Blar i Institutt for geovitenskap og petroleum på tittel
Viser treff 1581-1600 av 2583
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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 investigation of wellbore damage due to drill string lateral vibration
(Journal article; Peer reviewed, 2024)During drilling operations, cyclic loading is exerted on the wellbore wall by the vibrations of the drill string. This loading could lead to rock fatigue, which in turn might result in wellbore failure. In this study, a ... -
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 a potential CO2-supplied enhanced geothermal system (CO2-EGS) in the Åsgard field, Norway
(Journal article, 2024)The principle of Enhanced Geothermal System (EGS) technology is that water injected at a sufficiently high pressure will lead to the fracturing of naturally impermeable rocks, and as a result, this will create hydraulic ... -
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 ... -
Numerical modeling of fracture initiation using plasticity models
(Master thesis, 2018)Nowadays hydraulic fracturing is a key part of the oil and gas industry to enhance the field's production. Therefore, is important to understand how fractures initiate and how to extract important information from them for ... -
Numerical Modeling of Radial Fracturing of Cement Sheath Caused by Pressure Tests
(Chapter, 2019)To achieve an acceptable level of zonal isolation, well integrity should be guaranteed in hydrocarbon production and geological CO2 sequestration. Well pressure test can cause different types of failures in the well system ... -
Numerical Modeling of the Underground Machine Halls in Tala and Chukha Hydropower Plants
(Master thesis, 2013)The Kingdom of Bhutan is part of South Asia. It is located at the eastern end of the Himalayas, encircled by India in the south, east, west, and China in the North. A major part of the electricity consumed in Bhutan ... -
Numerical modelling of Bingham fluid flow and particle transport in a rough-walled fracture
(Master thesis, 2013)Drilling operations may encounter mud loss which becomes especially aggravated in naturally fractured formations. The dynamics of fluid loss is a complex process, affected by both the rheology and the composition of the ... -
Numerical modelling of crack initiation and propagation in rocks using the XFEM
(Master thesis, 2022)Denne masteroppgaven fokuserer på numerisk modellering av sprekkevekst i et bergartslignende materiale under enaksielt trykk ved å bruke den utvidete endelige element metoden (XFEM). Todimensjonale prøvestykker som inneholder ... -
Numerical Modelling of Liquid-Rich Shale Wells: GOR Oscillations in Highly Undersaturated Fluids
(Master thesis, 2020)The unconventional petroleum resources have attracted significant attention throughout recent years. These resources are estimated to have reserves greater than those of conventional ones. Increasing energy demands and ... -
Numerical modelling of the effect of waterflooding and surfactant injection in a matrix-fracture system
(Master thesis, 2015)Naturally fractured reservoirs in carbonate rocks usually contain more residual oil in the matrix than other reservoirs, due to the high permeability fracture zones that carries the flooded fluids, leaving parts of the ... -
Numerical modelling of the longwall mining and the stress state in Svea Nord Coal Mine
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:349, Doctoral thesis, 2012)This thesis presents numerical and analytical investigation of the geomechanics underlying longwall mining. It was tried out to study the disturbances induced by longwall mining in nearby rocks and their influence on the ... -
Numerical Modelling of the Stress Field and Failure Behaviour of Grouted Rocks
(Master thesis, 2021)Denne masteroppgaven undersøkte den forsterkende effekten fra injeksjon av bergprøvestykker som inneholder åpne sprekker av varierende lengde og fallvinkel, gjennom numerisk modellering. Til dette formålet ble to- og ... -
Numerical Modelling to Evaluate the Impact of Paleo-Bathymetry and Basin-Fill Processes on Source Rock Distribution in the Hammerfest Basin, Barents Sea
(Master thesis, 2017)In basin and petroleum system modelling, the paleo-bathymetry and distribution of organic matter within the source rock are important properties yet they are uncertain and are often be considered as constant or homogeneous. ... -
Numerical Simulation of an Ekofisk Single Well Chemical Tracer Test
(Master thesis, 2014)The Ekofisk field in the North Sea has been undergoing waterflood since 1987. It has proved to efficiently recover oil by means of spontaneous imbibition. The plan is to continue waterflooding until the end of the license ... -
Numerical Simulation of Extended Leak-Off Tests
(Master thesis, 2014)In-situ stresses are key information for well and formation integrity assessments, especially in difficult drilling operations such as high pressure high temperature wells, extended reach wells and in-fill drilling. During ... -
Numerical Simulation of Fracture Geomechanics: Geothermal, CCS and Petroleum applications
(Doctoral theses at NTNU;2019:370, Doctoral thesis, 2019) -
Numerical Simulation of Gas Coning of a Single Well Radial in a Naturally Fractured Reservoir
(Master thesis, 2012)Gas coning is the tendency of the gas to drive oil downward in an inverse cone due to the downward movement of gas into the perforations of a producing well thereby reducing oil production and the overall recovery efficiency ... -
Numerical Simulation of Low Salinity Water Flooding Assisted with Chemical Flooding for Enhanced Oil Recovery
(Master thesis, 2012)World proved oil reserve gradually decreases due to the increase production but decrease new field discovery. The focus on enhance oil recovery from the existing fields has become more interesting in the recent years. Since ...