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SUMMARY:Seismic depth imaging: Pushing the boundaries of resolution and ac
 curacy - James Hobro (Schlumberger Cambridge Research)
DTSTART:20230619T150000Z
DTEND:20230619T160000Z
UID:TALK200413@talks.cam.ac.uk
DESCRIPTION:Depth Imaging uses processed surface seismic data to estimate 
 models and produce images of the Earth's subsurface with their features co
 rrectly positioned in depth. Depth models describe the seismic properties 
 of the subsurface\, allowing us to characterise the non-linear relationshi
 p between the structure of physical features generating seismic reflection
 s\, and the seismic data recorded at the surface. Depth Migration uses the
 se models to produce an image by correctly repositioning the recorded seis
 mic data. Ray-based Tomography and Full Waveform Inversion are the key met
 hods used to obtain these models.I will review the role of these two key i
 nverse problems in seismic depth imaging and explore how advances in model
 ling the physics of seismic wave propagation (especially seismic anisotrop
 y and elastic effects) have brought improved resolution and accuracy while
  complicating the inverse problem.
LOCATION:Seminar Room 1\, Newton Institute
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