Førsteamanuensis i geofysikk
Ahmed, Nisar; Weibull, Wiktor Waldemar; Quintal, Beatriz; Grana, Dario; Bhakta, Tuhin
(2022)
Frequency-dependent AVO inversion applied to physically based models for seismic attenuation.Geophysical Journal International.
ISSN 0956-540X.
Volum 233.
Hefte 1.
s.234-252.
DOI: 10.1093/gji/ggac461
Ahmed, Nisar; Weibull, Wiktor Waldemar; Grana, Dario
(2022)
Constrained non-linear AVO inversion based on the adjoint-state optimization.Computers & Geosciences.
ISSN 0098-3004.
Volum 168.
Cunningham, Jennifer Elizabeth; Weibull, Wiktor Waldemar; Cardozo, Nestor; Iacopini, David
(2021)
Investigating the PS seismic imaging of faults using seismic modelling and data from the Snøhvit field, Barents Sea.Petroleum Geoscience.
ISSN 1354-0793.
Ahmed, Nisar; Ahmad, Mubasher; Khan, Khalid Amin; Weibull, Wiktor Waldemar; Khalid, Perveiz
(2021)
AVA-anisotropy: spreadsheets program to model the variation of P-wave reflectivity with angle in VTI, HTI, and orthorhombic media.Arabian Journal of Geosciences.
ISSN 1866-7511.
Volum 14.
Wang, Chenlong; Cheng, Jiubing; Weibull, Wiktor Waldemar; Arntsen, Børge
(2019)
Elastic wave-equation migration velocity analysis preconditioned through mode decoupling.Geophysics.
ISSN 0016-8033.
Volum 84.
Hefte 3.
s.R341-R353.
Landrø, Martin; Kodaira, Shuichi; Fujiwara, Toshiya; No, Tetsuo; Weibull, Wiktor Waldemar; Arntsen, Børge
(2019)
Time lapse seismic analysis of the Tohoku-Oki 2011 earthquake.International Journal of Greenhouse Gas Control.
ISSN 1750-5836.
Volum 82.
s.98-116.
Ohm, Karen Synnøve; Weibull, Wiktor Waldemar; Luo, Xiaodong
(2019)
Uncertainty quantification in non-linear seismic inversion: A comparison of three different methods. I: SEG Technical Program Expanded Abstracts 2019.ISBN 0916160009.
s.1675-1679.
Ahmad, Sayyid Suhail; Weibull, Wiktor Waldemar; Brown, Robert James; Escalona Varela, Alejandro
(2019)
Observations and suggested mechanisms for generation of low-frequency seismic anomalies: Examples from the Johan Sverdrup field, central North Sea Norwegian sector.Geophysics.
ISSN 0016-8033.
Volum 84.
Hefte 1.
s.B1-B14.
Weibull, Wiktor Waldemar; Ahmad, Sayyid Suhail; Brown, R.J.; Rosland, B.; Nazi, Hediyeh
(2019)
A comparison of the effects of layering and attenuation on the seismic response of gas reservoirs. I: 81th EAGE Annual Conference & Exhibition 2019.
European Association of Geoscientists and Engineers (EAGE).
ISBN 9781510888036.
Ahmad, Sayyid Suhail; Weibull, Wiktor Waldemar; Brown, Robert James; Escalona Varela, Alejandro
(2018)
AVO, AVAZ Responses and Velocity Anisotropy Associated with Low-Frequency Anomalies-Example from the Southern North Sea. I: 80th EAGE Annual Conference & Exhibition 2018.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-94-6282-254-2.
Radwan, Mohamed; Weibull, Wiktor Waldemar
(2018)
Application of Elastic Full-Waveform Inversion on Blackfoot 3D Multicomponent Data. I: 80th EAGE Annual Conference & Exhibition 2018.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-94-6282-254-2.
Wang, Chen Long; Weibull, Wiktor Waldemar; Cheng, Jiubing; Arntsen, Børge
(2017)
Automatic Shear-wave Velocity Analysis with Elastic Reverse Time Migration. I: 79th EAGE Conference & Exhibition 2017.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-94-6282-217-7.
Wang, Chen Long; Cheng, Jiubing; Weibull, Wiktor Waldemar
(2017)
3D Vector Imaging of Converted Waves for Fractured Reservoirs. I: 79th EAGE Conference & Exhibition 2017.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-94-6282-217-7.
Ahmad, Sayyid Suhail; Weibull, Wiktor Waldemar; Brown, Robert James; Escalona Varela, Alejandro
(2017)
Low-frequency analysis from permeable and fractured rocks in the central North Sea - A possible Krauklis-wave phenomenon. I: 79th EAGE Conference & Exhibition 2017.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-94-6282-217-7.
Weibull, Wiktor Waldemar; Ebrahim, Farid Mahmoud Mohamed
(2017)
Elastic Reverse-Time Migration and Velocity Analysis Using Multicomponent Geophone Data. I: 79th EAGE Conference & Exhibition 2017.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-94-6282-217-7.
Raknes, Espen Birger; Weibull, Wiktor Waldemar
(2016)
Efficient 3D elastic full-waveform inversion using wavefield reconstruction methods.Geophysics.
ISSN 0016-8033.
Volum 81.
Hefte 2.
s.R45-R55.
Panzner, Martin; Morten, Jan Petter; Weibull, Wiktor Waldemar; Arntsen, Børge
(2016)
Integrated seismic and electromagnetic model building applied to improve subbasalt depth imaging in the Faroe-Shetland Basin.Geophysics.
ISSN 0016-8033.
Volum 81.
Hefte 1.
s.E57-E68.
Raknes, Espen Birger; Arntsen, Børge; Weibull, Wiktor Waldemar
(2015)
Three-dimensional elastic full waveform inversion using seismic data from the Sleipner area.Geophysical Journal International.
ISSN 0956-540X.
Volum 202.
Hefte 3.
s.1877-1894.
DOI: 10.1093/gji/ggv258
Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge
(2015)
Seismic imaging of the carbon dioxide gas cloud at Sleipner using 3D elastic time-lapse full waveform inversion.International Journal of Greenhouse Gas Control.
ISSN 1750-5836.
Volum 42.
s.26-45.
Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge
(2014)
Elastic velocity analysis and time-lapse full-waveform inversion.The Leading Edge.
ISSN 1070-485X.
Volum 33.
Hefte 9.
s.1000-1006.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2014)
Reverse-time demigration using the extended-imaging condition.Geophysics.
ISSN 0016-8033.
Volum 79.
Hefte 3.
s.WA97-WA105.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2013)
Automatic velocity analysis with reverse-time migration.Geophysics.
ISSN 0016-8033.
Volum 78.
Hefte 4.
s.S179-S192.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2012)
Anisotropic Migration Velocity Analysis Using the Elastic Wave Equation. I: 74th EAGE Conference & Exhibition incorporating SPE EUROPEC 2012.
European Association of Geoscientists and Engineers (EAGE).
ISBN 978-90-73834-27-9.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2012)
Full-waveform Inversion in the Data and Image Spaces. I: 74th EAGE Conference & Exhibition incorporating SPE EUROPEC 2012.
European Association of Geoscientists and Engineers (EAGE).
ISBN 978-90-73834-27-9.
Weibull, Wiktor Waldemar; Arntsen, Børge; Houbiers, M.
(2012)
Reverse Time Migration Velocity Analysis - A Real Field Data Example. I: 74th EAGE Conference & Exhibition incorporating SPE EUROPEC 2012.
European Association of Geoscientists and Engineers (EAGE).
ISBN 978-90-73834-27-9.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2011)
Automatic Migration Velocity Analysis Using Reverse Time Migration. I: 73rd EAGE Conference & Exhibition Incorporating SPE EUROPEC 2011.European Association of Geoscientists and Engineers (EAGE).
ISBN 978-90-73834-12-5.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2010)
Implications of the Born approximation for WEMVA - a systematic approach.Society of Exploration Geophysicists. Expanded Abstracts with Biographies.
ISSN 1052-3812.
Volum 29.
s.4405-4409.
DOI: 10.1190/1.3513797
Weibull, Wiktor Waldemar; Mienert, Jurgen; Bünz, Stefan; Hustoft, Steinar
(2010)
Fluid migration directions inferred from gradient of time surfaces of the sub seabed.Marine and Petroleum Geology.
ISSN 0264-8172.
Volum 27.
Hefte 9.
s.1898-1909.
Li, Geng
(2018)
Data Assimilation Methods in Seismic Inversion.
Kausar, Tayyaba
(2018)
Simultaneous AVO inversion and seismic lithology cube estimation by using PP and PS angle stack seismic data of the Oseberg Field, North Sea.
Rodriguez, Maria Antonieta Alcantara
(2018)
Ground penetrating radar and seismic study to determine glacial deposit stratigraphy.
Ebrahim, Farid Mahmoud Mohamed
(2017)
Converted wave imaging and velocity analysis using elastic reverse-time migration.
Grønberg, Annette
(2017)
Wave-equation migration velocity analysis of the successive vintages of the Sleipner Field - A detailed prediction of the mechanical effects caused by CO2 injection.
Storaas, Øystein
(2017)
Processing techniques to enhance imaging of ultra-high frequency seismic data acquired with P-Cable technology.
Ranchod, Ushah
(2017)
Comparing AVA character between well derived 3D synthetic models and real seismic together with extended elastic impedance studies of the Agat Formation in the Northern Viking Graben.
Weibull, Wiktor Waldemar; Arntsen, Børge
(2014)
Seismic Processing and Velocity Analysis Using Reverse-Time Migration.
Norges teknisk-naturvitenskapelige universitet.
ISBN 978-82-471-4868-6.
Hefte 3.
Ahmed, Nisar; Weibull, Wiktor Waldemar
(2022)
Gradient Descent Optimization Method for AVO Inversion in Viscoelastic Media.
83rd EAGE Annual Conference & Exhibition;
2022-06-05 - .
Olsen, Thomas Meldahl; Weibull, Wiktor Waldemar; Escalona Varela, Alejandro
(2022)
Autonomous 3D geophysical data acquisition, imaging and interpretation for near surface applications.
Applied Geophysics;
2022-03-01 - 2022-03-03.
Olsen, Thomas Meldahl; Weibull, Wiktor Waldemar; Escalona Varela, Alejandro; Watson, Lisa Jean; Sigmundstad, Espen
(2021)
Nytt fag skal skape muligheter utenfor petroleum på UiS.
E24.
Cardozo, Nestor; Weibull, Wiktor Waldemar; Escalona, Alejandro
(2021)
Jordskjelvrisikoen for Rogfast er liten.
Stavanger Aftenblad.
ISSN 0804-8991.
s.30-30.
Ahmed, Nisar; Weibull, Wiktor Waldemar
(2020)
Estimation of Seismic Response by AVO Inversion due to Changes in Oil-Saturation and Pressure during Production.European Association of Geoscientists and Engineers (EAGE) 2020;
2020-12-08 - 2020-12-11.
Ohm, Karen Synnøve; Weibull, Wiktor Waldemar; Luo, Xiaodong
(2019)
Uncertainty quantification in non-linear seismic inversion: A comparison of three different methods.
SEG Annual Meeting 2019;
2019-09-15 - 2019-09-20.
Ebrahim, Farid Mahmoud Mohamed; Weibull, Wiktor Waldemar
(2017)
Tomographic co-depthing of reflectors in PP and PS elastic reverse-time migrated images.Society of Exploration Geophysicists annual meeting 2017;
2017-09-24 - 2017-09-29.
Landrø, Martin; Kodaira, Shuichi; Fujiwara, toshiya; No, Tetsuo; Weibull, Wiktor Waldemar; Arntsen, Børge
(2016)
Estimating the dilation factor using time-lapse earthquake data.
EAGE annual meeting;
2016-05-30 - 2016-06-02.
Raknes, Espen Birger; Weibull, Wiktor Waldemar
(2016)
Combining wave-equation migration velocity analysis and full-waveform inversion for improved 3D elastic parameter estimation.SEG Annual Meeting 2016;
2016-10-16 - 2016-10-21.
Raknes, Espen Birger; Weibull, Wiktor Waldemar
(2015)
Source Wavefield Reconstruction for Large-scale 3D Elastic Full-waveform Inversion.
77th EAGE Conference & Exhibition 2015;
2015-06-01 - 2015-06-04.
Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge
(2013)
Time-lapse full waveform inversion: Synthetic and real data examples.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies.
ISSN 1052-3812.
Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge
(2013)
Time-lapse full waveform inversion: Synthetic and real data examples.
SEG Technical Program Expanded Abstracts 2013;
2013-09-23 - 2013-09-27.
Weibull, Wiktor Waldemar; Arntsen, Børge; Raknes, Espen Birger
(2012)
Initial velocity models for full waveform inversion.
SEG Annual Meeting Conference;
2012-11-04 - 2012-11-09.
