Browsing Institutt for geovitenskap og petroleum by Title
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Drilling in Karstified Carbonates: Early Risk Detection Technique
(Peer reviewed; Journal article, 2020)Heterogeneous nature and complex rock properties of carbonate reservoirs makes the drilling process challenging. One of these challenges is uncontrolled mud loss. Caves or a system of cavities could be a high-risk zone for ... -
Drilling in Salt Formations and Rate of Penetration Modelling
(Master thesis, 2014)As the industrialization of the world is growing, both energy consumption anddemand are steadily increasing. Hydrocarbons have been an important energyprovider for several decades, but the production from mature oil and ... -
Drilling of Deep-set Carbonates Using Pressurized Mud Cap Drilling
(Master thesis, 2014)A majority of the easy fields have already been developed, while demand for oil and gas continues to increase rapidly. Reservoirs in deep-set carbonates contains a large amount of the worlds remaining hydrocarbons and ... -
Drilling program for Middle-European Volcanoclastic rock: Design/evaluate and optimize
(Master thesis, 2013)The reason for the implementation of the project was that one wanted to optimize a drilling program. The drilling program should be used in the geothermal project to CEE energy in Slovakia. The research area is important ... -
Drillpipe Rotation Effects on Pressure Losses
(Master thesis, 2012)Keeping control of the downhole pressure is important in any drilling situation, and especially when a narrow pressure window is experienced. The equivalent circulation density is influenced by rotation of the drillpipe, ... -
Drillstring Dynamics - Comparative analysis between a lumped element model s ability to recreate axial vibrations observed from measurements of dynamic strain using small-scale drillstring model
(Master thesis, 2016)Lumped element models are desirable for their mathematical simplicity and their practical application for simulating axial vibrations. These models however only approximate the dynamic behavior, and is why real time ... -
Drillstring Vibrations - Identification, Classification and Mitigation
(Master thesis, 2020)Denne masteroppgaven bygger på arbeidet fra prosjektoppgaven i faget TPG4560. Noen deler er tatt direkte fra prosjektoppgaven, kalt «Drillstring Vibrations: A Theoretical Foundation». Masteroppgaven var skrevet i samarbeid ... -
drillWiz: An application for data visualization and drilling optimization
(Master thesis, 2019)En applikasjon er utviklet for å identifisere boredysfunksjon-og-ineffektivitet fra forventede responser i MSE og driftsparametere. Dette arbeidet er en videreføring av et semesterprosjekt som kartla potensialet for ... -
drillWiz: An application for data visualization and drilling optimization
(Master thesis, 2019)En applikasjon er utviklet for å identifisere boredysfunksjon-og-ineffektivitet fra forventede responser i MSE og driftsparametere. Dette arbeidet er en videreføring av et semesterprosjekt som kartla potensialet for ... -
Drivemetoder for strossing av eksisterende vegtunneler
(Master thesis, 2020)Tunneltverrsnittet i mange gamle vegtunneler på det norske og færøyske vegnettet er for lite til å oppfylle dimensjonskrav etter dagens standard. Økt årsdøgntrafikk (ÅDT), ønske om økt fartsgrense og bedre framkommelighet ... -
Drone-based magnetic and multispectral surveys to develop a 3D model for mineral exploration at Qullissat, Disko Island, Greenland
(Peer reviewed; Journal article, 2022)Mineral exploration in the West Greenland flood basalt province is attractive because of its resemblance to the magmatic sulfide-rich deposit in the Russian Norilsk region, but it is challenged by rugged topography and ... -
Droplets Analysis and Model Development for Oil-water Pipe Flow Experiments
(Master thesis, 2019)Among other things one of the major challenges in production of crude oil is the associated water that tugs along with oil. The results of the simultaneous production of oil and water is the formation of different flow ... -
Dual gradient drilling simulations
(Master thesis, 2012)The system studied in this thesis is called the Low Rise Return system and uses a partly filled marine drilling riser with a variable mud level which is used control the bottom holes pressure.Initially main components of ... -
Dual-Porosity Modeling of Tight Unconventionals
(Master thesis, 2018)Enhancing oil recovery in tight unconventional has been a great interest over the last decade. Huff-n-puff gas EOR becomes the most popular method among many alternatives, particularly after EOG Resources, Inc. claimed ... -
Dynamic Autonomous Inflow Control Device - Performance prediction and experimental investigation of a specific rate controlled production valve design
(Master thesis, 2017)Horizontal wells in oil fields with a thin oil layer are known to experience early gas and water breakthrough. Rate controlled production (RCP) valves have been installed by Statoil at the Troll field in order to maintain ... -
Dynamic Process Modeling of Topside Systems for Evaluating Power Consumption and Possibilities of Using Wind Power
(Peer reviewed; Journal article, 2022)Norwegian offshore wind farms may be able to supply power to offshore oil and gas platforms in the near future thanks to the expeditious development of offshore wind technology. This would result in a reduction in CO2 ... -
Dynamic process modelling of topside systems to evaluate power consumption and coupling with periodic power supply from renewables.
(Master thesis, 2022)I løpet av det siste tiåret har det vært en endring i den norske olje- og gassindustrien for å redusere klimagassutslipp ved å satse mer på grønne og miljøvennlige metoder for olje- og gassutvinning. Dette skyldes i stor ... -
Dynamic rock support in burst-prone rock masses
(Chapter, 2018)Rockburst occurs in hard and strong rock after excavation when the in situ rock stresses are high. The “driving force” for rockburst is the energy released from the rock mass. The released strain and seismic energy is ... -
Dynamic Simulation of Gas Expansion in Marine Risers
(Master thesis, 2016)The main objective of the work is to study the dynamic behavior of gas expansion in marine risers. In case of well control situations in deep and ultra deep waters, gas influx shows no warnings if not little, making it ... -
Dynamic wettability alteration for combined low salinity brine injection and surfactant flooding on silica surface
(Peer reviewed; Journal article, 2020)Experimental results of dynamic contact angle measurements of low salinity brine and combined low salinity water and surfactant flooding (LSW–SF) on silica surface are presented in this study. Dynamic contact angle experiments ...