Browsing NTNU Open by Author "Duffaut, Kenneth"
Now showing items 1-20 of 45
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3D Analysis of Temperature and Heat flow in Steady State Approximation in the Halten Terrace
Hovda, Trine (Master thesis, 2015)Thermal effects and heat flow distribution are of major interest as they affect the petroleum system in a sedimentary basin. Heat controls the maturation and generation of hydrocarbons as well as the reservoir quality. ... -
An evaluation of tectonostratigraphy and hydrocarbon potential of the Ellingråsa Graben, Halten Terrace, offshore Mid-Norway
Blilie, Kristin (Master thesis, 2019)Ellingråsa Graben er en grabenstruktur lokalisert i den umiddelbare hengblokken til Bremstein Forkastningskompleks (BFC), i Norskehavet, 65°N. De første letebrønnene i Norskehavet ble boret og funnet tørre på denne strukturen, ... -
An integrative modelling of the Vøring Basin to understand the observed temperature anomalies
Chernyshova, Alena (Master thesis, 2019)Letebrønner i Vøringbassenget avslører svært varierende termisk profil. Høye temperatur- og varmestrømavvik er oppdaget på Gjallarryggen, Grønøyhøyden og i Vestfjordenbassenget, mens observerte temperaturer på Utgardhøyden ... -
Automated Log Data Analytics Workflow – The Value of Data Access and Management to Reduced Turnaround Time for Log Analysis
Torres Caceres, Veronica Alejandra; Duffaut, Kenneth; Westad, Frank Ove; Stovas, Alexey; Johansen, Yngve Bolstad; Jenssen, Arne Johannes Kaaijk (Peer reviewed; Journal article, 2022)The oil and gas industry of today is undergoing rapid digitalization. This implies a massive effort to transform standard work procedures and workflows into more efficient practices and implementations using machine learning ... -
Automated well log depth matching: Late fusion multimodal deep learning
Torres Caceres, Veronica Alejandra; Duffaut, Kenneth; Yazidi, Anis; Westad, Frank Ove; Johansen, Yngve Bolstad (Peer reviewed; Journal article, 2022)Petrophysical interpretation and optimal correlation extraction of different measurements require accurate well log depth matching. We have developed a supervised multimodal machine learning alternative for the task of ... -
Automated Well-Log Depth Matching – 1D Convolutional Neural Networks Vs. Classic Cross Correlation
Torres Caceres, Veronica Alejandra; Duffaut, Kenneth; Yazidi, Anis; Westad, Frank Ove; Johansen, Yngve Bolstad (Peer reviewed; Journal article, 2022)During drilling and logging, depth alignment of well logs acquired in the same borehole section at different times is a vital preprocessing step before any petrophysical analysis. Depth alignment requires high precision ... -
Burial induced changes in physical sandstone properties: A case-study of North Sea and Norwegian Sea sandstone formations
Blazevic V., Lara A.; Duffaut, Kenneth; Avseth, Per Åge (Journal article; Peer reviewed, 2017)The changes in physical properties of sandstones with burial depth are a result of mechanical and chemical compaction processes. These processes are affected by rock microstructure, pressure regimes and temperature history. ... -
Contribution of Rock Physics Laboratory Tests and Modelling to Improving Uplift Estimates
Torset, Sondre; Duffaut, Kenneth; Holt, Rune Martin (Journal article; Peer reviewed, 2018)Most currently applied procedures for uplift estimation rely on assumptions that porosity and seismic / log measured velocity are unaltered by the uplift process. Laboratory experiments have been performed with synthetic ... -
Contribution of Rock Physics Laboratory Tests and Modelling to Improving Uplift Estimates
Torset, Sondre; Duffaut, Kenneth; Holt, Rune Martin (Chapter, 2018)Most currently applied procedures for uplift estimation rely on assumptions that porosity and seismic / log measured velocity are unaltered by the uplift process. Laboratory experiments have been performed with synthetic ... -
Diving-wave time-lapse delay for CO2 thin layer detection
Martinez Guzman, Ricardo Jose; Vinje, Vetle; Stovas, Alexei; Mispel, Joachim; Ringrose, Philip Stefan; Duffaut, Kenneth; Landrø, Martin (Peer reviewed; Journal article, 2024)We have derived an analytical approximate expression to estimate the delay in diving seismic waves due to thin layers of CO2. The expression is valid for high frequencies and can be used to estimate the delay in diving ... -
Elastic anisotropy prediction using wellbore velocity measurements
Naghiyev, Rashad (Master thesis, 2022)Hver dag utvikler verden seg, nye kunnskap, nye synspunkter introduseres. Utvikling av eksiterende teknikker for å forbedre leting, produksjon og oppdagelse av energikilder er sentalt for industrien. For disse formålene ... -
Enhanced lithological description of the Jurassic sequence in the Viking Graben and Oseberg Terrace using machine learning
Bøe, Harald Wie (Master thesis, 2018)Automatic classifications of well logs using machine learning techniques has gained improved attention within the last couple of years among others for increasing the accuracy and speed of lithofacies prediction on wireline ... -
Estimating Horizontal Resistivity Trends in Sedimentary Rocks: A Case Example from the Northern North Sea
Duffaut, Kenneth; Wang, Ying; Nordskag, Janniche Iren (Journal article; Peer reviewed, 2018)Understanding the major controlling factors on the horizontal resistivity-depth trends of sedimentary rocks in any given basin around the world are interesting from both scientific and commercial perspectives. Hence, we ... -
Estimating Net Erosion in the Western Barents Sea
Elks, Richard Anthony (Master thesis, 2016)Quantification of uplift and erosion in the western Barents Sea has been a relevant and challenging problem for geoscientists for several decades. Uplift and erosion processes have implications for petroleum prospectivity, ... -
Estimation of Anisotropy Parameters and AVO modeling of the Troll Field, North Sea
Haktorson, Hilde (Master thesis, 2012)In the work of this Master's thesis, the anisotropy parameters, epsilon and delta, for the reservoir and the cap rock on the Troll Field have been estimated. This was done using well logs from 35 wells, including the P-wave ... -
Estimation of Barents Sea uplift by comparison of linear trend lines from well log properties
Erichsen, Stian Werner (Master thesis, 2017)Linear trends of measured well log properties have been compared in this thesis, to see if uplift in the Barents Sea can be estimated. Reference trends from areas that have not been uplifted, wells 15/9-6, 34/7-1, 34/7-5 ... -
Estimation of Timeshifts and Velocity Changes from 4D Seismic Analysis: A Case Study from the Norne Field
Erichsen, Lene Lykke (Master thesis, 2018)The scope of this thesis is to investigate whether it is possible to determine the vertical strain in the overburden directly from the 4D seismic data from the Norne field in the Norwegian sea, by using changes in traveltime ... -
Evaluation of N/G distribution of the Tofte Formation in the Smørbukk Field through AVO attribute inversion with a focus on anisotropy and tuning effects
Johannessen, Oda Marie (Master thesis, 2019)Tofte-formasjonen i Smørbukk-feltet er svært kompleks med store laterale variasjoner i N/G-fordeling. På grunn av formasjonens dyp har seismiske datasett lav oppløsning, og amplituderesponsen til formasjonen lider derfor ... -
Generative Adversarial Networks for Seismic Interpretation
Huso, Erik Arne (Master thesis, 2020)Arbeidsprosesser der tolkning av seismikk inngår, er en nødvendig del av prosjekter der olje- og gassforekomster oppdages. Selv om nylige fremskritt i forskningen rundt dyp læring har gjort det mulig å forenkle noe av ... -
Giant paleo-seafloor craters and mass wasting associated with magma-induced uplift of the upper crust
Omosanya, Kamaldeen Olakunle Leif; Duffaut, Kenneth; Alves, T.M; Eruteya, O.E.; Johansen, Ståle Emil; Waldmann, N. (Peer reviewed; Journal article, 2022)Giant seafloor craters are known along many a continental margin with recurrent mass-wasting deposits. However, the impact of breakup-related magmatism on the evolution of such craters is barely understood. Using high-quality ...