Advancements in Active/Passive Full Wavefield Inversion Seismic Imaging and Monitoring Techniques (SEG/AGU SRW 2014)

From SEG Wiki
Jump to navigation Jump to search
ADVERTISEMENT
SEG/AGU 2014 Summer Research Workshop
Date 22-24 July 2014
Host SEG/AGU
Location Hyatt Regency Vancouver, Vancouver, Canada

The purpose of this joint SEG-AGU summer research workshop was to bring together leading scientists in full wavefield seismic imaging/inversion research from across a broad spectrum to share their knowledge and challenges, compare notes and find synergies that may lead to new collaborations and breakthroughs in imaging the Earth.

Scientific Committee

Chair:
Prof. David Lumley, University of Western Australia

Co-Chair:
Prof. Greg Beroza, Stanford University

Members:
Uwe Albertin, Chevron
John Hole, Virginia Tech
German Prieto, MIT
Partha Routh, ExxonMobil
Victor Tsai, Caltech

Discussion Leaders

David Lumley (UWA), Greg Beroza (Stanford), John Hole (Virginia Tech), Victor Tsai (Caltech), Felix Herrmann (UBC), Peter Gerstoft (UCSD), Sjoerd de Ridder (UST China), German Prieto (MIT), Dylan Mikesell (MIT), Marine Denolle (Scripps), Uwe Albertin (Chevron), Jeff Shragge (UWA), Scott Burdick (MIT), Miaki Ishii (Harvard), Kees Wapenaar (TUDelft), Po Chen (Wyoming), Denes Vigh (WesternGeco), Mike Warner (Imperial), Mrinal Sen (UTIG), Gerhard Pratt (UWO), Biondo Biondi (Stanford), Jesse Lawrence (Stanford), Anne Obermann (ETH), Partha Routh (ExxonMobil)

Workshop Background

Rapid developments are occurring in advanced seismic imaging and inversion research, using "full wavefield" approaches and very large broadband sensor arrays. These advances are happening at detailed reservoir scales (hydrocarbons, geothermal, groundwater, CO2 sequestration…), up to much larger earthquake seismology and global plate tectonics scales.

Reservoir seismology researchers have decades of experience in developing full wavefield 3D and 4D (time-lapse) imaging and inversion techniques using active sources and large (10,000+) sensor arrays. These include (semi) permanent arrays on land and at sea, and wave-equation adjoint/inverse methods such as reverse time migration (RTM) and full waveform inversion (FWI). The ability to deploy large 3D semi-permanent arrays has opened up new possibilities for continuous recording, and thus to perform many new types of 3D and 4D full wavefield imaging and inversion with passive seismic data and ambient noise, something the earthquake seismology community is adept at.

In parallel, earthquake seismology researchers are increasingly deploying Large N broadband sensor arrays, which open up new possibilities for full wavefield imaging, monitoring and inversion at regional, basin, plate tectonic and global seismology scales. Using full wavefield adjoint imaging and inversion techniques, something the reservoir imaging community is adept at, it may be possible to gain unprecedented new resolution and understanding of earthquake source mechanisms, plate tectonic dynamics, and global earth structure.

It seems the time is right to bring together a broad cross-section of seismology imaging and inversion scientists to discuss recent advances, outstanding challenges, and the road ahead.

Workshop Topics

  • Large N, broadband, sensor arrays for both active source and passive seismic recording
  • Reverse-time/adjoint state imaging techniques and velocity analysis (RTM, MVA)
  • Full wavefield inversion (FWI) and velocity model estimation techniques
  • Wavefield coda, interferometry, and ambient noise imaging
  • Time-lapse monitoring, imaging and inversion using full wavefield techniques
  • Source mechanism estimation and inversion
  • Wave-equation detection and imaging of ultra weak microseismic energy (e.g., M < 0)
  • Plus many other wavefield imaging/inversion topics of interest

External links

find literature about
Advancements in Active/Passive Full Wavefield Inversion Seismic Imaging and Monitoring Techniques (SEG/AGU SRW 2014)
SEG button search.png Datapages button.png GeoScienceWorld button.png OnePetro button.png Schlumberger button.png Google button.png AGI button.png