Biondo Biondi
Barney and Estelle Morris Professor
Geophysics
Web page: http://sep.stanford.edu/sep/biondo
Bio
My students and I devise new algorithms to improve the imaging of active and passive seismic data. Images obtained from seismic data are the primary source of information on the structural and stratigraphic complexities in Earth's subsurface and on many subsurface dynamic processes. These images are constructed by processing seismic wavefields recorded at the Earth's surface and generated by either active-source (e.g., vibroseis trucks) experiments or by natural (e.g., ocean waves) and anthropogenic (e.g., vehicle traffic) sources. Because our datasets are enormous, and wavefield propagation needs to be accurately modeled to achieve high-resolution imaging, we need to harness the power of the latest computational hardware to test our methods on field data. Therefore, mapping imaging algorithms into high-performance architecture is an essential component of our research. The amount and quality of information that we can extract from seismic data are directly linked to the temporal and spatial sampling of the sources and the receivers. In the past several years, we have been working on methods to process data recorded by using fiber cables as seismic sensors. Fiber-optic seismic recording promises to enable cost-effective continuous seismic monitoring at a large scale. A particularly exciting possibility is leveraging preexisting telecommunication infrastructure to record seismic data with dense arrays in urban environments continuously. In 2016 we pioneered that idea by recording data under the Stanford campus. Since then, we recorded data in San Jose and on a 48-km array under Stanford and neighboring cities.
Administrative Appointments
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Chair of the Geophysics Department, Stanford University (2019 - 2022)
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Director, Stanford Earth imaging Project, Stanford University (1998 - Present)
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Co-Director, Stanford Earth Sciences Algorithms and Architectures Initiative, Stanford University (2010 - Present)
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Program Director, Computational Geoscience Degree Program, Stanford University (2011 - 2018)
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Member, Ad-hoc Faculty Committee on the Stanford Research Computing Facility, Stanford University (2011 - 2012)
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Co-Director, Center for Computational Earth and Environmental Sciences, Stanford University (2010 - 2019)
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Member, Stanford Senate Committee on Research (2009 - 2010)
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Member, Earth Sciences Council, Stanford University (2007 - 2010)
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Member, Stanford Senate Committee on Research, Stanford University (2007 - 2008)
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Member, School of Earth Sciences Web Advisory Committee, Stanford University (2006 - 2007)
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Member of the Faculty Advisory Panel of the Stanford CEES, Stanford University (2005 - Present)
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Member of the Academic Oversight Committee of the Graduate Program in EEES, Stanford University (2005 - 2009)
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Member of the School of Earth Sciences Academic Program (Graduate) Committee, Stanford University (2004 - 2005)
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Member of the School of Earth Sciences Computational Initiative Committee, Stanford University (2004 - 2005)
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Instructor at the Mathematical Geophysics (Summer) School, Stanford University (2002 - 2002)
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Member of Teaching and Information Technology Geophysics Department Committee, Stanford University (2000 - 2003)
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Organizing Committee, Stanford Mathematical Geophysics (Summer) School, Stanford University (1998 - 2003)
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Instructor at the Mathematical Geophysics (Summer) School, Stanford University (1998 - 1998)
Honors & Awards
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Honorable Mention award for Best Paper Presented at the 2019 SEG Annual Meeting (co-author)., Society of Exploration Geophysicists (2019)
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Honorable mention for Best Paper in Geophysics from SEG (co-author), Society of Exploration Geophysicists (2016)
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Honorable mention for Best Paper in Geophysics from SEG (co-author), Society of Exploration Geophysicists (2009)
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Distinguished Instructor Short Course, Society of Exploration Geophysicists and the European Association of Geoscientists and Engineers (2007)
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Louis Cagniard Award for the best poster presentation (co-author), European Association of Geoscientists and Engineers (2005)
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Reginald Fessenden Award, Society of Exploration Geophysicists (2004)
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Outstanding Contribution SEG 65th Annual Meeting, Society of Exploration Geophysicists (1996)
Boards, Advisory Committees, Professional Organizations
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Invited speaker, Executive Exploration Forum, Schlumberger, Montecarlo, Monaco (2012 - 2012)
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Invited speaker, Workshop, Inversion-based High Resolution Imaging of Reservoirs, Meeting of Society of Exploration Geophysicists (2012 - 2012)
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Short Course Instructor, Pemex, Villahermosa, Mexico (2012 - 2012)
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Short Course Instructor, Ion Geophysical;, Houston, Texas (2012 - 2012)
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Short Course Instructor, TGS; Houston, Texas (2012 - 2012)
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Short Course Instructor, Pemex, Villahermosa, Mexico (2011 - 2011)
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Short Course Instructor, Saudi Aramco, Dhaharain, Saudi Arabia (2011 - 2011)
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Short Course Instructor, Society of Exploration Geophysicists - Continuing Education , New Orleans, Louisiana (2011 - 2011)
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Short Course Instructor, WesternGeco-Schlumberger - Area Geophysicist University , Houston, Texas (2011 - 2011)
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Convenor, SEG (Summer) Research Workshop: Subsalt Exploration and Development: Four years later, what's new in acquisition, imaging and interpretation? (2010 - 2010)
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Invited speaker, Workshop: Full wave-equation methods for complex imaging challenges, Meeting of Society of Exploration Geophysicists (2009 - 2009)
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Invited speaker, Workshop: Reverse-Time Migration- Problems and Promises, Meeting of Society of Exploration Geophysicists (2009 - 2009)
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Keynote speaker, Research Workshop: SubSalt Imaging - focus on azimuth, European Association of Geoscientists and Engineers (2009 - 2009)
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Invited speaker, Workshop: Computing trends in O&G and Earth Sciences, Meeting of European Association of Geoscientists and Engineers (2008 - 2008)
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Invited speaker, Workshop: Reducing Cycle Time from seismic acquisition to interpretation, Meeting of European Association of Geoscientists and Engineers (2008 - 2008)
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Keynote speaker, Workshop: Interpreting Depth-Imaged Data – Case studies, examples, and pitfalls from the interpreters, Meeting of Society of Exploration Geophysicists (2008 - 2008)
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Member, Editorial Board of the Journal on Imaging Sciences published by the Society for Industrial and Applied Mathematics (2007 - Present)
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Short Course Instructor, Saudi Aramco, Dhaharain, Saudi Arabia (2007 - 2007)
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Short Course Instructor, Saudi Aramco, Dhaharain, Saudi Arabia (2006 - 2006)
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Keynote speaker, Seismic Imaging Symposium, Veritas-DGC, Calgary, Canada (2006 - 2006)
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Chairman, SEG/EAGE (Summer) Research Workshop: Subsalt Exploration & Development: Imaging, interpretation & drilling- What have we learned (2006 - 2006)
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Distinguished Scientist Lecture, BP Technology Center, Houston, Texas (2005 - 2005)
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Invited speaker, Workshop on Computational Geosciences, Colorado School of Mines (2005 - 2005)
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Invited speaker, Department seminar at Rice University (2005 - 2005)
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Short Course Instructor, PDVSA, Puerto La Cruz, Venezuela (2005 - 2005)
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Invited speaker Workshop, Geophysical Imaging, Rensselaer Polytechnic Institute (2005 - 2005)
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Invited speaker Workshop, Estimation of accurate velocity macro-models in complex structures, Meeting of European Association of Geoscientists and Engineers (2004 - 2004)
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Invited speaker, International Conference Scientific Computing In Petroleum Industry, Beijing, China (2004 - 2004)
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Invited speaker, Workshop, Estimation of accurate velocity macro-models in complex structures, Meeting of European Association of Geoscientists and Engineers (2004 - 2004)
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Keynote speaker, Salt Tectonics Symposium at ExxonMobil Exploration Company, Houston, Texas (2004 - 2004)
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Convenor, EAGE-SEG (Summer) Research Workshop: Processing and imaging of seismic data using explicit or implicit velocity model information (2003 - 2003)
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Invited speaker, 12th International Workshop of IUGG's Commission on Controlled-Source Seismology (2003 - 2003)
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Convenor, SEG Workshop Passive Seismic Imaging (2003 - 2003)
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Invited speaker, Geophysical Society of Houston (2002 - 2002)
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Invited speaker, Special session: Depth Imaging, Meeting of Canadian Society of Exploration Geophysicists (2002 - 2002)
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Invited speaker, Interactive session: Wave equation versus ray based methods, Meeting of European Association of Geoscientists and Engineers (2002 - 2002)
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Invited speaker, Geophysical Society of Houston (2001 - 2001)
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Invited speaker, Southeastern Geophysical Society (2001 - 2001)
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Invited speaker, Heiland Lecture at Colorado School of Mines (2001 - 2001)
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Convenor, SEG Workshop Seismic Imaging beyond Kirchhoff (2001 - 2001)
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Convenor, SEG Workshop Changing the way we work: e-business & the Internet (2001 - 2001)
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Invited speaker, International seminar on sesimic migration and inversion, Seoul National University, South Korea. (2001 - 2001)
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Invited speaker, Incorporated Research Institutions for Seismology (IRIS) Workshop (2000 - 2000)
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Invited speaker, Workshop: Prestack Depth Imaging: Prospects and Challenges, Meeting of European Association of Geoscientists and Engineers (2000 - 2000)
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Invited Speaker, New Approaches to Seismic Imaging Workshop, 6th International Congress of the Brazilian Geophysical Society (1999 - 1999)
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Short Course Instructor, Daqing, China (1998 - 1998)
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Convenor, EAGE-SEG (Summer) Research Workshop Depth Imaging of Seismic Reservoir Attributes (1998 - 1998)
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Member, Research Committee of the Society of Exploration Geophysicists Research Committee (1996 - Present)
Professional Education
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Ph.D, Stanford University, Geophysics (1990)
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M.S., Stanford University, Geophysics (1987)
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M.Sc., Politecnico di Milano, Electrical Engineering (1984)
Current Research and Scholarly Interests
Research
My students and I devise new algorithms to improve the imaging of reflection seismic data. Images obtained from seismic data are the main source of information on the structural and stratigraphic complexities in Earth's subsurface. These images are constructed by processing seismic wavefields recorded at the surface of Earth and generated by either active-source experiments (reflection data), or by far-away earthquakes (teleseismic data). The high-resolution and fidelity of 3-D reflection-seismic images enables oil companies to drill with high accuracy for hydrocarbon reservoirs that are buried under two kilometers of water and up to 15 kilometers of sediments and hard rock. To achieve this technological feat, the recorded data must be processed employing advanced mathematical algorithms that harness the power of huge computational resources. To demonstrate the advantages of our new methods, we process 3D field data on our parallel cluster running several hundreds of processors.
Teaching
I teach a course on seismic imaging for graduate students in geophysics and in the other departments of the School of Earth Sciences. I run a research graduate seminar every quarter of the year. This year I will be teaching a one-day short course in 30 cities around the world as the SEG/EAGE Distinguished Instructor Short Course, the most important educational outreach program of these two societies.
Professional Activities
2007 SEG/EAGE Distinguished Instructor Short Course (2007); co-director, Stanford Exploration Project (1998-present); founding member, Editorial Board of SIAM Journal on Imaging Sciences (2007-present); member, SEG Research Committee (1996-present); chairman, SEG/EAGE Summer Research Workshop (2006)
2024-25 Courses
- 3-D Seismic Imaging
GEOPHYS 280 (Spr) - Geophysical Inverse Problems
ENERGY 283, GEOPHYS 281 (Win) - Reflection Seismology
GEOPHYS 385A (Aut, Win, Spr) -
Independent Studies (7)
- Directed Research
SUSTAIN 400 (Win, Spr) - Honors Program
GEOPHYS 198 (Aut, Sum) - Master's Research
CME 291 (Aut, Win, Spr, Sum) - Ph.D. Research
CME 400 (Aut, Win, Spr, Sum) - Report on Energy Industry Training
GEOPHYS 255 (Aut) - Research in Geophysics
GEOPHYS 400 (Aut, Win, Spr, Sum) - Undergraduate Research in Geophysics
GEOPHYS 196 (Aut, Win, Spr, Sum)
- Directed Research
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Prior Year Courses
2023-24 Courses
- Reflection Seismology
GEOPHYS 385A (Aut, Win, Spr)
2022-23 Courses
- 3-D Seismic Imaging
GEOPHYS 280 (Spr) - Basic Earth Imaging
GEOPHYS 188, GEOPHYS 210 (Aut) - Frontiers of Geophysical Research at Stanford
GEOPHYS 101, GEOPHYS 201 (Aut) - Reflection Seismology
GEOPHYS 385A (Aut, Win, Spr, Sum)
2021-22 Courses
- 3-D Seismic Imaging
GEOPHYS 280 (Spr) - Basic Earth Imaging
GEOPHYS 188, GEOPHYS 210 (Aut) - Frontiers of Geophysical Research at Stanford
GEOPHYS 101, GEOPHYS 201 (Aut) - Know Your Planet: Big Earth
EARTH 1B (Win) - Reflection Seismology
GEOPHYS 385A (Aut, Win, Spr, Sum)
- Reflection Seismology
Stanford Advisees
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Postdoctoral Faculty Sponsor
Cewen Liu -
Doctoral Dissertation Advisor (AC)
Thomas Cullison, Julio Frigerio, Haipeng Li, Min Jun Park, Joe Stitt -
Doctoral (Program)
Rustam Akhmadiev
All Publications
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Detecting local earthquakes via fiber-optic cables in telecommunication conduits under Stanford University campus using deep learning
COMPUTERS & GEOSCIENCES
2024; 190
View details for DOI 10.1016/j.cageo.2024.105625
View details for Web of Science ID 001333584500001
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DeepNRMS: Unsupervised deep learning for noise-robust CO2 monitoring in time-lapse seismic images
GEOPHYSICS
2024; 89 (4): IM1-IM11
View details for DOI 10.1190/GEO2023-0608.1
View details for Web of Science ID 001294131200001
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The Global DAS Month of February 2023
SEISMOLOGICAL RESEARCH LETTERS
2024; 95 (3): 1569-1577
View details for DOI 10.1785/0220230180
View details for Web of Science ID 001239284700004
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Using Vehicle-Induced DAS Signals for Near-Surface Characterization With High Spatiotemporal Resolution
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2024; 129 (4)
View details for DOI 10.1029/2023JB028033
View details for Web of Science ID 001206289800001
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Exploiting the Potential of Urban DAS Grids: Ambient-Noise Subsurface Imaging Using Joint Rayleigh and Love Waves
Seismological Research Letters
2024
View details for DOI 10.1785/0220230104
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Moment tensor inversion of perforation shots using distributed-acoustic sensing
GEOPHYSICS
2023; 88 (6): WC37-WC45
View details for DOI 10.1190/GEO2023-0040.1
View details for Web of Science ID 001164124700060
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Spatial Deep Deconvolution U-Net for Traffic Analyses With Distributed Acoustic Sensing
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
2023
View details for DOI 10.1109/TITS.2023.3322355
View details for Web of Science ID 001123182500001
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Full-waveform inversion by model extension: Practical applications
GEOPHYSICS
2023; 88 (5): R609-R643
View details for DOI 10.1190/GEO2022-0382.1
View details for Web of Science ID 001069667300020
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Full-waveform inversion by model extension: Theory, design, and optimization
GEOPHYSICS
2023; 88 (5): R579-R607
View details for DOI 10.1190/GEO2022-0350.1
View details for Web of Science ID 001069667300019
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TelecomTM: A Fine-Grained and Ubiquitous Traffic Monitoring System Using Pre-Existing Telecommunication Fiber-Optic Cables as Sensors
PROCEEDINGS OF THE ACM ON INTERACTIVE MOBILE WEARABLE AND UBIQUITOUS TECHNOLOGIES-IMWUT
2023; 7 (2)
View details for DOI 10.1145/3596262
View details for Web of Science ID 001005382400019
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Target-oriented elastic full-waveform inversion through acoustic extended image-space redatuming
GEOPHYSICS
2023; 88 (3): R269-R296
View details for DOI 10.1190/geo2022-0404.1
View details for Web of Science ID 001020940000005
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Turning Telecommunication Fiber-Optic Cables into Distributed Acoustic Sensors for Vibration-Based Bridge Health Monitoring
STRUCTURAL CONTROL & HEALTH MONITORING
2023; 2023
View details for DOI 10.1155/2023/3902306
View details for Web of Science ID 000975166800001
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PubDAS: A PUBlic Distributed Acoustic Sensing Datasets Repository for Geosciences
SEISMOLOGICAL RESEARCH LETTERS
2023; 94 (2A): 983-998
View details for DOI 10.1785/0220220279
View details for Web of Science ID 000944208600003
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Automatic interpretive image-focusing analysis
GEOPHYSICS
2023; 88 (2): U1-U15
View details for DOI 10.1190/GEO2021-0829.1
View details for Web of Science ID 000983178800001
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Detection and Characterization of Microseismic Events from Fiber-Optic DAS Data Using Deep Learning
SEISMOLOGICAL RESEARCH LETTERS
2022; 93 (5): 2543-2553
View details for DOI 10.1785/0220220037
View details for Web of Science ID 001052385300012
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Microseismic analysis over a single horizontal distributed acoustic sensing fiber using guided waves
GEOPHYSICS
2022; 87 (3): KS83-KS95
View details for DOI 10.1190/GEO2021-0418.1
View details for Web of Science ID 000793465800003
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Integrating deep neural networks with full-waveform inversion: Reparameterization, regularization, and uncertainty quantification
GEOPHYSICS
2022; 87 (1): R93-R109
View details for DOI 10.1190/GEO2020-0933.1
View details for Web of Science ID 000744653000004
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p True-amplitude migration through regularized extended linearized waveform inversion
GEOPHYSICS
2022; 87 (1): S1-S20
View details for DOI 10.1190/GEO2021-0103.1
View details for Web of Science ID 000744646700002
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Joint inversion of the reflectivity and the velocity model
GEOPHYSICS
2022; 87 (1): R1-R12
View details for DOI 10.1190/GEO2020-0631.1
View details for Web of Science ID 000745267500001
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Denoising for full-waveform inversion with expanded prediction-error filters
GEOPHYSICS
2021; 86 (5): V445-V457
View details for DOI 10.1190/GEO2020-0573.1
View details for Web of Science ID 000711980200054
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Seismic inversion of shale reservoir properties using microseismic-induced guided waves recorded by distributed acoustic sensing
GEOPHYSICS
2021; 86 (4): R383-R397
View details for DOI 10.1190/GEO2020-0607.1
View details for Web of Science ID 000688561600006
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Seismic Applications of Downhole DAS.
Sensors (Basel, Switzerland)
2021; 21 (9)
Abstract
Distributed Acoustic Sensing (DAS) is gaining vast popularity in the industrial and academic sectors for a variety of studies. Its spatial and temporal resolution is ever helpful, but one of the primary benefits of DAS is the ability to install fibers in boreholes and record seismic signals in depth. With minimal operational disruption, a continuous sampling along the trajectory of the borehole is made possible. Such resolution is highly challenging to obtain with conventional downhole tools. This review article summarizes different seismic uses, passive and active, of downhole DAS. We emphasize current DAS limitations and potential ways to overcome them.
View details for DOI 10.3390/s21092897
View details for PubMedID 33919095
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Properties of a deep seismic waveguide measured with an optical fiber
PHYSICAL REVIEW RESEARCH
2021; 3 (1)
View details for DOI 10.1103/PhysRevResearch.3.013164
View details for Web of Science ID 000620022200002
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Comparison between Distributed Acoustic Sensing and Geophones: Downhole Microseismic Monitoring of the FORGE Geothermal Experiment
SEISMOLOGICAL RESEARCH LETTERS
2020; 91 (6): 3256–68
View details for DOI 10.1785/0220200149
View details for Web of Science ID 000588054300021
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Approximate Bayesian inference of seismic velocity and pore-pressure uncertainty with basin modeling, rock physics, and imaging constraints
GEOPHYSICS
2020; 85 (5): ID19–ID34
View details for DOI 10.1190/GEO2019-0767.1
View details for Web of Science ID 000588496500051
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Fracture properties estimation using distributed acoustic sensing recording of guided waves in unconventional reservoirs
GEOPHYSICS
2020; 85 (5): M85–M95
View details for DOI 10.1190/GEO2019-0793.1
View details for Web of Science ID 000588496500055
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Applied 3D salt body reconstruction using shape optimization with level sets
GEOPHYSICS
2020; 85 (5): R437–R446
View details for DOI 10.1190/GEO2019-0352.1
View details for Web of Science ID 000588496500018
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A pipeline approach for three dimensional time-domain finite-difference multi-parameter waveform inversion on GPUs
COMPUTERS & GEOSCIENCES
2020; 140
View details for DOI 10.1016/j.cageo.2020.104503
View details for Web of Science ID 000539420100013
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Urban Seismic Site Characterization by Fiber-Optic Seismology
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2020; 125 (3)
View details for DOI 10.1029/2019JB018656
View details for Web of Science ID 000530895800011
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City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic.
Geophysical research letters
2020; 47 (16): e2020GL089931
Abstract
Throughout the recent COVID-19 pandemic, real-time measurements about shifting use of roads, hospitals, grocery stores, and other public infrastructure became vital for government decision makers. Mobile phone locations are increasingly assimilated for this purpose, but an alternative, unexplored, natively anonymous, absolute method would be to use geophysical sensing to directly measure public infrastructure usage. In this paper, we demonstrate how fiber-optic distributed acoustic sensing (DAS) connected to a telecommunication cable beneath Palo Alto, CA, successfully monitored traffic over a 2-month period, including major reductions associated with COVID-19 response. Continuous DAS recordings of over 450,000 individual vehicles were analyzed using an automatic template-matching detection algorithm based on roadbed strain. In one commuter sector, we found a 50% decrease in vehicles immediately following the order, but near Stanford Hospital, the traffic persisted. The DAS measurements correlate with mobile phone locations and urban seismic noise levels, suggesting geophysics would complement future digital city sensing systems.
View details for DOI 10.1029/2020GL089931
View details for PubMedID 32834188
View details for PubMedCentralID PMC7435531
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Velocity-Based Earthquake Detection Using Downhole Distributed Acoustic Sensing-Examples from the San Andreas Fault Observatory at Depth
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
2019; 109 (6): 2491–2500
View details for DOI 10.1785/0120190176
View details for Web of Science ID 000499983200024
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Estimating Signal and Structured Noise in Ultrasound Data using Prediction-Error Filters
SPIE-INT SOC OPTICAL ENGINEERING. 2019
View details for DOI 10.1117/12.2513514
View details for Web of Science ID 000471826100024
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A Seismic Shift in Scalable Acquisition Demands New Processing Fiber-optic seismic signal retrieval in urban areas with unsupervised learning for coherent noise removal
IEEE SIGNAL PROCESSING MAGAZINE
2018; 35 (2): 31–40
View details for DOI 10.1109/MSP.2017.2783381
View details for Web of Science ID 000427512300006
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Fiber-Optic Network Observations of Earthquake Wavefields
GEOPHYSICAL RESEARCH LETTERS
2017; 44 (23): 11792–99
View details for DOI 10.1002/2017GL075722
View details for Web of Science ID 000419102400013
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Time-lapse inverse theory with applications
GEOPHYSICS
2016; 81 (6): R485-R501
View details for DOI 10.1190/GEO2016-0131.1
View details for Web of Science ID 000392926400061
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Integrated VTI model building with seismic data, geologic information, and rock-physics modeling - Part 1: Theory and synthetic test
GEOPHYSICS
2016; 81 (5): C177-C191
View details for DOI 10.1190/GEO2015-0592.1
View details for Web of Science ID 000392752200007
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Integrated VTI model building with seismic data, geologic information, and rock-physics modeling - Part 2: Field data test
GEOPHYSICS
2016; 81 (5): C205-C218
View details for DOI 10.1190/GEO2015-0593.1
View details for Web of Science ID 000392752200009
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High-frequency Rayleigh-wave tomography using traffic noise from Long Beach, California
GEOPHYSICS
2016; 81 (2): B43-B53
View details for DOI 10.1190/GEO2015-0415.1
View details for Web of Science ID 000377883100059
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Time-lapse inverse theory with applications
GEOPHYSICS
2016; 81 (6): R485-R501
View details for DOI 10.1190/geo2016-0131.1
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Ambient seismic noise tomography at Ekofisk
GEOPHYSICS
2015; 80 (6): B167-B176
View details for DOI 10.1190/GEO2014-0558.1
View details for Web of Science ID 000368347800025
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Imaging with primaries and free-surface multiples by joint least-squares reverse time migration
GEOPHYSICS
2015; 80 (6): S223-S235
View details for DOI 10.1190/GEO2015-0093.1
View details for Web of Science ID 000368347800056
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Near-surface Scholte wave velocities at Ekofisk from short noise recordings by seismic noise gradiometry
GEOPHYSICAL RESEARCH LETTERS
2015; 42 (17): 7031-7038
View details for DOI 10.1002/2015GL065027
View details for Web of Science ID 000363411200021
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Elliptical-anisotropic eikonal phase velocity tomography
GEOPHYSICAL RESEARCH LETTERS
2015; 42 (3): 758-764
View details for DOI 10.1002/2014GL062805
View details for Web of Science ID 000351355600012
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Time-lapse seismic noise correlation tomography at Valhall
GEOPHYSICAL RESEARCH LETTERS
2014; 41 (17): 6116-6122
View details for DOI 10.1002/2014GL061156
View details for Web of Science ID 000342757400008
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Q-compensated reverse-time migration
GEOPHYSICS
2014; 79 (3): S77-S87
View details for DOI 10.1190/GEO2013-0344.1
View details for Web of Science ID 000338322900031
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Simultaneous inversion of full data bandwidth by tomographic full-waveform inversion
GEOPHYSICS
2014; 79 (3): WA129-WA140
View details for DOI 10.1190/GEO2013-0340.1
View details for Web of Science ID 000338322900060
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Wave-equation migration velocity analysis for VTI models
GEOPHYSICS
2014; 79 (3): WA59-WA68
View details for DOI 10.1190/GEO2013-0338.1
View details for Web of Science ID 000338322900054
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Salt delineation via interpreter-guided 3D seismic image segmentation
INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
2014; 2 (2): T79-?
View details for DOI 10.1190/INT-2013-0159.1
View details for Web of Science ID 000364204900029
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Advances in finite-frequency imaging and inversion - Introduction
GEOPHYSICS
2014; 79 (3): WA1-WA2
View details for DOI 10.1190/2014-0326-SPSEINTRO.1
View details for Web of Science ID 000338322900049
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Q-compensated reverse-time migration
Geophysics
2014; 79 (3): S77-S87
View details for DOI 10.1190/geo2013-0344.1
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Salt delineation via interpreter-guided 3D seismic image segmentation
Interpretation
2014; 2 (2): T79-T88
View details for DOI 10.1190/INT-2013-0159.1
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Daily reservoir-scale subsurface monitoring using ambient seismic noise
GEOPHYSICAL RESEARCH LETTERS
2013; 40 (12): 2969-2974
View details for DOI 10.1002/grl.50594
View details for Web of Science ID 000321951300017
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Moveout-based wave-equation migration velocity analysis
GEOPHYSICS
2013; 78 (2): U31-U39
View details for DOI 10.1190/GEO2012-0082.1
View details for Web of Science ID 000319858000039
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Subsalt imaging by target-oriented inversion-based imaging: A 3D field-data example
GEOPHYSICS
2013; 78 (2): S47-S58
View details for DOI 10.1190/GEO2012-0263.1
View details for Web of Science ID 000319858000033
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Subsalt velocity estimation by target-oriented wave-equation migration velocity analysis: A 3D field-data example
GEOPHYSICS
2013; 78 (1): U19-U29
View details for DOI 10.1190/geo2012-0262.1
View details for Web of Science ID 000316673800041
- Tomographic full waveform inversion (TFWI) by combining full waveform inversion with wave-equation migration velocity analysis Proceedings of the 82d Annual International Meeting, Society of Exploration Geophysicists 2012: 2727–2731
- Residual moveout-based wave-equation migration velocity analysis Proceedings of the 82d Annual International Meeting, Society of Exploration Geophysicists 2012: 4261–4265
- Joint imaging with Streamer and OBN data 82d Annual International Meeting, Society of Exploration Geophysicists 2012: 2930–34
- Imaging with multiples using linearized full-wave inversion Proceedings of the 82d Annual International Meeting, Society of Exploration Geophysicists 2012: 3724–3728
- Tomographic Full Waveform Inversion: Practical and Computationally Feasible Approach Proceedings of the 82d Annual International Meeting, Society of Exploration Geophysicists 2012: 2983–2987
- Time-lapse seismic imaging by linearized joint inversion - A Valhall Field case study Proceedings of the 82d Annual International Meeting, Society of Exploration Geophysicists 2012: 4499–4504
- Continuous Passive Seismic Monitoring of CCS Projects by Correlating Seismic Noise - A Feasibility Study 74th Annual International Conference, European Association of Geoscientists & Engineers 2012
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Target-oriented wavefield tomography using synthesized Born data
GEOPHYSICS
2011; 76 (5): WB191-WB207
View details for DOI 10.1190/GEO2010-0383.1
View details for Web of Science ID 000297946200044
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Fast 3D migration-velocity analysis by wavefield extrapolation using the prestack exploding-reflector model
GEOPHYSICS
2011; 76 (5): WB151-WB167
View details for DOI 10.1190/GEO2010-0384.1
View details for Web of Science ID 000297946200040
- Subsalt velocity analysis by target‐oriented wavefield tomography: A 3‐D field‐data example 81st Annual International Meeting, Society of Exploration Geophysicists 2011: 3958–63
- Wave‐equation inversion of time‐lapse seismic data sets 81st Annual International Meeting, Society of Exploration Geophysicists 2011: 4149–54
- Least‐squares reverse time migration/inversion for ocean bottom data: A case study Proceedings of the 81st Annual International Meeting, Society of Exploration Geophysicists 2011: 2369–2373
- Migration velocity analysis for anisotropic models Proceedings of the 81st Annual International Meeting, Society of Exploration Geophysicists 2011: 201–6
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Velocity estimation by image-focusing analysis
GEOPHYSICS
2010; 75 (6): U49-U60
View details for DOI 10.1190/1.3506505
View details for Web of Science ID 000285767900052
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Target-oriented joint least-squares migration/inversion of time-lapse seismic data sets
GEOPHYSICS
2010; 75 (3): R61-R73
View details for DOI 10.1190/1.3427635
View details for Web of Science ID 000278887000038
- Fast 3D velocity updates using the pre-stack exploding reflector model 80th Annual International Meeting, Society of Exploration Geophysicists 2010: 4375–79
- 3-D Seismic Imaging Investigations in Geophysics edited by Gardner, G. Society of Exploration Geophysicists. 2010; 14 (2nd Edition)
- Target oriented tomography using Born data 2010: 4066–70
- Velocity Estimation by Image Focusing Analysis 80th Annual International Meeting, Society of Exploration Geophysicists 2010: 4066–70
- Efficient Seismic Monitoring of Hydrocarbon Reservoirs Using Multiple Shooting Vessels Offshore Technology Conference 2010
- Speeding up sesimic image segmentation 80th Annual International Meeting, Society of Exploration Geophysicists 2010: 1276–80
- Joint least-squares inversion of up- and down-going signal for ocean bottom data sets 80th Annual International Meeting, Society of Exploration Geophysicists 2010: 2752–2756
- Low frequency passive seismic interferometry for land data 80th Annual International Meeting, Society of Exploration Geophysicists 2010: 4041–46
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Imaging by target-oriented wave-equation inversion
GEOPHYSICS
2009; 74 (6): WCA109-WCA120
View details for DOI 10.1190/1.3250267
View details for Web of Science ID 000273896600011
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3D plane-wave migration in tilted coordinates: A field data example
GEOPHYSICS
2009; 74 (6): WCA199-WCA209
View details for DOI 10.1190/1.3242752
View details for Web of Science ID 000273896600020
- Joint target-oriented wave-equation inversion of multiple time-lapse seismic data sets 79th Annual International Meeting, Society of Exploration Geophysicists 2009: 3825–29
- Wave-equation tomography using image-space phase encoded data 79th Annual International Meeting, Society of Exploration Geophysicists 2009: 3964–68
- Least-squares migration/inversion of blended data 79th Annual International Meeting, Society of Exploration Geophysicists 2009: 2859–63
- Seismic image segmentation with multiple attributes 79th Annual International Meeting, Society of Exploration Geophysicists 2009: 3700–3704
- Joint preconditioned least-squares inversion of simultaneous source time-lapse seismic data sets 79th Annual International Meeting, Society of Exploration Geophysicists 2009: 3914–18
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Plane-wave migration in tilted coordinates
GEOPHYSICS
2008; 73 (5): S185-S194
View details for DOI 10.1190/1.2957891
View details for Web of Science ID 000259801000024
- Fast velocity model building by plane-wave migration in tilted coordinates, automated volume-based picking, and tomography 78th Annual International Meeting, Society of Exploration Geophysicists 2008: 3270–74
- Prestack Depth Migration and Velocity Model Building Geophysics reprint series edited by Jones, I. F., Bloor, R. I., Biondi, B. L., Etgen, J. T. Society of Exploration Geophysicists. 2008
- Image segmentation for velocity model construction and updating 78th Annual International Meeting, Society of Exploration Geophysicists 2008: 3088–92
- Angle-domain common-image gathers for steep reflectors 78th Annual International Meeting, Society of Exploration Geophysicists 2008: 3068–72
- Imaging by target-oriented wave-equation inversion: 3-D field data results 78th Annual International Meeting, Society of Exploration Geophysicists 2008: 2181–85
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Wave-equation angle-domain common-image gathers for converted waves
GEOPHYSICS
2008; 73 (1): S17-S26
View details for DOI 10.1190/1.2821193
View details for Web of Science ID 000253749000024
- Wavepath tomography for model building and hazard detection 78th Annual International Meeting, Society of Exploration Geophysicists 2008: 3098–4002
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Attenuation of specular and diffracted 2D multiples in image space
GEOPHYSICS
2007; 72 (5): V97-V109
View details for DOI 10.1190/1.2759439
View details for Web of Science ID 000249683600032
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Application of image segmentation to tracking 3D salt boundaries
GEOPHYSICS
2007; 72 (4): P47-P56
View details for DOI 10.1190/1.2732553
View details for Web of Science ID 000248365000026
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Seismoelectric imaging of shallow targets
GEOPHYSICS
2007; 72 (2): G9-G20
View details for DOI 10.1190/1.2428267
View details for Web of Science ID 000245441200027
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Residual moveout in anisotropic angle-domain common-image gathers
GEOPHYSICS
2007; 72 (2): S93-S103
View details for DOI 10.1190/1.2430562
View details for Web of Science ID 000245441200043
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Angle-domain common-image gathers from anisotropic migration
GEOPHYSICS
2007; 72 (2): S81-S91
View details for DOI 10.1190/1.2430561
View details for Web of Science ID 000245441200042
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Seismoelectric data processing for surface surveys of shallow targets
GEOPHYSICS
2007; 72 (2): G1-G8
View details for DOI 10.1190/1.2424542
View details for Web of Science ID 000245441200026
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Least-squares attenuation of reverse-time-migration artifacts
GEOPHYSICS
2007; 72 (1): S19-S23
View details for DOI 10.1190/1.2399367
View details for Web of Science ID 000243728500026
- Wavepath tomography for subsalt velocity‐model building 77th Annual International Meeting, Society of Exploration Geophysicists 2007: 1938–42
- Concepts and applications in 3-D seismic imaging Society of Exploration Geophysicists. 2007
- 3D plane‐wave migration in tilted coordinates 77th Annual International Meeting, Society of Exploration Geophysicists 2007: 2190–94
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Target-oriented wave-equation inversion
GEOPHYSICS
2006; 71 (4): A35-A38
View details for DOI 10.1190/1.2213369
View details for Web of Science ID 000240637500004
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Converted-wave azimuth moveout
GEOPHYSICS
2006; 71 (3): S99-S110
View details for DOI 10.1190/1.2194898
View details for Web of Science ID 000238819700048
- Accurate imaging of complex salt features with narrow azimuth migration 76th Annual International Meeting, Society of Exploration Geophysicists 2006: 2609–13
- 3-D Seismic Imaging Investigations in Geophysics Society of Exploration Geophysicists. 2006
- SEG Advanced Modeling (SEAM) today and tomorrow 76th Annual International Meeting, Society of Exploration Geophysicists 2006: 3531–34
- Least-square attenuation of reverse time migration artifacts 76th Annual International Meeting, Society of Exploration Geophysicists 2006: 2348–52
- Towards wave-equation imaging and velocity estimation Recoder 2006; 31: 47-53
- Imaging steep salt flank with plane-wave migration in tilted coordinates 76th Annual International Meeting, Society of Exploration Geophysicists 2006: 2372–76
- Prestack exploding-reflectors modeling for migration velocity analysis 76th Annual International Meeting, Society of Exploration Geophysicists 2006: 3056–60
- Residual moveout in anisotropic angle-domain common-image gathers with dipping reflectors 76th Annual International Meeting, Society of Exploration Geophysicists 2006: 224–28
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Wave-equation migration velocity analysis by focusing diffractions and reflections
GEOPHYSICS
2005; 70 (3): U19-U27
View details for Web of Science ID 000229808200017
- Common azimuth migration for elliptical and VTI media 75th Annual International Meeting, Society of Exploration Geophysicists 2005: SPMI 4.8
- Converted-waves angle-domain common-image gathers 75th Annual International Meeting, Society of Exploration Geophysicists 2005
- Target-oriented wave-equation inversion 75th Annual International Meeting, Society of Exploration Geophysicists 2005
- Seismic imaging of complex structures by reflection seismic data Data Analysis and Imaging with Global and Local Arrays edited by Levander, A., Nolet, G. American Geophysical Union. 2005
- Regularized least-squares inversion for 3-D subsalt imaging 75th Annual International Meeting, Society of Exploration Geophysicists 2005
- Which depth imaging method should you use? A road map through the maze of possibilities The Leading Edge 2005; 24: 602-606
- Diffraction-focusing migration velocity analysis with application to seismic and GPR data Geophysics 2005; 70: U19-27
- 3D wavefield extrapolation in laterally-varying tilted TI media 75th Annual International Meeting, Society of Exploration Geophysicists 2005: ANI 1.3
- Angle-domain common image gathers for anisotropic migration 75th Annual International Meeting, Society of Exploration Geophysicists 2005: SPMI 4.5
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Wave-equation migration velocity analysis. II. Subsalt imaging examples
EAGE/SEG Summer Research Workshop on Processing and Imaging of Seimic Data
WILEY-BLACKWELL PUBLISHING, INC. 2004: 607–23
View details for Web of Science ID 000224858500011
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Wave-equation migration velocity analysis. I. Theory
EAGE/SEG Summer Research Workshop on Processing and Imaging of Seimic Data
WILEY-BLACKWELL PUBLISHING, INC. 2004: 593–606
View details for Web of Science ID 000224858500010
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3D angle-domain common-image gathers for migration velocity analysis
EAGE/SEG Summer Research Workshop on Processing and Imaging of Seimic Data
WILEY-BLACKWELL PUBLISHING, INC. 2004: 575–91
View details for Web of Science ID 000224858500009
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Angle-domain common-image gathers for migration velocity analysis by wavefield-continuation imaging
GEOPHYSICS
2004; 69 (5): 1283-1298
View details for DOI 10.1190/1.1801945
View details for Web of Science ID 000224450900015
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Incorporating geologic information into reflection tomography
GEOPHYSICS
2004; 69 (2): 533-546
View details for DOI 10.1190/1.1707073
View details for Web of Science ID 000220814500023
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Numerical analysis of the azimuth moveout operator for vertically inhomogeneous media
GEOPHYSICS
2004; 69 (2): 554-561
View details for DOI 10.1190/1.1707075
View details for Web of Science ID 000220814500025
- Geologically constrained migration velocity analysis Geophysics 2004; 69: 533-546
- Velocity estimation for seismic data exhibiting focusing-effect AVO 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 2427–30
- 3-D angle-domain common-image gathers for migration velocity analysis Geophysical Prospecting 2004; 52: 575-591
- Image segmentation for tracking salt boundaries, 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 2443–46
- Residual move-out analysis with 3-D angle-domain common-image gathers 74th Annual International Meeting, Society of Exploration Geophysicists 2004 : 2391–94
- Attenuation of diffracted multiples in angle domain common image gathers 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 1301–4
- Acquisition geometry regularization for multicomponent data 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 2052–55
- Migration methods for passive seismic data, 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 1123–27
- Diffraction-focusing migration velocity analysis 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 2395–98
- Imaging overturned waves by plane-wave migration in tilted coordinates 74th Annual International Meeting, Society of Exploration Geophysicists 2004: 969–72
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Equivalence of source-receiver migration and shot-profile migration
GEOPHYSICS
2003; 68 (4): 1340-1347
View details for DOI 10.1190/1.1598127
View details for Web of Science ID 000220836300025
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Symplectic structure of wave-equation imaging: a path-integral approach based on the double-square-root equation
GEOPHYSICAL JOURNAL INTERNATIONAL
2003; 153 (1): 52-74
View details for Web of Science ID 000181632100004
- Operator aliasing in wavefield continuation migration, 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 1091–93
- Velocity updating from wavefield-continuation migration, EAGE-SEG (Summer) Research Workshop, 2003: T20
- Migration velocity analysis by recursive wavefield extrapolation EAGE-SEG (Summer) Research Workshop 2003
- Wavefield-continuation angle-domain common-image gathers for migration velocity analysis, 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 2104–7
- Wave-equation migration velocity analysis by inversion of differential image perturbations, 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 2124–27
- Narrow-azimuth migration of marine streamer data, 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 897–900
- Development of experimental methods in electroseismics, 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 557–59
- 2-D deconvolution imaging condition for shot profile migration, 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 1059–62
- Wave equation imaging comparisons: Survey sinking versus shot profile methods 73rd Annual International Meeting, Society of Exploration Geophysicists 2003: 885–88
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Seismic data reconstruction by inversion to common offset
GEOPHYSICS
2002; 67 (5): 1575-1585
View details for DOI 10.1190/1.1512803
View details for Web of Science ID 000178606500023
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Stable wide-angle Fourier finite-difference downward extrapolation of 3-D wavefields
GEOPHYSICS
2002; 67 (3): 872-882
View details for DOI 10.1190/1.1484530
View details for Web of Science ID 000176167700020
- Imaging of a rugose salt body in the deep Gulf of Mexico: Kirchhoff versus common azimuth wave-equation migration 72nd Annual International Meeting, Society of Exploration Geophysicists 2002: 1304–7
- Which depth imaging method should we use? A roadmap in the maze of 3-D depth imaging 72nd Annual International Meeting, Society of Exploration Geophysicists 2002: 1236–39
- Prestack imaging of overturned reflections by reverse time migration 72nd Annual International Meeting, Society of Exploration Geophysicists 2002: 1284–87
- 3-D prestack wave-equation imaging: a rapidly evolving technology 64th Annual International Conference, European Association of Geoscientists & Engineers European Association of Geoscientists & Engineers. 2002
- Subsalt event regularization with steering filters 72nd Annual International Meeting, Society of Exploration Geophysicists 2002: 1176–79
- Stolt residual migration for converted waves 72nd Annual International Meeting, Society of Exploration Geophysicists 2002: 986–89
- Amplitude preserving prestack imaging of irregularly sampled 3-D data 72nd Annual International Meeting, Society of Exploration Geophysicists 2002: 2170–73
- Velocity model building by wavefield-continuation imaging in the deepwater Gulf of Mexico The Leading Edge 2002; 21: 1232-1236
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Kirchhoff imaging beyond aliasing
GEOPHYSICS
2001; 66 (2): 654-666
View details for Web of Science ID 000168101200029
- Amplitude-preserved common image gathers by wave-equation migration 71st Annual International Meeting, Society of Exploration Geophysicists 2001: 296–99
- Stable wide-angle Fourier-finite difference downward extrapolation of 3-D wavefields 71st Annual International Meeting, Society of Exploration Geophysicists 2001: 1009–12
- Azimuth moveout for 3-D prestack imaging. "3-D Seismic Exploration", Geophysics reprint series 3-D Seismic Exploration, Geophysics reprint series 2001: 439-448
- 3-D residual velocity analysis and update toolkit for offset-domain prestack depth migration 71st Annual International Meeting, Society of Exploration Geophysicists 2001: 925–28
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The space-time domain: theory and modelling for anisotropic media
GEOPHYSICAL JOURNAL INTERNATIONAL
2001; 144 (1): 105-113
View details for Web of Science ID 000166526500009
- Symplectic structure of wave-equation imaging and inversion 2nd Wave InversionTechnology Workshop on Seismic True Amplitudes 2001
- 3-D migration velocity analysis for common image gathers in the reflection angle domain 71st Annual International Meeting, Society of Exploration Geophysicists 2001: 885–88
- 3-D wave-equation imaging of a North Sea dataset: common-azimuth migration + residual migration 70th Annual International Meeting, Society of Exploration Geophysicists 2000: 874–77
- Tau domain migration velocity analysis using angle domain CRP gathers and geologic constraint 70th Annual International Meeting, Society of Exploration Geophysicists 2000: 926–29
- 3-D wave-equation migration of a common-azimuth North Sea dataset 62nd Annual International Conference, European Association of Geoscientists & Engineers European Association of Geoscientists & Engineers. 2000: 231–235
- 3-D wave-equation prestack imaging under salt 70th Annual International Meeting, Society of Exploration Geophysicists 2000: 906–9
- Internet-based seismic processing: the future of geophysical computing 70th Annual International Meeting, Society of Exploration Geophysicists 2000: 2119–21
- Data regularization by inversion to common offset (ICO) 69th Annual International Meeting, Society of Exploration Geophysicists 1999: 1398–1401
- Wave-equation migration velocity analysis 69th Annual International Meeting, Society of Exploration Geophysicists 1999: 1723–26
- Angle-domain common image gathers by wave-equation migration 69th Annual International Meeting, Society of Exploration Geophysicists 1999: 824–27
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Azimuth moveout for 3-D prestack imaging
GEOPHYSICS
1998; 63 (2): 574-588
View details for Web of Science ID 000072734000026
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Imaging complex geologic structure with single-arrival Kirchhoff prestack depth migration
GEOPHYSICS
1997; 62 (5): 1533-1543
View details for Web of Science ID A1997XY08500020
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3-D prestack migration of common-azimuth data
GEOPHYSICS
1996; 61 (6): 1822-1832
View details for Web of Science ID A1996VW78500023
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3D DEPTH MIGRATION BY ROTATED MCCLELLAN FILTERS
GEOPHYSICAL PROSPECTING
1995; 43 (8): 1005-1020
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VELOCITY ESTIMATION BY BEAM STACK
GEOPHYSICS
1992; 57 (8): 1034-1047
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HIGH-RESOLUTION VELOCITY SPECTRA USING EIGENSTRUCTURE METHODS
GEOPHYSICS
1989; 54 (7): 832-842
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DIP MOVEOUT IN SHOT PROFILES
GEOPHYSICS
1987; 52 (11): 1473-1482
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