Hydrogen Refuelling Stations with Suggestions of Improvement based on New Perspectives in Risk
Derempouka, Efthymia (Master thesis, 2017-06-15)During the energy evolution currently undertaken, hydrogen has emerged as a potential energy carrier among others in transportation sector. However, assuring safety of the relevant infrastructure is a prerequisite to the ... -
Risk Conceptualization and Description in Inherent Risk Assessment As A New Concept Of Risk Assessment and Comparison to QRA Practice In Norway
Ramadhania, Nur (Masteroppgave/UIS-TN-IØRP/2017;, Master thesis, 2017-06)In 2009, Shariff and Leong [1] introduced a new concept named as Inherent Risk Assessment (IRA). The concept integrates quantitative risk analysis and to a process design simulator called HYSYS aiming to provides essential ...