TY - GEN
T1 - Fermat's interferometric principles for multiple reflection tomography
AU - Schuster, Gerard T.
PY - 2005
Y1 - 2005
N2 - Interferometric forms of Femat's principle are derived that converts traveltimes of free-surface multiples into those for lower-order events such as primary reflections, These primary reflection traveltimes can then be used to tomographically invert for layer velocities more accurately than standard traveltime tomography applied to multiples. As an example, Format's interferrometric principle converts VSP (vertical-seismic-profile) traveltimes of receiver-side ghosts and direct, waves to those for CDP (common-depth-point) primary reflections. These CDP traveltimes can be used to estimate, e.g., statics velocities for a 3D survey, which is impossible by conventional VSP tomography applied to primary traveltimes. This procedure is exact in the high frequency approximation, and it, can be extended to multiples in CDP and earthquake data. Fermat's interferometric principles presents new opportunities for imaging multiples and usefully extends the illumination area of conventional VSP. CDP and earthquake traveltime tomography.
AB - Interferometric forms of Femat's principle are derived that converts traveltimes of free-surface multiples into those for lower-order events such as primary reflections, These primary reflection traveltimes can then be used to tomographically invert for layer velocities more accurately than standard traveltime tomography applied to multiples. As an example, Format's interferrometric principle converts VSP (vertical-seismic-profile) traveltimes of receiver-side ghosts and direct, waves to those for CDP (common-depth-point) primary reflections. These CDP traveltimes can be used to estimate, e.g., statics velocities for a 3D survey, which is impossible by conventional VSP tomography applied to primary traveltimes. This procedure is exact in the high frequency approximation, and it, can be extended to multiples in CDP and earthquake data. Fermat's interferometric principles presents new opportunities for imaging multiples and usefully extends the illumination area of conventional VSP. CDP and earthquake traveltime tomography.
UR - http://www.scopus.com/inward/record.url?scp=33645121279&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33645121279
SN - 9073781981
SN - 9789073781986
T3 - 67th European Association of Geoscientists and Engineers, EAGE Conference and Exhibition, incorporating SPE EUROPE2005 - Extended Abstracts
SP - 63
EP - 67
BT - 67th European Association of Geoscientists and Engineers, EAGE Conference and Exhibition, incorporating SPE EUROPEC 2005 - Extended Abstracts
PB - Society of Petroleum Engineers
T2 - 67th European Association of Geoscientists and Engineers, EAGE Conference and Exhibition, incorporating SPE EUROPEC 2005 - Extended Abstracts
Y2 - 13 June 2005 through 16 June 2005
ER -