Browse > Article

A Study of Waveform Inversion for Improvement of Sub-Salt Migration Image  

Ha, Wan-Soo (Department of Energy Systems Engineering, Seoul National University)
Pyun, Suk-Joon (Research Institute of Energy and Resources, Seoul National University)
Son, Woo-Hyun (Department of Energy Systems Engineering, Seoul National University)
Shin, Chang-Soo (Department of Energy Systems Engineering, Seoul National University)
Ko, Seung-Won (Korea National Oil Company)
Seo, Young-Tak (Korea National Oil Company)
Publication Information
Geophysics and Geophysical Exploration / v.11, no.3, 2008 , pp. 177-183 More about this Journal
Abstract
The sub-salt imaging technique becomes more crucial to detect the hydro-carbonates in petroleum exploration as the target reservoirs get deeper. However, the weak reflections from the sub-salt structures prevent us from obtaining high fidelity sub-salt image. As an effort to overcome this difficulty, we applied the waveform inversion by implementing multi-grid technique to the sub-salt imaging. Through the comparison between the conventional waveform inversion using fixed grid and the multi-grid technique, we confirmed that the waveform inversion using multi-grid technique has advantages over the conventional fixed grid waveform inversion. We showed that the multi-grid technique can complement he velocity estimation result of the waveform inversion for imaging the sub-salt structures, of which velocity model cannot be obtained correctly by the conventional fixed grid waveform inversion.
Keywords
waveform inversion; reverse time migration; sub-salt; multi-grid;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Fornberg, B., 1987, The pseudospectral method: Comparisons with finite-differences for the elastic wave equation, Geophysics, 52, 483-501   DOI   ScienceOn
2 Shin, C., and Min, D. J., 2006, Waveform inversion using a logarithmic wavefield, Geophysics, 71, R31-R42   DOI
3 Tarantola, A., 1984, Inversion of seismic reflection data in the acoustic approximation, Geophysics, 49, 1259-1266   DOI   ScienceOn
4 Kosloff, D. D., and Baysal, E., 1982, Forward modeling by a Fourier method, Geophysics, 47, 1402-1412   DOI   ScienceOn
5 Claerbout, J. F., and Muir, F., 1973, Robust modeling with erratic data, Geophysics, 38, 826-844   DOI
6 McMechan, G. A., 1983, Migration by exploration of timedependent boundary values, Geophysical Prospecting, 31, 413-420   DOI   ScienceOn
7 Pica, A., Diet, J. P., and Tarantola, A., 1990, Nonlinear inversion of seismic reflection data in a laterally invariant medium, Geophysics, 55, 284-292   DOI
8 Hemon, C., 1978, Equations d'onde et modeles, Geophysical Prospecting, 26, 790-821   DOI   ScienceOn
9 Baysal, E., Kosloff, D. D., and Sherwood, J. W. C., 1983, Reverse-time migration, Geophysics, 48, 1514-1524   DOI   ScienceOn
10 Whitemore, N. D., 1983, Iterative depth migration by backward time propagation, 53rd Ann. Internat. Mtg., Soc. Expl. Geophys., Expanded Abstracts, 827-830
11 Pratt, R. G., Shin, C., and Hicks, G. J., 1998, Gauss-Newton and full Newton methods in frequency domain seismic waveform inversions, Geophysical Journal International, 133, 341-362   DOI   ScienceOn
12 Gazdag, J., 1981, Modeling of the acoustic wave equation with transform methods, Geophysics, 46, 854-859   DOI   ScienceOn
13 Bunks, C., Saleck, F. M., Zaleski, S., and Chavent, G., 1995, Multiscale seismic waveform inversion, Geophysics, 60, 1457-1473   DOI   ScienceOn
14 Pyun, S., 2008, Comparison study of frequency-domain waveform inversion using various objective functions, Ph.D. thesis, Seoul National University
15 Gauthier, O., Virieux, J., and Tarantola, A., 1986, Twodimensional nonlinear inversion of seismic waveforms: Numerical results, Geophysics, 51, 1387-1403   DOI   ScienceOn
16 Lailly, P., 1983, The seismic inverse problem as a sequence of before stack migration, Conference on inverse scattering: Theory and Application, Society for Industrial and Applied Mathematics
17 Symes, W. W., and Carazzone, J. J., 1991, Velocity inversion by differential semblance optimization, Geophysics, 56, 654-663. Tarantola, A., 1984, Inversion of seismic reflection data in the acoustic approximation, Geophysics, 49, 1259-1266
18 Kolb, P., Collino, F., and Lailly, P., 1986, Prestack inversion of a 1D medium, Proceedings of the Institute of Electrical and Electronics Engineers, Inc., 74, 498-506
19 Pratt, R. G., 1999, Seismic waveform inversion in the frequency domain, Part1: Theory and verification in a physical scale model, Geophysics, 64, 888-901   DOI
20 Shin, C., Pyun, S., and Bednar, J. B., 2007, Comparison of waveform inversion, part 1: conventional wavefield vs logarithmic wavefield, Geophysical Prospecting, 55, 449-464   DOI   ScienceOn
21 Loewenthal, D., and Mufti, I. R., 1983, Reverse time migration in spatial frequency domain, Geophysics, 48, 627-635   DOI
22 Sirgue, L., and Pratt, R. G., 2004, Efficient waveform inversion and imaging: A strategy for selecting temporal frequencies, Geophysics, 69, 231-248   DOI   ScienceOn
23 Shin, C., Ko, S., Marfurt, K. J., and Yang, D., 2003, Wave equation calculation of most energetic traveltimes and amplitudes for Kirchhoff prestack migration, Geophysics, 68, 2040-2042   DOI   ScienceOn
24 Geller, R. J., and Hara, T., 1993, Two efficient algorithms for iterative linearized inversion of seismic waveform data, Geophysical Journal International, 115, 699-710   DOI   ScienceOn