Back to Search
Start Over
Kirchhoff prestack migration using the suppressed wave equation estimation of traveltime (SWEET) algorithm in VTI media.
- Source :
- Exploration Geophysics; Dec2015, Vol. 46 Issue 4, p342-348, 7p
- Publication Year :
- 2015
-
Abstract
- This paper examines anisotropic prestack Kirchhoff migration. We used pseudo-acoustic wave equations in the complex frequency domain to describe the wave propagation in a vertical transversely isotropic (VTI) medium. Both amplitudes and traveltimes were calculated efficiently using the suppressed wave equation estimation of traveltime (SWEET) algorithm. The accuracy of the traveltimes obtained with the SWEET algorithm was verified by comparing the traveltime contours simulated with the anisotropic elastic wave equation using a staggered-grid method. Finally, we tested our migration algorithm using the two-dimensional HESS VTI model. We correctly imaged the shape of both the salt and background layer structures. We also reduced the numerical artefacts compared to the isotropic technique. [ABSTRACT FROM AUTHOR]
- Subjects :
- WAVE equation
ELASTIC waves
NUMERICAL analysis
SALT
SOUND waves
Subjects
Details
- Language :
- English
- ISSN :
- 08123985
- Volume :
- 46
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Exploration Geophysics
- Publication Type :
- Academic Journal
- Accession number :
- 111211085
- Full Text :
- https://doi.org/10.1071/EG14112