Blar i Institutt for geovitenskap og petroleum på tittel
Viser treff 1533-1552 av 2528
-
Nondisturbing extremum seeking control for multi-agent industrial systems
(Peer reviewed; Journal article, 2022)Industrial applications of extremum seeking control (ESC) can be a hit and miss affair. Although a gain in performance can be achieved, the dither applied to excite the system causes unwanted fluctuations in the performance ... -
Nonhyperbolic velocity analysis and improved demultiple for seismic data
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:300, Doctoral thesis, 2011)Reflection seismology is a widely used geophysical method to image and delimit underground oil and gas prospects using seismic data illumination from the surface. The collected information in acquisition contains reflected ... -
Nonlinear Elastic Waves for Estimation of Rock Properties
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:375, Doctoral thesis, 2013)Nonlinear elasticity is a well-known feature that reveals in many phenomena and at different scale, depending on the material. Many independent studies have shown that the nonlinear response of geomaterials differs ... -
Nonlinear Preisach maps: Detecting and characterizing separate remanent magnetic fractions in complex natural samples
(Peer reviewed; Journal article, 2016)Natural remanent magnetization carriers in rocks can contain mixtures of magnetic minerals that interact in complex ways and are challenging to characterize by current measurement techniques. Here a nonlinear mapping scheme ... -
Normal moveout velocity ellipses for the P-, S1-, and S2-waves in fractured media with monoclinic anisotropy
(Master thesis, 2022)Natural fractures are widely distributed in the upper crust. Fracture research is quite important in many fields. To understand the seismic signatures in fractured rocks, several classic effective models for fractured rocks ... -
Normal moveout velocity ellipses in fractured media
(Master thesis, 2019)Når et medium har to forskjellige ikke-ortogonale systemer med vertikale frakturer innebygd i en isotropisk eller en tverrgående isotropi med en vertikal symmetriakse (VTI) -bakgrunn, blir den monoklinisk med et horisontalt ... -
Norne Field manual history matching & analysis
(Master thesis, 2010)A reservoir engineer’s most important job function is to predict the production future of a reservoir from given production rates. To be able to do this job the first requirement is updating a petroleum reservoir model ... -
Northern Lights Project: Aurora Model Investigation with Sensitivity Studies and Using Different Simulation Methods
(Master thesis, 2022)The Norwegian "Longship" full-scale carbon capture and storage (CCS) project was defined over the Norwegian Continental Shelf (NCS) following the successful Sleipner CO2 storage operation. The Northern Lights project is ... -
Norwegian Continental Shelf Petroleum Pipe-It Integrator & Production Forecaster
(Master thesis, 2012)This thesis summarizes and concludes my master thesis research work. The main objective of this research was to develop a rigorous and generic forecast model for all the fields on the Norwegian Continental Shelf based on ... -
Norwegian Design Principle for High Pressure Tunnels and Shafts: Its Applicability in the Himalaya
(Journal article; Peer reviewed, 2014)Cost effective, safe and long term sustainable hydropower development is a key for the lasting economic growth in the Himalayan region. Increasing pressure towards the use of renewal and environmentally friendly energy for ... -
Norwegian oil and gas storage in rock caverns - Technology based on experience from hydropower development
(Peer reviewed; Journal article, 2021)Underground storage in rock caverns is widely used in Norway for many different petroleum products, such as crude oil, fuel, propane and butane. Basically, the caverns for such storages are unlined, i.e. containment is ... -
Norwegian value creation beyond oil and gas: Strategic opportunities in sustainable Norwegian energy production to secure European energy supplies
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:210, Doctoral thesis, 2009) -
Notes on Ordovician graptolites, nautiloides and trace fossils from Lånke, Central Norwegian Caledonides
(Journal article; Peer reviewed, 2020)Graptolites and trace fossils typical of deep-water environments are found on phyllitic roofing slates kept in the collections of the Stjørdal Museum Værnes, Trøndelag. The slates probably come from abandoned local quarries ... -
Novel reagent system in metal sulphide flotation
(Doctoral theses at NTNU;2020:214, Doctoral thesis, 2020) -
A novel solution for plugging of subsea wells
(Master thesis, 2016)In recent years, Statoil and other operators on the Norwegian continental shelf (NCS) have publicly announced the need for innovation and new solutions that can improve the efficiency, and reduce the cost of plugging and ... -
A novel wellbore strengthening method by using rotary jet while drilling
(Journal article, 2020)Lost circulation is one of the most common and costly problems in drilling operations. Improving the wellbore strengthening by plugging drilling induced fractures using rotary jet method is a novel and effective method to ... -
Numerical analysis of mixed-mode rupture propagation of faults in reservoir-caprock system in CO2 storage
(Journal article, 2018)Injection-induced seismicity and caprock integrity are among the most important concerns in CO2 storage operations. Understanding and minimizing fault/fracture reactivation in the first place, and rupture growth/propagation ... -
Numerical analysis of stresses and displacements for the Tafjord slide, Norway
(Journal article; Peer reviewed, 2006)Numerical modelling has been used for analyzing stresses and displacements for the very steep and more than 1,000 m high Heggura rock slope near Tafjord, Norway where a disastrous 3 million m3 rock slide occurred in 1934. ... -
Numerical Modeling and History Matching of Super-Wet Combustion Tube Test
(Master thesis, 2014)A number of laboratory experiments are defined and implemented to reveal the in situ combustion behavior on core samples drilled from heavy oil reservoirs under specifically designed conditions. The accelerating rate ... -
Numerical modeling of direct shear tests of rock joints
(Master thesis, 2023)Numerisk modellering spiller en stadig større rolle i felt innenfor ingeniørgeologi. For modelleringens bruk i forskning knyttet til konkrete aspekter for bergmekanikk, er sprekkdeformasjon når utsatt for normal- og ...