TY - JOUR
T1 - Time-reversal scatterer detection in 3D media using Kirchhoff back propagation
AU - Landa, Evgeny
AU - Sinitsin, Pavel
AU - Shustak, Matan
AU - Reshef, Moshe
N1 - Publisher Copyright:
© 2018 SEG
PY - 2018/8/27
Y1 - 2018/8/27
N2 - Medium- and small- scale (less than the seismic wavelength) subsurface elements such as faults, pinchouts, karsts, fractures, fluid contact etc. play an important role in seismic exploration and production. They act as scattering objects which can be effectively detected and located using the time reversal (TR) principle. In this study, we propose a 3D TR algorithm to spatially localize subsurface scatterers. The method uses numerical back propagation of the time-reversed registered wavefield by Kirchhoff modeling. The back propagation step can be followed by focusing analysis of each obtained snap shot. Alternatively, resulting depth image is computed as a simple integration of the energy or semblance over all back propagated snapshots. The usefulness of the method is demonstrated using both synthetic and field data examples.
AB - Medium- and small- scale (less than the seismic wavelength) subsurface elements such as faults, pinchouts, karsts, fractures, fluid contact etc. play an important role in seismic exploration and production. They act as scattering objects which can be effectively detected and located using the time reversal (TR) principle. In this study, we propose a 3D TR algorithm to spatially localize subsurface scatterers. The method uses numerical back propagation of the time-reversed registered wavefield by Kirchhoff modeling. The back propagation step can be followed by focusing analysis of each obtained snap shot. Alternatively, resulting depth image is computed as a simple integration of the energy or semblance over all back propagated snapshots. The usefulness of the method is demonstrated using both synthetic and field data examples.
UR - http://www.scopus.com/inward/record.url?scp=85121805165&partnerID=8YFLogxK
U2 - 10.1190/segam2018-2996113.1
DO - 10.1190/segam2018-2996113.1
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AN - SCOPUS:85121805165
SN - 1052-3812
SP - 4468
EP - 4472
JO - SEG Technical Program Expanded Abstracts
JF - SEG Technical Program Expanded Abstracts
T2 - Society of Exploration Geophysicists International Exposition and 88th Annual Meeting, SEG 2018
Y2 - 14 October 2018 through 19 October 2018
ER -