Browsing Universitetet i Stavanger by Title
Now showing items 4383-4402 of 20729
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Double energy vulnerability in the Norwegian low-carbon urban transport transition
(Journal article, 2022)Household energy poverty and transport energy poverty are increasingly recognised as entangled in energy social science. The intersection of these related phenomena is growing due to twin transitions of decarbonisation and ... -
Double Energy Vulnerability in the Urban and Peri-Urban Areas of Stavanger – Addressing Equity and Vulnerability in Low Carbon Energy Transitions
(Master thesis, 2022)Europe is experiencing critical energy crisis, and Norway is no exception. The surge in electricity prices in Stavanger has made low-income households unable to obtain the heat, electricity, and other essential energy ... -
Down Time Terms and Information Used for Assessment of Equipment Reliability and Maintenance Performance
(Chapter; Peer reviewed, 2017)Reliability and maintenance data is important for predictive analysis related to equipment downtime in the oil and gas industry. For example, downtime data together with equipment reliability data is vital for improving ... -
Downhole cutting tool design concept for use with the AWS “Driller”
(Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)Production tubing cutting operations is getting more and more common in the North Sea; this is a product of an increasing number of Plug and Abandonment operations and re-completions of old wells. The most common method ... -
Downhole mechanical milling operations using low power drive systems (wireline tractor systems powered via an electric wireline)
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-13)Wireline tractor milling is getting more common and it is expected continue to growing in the next decades. The technology will potentially take over more of the downhole milling marked, and its full potential will come ... -
Downhole Temperature Modeling for Non-Newtonian Fluids in ERD Wells
(Journal article; Peer reviewed, 2018)Having precise information of fluids' temperatures is a critical process during planning of drilling operations, especially for extended reach drilling (ERD). The objective of this paper is to develop an accurate temperature ... -
Downregulation of N-terminal acetylation triggers ABA-mediated drought responses in Arabidopsis
(Journal article; Peer reviewed, 2015-07)N-terminal acetylation (NTA) catalysed by N-terminal acetyltransferases (Nats) is among the most common protein modifications in eukaryotes, but its significance is still enigmatic. Here we characterize the plant NatA ... -
DP systems for offshore vessel positioning in deep water
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013-10-01)Current industry practices and the suggestions from the literature are that offshore oil exploration and production activities will move into deeper water further from shore. To achieve that, dynamic positioning systems ... -
Dragged Anchors Interaction with Subsea Pipelines
(Master thesis, 2024) -
Drama som estetisk læringsform for å utvikle leseforståelse
(Journal article, 2010)Aksjonsforskningsprosjektet «Drama, kreativitet og estetiske læreprosesser» tar utgangspunkt i klasserommets didaktiske utfordringer og dramafagets mulighet til å skape engasjement og motivere til innsats i det faglige ... -
Dramalek og drager
(Bachelor thesis, 2022) -
"Draumar om Huldri og Fossekallen": Bygd og by i Helga Flatlands Etterklang (2022)
(Master thesis, 2024)Helga Flatlands roman Etterklang (2022) er ein samtidsaktuell roman som løftar både bonden og urnorske tradisjonar. Her møter vi dei to forteljarane Johs og Mathilde, kor førstnemnte kjem frå ei bygd i Telemark og sistnemnte ... -
DREAM (Dose-related Risk and Exposure Assessment Model) as a tool to predict biomarker responses in offshore produced water discharge situations
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009-11-25)Every year, approximately 200 million tones of produced water are discharged into the sea by the Norwegian oil industry. Although rapidly diluted, due to its large amount and possible long term (chronic) effects, the ... -
Drift og optimalisering av flash separatoren i en glykol reclamation enhet
(Masteroppgave/UIS-TN-IMN/2009;, Master thesis, 2011)Monoetylenglykol (MEG) benyttes ofte som inhibitor for å unngå hydrater i subsea gasstransportrør. MEG er en miljøvennlig inhibitor, som kan resirkuleres om regenerering benyttes. Regenerering av MEG involverer to trinn; ... -
Drill bit selection and optimization in exploration well 6507/6-4a in the Nordland ridge area
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)The primary objective of this thesis is to analyze and optimize drilling bits which were used to drill of an exploration offshore well in Norwegian Continental Shelf (NCS). The first part ot the thesis work reviews the ... -
Drill bits optimization in the Eldfisk overburden
(Masteroppgave/UIS-TN-IPT/2015;, Master thesis, 2015-06-29)Drill bits are a part of the well program. It is the major tool that does a cutting/crushing action at the end of the drillstring and highly affects the overall drilling performance. The following aspects can be improved ... -
Drill bits technology - introduction of the new kymera hybrid bit
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)The early concepts of hybrid bits date back to the 1930’s but have only been a viable drilling tool with recent polycrystalline diamond compact technology. Improvements in drilling performance around the world continue to ... -
Drill string oscillations during connections when drilling from a semi-submersible platform
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)As the operational window is getting narrower, pressure control is becoming more important. Drilling from a semi-submersible platform can in this context offer new challenges as the top of the drill string will follow the ... -
Drill-in fluids and hydraulic fracturing characterization of lost circulation material
(Master thesis, 2021)Sodium formate and Potassium formate-based drill-in fluids were designed and characterized at the UIS lab. Moreover, Cesium/Potassium- based drill-in fluids were formulated and characterized its properties along with its ... -
Drillbotics 2016: Management of drilling incidents while drilling heterogeneous formation rocks.
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06-29)The purpose of the thesis is to analyse the abnormal incidents on the drill pipe. The reason for this research is to apply the learned theories into the reality by building an automated rig and detect the problems. Also, ...