Blar i Institutt for geovitenskap og petroleum på tittel
Viser treff 482-501 av 2584
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Cuttings Bed Erosion in Horizontal Wells
(Master thesis, 2016)Many of the time consuming and economically demanding drilling problems faced today can be tracked back to poor hole cleaning, even more so when drilling through highly inclined sections. Improved hole cleaning operations ... -
Cuttings bed erosion using a selection of interstitial fluids
(Master thesis, 2024)I boreoperasjoner kan effektiv hullrensing være utfordrende. Borekaks har en tendens til å samle seg langs borehullsveggen, noe som kan føre til fastkjørte borerør, brudd, redusert borehastighet (ROP) og andre problemer ... -
Cuttings bed erosion using a selection of interstitial fluids
(Master thesis, 2024)I boreoperasjoner kan effektiv hullrensing være utfordrende. Borekaks har en tendens til å samle seg langs borehullsveggen, noe som kan føre til fastkjørte borerør, brudd, redusert borehastighet (ROP) og andre problemer ... -
Cuttings Transport in Inclined Sections
(Master thesis, 2017)Mud rheology is a key parameter in hole cleaning efficiency. Field data suggests that oil-based drilling fluids perform better compared to water based drilling fluids in the field, even with identical rheological properties, ... -
Cyclic fatigue in unlined hydro tunnels caused by pressure transients
(Peer reviewed; Journal article, 2021)Regulated hydropower is currently the most capable load balancing technology for the future renewable energy system which will be characterized by a large share of unregulated energy from solar and wind power. Increased ... -
Cyclic oedometer swelling tests on rocks from North-Central Luzon, Philippines
(Chapter, 2020)Tunnels passing through swelling rocks are subjected to stability problems as moisture changes affect the material properties of the rocks. The drying out process during construction may cause local contraction stresses ... -
Cyclic Same-Well Enhanced Oil Recovery - Gas EOR Assessment for a Horizontal Multi-Fractured Well
(Master thesis, 2016)Demand for petroleum hydrocarbons in the world is still high but the proven conventional reserves has decreased progressively. Alternative power resource in the form of unconventional reservoir eventually has become a prime ... -
Cyclic Water Injection: A Simulation Study
(Master thesis, 2014)Cyclic waterflooding is a recovery method that increases the cumulative oil production in stratified, heterogeneous reservoirs. The process is based on alternated injection rates and alternating waterflood patterns within ... -
Dagbruddsalternativer i en industrimineralforekomst
(Master thesis, 2013)I denne oppgaven er det gjort et forsøk på å optimalisere utvidelsen av marmorbruddet til Brønnøy Kalk AS og dele det inn i pushbacker. Dataverktøyet NPV Scheduler er brukt for å generere optimaliserte bruddalternativer ... -
Dagbruddsdesign med diskontering av kontantstrøm
(Master thesis, 2016)«Dagbruddsdesign med diskontering av kontantstrøm» er en masteroppgave skrevet at Eirik Hjelle. Oppgaven er utført ved Institutt for geologi og bergteknikk (IGB) ved Norges teknisk-naturvitenskapelige universitet (NTNU). Rana ... -
Dagbruddsstabilitet i Norcem Kjøpsvik
(Master thesis, 2019)Sammendrag Dagbruddsområdet til Norcem Kjøpsvik er i en situasjon hvor en optimalisering av dagbruddets vegg er av interesse. Denne oppgavens mål er å undersøke total- og detaljstabilitetsforholdene for endelig planlagt ... -
Dannelse av sulfidforekomster i Reinfjord og Lokkarfjord, Seiland magmatiske provins - En svovelisotopstudie av økonomisk interessante sulfid-forekomster dannet i forbindelse med ultramafisk magmatisk aktivitet.
(Master thesis, 2013)En systematisk petrografisk-geokjemisk oversikt av sulfidforekomstene i Reinfjord (Troms) og Lokkarfjord (Finnmark) i Nord-Norge blir her gitt. Hensikten med oppgaven er å øke forståelsen for geologien i området, spesielt ... -
Dannelse av sulfidforekomster i Reinfjord og Lokkarfjord, Seiland magmatiske provins: En svovelisotopstudie av økonomisk interessante sulfid-forekomster dannet i forbindelse med ultramafisk magmatisk aktivitet.
(Master thesis, 2013)En systematisk petrografisk-geokjemisk oversikt av sulfidforekomstene i Reinfjord (Troms) og Lokkarfjord (Finnmark) i Nord-Norge blir her gitt. Hensikten med oppgaven er å øke forståelsen for geologien i området, spesielt ... -
Data analysis on numerical simulation results to determine the effectiveness of mitigation measures for hydrodynamic slugging in an oil and gas asset on the Norwegian Continental Shelf.
(Master thesis, 2022)Multi-phase flow-related issues in subsea pipelines and risers may cause a lot of problems in oil and gas production. One of these issues is hydrodynamic slugging. This unwanted phenomenon which is an oscillatory flow may ... -
Data descriptor: A chemical, crystallographic and magnetic characterisation of individual iron-oxide grains in Hawaiian lavas
(Journal article; Peer reviewed, 2018)Our knowledge on the behaviour of the geomagnetic field through time critically depends on how information of the past state of the field is recorded by, and stored in iron-bearing minerals such as magnetite. For small, ... -
Data Ming of Exploration and Production Data for Well Planning - A prototype illustrating how data mining can be useful in well planning
(Master thesis, 2016)This thesis investigates data mining and the well planning process in field development. It will first provide some background on data mining, two data mining algorithms and areas where data mining can be applied in the ... -
Data-driven Borehole Imaging and Monitoring
(Doctoral theses at NTNU;2017:329, Doctoral thesis, 2017) -
Data-driven derivative-free trust-region model-based method for resource allocation problems
(Peer reviewed; Journal article, 2023)Allocating a limited available resource between a set of units is a problem that arises in several application areas. We propose an online derivative-free trust-region model-based method to tackle a fairly general version ... -
Data-Driven Optimization of Multiple Gas-Lifted Wells by Using Extremum Seeking Control
(Master thesis, 2023)Denne oppgaven utforsker anvendelsen av Extremum Seeking Control (ESC) for å optimalisere gassløfteoperasjoner i olje- og gassindustrien. Gassløft er en mye brukt kunstig løftemetode som øker produksjonshastigheten til ... -
Data-Driven Reservoir Modeling: Application of Proxy Models in Reservoir Management
(Doctoral theses at NTNU;2023:183, Doctoral thesis, 2023)This Ph.D. thesis consists of 8 papers that summarize the main contents of the research work done over the past 3 years. Due to the ability of machine learning (ML) in capturing high nonlinearity, the thesis mainly touches ...