Browsing NTNU Open by Author "Dupuy, Bastien"
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Artificial Intelligence for Well Integrity Monitoring Based on EM Data
Hosseini, Seyed Ehsan; Zonetti, Simone; Romdhane, Mohamed Anouar; Dupuy, Bastien; Arntsen, Børge (Chapter, 2021)Monitoring of integrity of plugged and abandoned (P&A'ed) wells is of interest for the oil and gas industry and for CO2 storage. The purpose of this study is to develop artificial intelligence (AI)-based approaches to ... -
Carbon Dioxide Saturation Estimates at Sleipner Using Seismic Imaging and Rock Physics Inversion
Dupuy, Bastien; Romdhane, Anouar; Eliasson, Peder; Yan, Hong; Torres Caceres, Veronica Alejandra; Querendez, Etor; Ghaderi, Amir (Chapter; Peer reviewed, 2017)We present an integrated approach combining Full-Waveform Inversion and rock physics inversion to estimate CO2 saturation at Sleipner. Acoustic FWI provides high-resolution P-wave velocity images where the uncertainty is ... -
CO2 saturation estimates at Sleipner (North Sea) from seismic tomography and rock physics inversion
Yan, Hong; Dupuy, Bastien; Romdhane, Mohamed Anouar; Arntsen, Børge (Journal article; Peer reviewed, 2018)CO2 saturations are estimated at Sleipner using a two‐step imaging workflow. The workflow combines seismic tomography (full‐waveform inversion) and rock physics inversion and is applied to a two‐dimensional seismic line ... -
Combined geophysical and rock physics workflow for quantitative CO2 monitoring
Dupuy, Bastien; Romdhane, Anouar; Eliasson, Peder; Yan, Hong (Peer reviewed; Journal article, 2021)Safe CO2 storage requires conformance verification, i.e. confirmation that the pressure and CO2 accumulation are consistent with modelling forecasts within a given uncertainty range. Quantitative estimates of relevant ... -
Constrained AVO for CO2 storage monitoring at Sleipner
Dupuy, Bastien; Torres, Verónica A.; Ghaderi, Amir; Querendez, Etor; Mezyk, Milosz (Journal article; Peer reviewed, 2017)A feasibility study of inverting for CO2 elastic properties using a model based AVO inversion is carried out. We use principal component analysis on a set of PP reflection coefficients to calculate an optimal basis function ... -
Effect of anelastic patchy saturated sand layers on the reflection and transmission responses of a periodically layered medium
Dupuy, Bastien; Stovas, Alexey (Journal article; Peer reviewed, 2016)Based on analytic relations, we compute the reflection and transmission responses of a periodically layered medium with a stack of elastic shales and partially saturated sands. The sand layers are considered anelastic ... -
Estimation of rock physics properties from seismic attributes - Part 1: Strategy and sensitivity analysis
Dupuy, Bastien; Garambois, Stéphane; Virieux, Jean (Journal article; Peer reviewed, 2016)The quantitative estimation of rock physics properties is of great importance in any reservoir characterization. We have studied the sensitivity of such poroelastic rock physics properties to various seismic viscoelastic ... -
Estimation of rock physics properties from seismic attributes - Part 2: Applications
Dupuy, Bastien; Garambois, Stéphane; Asnaashari, Amir; Balhareth, Hadi Mohammed; Landrø, Martin; Stovas, Alexey; Virieux, Jean (Journal article; Peer reviewed, 2016)The estimation of quantitative rock physics properties is of great importance for reservoir characterization and monitoring in CO2CO2 storage or enhanced oil recovery as an example. We have combined the high-resolution ... -
Joint Rock Physics Inversion of Seismic and Electromagnetic Data for CO2 Monitoring at Sleipner
Adi Subagjo, Isa (Master thesis, 2018)The Carbon Capture and Storage project that is taking place at the Sleipner field involving the injection of CO2 into Utsira sandstone reservoir at 1012 m below sea level. The migration of CO2 must be monitored to understand ... -
Offset dependence of overburden time-shifts from ultrasonic data
Bakk, Audun; Holt, Rune Martin; Bauer, Andreas; Dupuy, Bastien; Romdhane, Mohamed Anouar (Journal article; Peer reviewed, 2020)Depletion or injection into a reservoir implies stress changes and strains in the reservoir and its surroundings. This may lead to measurable time-shifts for seismic waves propagating in the subsurface. To better understand ... -
Offset-Dependent Overburden Time-Shifts from Ultrasonic Data
Bakk, Audun; Holt, Rune Martin; Bauer, Andreas; Dupuy, Bastien; Romdhane, Mohamed Anouar (Chapter, 2019)Depletion or injection into a reservoir implies stress and strain changes in the reservoir and its surroundings. This may lead to measurable time-shifts for seismic waves propagating in the subsurface. We have measured ... -
Quantitative seismic characterisation of CO2 at the Sleipner storage site, North Sea
Dupuy, Bastien; Romdhane, Anouar; Eliasson, Peder; Querendez, Etor; Yan, Hong; Torres Caceres, Veronica Alejandra; Ghaderi, Amir (Journal article; Peer reviewed, 2017)Reliable quantification of carbon dioxide (CO2CO2) properties and saturation is crucial in the monitoring of CO2CO2 underground storage projects. We have focused on quantitative seismic characterization of CO2CO2 at the ... -
Rock physics inversion for CO2 characterization at Sleipner
Yan, Hong (Master thesis, 2017)We combine Full-Waveform Inversion (FWI) and rock physics inversion to provide quantitative estimates of CO2 saturation at Sleipner. The rock physics tool is based on uniform saturation and patchy saturation rock physics ... -
Rock Physics Inversion for CO2 Saturation Estimation at Sleipner - Sensitivity Tests and Baseline Application
Yan, Hong; Dupuy, Bastien; Romdhane, Anouar; Arntsen, Børge (Chapter, 2017)We demonstrate the use of rock physics inversion for estimating CO2 saturation and rock frame properties at the Sleipner CO2 storage pilot in the North Sea. We investigate the relation between rock physics properties and ... -
Seismic Wave Attenuation in Partially Saturated Sandstone and AVO Analysis for Carbon Dioxide Quantification at Sleipner
Torres Caceres, Veronica Alejandra (Master thesis, 2017)Sleipner field (North Sea) is the first largest CO2 storage site, where the Carbon Dioxide is reinjected into the Utsira Sandstone. The main aim of this work is to obtain an estimate of the CO2 saturation by using AVO ... -
Tuning and Partial Saturation Effects on Reflection Responses at Sleipner Field
Torres Caceres, Veronica Alejandra; Dupuy, Bastien; Stovas, Alexey (Chapter, 2017)Calculating the normal incidence reflection responses of a stack of layers representing Utsira reservoir, we show that the seismic amplitudes are strongly affected by the partial saturation of CO2 and brine in the high ...