Multiscale phase inversion for vertical transverse isotropic media

Feng, Shihang1; Fu, Lei2; Feng, Zongcai1; Schuster, Gerard T.1

2021-08-01

10.1111/1365-2478.13137

GEOPHYSICAL PROSPECTING   影响因子和分区

0016-8025

1365-2478

Inanisotropy full waveform inversion, the pseudo-acoustic approximation is widely used to reduce the computation cost. However, artefacts and inaccurate predictions of amplitudes by the pseudo-acoustic approximation often result in slow convergence in the full waveform inversion iterations and inaccurate tomograms. To solve this problem, multiscale phase inversion methodology is extended to vertical transverse isotropic media. In multiscale phase inversion, the amplitude spectra of the predicted data are replaced by those of the recorded data to mitigate the amplitude mismatch problem. Moreover, multiscale phase inversion tends to avoid the local minimum problem of full waveform inversion by temporally integrating the traces several times. Numerical tests on synthetic data and field data demonstrate the superiority of this method compared to conventional multiscale full waveform inversion for vertical transverse isotropic media.

Anisotropy Inversion Inverse Problem Tomography Full waveform

SCI ; EI

英语

其他

Geochemistry & Geophysics

Geochemistry & Geophysics

WOS:000691017700001

WILEY

20213510839006

Numerical methods

Numerical Methods:921.6

GEOSCIENCES

Web of Science

1.King Abdullah Univ Sci & Technol, Dept Earth Sci & Engn, Thuwal, Saudi Arabia
2.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China

Feng, Shihang,Fu, Lei,Feng, Zongcai,et al. Multiscale phase inversion for vertical transverse isotropic media[J]. GEOPHYSICAL PROSPECTING,2021,69:1634-1649.

Feng, Shihang,Fu, Lei,Feng, Zongcai,&Schuster, Gerard T..(2021).Multiscale phase inversion for vertical transverse isotropic media.GEOPHYSICAL PROSPECTING,69,1634-1649.

Feng, Shihang,et al."Multiscale phase inversion for vertical transverse isotropic media".GEOPHYSICAL PROSPECTING 69(2021):1634-1649.