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Viser treff 1-39 av 39

2021
1 Aaker, Ole Edvard; Raknes, Espen Birger; Arntsen, Børge.
Elastodynamic full waveform inversion on GPUs with time-space tiling and wavefield reconstruction. Journal of Supercomputing 2021 ;Volum 77. s. 2416-2457
NTNU Untitled
 
2 Aaker, Ole Edvard; Raknes, Espen Birger; Pedersen, Ørjan.
Newton-type inversion for source signature and medium parameters. First International Meeting for Applied Geoscience & Energy; 2021-09-26 - 2021-10-01
NTNU Untitled
 
2020
3 Aaker, Ole Edvard; Raknes, Espen Birger; Pedersen, Ørjan; Arntsen, Børge.
Wavefield reconstruction for velocity–stress elastodynamic full-waveform inversion. Geophysical Journal International 2020 ;Volum 222.(1) s. 595-609
NTNU Untitled
 
2018
4 Hagen, Vegard Stenhjem; Arntsen, Børge; Raknes, Espen Birger.
A new method for constructing the Hessian in elastic full waveform inversion. SEG Annual Meeting 2018; 2018-10-14 - 2018-10-19
NTNU Untitled
 
5 Karpov, Ivan; Arntsen, Børge; Raknes, Espen Birger.
Using interpolation to insert small-scale inhomogeneities in the acoustic finite difference scheme. SEG Technical Program Expanded Abstracts 2018; 2018-10-14 - 2018-10-19
NTNU Untitled
 
6 Lewis, Olivia; Apeland, Geir; Osen, Are; Raknes, Espen Birger; Milne, Ross.
Efficient Depth Model Building Using FWI Early in the Workflow: a Case Study from the Norwegian Sea. 80th EAGE Conference and Exhibition 2018; 2018-06-11 - 2018-06-14
NTNU Untitled
 
7 Raknes, Espen Birger; Osen, Are; Pettersen, Ruth Sunnøve Haga; Rykkelid, Erling; Runde, Øivind.
Understanding the imaging challenges at the Frigg Gamma discovery. 80th EAGE Conference and Exhibition 2018; 2018-06-11 - 2018-06-14
NTNU Untitled
 
2017
8 Arntsen, Børge; Raknes, Espen Birger.
True amplitude cross-correlation imaging condition for Reverse Time Migration. EGU General Assembly Conference 2017; 2017-04-23 - 2017-04-28
NTNU Untitled
 
9 Bergslid, Tore Sivertsen; Raknes, Espen Birger; Arntsen, Børge.
Fast in-memory elastic full-waveform inversion using consumer-grade GPUs. EGU General Assembly Conference 2017; 2017-04-23 - 2017-04-28
NTNU Untitled
 
10 Hagen, Vegard Stenhjem; Arntsen, Børge; Raknes, Espen Birger.
Uncertainty Estimation in Elastic Full Waveform Inversion by Utilising the Hessian Matrix. AGU Fall Meeting 2017; 2017-12-12 - 2017-12-12
NTNU Untitled
 
11 Raknes, Espen Birger; Arntsen, Børge.
Challenges and solutions for performing 3D time-domain elastic full-waveform inversion. The Leading Edge 2017 ;Volum 36.(1) s. 88-93
NTNU Untitled
 
12 Raknes, Espen Birger; Moser, Tijmen Jan; Arntsen, Børge; Johansen, Ståle Emil; Sangesland, Sigbjørn.
Surface Seismic While Drilling-Imaging of Well Bores in Seismic Context. 79th EAGE Conference and Exhibition 2017; 2017-06-12 - 2017-06-15
NTNU Untitled
 
13 Sourouri, Mohammed; Raknes, Espen Birger.
Accelerating 3D Elastic Wave Equations on Knights Landing based Intel Xeon Phi processors. European Geosciences Union General Assembly Abstracts 2017
NTNU Untitled
 
14 Sourouri, Mohammed; Raknes, Espen Birger; Reissmann, Nico; Langguth, Johannes; Hackenberg, Daniel; Schöne, Robert; Kjeldsberg, Per Gunnar.
Towards Fine-Grained Dynamic Tuning of HPC Applications on Modern Multi-Core Architectures. SC17, The International Conference for High Performance Computing, Networking, Storage and Analysis; 2017-11-12 - 2017-11-17
NTNU Untitled
 
15 Sourouri, Mohammed; Raknes, Espen Birger; Reissmann, Nico; Langguth, Johannes; Hackenberg, Daniel; Schöne, Robert; Kjeldsberg, Per Gunnar.
Towards Fine-Grained Dynamic Tuning of HPC Applications on Modern Multi-Core Architectures. I: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis. Association for Computing Machinery (ACM) 2017 ISBN 978-1-4503-5114-0. s. -
NTNU Untitled
 
2016
16 Bergslid, Tore Sivertsen; Raknes, Espen Birger; Arntsen, Børge.
A practical comparison of different parameterizations for anisotropic elastic full-waveform inversion. SEG Annual Meeting 2016; 2016-10-16 - 2016-10-21
NTNU Untitled
 
17 Haavik, Kjetil Eik; Raknes, Espen Birger; Landrø, Martin.
Implementation of marine seismic source wavefields in finite-difference methods using wavefield injection. Geophysics 2016 ;Volum 81.(5) s. T211-T219
NTNU Untitled
 
18 Moser, Tijmen Jan; Arntsen, Børge; Johansen, Ståle Emil; Raknes, Espen Birger; Sangesland, Sigbjørn.
Seismic Diffraction Response from Boreholes. 78th EAGE Conference and Exhibition 2016; 2016-05-30 - 2016-06-02
NTNU UiT Untitled
 
19 Moser, Tijmen Jan; Arntsen, Børge; Johansen, Ståle Emil; Raknes, Espen Birger; Sangesland, Sigbjørn.
Surface seismic monitoring while drilling using diffractions - concept and field data example. SEG technical program expanded abstracts 2016 ;Volum 35. s. 662-666
NTNU Untitled
 
20 Moser, Tijmen Jan; Arntsen, Børge; Johansen, Ståle Emil; Raknes, Espen Birger; Sangesland, Sigbjørn.
Surface-seismic monitoring while drilling using diffractions: Concept and field data example. SEG Annual Meeting 2016; 2016-10-16 - 2016-10-21
NTNU UiT Untitled
 
21 Moser, Tijmen Jan; Johansen, Ståle Emil; Arntsen, Børge; Raknes, Espen Birger; Sangesland, Sigbjørn.
Interpretation of Complex Reservoirs - From Outcrops to Superresolution Imaging. 78th EAGE Conference and Exhibition 2016; 2016-05-30 - 2016-06-02
NTNU UiT Untitled
 
22 Raknes, Espen Birger; Arntsen, Børge.
On the development of elastic three dimensional full waveform inversion in exploration geophysics. EGU General Assembly 2016; 2016-04-17 - 2016-04-17
NTNU Untitled
 
23 Raknes, Espen Birger; Weibull, Wiktor Waldemar.
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
NTNU UIS Untitled
 
24 Raknes, Espen Birger; Weibull, Wiktor Waldemar.
Efficient 3D elastic full-waveform inversion using wavefield reconstruction methods. Geophysics 2016 ;Volum 81.(2) s. R45-R55
NTNU UIS Untitled
 
2015
25 Bergslid, Tore Sivertsen; Raknes, Espen Birger; Arntsen, Børge.
The influence of anisotropy on elastic full-waveform inversion. SEG Annual Meeting 2015; 2015-10-18 - 2015-10-23
NTNU Untitled
 
26 Raknes, Espen Birger; Arntsen, Børge.
A numerical study of 3D elastic time-lapse full-waveform inversion using multicomponent seismic data. Geophysics 2015 ;Volum 80.(6) s. R303-R315
NTNU Untitled
 
27 Raknes, Espen Birger.
Three Dimensional Elastic Full Waveform Inversion. Norges teknisk-naturvitenskapelige universitet 2015 (ISBN 978-82-326-1080-8) 185 s. Doktoravhandlinger ved NTNU(212)
NTNU Untitled
 
28 Raknes, Espen Birger; Arntsen, Børge; Weibull, Wiktor Waldemar.
Three-dimensional elastic full waveform inversion using seismic data from the Sleipner area. Geophysical Journal International 2015 ;Volum 202.(3) s. 1877-1894
NTNU Untitled
 
29 Raknes, Espen Birger; Weibull, Wiktor Waldemar.
Source Wavefield Reconstruction for Large-scale 3D Elastic Full-waveform Inversion. 77th EAGE Conference & Exhibition 2015; 2015-06-01 - 2015-06-04
NTNU Untitled
 
30 Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge.
Seismic imaging of the carbon dioxide gas cloud at Sleipner using 3D elastic time-lapse full waveform inversion. International Journal of Greenhouse Gas Control 2015 ;Volum 42. s. 26-45
NTNU Untitled
 
2014
31 Evensen, K; Sangesland, Sigbjørn; Johansen, Ståle Emil; Raknes, Espen Birger; Arntsen, Børge.
Relief Well Drilling Using Surface Seismic While Drilling. IADC drilling conference; 2014-03-04 - 2014-03-06
NTNU Untitled
 
32 Evensen, Kristoffer; Sangesland, Sigbjørn; Johansen, Ståle Emil; Raknes, Espen Birger; Arntsen, Børge.
Relief Well Drilling Using Surface Seismic While Drilling. I: IADC/SPE Drilling Conference and Exhibition, Texas, USA, 4-6 March 2014 - Conference Proceedings. Society of Petroleum Engineers 2014 ISBN 978-1-61399-296-8. s. -
NTNU Untitled
 
33 Raknes, Espen Birger; Arntsen, Børge.
Strategies for elastic full waveform inversion. Society of Exploration Geophysicists. Expanded Abstracts with Biographies 2014 s. 1222-1226
NTNU Untitled
 
34 Raknes, Espen Birger; Arntsen, Børge.
Time-lapse full-waveform inversion of limited-offset seismic data using a local migration regularization. Geophysics 2014 ;Volum 79.(3) s. WA117-WA128
NTNU Untitled
 
35 Raknes, Espen Birger; Arntsen, Børge.
3D elastic time-lapse full waveform inversion using multi-component seismic data. Society of Exploration Geophysicists. Expanded Abstracts with Biographies 2014 s. 1939-1944
NTNU Untitled
 
36 Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge.
Elastic velocity analysis and time-lapse full-waveform inversion. The Leading Edge 2014 ;Volum 33.(9) s. 1000-1006
NTNU Untitled
 
2013
37 Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge.
Time-lapse full waveform inversion: Synthetic and real data examples. SEG Technical Program Expanded Abstracts 2013; 2013-09-23 - 2013-09-27
NTNU Untitled
 
38 Raknes, Espen Birger; Weibull, Wiktor Waldemar; Arntsen, Børge.
Time-lapse full waveform inversion: Synthetic and real data examples. Society of Exploration Geophysicists. Expanded Abstracts with Biographies 2013
NTNU Untitled
 
2012
39 Weibull, Wiktor Waldemar; Arntsen, Børge; Raknes, Espen Birger.
Initial velocity models for full waveform inversion. SEG Annual Meeting Conference; 2012-11-04 - 2012-11-09
NTNU Untitled