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Isabelle Lecomte

Associate Professor, Reservoir Geophysics
  • E-mailIsabelle.Lecomte@uib.no
  • Phone+47 55 58 34 17+47 909 12 911
  • Visitor Address
    Realfagbygget, Allégt. 41
    Room 
    2A16b - 2114
  • Postal Address
    Postboks 7803
    5020 Bergen

RESEARCH INTERESTS

Seismic modelling and imaging with application to petroleum/reservoir and near-surface geophysics, including finite-difference wavefield simulation, Eikonal solver (first-arrival traveltimes), tomography, generalized diffraction tomography, imaging/inversion in seismology and seismics, hybrid modelling ray-tracing/finite-difference, refraction seismic modelling, seismic resolution, SAR techniques applied to seismic imaging, simulated prestack imaging using resolution functions, imaging in other domains (GPR, etc), CO2 and geothermal site assessments, near-surface geophysics, geohazards, and E-learning.

Research work involving both theoretical studies and method developments (especially within seismic modelling and imaging in relation to O&G applications, but also for near-surface applications with eikonal solver for seismic refraction and tomography), and field work with students and for ICG-related projects (2005-2012) or others.

 

SELECTED PROJECTS

  • 2017-2020: project leader for UiB/GEO participation in “Forecasting of architecture, seismic characteristics and flow behaviour in paleokarst reservoirs - FOPAK”, NFR Petromaks2 project 267634, led by NORCE/CIPR, Jan Tveranger project leader.
     
  • 2014-2018: project leader for NORSAR participation in the UiO “TriasNorth: Reconstructing the Triassic northern Barents Shelf; basin infill patterns controlled by gentle sags and faults”, NFR Petromaks project 234152.
     
  • 2008-2010: Project leader of the NORSAR Innovation AS “Fast Elastic Inversion of Multi-offset Prestack Depth Migrated Seismic Data”, NFR Petromaks project 187318, in cooperation with the Norwegian Computing Center, O. Kolbjørnsen and colleagues, and ConocoPhillips and Statoil.
     
  • 2007-2009: Project leader and grant owner of the NORSAR Strategic Institute Program “Flexible local seismic imaging in an integrated dynamic modelling framework”, NFR project 181688.
     
  • 2003-2012: Guest researcher in the International Center for Geohazards (ICG), NFR-funded Norwegian Research Centre of Excellence (SFF), in cooperation with NGI, NGU, UiO and NTNU. Theme coordinator for “Geophysics for Geohazards”.

 

EDUCATION

1990 PhD Geophysics: Disputation date: 18.12.1990.

Université Louis Pasteur, Strasbourg 1, France.

1988 Civ. Eng. Geophysics

Ecole de Physique du Globe de Strasbourg, France.

1987 M.Sc. Geophysics

Université Louis Pasteur, Strasbourg 1, France.

 

CURRENT AND PREVIOUS POSITIONS

2016-present Associate Professor, Reservoir Geophysics

Department of Earth Science, University of Bergen (UiB), Norway

2016-present Visiting Associate Professor, Seismic Modelling

NORSAR, Kjeller, Norway

2016/(01-06) Associate Professor (adjunct), Reservoir Geophysics

Department of Earth Science, University of Bergen (UiB), Norway

2012-2016 Associate Professor (adjunct), Near-Surface Geophysics

Department of Geosciences, University of Oslo (UiO), Norway

1993-2016 Principal Research Geophysicist, Seismic Modelling

NORSAR, Kjeller, Norway

 

FELLOWSHIPS AND AWARDS

2014 Norwegian Geophysical Award, Norwegian Petroleum Society.

2001 Best Paper award, Geophysical Prospecting, EAGE.

1992 NTNF Postdoctoral fellowship, NORSAR, Kjeller, Norway.

1991 EU Postdoctoral fellowship, NORSAR, Kjeller, Norway.

1988-1990 PhD grant, IFREMER, Brest/Strasbourg, France.

1988 NATO Scientific Division, Young Researcher, Summer School, Les Houches, France.

University of Bergen - UiB                                                                                                                            

  • GEOV111, “Geofysiske Metodar”, responsible teacher from 2018 - 2017-present
  • Lectures in GEOV272 (2016-present), PTEK100 (2016-present), Spain field course for geophysicists (2017)                

University of Oslo - UiO                                                                                                                                 

  • GEO4120, “Environmental Geophysics”, responsible teacher - 2012-2016
  • GEO4260, “Reservoir Geophysics”, responsible teacher - 2015
  • GF281, “Inverse metoder”, responsible teacher - 1995
  • Lectures in GEO4170 (2012), GEO4171 (2013), GEO4360 (2012-2014), GEO4620 (2013), GEO4181 (2015-2016), GEO4240 (2016-2017)                                                                                                  

University Centre of Svalbard - UNIS                                                                                                                   

  • AG222, “Integrated Geological Methods: from Outcrop to Geomodel” - 2018-present
  • AG335, “Arctic Seismic Exploration”, lectures in micro-seismicity, seismic modelling and GPR - 2015, 2017

SVALEX - multidisciplinary integration of students, Norwegian Universities (UiO, UiB, NTNU, UiT, UiS and UNIS)                                                                                                                                                         

  • Lectures/demos in near-surface geophysics and participation to petroleum-related student exercises - 2005-2009

Scopus author

Google Scholar

Academic article
  • 2020. Using digital outcrops to make the high Arctic more accessible through the Svalbox database. Journal of Geoscience Education (JGE). 1-16.
  • 2020. Seismic expression of shear zones: Insights from 2-D point-spread-function-based convolution modelling. Journal of Structural Geology.
  • 2020. Efficient and flexible characterization of paleokarst seismic signatures using point-spread function-based convolution modeling. SEG technical program expanded abstracts.
  • 2019. Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage. Norwegian Journal of Geology. 329-347.
  • 2019. Seismic imaging of complex geometry: Forward modeling of sandstone intrusions. Earth and Planetary Science Letters. 51-63.
  • 2019. Novel seismic forward modelling of the seal bypass structure: An example from the Loyal Field of the North Sea (Scotland, UK). SEG technical program expanded abstracts. 2054-2058.
  • 2018. Seismic interpretation of sill complexes in sedimentary basins: Implications for the sub-sill imaging problem. Journal of the Geological Society. 193-209.
  • 2018. Integrating facies-based Bayesian inversion and supervised machine learning for petro-facies characterization in the Snadd Formation of the Goliat Field, south-western Barents Sea. Geophysical Prospecting. 1020-1039.
  • 2018. From field analogues to realistic seismic modelling: a case study of an oil-producing andesitic sill complex in the Neuquén Basin, Argentina. Journal of the Geological Society. 580-593.
  • 2018. CO2 storage in the high Arctic: efficient modelling of pre-stack depth-migrated seismic sections for survey planning. Geophysical Prospecting. 1180-1200.
  • 2018. Analyzing PSDM images in complex geology via ray-based PSF-convolution modeling. SEG technical program expanded abstracts. 3843-3847.
  • 2017. Seismic modelling: 4D capabilities for CO2 injection. Energy Procedia. 3432-3444.
  • 2017. Prestack simultaneous inversion to predict lithology and pore fluid in the Realgrunnen Subgroup of the Goliat Field, southwestern Barents Sea. Interpretation. SE75-SE96.
  • 2017. Prestack inversion and multiattribute analysis for porosity, shale volume, and sand probability in the Havert Formation of the Goliat field, southwest Barents Sea. Interpretation. SL69-SL87.
  • 2017. 3D structure and formation of hydrothermal vent complexes at the paleocene-eocene transition, the Møre basin, MID-Norwegian margin. Interpretation. SK65-SK81.
  • 2016. The impact of faults and fluid flow on seismic images of a relay ramp over production time. Petroleum Geoscience. 17-28.
  • 2016. Synthetic seismic illumination of small-scale growth faults, paralic deposits and low-angle clinoforms: A case study of the Triassic successions on Edgeøya, NW Barents Shelf. Marine and Petroleum Geology. 625-639.
  • 2016. Seismic characterisation of fault damage in 3D using mechanical and seismic modelling. Marine and Petroleum Geology. 973-990.
  • 2016. Prestack inversion for porosity, shale volume and sand probability in the Havert Formation of the Goliat field, SW Barents Sea. SEG technical program expanded abstracts. 3543-3547.
  • 2016. 2(3)D convolution modelling of complex geological targets – beyond 1D convolution. First Break. 99-107.
  • 2015. Ray-based seismic modeling of geologic models: Understanding and analyzing seismic images efficiently. Interpretation. SAC71-SAC89.
  • 2015. Joint inversion of seismic and electric data applied to 2D media. Geophysics. EN93-EN104.
  • 2014. On the integrated use of geophysics for quick-clay mapping: The Hvittingfoss case study, Norway. Journal of Applied Geophysics. 1-13.
  • 2014. Monitoring of induced seismicity during the first geothermal reservoir stimulation at Paralana, Australia. Geothermics. 120-131.
  • 2014. From mechanical modeling to seismic imaging of faults: A synthetic workflow to study the impact of faults on seismic. Marine and Petroleum Geology. 187-207.
  • 2013. Towards geophysical and geotechnical integration for quick-clay mapping in Norway. Near Surface Geophysics. 613-623.
  • 2013. On the prediction of settlement from high-resolution shear-wave reflection seismic data: The Trondheim harbour case study, mid Norway. Engineering Geology. 72-83.
  • 2013. Effects of mass-wasting on the stratigraphic architecture of a fjord-valley fill: Correlation of onshore, shear-wave seismic and marine seismic data at Trondheim, Norway. Sedimentary Geology. 1-18.
  • 2012. Shallow Landslides and Their Dynamics in Coastal and Deepwater Environments, Norway. Advances in Natural and Technological Hazards Research. 29-41.
  • 2012. Relationship between electrical resistivity and basic geotechnical parameters for marine clays. Canadian geotechnical journal (Print). 1158-1168.
  • 2012. Microseismic Monitoring of the hydraulic stimulation at the Paralana enhanced geothermal system, South Australia. First Break. 91-95.
  • 2012. Estimation of free gas saturation from seismic reflection surveys by the genetic algorithm inversion of a P-wave attenuation model. Geophysics. R175-R187.
  • 2008. Using geophysics on a terminal moraine damming a glacial lake: the Flatbre debris flow case,Western Norway. Advances in Geosciences. 301-307.
  • 2008. Seismic reservoir characterization: In-cluding sensitivity to the overburden, survey, and reservoir properties when simulating the 3D seismic response to the reservoir. Earth Science Frontiers. 123-132.
  • 2007. Improved applicability of ray tracing in seismic acquisition, imaging, and interpretation. Geophysics. SM261-SM271.
  • 2005. International Centre for Geohazards (ICG): Assessment, prevention and mitigation og geohazards. Norsk Geologisk Tidsskrift. 45-62.
  • 2005. Improving Kirchhoff migration with repeated local plane-wave imaging? A SAR-inspired signal-processing approach. Geophysical Prospecting. 767-785.
  • 2004. Efficient and flexible seismic modeling of reservoirs: A hybrid approach. The Leading Edge. 432-437.
  • 2004. A review of 3D illumination studies. Journal of Seismic Exploration. 17-37.
  • 2003. Local Plane-Wave Imaging of GPR Data. Journal of Environmental & Engineering Geophysics. 115-121.
  • 2002. An approach to combined rock physics and seismic modelling of fluid substitution effects. Geophysical Prospecting. 119-137.
  • 2001. Discussion of J. Chen and G.T. Schuster's paper: Resolution Limits of migrated images. Geophysics.
  • 1993. Finite-Difference Calculation of 1st Travel-Times in Anisotropic Media. Geophysical Journal International. 318-342.
  • 1991. Finite-Difference Computation of Traveltimes in Very Contrasted Velocity Models - a Massively Parallel Approach and Its Associated Tools. Geophysical Journal International. 271-284.
Report
  • 2017. Final project report to KMB project 224880: SafeCO2 II 2013-2016 Investigation of induced seismicity and aseismic deformation in response to CO2 injection and related pressure changes . .
  • 2010. The effect of illumination on source pulse estimation for PSDM seismic data. SAND/10/10. SAND/10/10. .
Lecture
  • 2019. Seismic Signature of Shear Zones: Insights from 2-D PSF-based Convolution Modelling.
  • 2018. 4D seismic simulation using 3D convolution and point-spread functions.
  • 2017. Quantitative Seismic interpretation strategies for petrofacies discrimination within the Triassic: A Goliat Case Study.
  • 2017. Digital outcrop modelling results and workflows for derived synthetic seismic imaging.
  • 2016. Seismic Imaging of Fault Zones: a synthetic workflow to study the impact of faults on seismic images.
  • 2016. Quantitative seismic reservoir characterization within the Realgrunnen Subgroup and the Havert Formation in the Goliat Field, SW Barents Sea.
  • 2015. Understanding and analyzing seismic images: insight through appropriate modelling.
  • 2015. The effect of fluid flow in relay ramps on seismic images.
  • 2015. Seismic modelling: Edgeøya and other illustration cases.
  • 2015. From Geomechanical Modelling to Seismic Imaging of 3D Faults.
  • 2015. 3D photogrammetric modelling of Kvalpynten: background and overview of LIME functionality.
  • 2014. From Geomechanical Modelling to Seismic Imaging of 3D Faults.
  • 2014. From Geomechanical Modelling to Seismic Imaging of 3D Faults.
  • 2013. Mechanical modelling and seismic imaging of fault zones.
  • 2012. Mechanical modelling and seismic imaging of fault zones.
Academic lecture
  • 2021. Exploring extensional fault interpretations from seismic reflection data of various resolution substantiated by seismic modelling.
  • 2020. Virtual field trip to seismic scale outcrops of the Triassic, Edgeøya, Svalbard.
  • 2020. Seismic modelling of faults; viable geometries vs seismic resolution in the subsurface.
  • 2019. Synthetic seismic modelling of fluvial channels in the Blackhawk Formation as an analogue to the Triassic Barents Sea.
  • 2019. Seismic signature of shear zones: insights from 2-D convolution forward modelling .
  • 2019. A modelling workflow for seismic characterization of Paleokarst reservoirs.
  • 2019. A genetic approach for characterizing paleokarst reservoirs.
  • 2018. Seismic Interpretation of Mafic Sill-Complexes in Sedimentary Basins .
  • 2018. Kvartærgeologisk kartlegging av Kallskarskredet, Tafjord, Møre og Romsdal.
  • 2018. Insight through efficient seismic modelling: an extended convolution approach applied to various geological models of carbonate platforms.
  • 2018. Improving seismic interpretation of igneous sill complexes via seismic modelling.
  • 2018. Evaluating the structural control over carbonate platforms developed in syn-rift settings.
  • 2018. A virtual field trip to seismic-scale outcrops of the Triassic, Edgeøya, Svalbard.
  • 2017. Understanding seismic imaging and controls on sill intrusions using lidar data from East Greenland.
  • 2017. Petrofacies characterization using prestack inversion and neural networks within the Snadd Formation of the Goliat Field, SW Barents Sea.
  • 2017. Integrating prestack inversion, machine learning, and forward seismic modelling for petrofacies characterization: A Barents Sea case study.
  • 2016. Virtual outcrops to synthetic seismic modelling.
  • 2016. Three-dimensional Geological Modelling of a Slope-to-basin Carbonate Reservoir Analogue - The Case of the Maiella Mt.
  • 2016. Synthetic seismic modelling of a base-of-slope carbonate system of the Maiella Mt. (Central Italy): new insights for constraining reservoir geometries from outcrop analogues.
  • 2016. Synthetic seismic expression of the onshore Kvalpynten case study: Growth-faults. Low-angle prograding deltaic system.
  • 2016. Prestack Simultaneous Inversion to Predict Lithology in the Realgrunnen Subgroup of the Goliat Field, SW Bareants Sea.
  • 2016. 2D and 3D Synthetic Seismic Modelling of Outcropping Carbonate System of the Maiella Mountain (Central Apennines-Italy).
  • 2015. Understanding and Analysing Seismic Images - Insight through Appropriate Modelling.
  • 2015. Trias North: Late Triassic shallow faulting in Edgeøya, Svalbard; structural style, deformation mechanisms and seismic expression.
  • 2015. State of-the-art of digital outcrop mapping methods: application to the Triassic of Edgeøya, Svalbard.
  • 2015. Focusing in migration-based location of weak microseismicity: modelling point-spread function for resolution analyses.
  • 2014. From mechanical modelling to seismic imaging of faults.
  • 2012. Microseismic monitoring and velocity model building at the Longyearbyen CO2-Lab, Svalbard.
  • 2012. Mechanical modelling and seismic imaging of fault zones.
  • 2009. Shear wave reflection seismic surveying in the Trondheim harbour area - imaging of land slide processes.
  • 2006. Modeling the Seismic Response to Production. A Closer Look at the Sensitivity to Overburden, Survey, Rock Physics Model and Seismic Modeling Approach.
  • 1998. The resolution function in linearized Born and Kirchhoff Inversion.
  • 1998. Have a look at the resolution function of prestack depth migration for any model, survey and wavefields. doi: 10.1190/1.1820082.
  • 1992. Finite-difference traveltimes and reflection seismics: modeling and inversion.
Editorial
  • 2009. Imaging and inversion - Introduction. Geophysics. WCA1-WCA4.
Thesis at a second degree level
  • 2002. Deconvolution of seismic images based on image processing techniques.
Masters thesis
  • 2020. Flow Simulation and Sensitivity Analysis of Paleokarst Carbonate Reservoirs.
  • 2019. Kallskarskredet og påfølgjande tapping av Onilsavatnet – Tafjord, Møre og Romsdal.
  • 2019. From outcrop to synthetic seismic: 2D and 3D modelling of igneous intrusions at Botneheia, central Spitsbergen.
  • 2018. Modelling illumination and resolution effects in seismic with a 2(3)D convolution method.
  • 2018. A Modelling Workflow for Seismic Characterization of Paleokarst Reservoirs.
  • 2017. Controls on architecture and seismic imaging of igneous intrusions: Examples from LIDAR outcrop data on Traill Ø (East Greenland) and seismic data from the conjugate Møre Margin.
  • 2016. Integrated seismic and rock physics modelling of oil-producing volcanic sills in the Neuquén Basin, Argentina.
  • 2009. Modeling by demigration: A feasibility study.
Popular scientific article
  • 2009. Value of illumination-consistent modeling in time-lapse seismic analysis. First Break. 75-83.
Doctoral dissertation
  • 2014. Integrated geophysics for mapping of quick-clay landslide-prone areas in Norway. 1473.
Academic chapter/article/Conference paper
  • 2017. The Impact of Faults and Fluid Flow on Seismic Images of a Relay Ramp over Production Time.
  • 2016. Prestack simultaneous inversion to predict lithology in the Realgrunnen subgroup of the Goliat Field, SW Barents Sea. 5 pages.
  • 2016. From photorealistic outcrop models to synthetic seismic images. 1 pages.
  • 2015. Understanding and analysing seismic images - Insight through appropriate modelling. 5 pages.
  • 2014. The use of geophysics for sensitive clay investigations. 20 pages.
  • 2014. Surface-wave Dispersion Inversion versus SH-wave Refraction Tomography in Saturated and Poorly Dispersive Quick Clays. 5 pages.
  • 2014. Shear-wave Reflection-seismic Pilot Study at the UNIS CO2 Lab site, Longyearbyen, Svalbard. 4 pages.
  • 2014. Geophysical data integration for quick-clay mapping: The Hvittingfoss case study, Norway. 11 pages.
  • 2014. From Geomechanical Modelling to Seismic Imaging of 3D Faults.
  • 2013. Finneidfjord, a Field Laboratory for Integrated Submarine Slope Stability Assessments and Characterization of Landslide-Prone Sediments: A Review.
  • 2013. 2D Spiking Deconvolution Approach to Resolution Enhancement of Prestack Depth Migrated Seismic Images.
  • 2012. The Importance of Coupling Passive and Active Seismic Methods in Geothermal Fields - A Case Study at Paralana, Australia.
  • 2012. Quik-clay landslide-prone grounds in Norway and Sweden: a complex problem requiring a combined geophysical and teotechnical approach.
  • 2012. Quick-clay landslide-prone grounds in Norway and Sweden: a complex problem requiring a combined geophysical and geotechnical approach.
  • 2012. Joint Inversion of Surface-wave Dispersion, P-Wave Refraction and Apparent Resistivity Data.
  • 2012. High-resolution sub-surface geo-characterization from shear-wave seismic reflection profiling: An example from the Trondheim harbour, mid Norway. 10 pages.
  • 2012. Geophysical Investigations of Unstable Mountain Slopes in Jotunheimen, Norway.
  • 2012. Geophysical Investigations of Quick-clay Slide Prone Areas.
  • 2011. Towards Joint Inversion/Interpretation for Landslide-prone Areas in Norway - Integrating Geophysics and Geotechnique.
  • 2011. Shallow Landslides and Their Dynamics in Coastal and Deepwater Environments, Norway. 13 pages.
  • 2011. Impact of Diffraction on Resolution of PSDM. 5 pages.
  • 2010. Improved Ray-based Seismograms by Combining Modeling by Demiration with a Prestack Depth Migration Simulator.
  • 2010. High-resolution SH-wave Seismic Reflection for Characterization on Onshore Ground Conditions in the Trondheim Harbor, Central Norway. 16 pages.
  • 2010. A 3D Ray-based Pulse Estimation for Seismic Inversion of PSDM Data.
  • 2000. The resolution function in linearized Born and Kirchhoff inversion.
  • 1999. The Resolution Function in Prestack Depth Migration.
Poster
  • 2020. Seismic Modelling of Virtual Outcrops: Application of Rock Physics Beyond the Borehole.
  • 2019. Seismic forward modelling of carbonate hosted normal faults.
  • 2019. Optimized CO2 storage in sloping aquifers: Estimation of physical and chemical immobilization potential and retardation along migration path in open storage solutions .
  • 2019. From field observations to seismic modeling: The El Manzano Sill Complex (Argentina) as a showcase of the influence of igneous intrusions on petroleum systems .
  • 2019. Early Cretaceous igneous intrusions in Svalbard: seismic modelling as a link between boreholes, outcrops and seismic data.
  • 2019. Climate control over carbonate platform growth in tectonically active basins.
  • 2018. Synthetic seismic modelling of the platform-to-basin transition in the Maiella Mt. (Central Apennines): an analogue for subsurface Mesozoic carbonate targets.
  • 2018. Seismic Forward Modelling For Seal Bypass Structures Based On Novel PSDM Method.
  • 2018. Evaluating the structural control over carbonate platforms developed in syn-rift settings using stratigraphic and seismic forward models.
  • 2017. Seismic Forward Modeling of Fluid Escape Pipes Based on Novel PSDM Method.
  • 2016. Seismic imaging of deeply emplaced sill complexes.
  • 2008. Shear wave reflection seismic surveying in the Trondheim harbour area - imaging of land slide processes Paper Number: S11C-1755.
  • 2004. Towards an efficient workflow for modelling the seismic response from reservoir fluid simulator data.
Article in business/trade/industry journal
  • 2019. From Outcrop Geology to Seismic… and Back! GeoExpro. 72-76.

More information in national current research information system (CRIStin)

University of Bergen (approved full pedagogy completed in 2017, with UiO part + 5 UiB ECTS)                                                    

University of Oslo (87.5% of full pedagogy, taken during 5-year adjunct position 2012-2016)                                       

  • Pedagogy, “The courage to teach”, 12.5% module (12 hours; voluntary) - 2015
  • Pedagogy, “Forskningsveiledning”, 25% module (25 hours; voluntary) - 2014
  • Pedagogy, “Basiskompetanse”, 50% module (50 hours; mandatory for adjunct professors)- 2013

UiB/GEO project leader for UiB participation in “Forecasting of architecture, seismic characteristics and flow behaviour in paleokarst reservoirs - FOPAK”, NFR Petromaks2 contract 267634/E30, led by NORCE/CIPR, Jan Tveranger project leader.

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