Fast residual static correction method using first arrivals in the 3D shot–receiver united domainMeng Zou 1 5 Qiang Zhou 2 3 Luming Li 1 Rui Zhu 4 Kun Luo 4
1 College of Geophysics, Chengdu University of Technology, Chengdu 610059, China.
2 Geophysical Company of China National Petroleum Corporation Chuanqing Drilling Engineering Company Limited, Chengdu 610213, China.
3 Mountain Geophysical Technology Test Center, China National Petroleum Corporation, Chengdu 610213, China.
4 College of Mathematics, Sichuan University, Chengdu 610065, China.
5 Corresponding author. Email: firstname.lastname@example.org
Exploration Geophysics 48(3) 246-254 https://doi.org/10.1071/EG15035
Submitted: 4 May 2015 Accepted: 13 March 2016 Published: 20 April 2016
The result of processing the residual static correction has a profound effect on the finished quality of a reconstructed image. Static correction using wave reflection techniques cannot be guaranteed when the signal-to-noise ratio is too low or the residual static correction is larger than a half-wavelength of the refracted waves. A novel method based on first arrivals in a 3D shot–receiver united domain is presented to handle these situations. This method fits and smooths the first breaks in a robust 3D way to calculate the shot and receiver static. This method has a lower sensitivity to first arrivals than traditional methods. Applications on synthetic and real data show very high performance of the presented algorithm.
Key words: 3D, first arrivals, first break time, residual static, robust fit, united domain.
ReferencesCleveland, W. S., 1979, Robust locally weighted regression and smoothing scatterplots: Journal of the American Statistical Association, 74, 829–836
| Robust locally weighted regression and smoothing scatterplots:CrossRef |
Feng, F., Zhang, Y., Deng, Z., and Wang, H., 2011, The multivariate statistic residual static correction method and examples of its application: 2011 SEG Annual Meeting, San Antonio, Texas, 1454–1457.
Li, L., 1989, Automatic residual static correction using first arrivals before NMO correction: Oil Geophysical Prospecting, 2, 179–186
Ronen, J., and Claerbout, J. F., 1985, Surface-consistent residual statics estimation by stack-power maximization: Geophysics, 50, 2759–2767
| Surface-consistent residual statics estimation by stack-power maximization:CrossRef |
Rothman, D. H., 1985, Nonlinear inversion, statistical mechanics, and residual statics estimation: Geophysics, 50, 2784–2796
| Nonlinear inversion, statistical mechanics, and residual statics estimation:CrossRef |
Rothman, D. H., 1986, Automatic estimation of large residual statics corrections: Geophysics, 51, 332–346
| Automatic estimation of large residual statics corrections:CrossRef |
Wilson, W. G., and Vasudevan, K., 1991, Application of the genetic algorithm to residual statics estimation: Geophysical Research Letters, 18, 2181–2184
| Application of the genetic algorithm to residual statics estimation:CrossRef |
Wilson, W. G., Laidlaw, W. G., and Vasudevan, K., 1994, Residual statics estimation using the genetic algorithm: Geophysics, 59, 766–774
| Residual statics estimation using the genetic algorithm:CrossRef |
Zheng, H., and Xiao, G., 1993, Relative static correction using first arrival stack: Oil Geophysical Prospecting, 28, 226–231