TY - GEN
T1 - Attenuation compensation in least-squares reverse time migration using the visco-acoustic wave equation
AU - Dutta, Gaurav
AU - Lu, Kai
AU - Wang, Xin
AU - Schuster, Gerard T.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) consortium for their support and KAUST Supercomputing Laboratory for providing the computational resources.
PY - 2013/8/19
Y1 - 2013/8/19
N2 - Attenuation leads to distortion of amplitude and phase of seismic waves propagating inside the earth. Conventional acoustic and least-squares reverse time migration do not account for this distortion which leads to defocusing of migration images in highly attenuative geological environments. To account for this distortion, we propose to use the visco-acoustic wave equation for least-squares reverse time migration. Numerical tests on synthetic data show that least-squares reverse time migration with the visco-acoustic wave equation corrects for this distortion and produces images with better balanced amplitudes compared to the conventional approach. © 2013 SEG.
AB - Attenuation leads to distortion of amplitude and phase of seismic waves propagating inside the earth. Conventional acoustic and least-squares reverse time migration do not account for this distortion which leads to defocusing of migration images in highly attenuative geological environments. To account for this distortion, we propose to use the visco-acoustic wave equation for least-squares reverse time migration. Numerical tests on synthetic data show that least-squares reverse time migration with the visco-acoustic wave equation corrects for this distortion and produces images with better balanced amplitudes compared to the conventional approach. © 2013 SEG.
UR - http://hdl.handle.net/10754/625127
UR - http://library.seg.org/doi/abs/10.1190/segam2013-1131.1
UR - http://www.scopus.com/inward/record.url?scp=85018196674&partnerID=8YFLogxK
U2 - 10.1190/segam2013-1131.1
DO - 10.1190/segam2013-1131.1
M3 - Conference contribution
SP - 3721
EP - 3725
BT - SEG Technical Program Expanded Abstracts 2013
PB - Society of Exploration Geophysicists
ER -