Browsing Department of Petroleum Engineering by Subject "VDP::Teknologi: 500::Berg‑ og petroleumsfag: 510::Petroleumsteknologi: 512"
Now showing items 21-40 of 59
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Futuristic Approach to Riserless Plug and Abandonment Operations
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-13)On the Norwegian Continental Shelf (NCS) today, there are 1033 subsea wells that are classified with the status online/operational, Drilling, Predrilled, Suspended and Closed[1] and these subsea wells will have to be ... -
Gas Hydrate Growth Kinetics: A Parametric Study
(Journal article; Peer reviewed, 2016-12)Abstract: Gas hydrate growth kinetics was studied at a pressure of 90 bars to investigate the effect of temperature, initial water content, stirring rate, and reactor size in stirred semi-batch autoclave reactors. The ... -
Heat Recovery Mechanism for Non Condensable Geothermal Fractured Reservoirs by CO2 Injection and Well Heat Insulating
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06)In this thesis we analyzed the potential use of operating geothermal plants with water and CO2 as working fluids using a geothermal simulator TOUGH2 module EOS1 and EOS2, respectively. We also studied the sensitivities of ... -
Impact of Well Configuration on CO2 Injection for Energy Exploitation in Geothermal/Geopressured Reservoirs
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06)Injecting dissolved CO2 into deep saline aquifers is one of the more promising methods of alleviating greenhouse gas emissions. By simultaneously extracting the geothermally-heated brine in the aquifer, there is an opportunity ... -
Influence of Silica Based Nanofluid on the Physical Properties, IFT, and CO2 Diffusion in a Carbonated Water - n-decane system: An Experimental and Numerical Study
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06)Carbonated water injection (CWI) for enhanced oil recovery (EOR) overcomes mobility issues, macroscopic bypassing and sweep efficiency limitation of conventional CO2 injection. It might also lead to reconnection of trapped ... -
Integrity Monitoring Methods for Producing and Plugged Wells
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-07)More challenging wells in sensitive areas require appropriate integrity monitoring to address the safety and environmental concerns. The purpose of this thesis was to gain an overview of the current status of well integrity ... -
Investigation of Corrosion in Geothermal Wells - A Qualitative Risk Assessment
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-15)The petroleum industry uses a variety of qualitative risk assessment methods for maintaining well integrity, such as well barrier schematics and barrier diagrams. Identifying barriers and using well barrier schematics are ... -
Key criteria for successful LNG market development to replace LPG in the Scandinavian market.
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06)The main goal of the thesis is to perform the comparative study of LNG and LPG markets and to examine key factors for successful LNG implementation on the Scandinavian market on competition with LPG. It was found that the ... -
Life Cycle of deepwater oil and gas operational challenges/solutions and simulation studies
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-08-21)Deepwater is defined as water depths that are greater than 1 000 ft. The exploration and development activities in deepwater are the Oil and Gas industry’s biggest challenges, and they demand a huge investment. However, ... -
Life Cycle Well Integrity and Reliability
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-11)This thesis presents a method for reliability based casing design. The method is inspired by the model described by Das et al. (2015) - A model for Well Reliability Analysis throughout the Life of a Well Using Barrier ... -
Measurement of gas fraction in gas-liquid flow using a buoyancy sensor
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-07-13)In this thesis, an innovative new method for measuring in-situ gas fraction in vertical flowing pipes is proposed as an alternative to using differential pressure. The new method has been tested by developing an experimental ... -
Mechanical and physical behavior of high-porosity chalks exposed to chemical perturbation
(Journal article; Peer reviewed, 2015-09)Extensive study on the effect of dissolution–precipitation on mechanical behavior of various high-porosity outcrop chalks (Liége, Aalborg, Kansas, Stevns Klint, and Mons) flooded with simplified aqueous chemistry at 130 ... -
Mitigating Stick-Slip Vibrations Using Surface Control Software - A Validation of SoftSpeed II™ Using High-Speed Along-String Dynamics Measurements in a Norwegian Offshore Field
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-05-30)Stick-slip is a well known drilling related problem that causes damage and delays, often resulting in an overall more expensive well. These problems have traditionally been remedied by reducingWOB or increasing RPM ... -
NCS Drilling Data Based ROP Modelling and its Application
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-15)Predicting the ROP (rate of penetration) before drilling is essential to improve the overall drilling efficiency and thereby reduce the non-productive time and costs. For this, good ROP model is required. Several ROP models ... -
Offshore ledelse og endring: Hvordan støtte utvikling og implementering av ISSOW (integrated safe system of work)
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-12)Som operatør av Ekofisk feltet har ConocoPhillips Norge kontinuerlig jobbet med å redusere sannsynligheten for hendelser med storulykkes potensial. Innen næringen har det vært fokus på å arbeide med å redusere storulykkesrisiko ... -
Permeability evolution of chalk under different stress states
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-15)This thesis reports the results obtained from triaxial tests on Kansas outcrop chalk flooded with inert NaCl brine. Permeability measurements are conducted at 50ºC under different stress states simulated by five test ... -
Porosity and permeability development in compacting chalks during flooding of nonequilibrium brines: Insights from long-term experiment
(Journal article; Peer reviewed, 2015-05)We report the complete chemical alteration of a Liège outcrop chalk core resulting from a 1072 flow-through experiment performed during mechanical compaction at 130°C. Chemical rock-fluid interactions alter the volumetric ... -
Prediction of dispersions and emulsions by using LedaFlow Q3D
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-15)Well streams in pipelines are often transported over relatively long distances. The well streams often consist of simultaneous flow of gas, oil and water. Oil and water affect each other by making emulsions, which influence ... -
Rate of penetration optimization using moving horizon estimation
(Journal article; Peer reviewed, 2016)Increase of drilling safety and reduction of drilling operation costs, especially improvement of drilling efficiency, are two important considerations in the oil and gas industry. The rate of penetration (ROP, alternatively ... -
Selection of Long or Short Production Casing on HPHT Wells
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06)Drilling in high-pressure high-temperature (HPHT) wells present many economical, technical and operational challenges. The wells are usually located in deep water¬¬¬––where the total well cost and trip times are increased. ...