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SUMMARY:The future of imaging and inversion in a complex Earth - Robertsso
 n\, J (Schlumberger Cambridge Research)
DTSTART:20111214T133000Z
DTEND:20111214T141500Z
UID:TALK34954@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Abstract: It is now over 25 years since the introduction of 3D
  seismic\ndata acquisition and processing.  These techniques have proven t
 o be very\nuseful. In fact\, in a recent industry wide survey\, 3D seismic
  was regarded as the single most valuable technology for the hydrocarbon i
 ndustry over the last two decades. The objectives of seismic surveys are t
 o provide a structural image as\nwell as to estimate Earth properties of t
 he sub-surface.  Due to the high demand for hydrocarbons\, industry have i
 ncreasingly been exploring substantially more complex or difficult areas\,
  such as deep water or sub-salt reservoirs. As a result\, a step-change in
  technology for inversion and imaging has occurred\, made possible by incr
 easingly powerful computational platforms. New imaging methods such as ful
 l waveform inversion (Tarantola\, Pratt) and Reverse Time Migration (RTM) 
 utilize the full richness of recorded data (as opposed to conventional ima
 ging methods which use simple reflections\nonly). Consequently\, industria
 l scientists have become increasingly aware of the limitations of what has
  been called 3D seismic data.  This has been limited in three respects: i)
  bandwidth\; ii) the lateral extent of source and receiver arrays\; iii) a
 liasing in terms of source and receiver spacing.\n\nIn my presentation I w
 ill show how recent advances overcomes some of these limitations.\n\n
LOCATION:Seminar Room 1\, Newton Institute
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