Blar i Institutt for geovitenskap og petroleum på tittel
Viser treff 1513-1532 av 2540
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Multiphase structural evolution and geodynamic implications of Messinian salt-related structures, Levant Basin, offshore Israel
(Journal article; Peer reviewed, 2018)Speculations surround salt deformation in the Mediterranean Basins, both related to the deformation history and the triggers for halokinesis since the onset of the Messinian Salinity Crisis (MSC). This work presents a ... -
Multiple rock-slope failures from Mannen in Romsdal Valley, western Norway, revealed from Quaternary geological mapping and 10Be exposure dating
(Journal article; Peer reviewed, 2018)Oversteepened valley walls in western Norway have high recurrences of Holocene rock-slope failure activity causing significant risk to communities and infrastructure. Deposits from six to nine catastrophic rock-slope failure ... -
Multiscalar Structural Study of the Brittle Deformation History in the Åna-Sira Anorthosite massif, Rogaland, Southwestern Norway
(Master thesis, 2017)The c. 930 Ma Åna-Sira anorthosite massif (ÅS) is a part of the Rogaland Anorthosite Province, situated in the county of Sokndal, Rogaland. In this thesis, multiscalar efforts are aimed at unraveling the spatial and temporal ... -
Multiscale 3D Analysis of Silicate- Hosted Magnetic Inclusions
(Doctoral theses at NTNU;2022:256, Doctoral thesis, 2022) -
Multistep Parametric Inversion of Scanning Magnetic Microscopy Data for Modeling Magnetization of Multidomain Magnetite
(Peer reviewed; Journal article, 2019)Development in instrumentation and technology now allows for mapping of magnetic anomalies, caused by spatial variations in magnetization in the source material, from the mineral to the crustal anomalies scale. High-resolution ... -
MyI-Net: Fully Automatic Detection and Quantification of Myocardial Infarction from Cardiovascular MRI Images
(Peer reviewed; Journal article, 2023)Myocardial infarction (MI) occurs when an artery supplying blood to the heart is abruptly occluded. The “gold standard” method for imaging MI is cardiovascular magnetic resonance imaging (MRI) with intravenously administered ... -
Nano-Enabled Cement System for Well Cementing
(Doctoral theses at NTNU;2017:213, Doctoral thesis, 2017)The main goal of primary cementing is to provide zonal isolation in oil and gas wells. In general, the failure of the cement sheath to maintain long-term zonal isolation is due to: Low tensile properties ... -
Nanoparticle effect on Interfacial Properties related to Enhanced Oil Recovery
(Master thesis, 2015)This thesis takes a look at what has been done before with nanoparticles in EOR, and then experimentally investigates the effect of nanoparticles on fluid properties, in particular interfacial tension and wettability. The ... -
Nanorubber-modified cement system for oil and gas well cementing application
(Journal article, 2017)Flexible cement systems with low shrinkage are more capable than the conventional cement systems to withstand the tensile stresses generated by fluctuation of temperature and pressure in oil and gas wells. In this work ... -
Nanosized Magnesium Oxide With Engineered Expansive Property for Enhanced Cement-System Performance
(Journal article, 2017)The bulk shrinkage of cement sheaths in oil wells can result in loss of long-term zonal isolation. Expansive additives are used to mitigate bulk shrinkage. To compensate effectively for bulk shrinkage during the late plastic ... -
Near-surface temperatures and potential for frost weathering in blockfields in Norway and Svalbard
(Peer reviewed; Journal article, 2023)Blockfields remain enigmatic regarding their origin, internal structure, surface processes, and glaciological implications. In Scandinavia, blockfields are found on high-elevation, low-relief mountains (plateaus) across ... -
Net exhumation estimation from seismic traveltimes and burial history modelling in the Western Barents Sea.
(Master thesis, 2018)A new seismically based technique is proposed for the estimation of net exhumation magnitudes in sedimentary basin areas. The method uses traveltimes mapped from well log data or pre-stack seismic data, starting from the ... -
Net Exhumation Estimation Using an Effective-medium Technique Based On Seismic Traveltime Measurements
(Chapter, 2018)We propose a new seismically based technique for estimating net exhumation magnitudes on sedimentary basin areas. The method uses traveltime measurements mapped from e.g. seismic data, or ray traced well log data, starting ... -
Network-Constrained Production Optimization by Means of Multiple Shooting
(Journal article; Peer reviewed, 2019)A methodology is proposed for the production optimization of oil reservoirs constrained by gathering systems. Because of differences in scale and simulation tools, production optimization involving oil reservoirs and ... -
A new approach for real-time prediction of stick–slip vibrations enhancement using model agnostic and supervised machine learning: a case study of Norwegian continental shelf
(Journal article; Peer reviewed, 2023)Efficient and safe drilling operations require real-time identification and mitigation of downhole vibrations like stick-slip, which can significantly diminish performance, reliability, and efficiency. This pioneering ... -
New insights into submarine tailing disposal for a reduced environmental footprint: Lessons learnt from Norwegian fjords
(Peer reviewed; Journal article, 2022)Submarine tailing disposal (STD) in fjords from land-based mines is common practice in Norway and takes place in other regions worldwide. We synthesize the results of a multidisciplinary programme on environmental impacts ... -
New interpretation of the spreading evolution of the Knipovich Ridge derived from aeromagnetic data
(Peer reviewed; Journal article, 2021)Insights into the spreading evolution of the Knipovich Ridge and development of the Fram Strait are revealed from a recent aeromagnetic survey. As an ultraslow spreading ridge in an oblique system located between the ... -
A New Method for Predicting the Crack Propagation Process of Brittle Rock under Thermo-Hydro-Mechanical Loading Conditions
(Peer reviewed; Journal article, 2021)Prediction on the crack propagation process of brittle rock under Thermo-Hydro-Mechanical (THM) loading conditions is very important for crack-arrest design and disaster prevention in deep rock engineering. Although currently ... -
Next generation geophysical sensing: exploring a new wave of geophysical technologies for the energy transition
(Peer reviewed; Journal article, 2021) -
Next Generation Subsea Inspection, Maintenance and Repair Operations
(Peer reviewed; Journal article, 2016)This paper presents the latest developments in the project Next Generation Subsea Inspection, Maintenance and Repair (IMR). Subsea IMR operations are frequently carried out in the offshore oil and gas business. Increased ...