TY - GEN
T1 - Diffraction imaging and velocity analysis using oriented velocity continuation
AU - Decker, Luke
AU - Fomel, Sergey
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank KAUST and Shell for partial financial support of thiswork
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2014/8/5
Y1 - 2014/8/5
N2 - We perform seismic diffraction imaging and velocity analysis by separating diffractions from specular reflections and decomposing them into slope components. We image slope components using extrapolation in migration velocity in time-space-slope coordinates. The extrapolation is described by a convection-type partial differential equation and implemented efficiently in the Fourier domain. Synthetic and field data experiments show that the proposed algorithm is able to detect accurate time-migration velocities by automatically measuring the flatness of events in dip-angle gathers.
AB - We perform seismic diffraction imaging and velocity analysis by separating diffractions from specular reflections and decomposing them into slope components. We image slope components using extrapolation in migration velocity in time-space-slope coordinates. The extrapolation is described by a convection-type partial differential equation and implemented efficiently in the Fourier domain. Synthetic and field data experiments show that the proposed algorithm is able to detect accurate time-migration velocities by automatically measuring the flatness of events in dip-angle gathers.
UR - http://hdl.handle.net/10754/597710
UR - http://library.seg.org/doi/abs/10.1190/segam2014-1471.1
UR - http://www.scopus.com/inward/record.url?scp=85005990610&partnerID=8YFLogxK
U2 - 10.1190/segam2014-1471.1
DO - 10.1190/segam2014-1471.1
M3 - Conference contribution
SP - 4810
EP - 4815
BT - SEG Technical Program Expanded Abstracts 2014
PB - Society of Exploration Geophysicists
ER -